Merge branch 'master' into go-go-gadget-webpack

* master: (67 commits)
  Add some API endpoints for time tracking.
  use destructuring syntax instead
  add changelog yml file
  correct User_agent placement in robots.txt
  Fixing typo
  Fix Project#update_repository_size to convert MB to Bytes properly
  Remove repository trait from factories that don't need it in features
  Add the `:repository` trait to `:project` factories in Cucumber steps
  Add a `:repository` trait to the `:empty_project` factory
  Update clipboard_button text: Copy commit SHA to clipboard
  Fix search bar filter dropdown scrollbars
  get rid of log
  fix UI behaviour - only make new calls when button is clicked and dropdown is not displayed
  better UI fix - simple solution
  Disable all cops in .rubocop_todo.yml
  fix spec
  refactored a bunch of stuff based on feedback
  fix serializer
  fix bug retrieving medians
  fix specs
  ...

215 files changed, 3716 insertions, 710 deletions

diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index 6d4d7170fe8..d581610162f 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -62,7 +62,7 @@ Lint/UnusedMethodArgument:
 # Offense count: 93
 # Configuration parameters: CountComments.
 Metrics/BlockLength:
-  Max: 288
+  Enabled: false
 
 # Offense count: 3
 # Cop supports --auto-correct.
@@ -125,7 +125,7 @@ RSpec/MessageSpies:
 
 # Offense count: 3036
 RSpec/MultipleExpectations:
-  Max: 37
+  Enabled: false
 
 # Offense count: 2133
 RSpec/NamedSubject:
diff --git a/app/assets/javascripts/diff_notes/diff_notes_bundle.js.es6 b/app/assets/javascripts/diff_notes/diff_notes_bundle.js.es6
index 0a25b8f1ccd..f0edfb8aaf1 100644
--- a/app/assets/javascripts/diff_notes/diff_notes_bundle.js.es6
+++ b/app/assets/javascripts/diff_notes/diff_notes_bundle.js.es6
@@ -3,9 +3,6 @@
 /* global ResolveCount */
 
 function requireAll(context) { return context.keys().map(context); }
-
-window.Vue = require('vue');
-window.Vue.use(require('vue-resource'));
 requireAll(require.context('./models',     false, /^\.\/.*\.(js|es6)$/));
 requireAll(require.context('./stores',     false, /^\.\/.*\.(js|es6)$/));
 requireAll(require.context('./services',   false, /^\.\/.*\.(js|es6)$/));
diff --git a/app/assets/javascripts/issuable/issuable_bundle.js.es6 b/app/assets/javascripts/issuable/issuable_bundle.js.es6
new file mode 100644
index 00000000000..e927cc0077c
--- /dev/null
+++ b/app/assets/javascripts/issuable/issuable_bundle.js.es6
@@ -0,0 +1 @@
+require('./time_tracking/time_tracking_bundle');
diff --git a/app/assets/javascripts/issuable/time_tracking/components/collapsed_state.js.es6 b/app/assets/javascripts/issuable/time_tracking/components/collapsed_state.js.es6
new file mode 100644
index 00000000000..bf27fbac5d7
--- /dev/null
+++ b/app/assets/javascripts/issuable/time_tracking/components/collapsed_state.js.es6
@@ -0,0 +1,41 @@
+/* global Vue */
+require('../../../lib/utils/pretty_time');
+
+(() => {
+  Vue.component('time-tracking-collapsed-state', {
+    name: 'time-tracking-collapsed-state',
+    props: [
+      'showComparisonState',
+      'showSpentOnlyState',
+      'showEstimateOnlyState',
+      'showNoTimeTrackingState',
+      'timeSpentHumanReadable',
+      'timeEstimateHumanReadable',
+      'stopwatchSvg',
+    ],
+    methods: {
+      abbreviateTime(timeStr) {
+        return gl.utils.prettyTime.abbreviateTime(timeStr);
+      },
+    },
+    template: `
+      <div class='sidebar-collapsed-icon'>
+        <div v-html='stopwatchSvg'></div>
+        <div class='time-tracking-collapsed-summary'>
+          <div class='compare' v-if='showComparisonState'>
+            <span>{{ abbreviateTime(timeSpentHumanReadable) }} / {{ abbreviateTime(timeEstimateHumanReadable) }}</span>
+          </div>
+          <div class='estimate-only' v-if='showEstimateOnlyState'>
+            <span class='bold'>-- / {{ abbreviateTime(timeEstimateHumanReadable) }}</span>
+          </div>
+          <div class='spend-only' v-if='showSpentOnlyState'>
+            <span class='bold'>{{ abbreviateTime(timeSpentHumanReadable) }} / --</span>
+          </div>
+          <div class='no-tracking' v-if='showNoTimeTrackingState'>
+            <span class='no-value'>None</span>
+          </div>
+        </div>
+      </div>
+      `,
+  });
+})();
diff --git a/app/assets/javascripts/issuable/time_tracking/components/comparison_pane.js.es6 b/app/assets/javascripts/issuable/time_tracking/components/comparison_pane.js.es6
new file mode 100644
index 00000000000..750468c679b
--- /dev/null
+++ b/app/assets/javascripts/issuable/time_tracking/components/comparison_pane.js.es6
@@ -0,0 +1,69 @@
+/* global Vue */
+require('../../../lib/utils/pretty_time');
+
+(() => {
+  const prettyTime = gl.utils.prettyTime;
+
+  Vue.component('time-tracking-comparison-pane', {
+    name: 'time-tracking-comparison-pane',
+    props: [
+      'timeSpent',
+      'timeEstimate',
+      'timeSpentHumanReadable',
+      'timeEstimateHumanReadable',
+    ],
+    computed: {
+      parsedRemaining() {
+        const diffSeconds = this.timeEstimate - this.timeSpent;
+        return prettyTime.parseSeconds(diffSeconds);
+      },
+      timeRemainingHumanReadable() {
+        return prettyTime.stringifyTime(this.parsedRemaining);
+      },
+      timeRemainingTooltip() {
+        const prefix = this.timeRemainingMinutes < 0 ? 'Over by' : 'Time remaining:';
+        return `${prefix} ${this.timeRemainingHumanReadable}`;
+      },
+      /* Diff values for comparison meter */
+      timeRemainingMinutes() {
+        return this.timeEstimate - this.timeSpent;
+      },
+      timeRemainingPercent() {
+        return `${Math.floor((this.timeSpent / this.timeEstimate) * 100)}%`;
+      },
+      timeRemainingStatusClass() {
+        return this.timeEstimate >= this.timeSpent ? 'within_estimate' : 'over_estimate';
+      },
+      /* Parsed time values */
+      parsedEstimate() {
+        return prettyTime.parseSeconds(this.timeEstimate);
+      },
+      parsedSpent() {
+        return prettyTime.parseSeconds(this.timeSpent);
+      },
+    },
+    template: `
+      <div class='time-tracking-comparison-pane'>
+        <div class='compare-meter' data-toggle='tooltip' data-placement='top' role='timeRemainingDisplay'
+          :aria-valuenow='timeRemainingTooltip'
+          :title='timeRemainingTooltip'
+          :data-original-title='timeRemainingTooltip'
+          :class='timeRemainingStatusClass'>
+          <div class='meter-container' role='timeSpentPercent' :aria-valuenow='timeRemainingPercent'>
+            <div :style='{ width: timeRemainingPercent }' class='meter-fill'></div>
+          </div>
+          <div class='compare-display-container'>
+            <div class='compare-display pull-left'>
+              <span class='compare-label'>Spent</span>
+              <span class='compare-value spent'>{{ timeSpentHumanReadable }}</span>
+            </div>
+            <div class='compare-display estimated pull-right'>
+              <span class='compare-label'>Est</span>
+              <span class='compare-value'>{{ timeEstimateHumanReadable }}</span>
+            </div>
+          </div>
+        </div>
+      </div>
+    `,
+  });
+})();
diff --git a/app/assets/javascripts/issuable/time_tracking/components/estimate_only_pane.js.es6 b/app/assets/javascripts/issuable/time_tracking/components/estimate_only_pane.js.es6
new file mode 100644
index 00000000000..309e9f2f9ef
--- /dev/null
+++ b/app/assets/javascripts/issuable/time_tracking/components/estimate_only_pane.js.es6
@@ -0,0 +1,13 @@
+/* global Vue */
+(() => {
+  Vue.component('time-tracking-estimate-only-pane', {
+    name: 'time-tracking-estimate-only-pane',
+    props: ['timeEstimateHumanReadable'],
+    template: `
+      <div class='time-tracking-estimate-only-pane'>
+        <span class='bold'>Estimated:</span>
+        {{ timeEstimateHumanReadable }}
+      </div>
+    `,
+  });
+})();
diff --git a/app/assets/javascripts/issuable/time_tracking/components/help_state.js.es6 b/app/assets/javascripts/issuable/time_tracking/components/help_state.js.es6
new file mode 100644
index 00000000000..d7ced6d7151
--- /dev/null
+++ b/app/assets/javascripts/issuable/time_tracking/components/help_state.js.es6
@@ -0,0 +1,24 @@
+/* global Vue */
+(() => {
+  Vue.component('time-tracking-help-state', {
+    name: 'time-tracking-help-state',
+    props: ['docsUrl'],
+    template: `
+      <div class='time-tracking-help-state'>
+        <div class='time-tracking-info'>
+          <h4>Track time with slash commands</h4>
+          <p>Slash commands can be used in the issues description and comment boxes.</p>
+          <p>
+            <code>/estimate</code>
+            will update the estimated time with the latest command.
+          </p>
+          <p>
+            <code>/spend</code>
+            will update the sum of the time spent.
+          </p>
+          <a class='btn btn-default learn-more-button' :href='docsUrl'>Learn more</a>
+        </div>
+      </div>
+    `,
+  });
+})();
diff --git a/app/assets/javascripts/issuable/time_tracking/components/no_tracking_pane.js.es6 b/app/assets/javascripts/issuable/time_tracking/components/no_tracking_pane.js.es6
new file mode 100644
index 00000000000..1d2ca643b5b
--- /dev/null
+++ b/app/assets/javascripts/issuable/time_tracking/components/no_tracking_pane.js.es6
@@ -0,0 +1,11 @@
+/* global Vue */
+(() => {
+  Vue.component('time-tracking-no-tracking-pane', {
+    name: 'time-tracking-no-tracking-pane',
+    template: `
+      <div class='time-tracking-no-tracking-pane'>
+        <span class='no-value'>No estimate or time spent</span>
+      </div>
+    `,
+  });
+})();
diff --git a/app/assets/javascripts/issuable/time_tracking/components/spent_only_pane.js.es6 b/app/assets/javascripts/issuable/time_tracking/components/spent_only_pane.js.es6
new file mode 100644
index 00000000000..ed283fec3c3
--- /dev/null
+++ b/app/assets/javascripts/issuable/time_tracking/components/spent_only_pane.js.es6
@@ -0,0 +1,13 @@
+/* global Vue */
+(() => {
+  Vue.component('time-tracking-spent-only-pane', {
+    name: 'time-tracking-spent-only-pane',
+    props: ['timeSpentHumanReadable'],
+    template: `
+      <div class='time-tracking-spend-only-pane'>
+        <span class='bold'>Spent:</span>
+        {{ timeSpentHumanReadable }}
+      </div>
+    `,
+  });
+})();
diff --git a/app/assets/javascripts/issuable/time_tracking/components/time_tracker.js.es6 b/app/assets/javascripts/issuable/time_tracking/components/time_tracker.js.es6
new file mode 100644
index 00000000000..e38f7852b1c
--- /dev/null
+++ b/app/assets/javascripts/issuable/time_tracking/components/time_tracker.js.es6
@@ -0,0 +1,119 @@
+/* global Vue */
+
+require('./help_state');
+require('./collapsed_state');
+require('./spent_only_pane');
+require('./no_tracking_pane');
+require('./estimate_only_pane');
+require('./comparison_pane');
+
+(() => {
+  Vue.component('issuable-time-tracker', {
+    name: 'issuable-time-tracker',
+    props: [
+      'time_estimate',
+      'time_spent',
+      'human_time_estimate',
+      'human_time_spent',
+      'stopwatchSvg',
+      'docsUrl',
+    ],
+    data() {
+      return {
+        showHelp: false,
+      };
+    },
+    computed: {
+      timeSpent() {
+        return this.time_spent;
+      },
+      timeEstimate() {
+        return this.time_estimate;
+      },
+      timeEstimateHumanReadable() {
+        return this.human_time_estimate;
+      },
+      timeSpentHumanReadable() {
+        return this.human_time_spent;
+      },
+      hasTimeSpent() {
+        return !!this.timeSpent;
+      },
+      hasTimeEstimate() {
+        return !!this.timeEstimate;
+      },
+      showComparisonState() {
+        return this.hasTimeEstimate && this.hasTimeSpent;
+      },
+      showEstimateOnlyState() {
+        return this.hasTimeEstimate && !this.hasTimeSpent;
+      },
+      showSpentOnlyState() {
+        return this.hasTimeSpent && !this.hasTimeEstimate;
+      },
+      showNoTimeTrackingState() {
+        return !this.hasTimeEstimate && !this.hasTimeSpent;
+      },
+      showHelpState() {
+        return !!this.showHelp;
+      },
+    },
+    methods: {
+      toggleHelpState(show) {
+        this.showHelp = show;
+      },
+    },
+    template: `
+      <div class='time_tracker time-tracking-component-wrap' v-cloak>
+        <time-tracking-collapsed-state
+          :show-comparison-state='showComparisonState'
+          :show-help-state='showHelpState'
+          :show-spent-only-state='showSpentOnlyState'
+          :show-estimate-only-state='showEstimateOnlyState'
+          :time-spent-human-readable='timeSpentHumanReadable'
+          :time-estimate-human-readable='timeEstimateHumanReadable'
+          :stopwatch-svg='stopwatchSvg'>
+        </time-tracking-collapsed-state>
+        <div class='title hide-collapsed'>
+          Time tracking
+          <div class='help-button pull-right'
+            v-if='!showHelpState'
+            @click='toggleHelpState(true)'>
+            <i class='fa fa-question-circle'></i>
+          </div>
+          <div class='close-help-button pull-right'
+            v-if='showHelpState'
+            @click='toggleHelpState(false)'>
+            <i class='fa fa-close'></i>
+          </div>
+        </div>
+        <div class='time-tracking-content hide-collapsed'>
+          <time-tracking-estimate-only-pane
+            v-if='showEstimateOnlyState'
+            :time-estimate-human-readable='timeEstimateHumanReadable'>
+          </time-tracking-estimate-only-pane>
+          <time-tracking-spent-only-pane
+            v-if='showSpentOnlyState'
+            :time-spent-human-readable='timeSpentHumanReadable'>
+          </time-tracking-spent-only-pane>
+          <time-tracking-no-tracking-pane
+            v-if='showNoTimeTrackingState'>
+          </time-tracking-no-tracking-pane>
+          <time-tracking-comparison-pane
+            v-if='showComparisonState'
+            :time-estimate='timeEstimate'
+            :time-spent='timeSpent'
+            :time-spent-human-readable='timeSpentHumanReadable'
+            :time-estimate-human-readable='timeEstimateHumanReadable'>
+          </time-tracking-comparison-pane>
+          <transition name='help-state-toggle'>
+            <time-tracking-help-state
+              v-if='showHelpState'
+              :docs-url='docsUrl'>
+            </time-tracking-help-state>
+          </transition>
+        </div>
+      </div>
+    `,
+  });
+})();
diff --git a/app/assets/javascripts/issuable/time_tracking/time_tracking_bundle.js.es6 b/app/assets/javascripts/issuable/time_tracking/time_tracking_bundle.js.es6
new file mode 100644
index 00000000000..1ca01d3bdb9
--- /dev/null
+++ b/app/assets/javascripts/issuable/time_tracking/time_tracking_bundle.js.es6
@@ -0,0 +1,62 @@
+/* global Vue */
+
+require('./components/time_tracker');
+require('../../smart_interval');
+require('../../subbable_resource');
+
+(() => {
+  /* This Vue instance represents what will become the parent instance for the
+    * sidebar. It will be responsible for managing `issuable` state and propagating
+    * changes to sidebar components. We will want to create a separate service to
+    * interface with the server at that point.
+   */
+
+  class IssuableTimeTracking {
+    constructor(issuableJSON) {
+      const parsedIssuable = JSON.parse(issuableJSON);
+      return this.initComponent(parsedIssuable);
+    }
+
+    initComponent(parsedIssuable) {
+      this.parentInstance = new Vue({
+        el: '#issuable-time-tracker',
+        data: {
+          issuable: parsedIssuable,
+        },
+        methods: {
+          fetchIssuable() {
+            return gl.IssuableResource.get.call(gl.IssuableResource, {
+              type: 'GET',
+              url: gl.IssuableResource.endpoint,
+            });
+          },
+          updateState(data) {
+            this.issuable = data;
+          },
+          subscribeToUpdates() {
+            gl.IssuableResource.subscribe(data => this.updateState(data));
+          },
+          listenForSlashCommands() {
+            $(document).on('ajax:success', '.gfm-form', (e, data) => {
+              const subscribedCommands = ['spend_time', 'time_estimate'];
+              const changedCommands = data.commands_changes;
+
+              if (changedCommands && _.intersection(subscribedCommands, changedCommands).length) {
+                this.fetchIssuable();
+              }
+            });
+          },
+        },
+        created() {
+          this.fetchIssuable();
+        },
+        mounted() {
+          this.subscribeToUpdates();
+          this.listenForSlashCommands();
+        },
+      });
+    }
+  }
+
+  gl.IssuableTimeTracking = IssuableTimeTracking;
+})(window.gl || (window.gl = {}));
diff --git a/app/assets/javascripts/lib/utils/pretty_time.js.es6 b/app/assets/javascripts/lib/utils/pretty_time.js.es6
index ccaf447eb0b..ae397212e55 100644
--- a/app/assets/javascripts/lib/utils/pretty_time.js.es6
+++ b/app/assets/javascripts/lib/utils/pretty_time.js.es6
@@ -4,13 +4,13 @@
    * stringifyTime condensed or non-condensed, abbreviateTimelengths)
    * */
 
-  class PrettyTime {
-
+  const utils = window.gl.utils = gl.utils || {};
+  const prettyTime = utils.prettyTime = {
     /*
      * Accepts seconds and returns a timeObject { weeks: #, days: #, hours: #, minutes: # }
      * Seconds can be negative or positive, zero or non-zero.
     */
-    static parseSeconds(seconds) {
+    parseSeconds(seconds) {
       const DAYS_PER_WEEK = 5;
       const HOURS_PER_DAY = 8;
       const MINUTES_PER_HOUR = 60;
@@ -24,7 +24,7 @@
         minutes: 1,
       };
 
-      let unorderedMinutes = PrettyTime.secondsToMinutes(seconds);
+      let unorderedMinutes = prettyTime.secondsToMinutes(seconds);
 
       return _.mapObject(timePeriodConstraints, (minutesPerPeriod) => {
         const periodCount = Math.floor(unorderedMinutes / minutesPerPeriod);
@@ -33,35 +33,33 @@
 
         return periodCount;
       });
-    }
+    },
 
     /*
     * Accepts a timeObject and returns a condensed string representation of it
     * (e.g. '1w 2d 3h 1m' or '1h 30m'). Zero value units are not included.
     */
 
-    static stringifyTime(timeObject) {
+    stringifyTime(timeObject) {
       const reducedTime = _.reduce(timeObject, (memo, unitValue, unitName) => {
         const isNonZero = !!unitValue;
         return isNonZero ? `${memo} ${unitValue}${unitName.charAt(0)}` : memo;
       }, '').trim();
       return reducedTime.length ? reducedTime : '0m';
-    }
+    },
 
     /*
     * Accepts a time string of any size (e.g. '1w 2d 3h 5m' or '1w 2d') and returns
     *  the first non-zero unit/value pair.
     */
 
-    static abbreviateTime(timeStr) {
+    abbreviateTime(timeStr) {
       return timeStr.split(' ')
         .filter(unitStr => unitStr.charAt(0) !== '0')[0];
-    }
+    },
 
-    static secondsToMinutes(seconds) {
+    secondsToMinutes(seconds) {
       return Math.abs(seconds / 60);
-    }
-  }
-
-  gl.PrettyTime = PrettyTime;
+    },
+  };
 })(window.gl || (window.gl = {}));
diff --git a/app/assets/javascripts/lib/vue_resource.js.es6 b/app/assets/javascripts/lib/vue_resource.js.es6
new file mode 100644
index 00000000000..49babdea2e1
--- /dev/null
+++ b/app/assets/javascripts/lib/vue_resource.js.es6
@@ -0,0 +1,2 @@
+window.Vue = require('vue');
+window.Vue.use(require('vue-resource'));
diff --git a/app/assets/javascripts/notes.js b/app/assets/javascripts/notes.js
index 148d2382bb0..586c015bfc8 100644
--- a/app/assets/javascripts/notes.js
+++ b/app/assets/javascripts/notes.js
@@ -3,6 +3,7 @@
 /* global GLForm */
 /* global Autosave */
 /* global ResolveService */
+/* global mrRefreshWidgetUrl */
 
 require('./autosave');
 window.autosize = require('vendor/autosize');
@@ -245,6 +246,16 @@ require('vendor/task_list');
     };
 
 
+    Notes.prototype.handleCreateChanges = function(note) {
+      if (typeof note === 'undefined') {
+        return;
+      }
+
+      if (note.commands_changes && note.commands_changes.indexOf('merge') !== -1) {
+        $.get(mrRefreshWidgetUrl);
+      }
+    };
+
     /*
     Render note in main comments area.
 
@@ -430,6 +441,7 @@ require('vendor/task_list');
      */
 
     Notes.prototype.addNote = function(xhr, note, status) {
+      this.handleCreateChanges(note);
       return this.renderNote(note);
     };
 
diff --git a/app/assets/javascripts/vue_pipelines_index/stage.js.es6 b/app/assets/javascripts/vue_pipelines_index/stage.js.es6
index f075a995846..32973132174 100644
--- a/app/assets/javascripts/vue_pipelines_index/stage.js.es6
+++ b/app/assets/javascripts/vue_pipelines_index/stage.js.es6
@@ -5,18 +5,19 @@
   gl.VueStage = Vue.extend({
     data() {
       return {
-        count: 0,
         builds: '',
         spinner: '<span class="fa fa-spinner fa-spin"></span>',
       };
     },
     props: ['stage', 'svgs', 'match'],
     methods: {
-      fetchBuilds() {
-        if (this.count > 0) return null;
+      fetchBuilds(e) {
+        const areaExpanded = e.currentTarget.attributes['aria-expanded'];
+
+        if (areaExpanded && (areaExpanded.textContent === 'true')) return null;
+
         return this.$http.get(this.stage.dropdown_path)
           .then((response) => {
-            this.count += 1;
             this.builds = JSON.parse(response.body).html;
           }, () => {
             const flash = new Flash('Something went wrong on our end.');
@@ -39,7 +40,7 @@
         return `has-tooltip ci-status-icon ci-status-icon-${this.stage.status.group}`;
       },
       svg() {
-        const icon = this.stage.status.icon;
+        const { icon } = this.stage.status;
         const stageIcon = icon.replace(/icon/i, 'stage_icon');
         return this.svgs[this.match(stageIcon)];
       },
@@ -50,18 +51,25 @@
     template: `
       <div>
         <button
-          @click='fetchBuilds'
+          @click='fetchBuilds($event)'
           :class="triggerButtonClass"
           :title='stage.title'
           data-placement="top"
           data-toggle="dropdown"
-          type="button">
+          type="button"
+        >
           <span v-html="svg"></span>
           <i class="fa fa-caret-down "></i>
         </button>
         <ul class="dropdown-menu mini-pipeline-graph-dropdown-menu js-builds-dropdown-container">
           <div class="arrow-up"></div>
-          <div :class="dropdownClass" class="js-builds-dropdown-list scrollable-menu" v-html="buildsOrSpinner"></div>
+          <div
+            @click=''
+            :class="dropdownClass"
+            class="js-builds-dropdown-list scrollable-menu"
+            v-html="buildsOrSpinner"
+          >
+          </div>
         </ul>
       </div>
     `,
diff --git a/app/assets/stylesheets/framework/filters.scss b/app/assets/stylesheets/framework/filters.scss
index fee38b05023..d957ec64654 100644
--- a/app/assets/stylesheets/framework/filters.scss
+++ b/app/assets/stylesheets/framework/filters.scss
@@ -76,7 +76,7 @@
 
 .filter-dropdown {
   max-height: 215px;
-  overflow-x: scroll;
+  overflow: auto;
 }
 
 .filter-dropdown-item {
@@ -86,7 +86,7 @@
     text-align: left;
     padding: 8px 16px;
     text-overflow: ellipsis;
-    overflow-y: hidden;
+    overflow: hidden;
     border-radius: 0;
 
     .fa {
diff --git a/app/assets/stylesheets/framework/sidebar.scss b/app/assets/stylesheets/framework/sidebar.scss
index 838f5442fff..f0b03710c79 100644
--- a/app/assets/stylesheets/framework/sidebar.scss
+++ b/app/assets/stylesheets/framework/sidebar.scss
@@ -236,9 +236,13 @@ header.header-sidebar-pinned {
   @media (min-width: $screen-md-min) {
     padding-right: $gutter_width;
 
-    .merge-request-tabs-holder.affix {
+    &:not(.with-overlay) .merge-request-tabs-holder.affix {
       right: $gutter_width;
     }
+
+    &.with-overlay .merge-request-tabs-holder.affix {
+      right: $sidebar_collapsed_width;
+    }
   }
 
   &.with-overlay {
diff --git a/app/assets/stylesheets/framework/variables.scss b/app/assets/stylesheets/framework/variables.scss
index 349cd9c189e..07cb669a46e 100644
--- a/app/assets/stylesheets/framework/variables.scss
+++ b/app/assets/stylesheets/framework/variables.scss
@@ -5,7 +5,7 @@ $sidebar_collapsed_width: 62px;
 $sidebar_width: 220px;
 $gutter_collapsed_width: 62px;
 $gutter_width: 290px;
-$gutter_inner_width: 258px;
+$gutter_inner_width: 250px;
 $sidebar-transition-duration: .15s;
 $sidebar-breakpoint: 1024px;
 
@@ -56,6 +56,7 @@ $black-transparent: rgba(0, 0, 0, 0.3);
 $border-white-light: darken($white-light, $darken-border-factor);
 $border-white-normal: darken($white-normal, $darken-border-factor);
 
+$border-gray-light: darken($gray-light, $darken-border-factor);
 $border-gray-normal: darken($gray-normal, $darken-border-factor);
 $border-gray-dark: darken($white-normal, $darken-border-factor);
 
@@ -85,6 +86,7 @@ $warning-message-border: #f0e2bb;
  */
 $border-color: #e5e5e5;
 $focus-border-color: #3aabf0;
+$sidebar-collapsed-icon-color: #999;
 $well-expand-item: #e8f2f7;
 $well-inner-border: #eef0f2;
 $well-light-border: #f1f1f1;
@@ -280,6 +282,7 @@ $dropdown-hover-color: #3b86ff;
 */
 $btn-active-gray: #ececec;
 $btn-active-gray-light: e4e7ed;
+$btn-white-active: #848484;
 
 /*
 * Badges
@@ -433,6 +436,7 @@ $help-shortcut-header-color: #333;
 */
 $issues-today-bg: #f3fff2;
 $issues-today-border: #e1e8d5;
+$compare-display-color: #888;
 
 /*
 * jQuery UI
diff --git a/app/assets/stylesheets/pages/issuable.scss b/app/assets/stylesheets/pages/issuable.scss
index 0ae5dc5c537..324c6cec96a 100644
--- a/app/assets/stylesheets/pages/issuable.scss
+++ b/app/assets/stylesheets/pages/issuable.scss
@@ -473,3 +473,102 @@
     }
   }
 }
+
+.time_tracker {
+  padding-bottom: 0;
+  border-bottom: 0;
+
+
+  .sidebar-collapsed-icon {
+
+    > .stopwatch-svg {
+      display: inline-block;
+    }
+
+    svg {
+      width: 16px;
+      height: 16px;
+      fill: $sidebar-collapsed-icon-color;
+    }
+
+    &:hover svg {
+      fill: $gl-text-color;
+    }
+  }
+
+  .help-button,
+  .close-help-button {
+    cursor: pointer;
+  }
+
+  .compare-meter {
+    &.within_estimate {
+      .meter-fill {
+        background: $gl-primary;
+      }
+    }
+
+    &.over_estimate {
+      .meter-fill {
+        background: $red-light;
+      }
+
+      .time-remaining,
+      .compare-value.spent {
+        color: $red-light;
+      }
+    }
+  }
+
+  .meter-container {
+    background: $border-gray-light;
+    border-radius: 3px;
+
+    .meter-fill {
+      max-width: 100%;
+      height: 5px;
+      border-radius: 3px;
+      background: $gl-primary;
+    }
+  }
+
+  .compare-display-container {
+    display: flex;
+    justify-content: space-between;
+    margin-top: 5px;
+
+    .compare-display {
+      font-size: 13px;
+      color: $compare-display-color;
+
+      .compare-value {
+        color: $gl-text-color;
+      }
+    }
+  }
+
+  .time-tracking-help-state {
+    background: $white-light;
+    margin: 16px -20px 0;
+    padding: 16px 20px;
+    border-top: 1px solid $border-gray-light;
+    border-bottom: 1px solid $border-gray-light;
+
+    a:hover {
+      color: $btn-white-active;
+    }
+  }
+
+  .help-state-toggle-enter-active {
+    transition: all .8s ease;
+  }
+
+  .help-state-toggle-leave-active {
+    transition: all .5s ease;
+  }
+
+  .help-state-toggle-enter,
+  .help-state-toggle-leave-active {
+    opacity: 0;
+  }
+}
diff --git a/app/assets/stylesheets/pages/pipelines.scss b/app/assets/stylesheets/pages/pipelines.scss
index 8861315d776..8dff22e32bd 100644
--- a/app/assets/stylesheets/pages/pipelines.scss
+++ b/app/assets/stylesheets/pages/pipelines.scss
@@ -44,8 +44,8 @@
 
     .pipeline-info,
     .pipeline-commit,
-    .pipeline-actions,
-    .pipeline-stages {
+    .pipeline-stages,
+    .pipeline-actions {
       width: 20%;
     }
   }
@@ -185,6 +185,7 @@
 
   .stage-cell {
     font-size: 0;
+    padding: 10px 4px;
 
     > .stage-container > div > button > span > svg,
     > .stage-container > button > svg {
@@ -202,8 +203,8 @@
       position: relative;
       margin-right: 6px;
 
-      .tooltip {
-        white-space: nowrap;
+      .tooltip-inner {
+        padding: 3px 4px;
       }
 
       &:not(:last-child) {
@@ -348,6 +349,7 @@
   padding: $gl-padding;
   white-space: nowrap;
   transition: max-height 0.3s, padding 0.3s;
+  overflow: auto;
 
   .stage-column-list,
   .builds-container > ul {
diff --git a/app/controllers/concerns/cycle_analytics_params.rb b/app/controllers/concerns/cycle_analytics_params.rb
index 2aaf8f2b451..52e06f4945a 100644
--- a/app/controllers/concerns/cycle_analytics_params.rb
+++ b/app/controllers/concerns/cycle_analytics_params.rb
@@ -1,6 +1,10 @@
 module CycleAnalyticsParams
   extend ActiveSupport::Concern
 
+  def options(params)
+    @options ||= { from: start_date(params), current_user: current_user }
+  end
+
   def start_date(params)
     params[:start_date] == '30' ? 30.days.ago : 90.days.ago
   end
diff --git a/app/controllers/projects/compare_controller.rb b/app/controllers/projects/compare_controller.rb
index ec02fc15d35..d32966645c8 100644
--- a/app/controllers/projects/compare_controller.rb
+++ b/app/controllers/projects/compare_controller.rb
@@ -25,8 +25,17 @@ class Projects::CompareController < Projects::ApplicationController
   end
 
   def create
-    redirect_to namespace_project_compare_path(@project.namespace, @project,
+    if params[:from].blank? || params[:to].blank?
+      flash[:alert] = "You must select from and to branches"
+      from_to_vars = {
+        from: params[:from].presence,
+        to: params[:to].presence
+      }
+      redirect_to namespace_project_compare_index_path(@project.namespace, @project, from_to_vars)
+    else
+      redirect_to namespace_project_compare_path(@project.namespace, @project,
                                                params[:from], params[:to])
+    end
   end
 
   private
diff --git a/app/controllers/projects/cycle_analytics/events_controller.rb b/app/controllers/projects/cycle_analytics/events_controller.rb
index 13b3eec761f..b69d46f2c41 100644
--- a/app/controllers/projects/cycle_analytics/events_controller.rb
+++ b/app/controllers/projects/cycle_analytics/events_controller.rb
@@ -9,56 +9,52 @@ module Projects
       before_action :authorize_read_merge_request!, only: [:code, :review]
 
       def issue
-        render_events(events.issue_events)
+        render_events(cycle_analytics[:issue].events)
       end
     
       def plan
-        render_events(events.plan_events)
+        render_events(cycle_analytics[:plan].events)
       end
     
       def code
-        render_events(events.code_events)
+        render_events(cycle_analytics[:code].events)
       end
     
       def test
-        options[:branch] = events_params[:branch_name]
+        options(events_params)[:branch] = events_params[:branch_name]
     
-        render_events(events.test_events)
+        render_events(cycle_analytics[:test].events)
       end
     
       def review
-        render_events(events.review_events)
+        render_events(cycle_analytics[:review].events)
       end
     
       def staging
-        render_events(events.staging_events)
+        render_events(cycle_analytics[:staging].events)
       end
     
       def production
-        render_events(events.production_events)
+        render_events(cycle_analytics[:production].events)
       end
     
       private
-    
-      def render_events(events_list)
+
+      def render_events(events)
         respond_to do |format|
           format.html
-          format.json { render json: { events: events_list } }
+          format.json { render json: { events: events } }
         end
       end
     
-      def events
-        @events ||= Gitlab::CycleAnalytics::Events.new(project: project, options: options)
-      end
-    
-      def options
-        @options ||= { from: start_date(events_params), current_user: current_user }
+      def cycle_analytics
+        @cycle_analytics ||= ::CycleAnalytics.new(project, options(events_params))
       end
     
       def events_params
         return {} unless params[:events].present?
     
-        params[:events].slice(:start_date, :branch_name)
+        params[:events].permit(:start_date, :branch_name)
       end
     end
   end
diff --git a/app/controllers/projects/cycle_analytics_controller.rb b/app/controllers/projects/cycle_analytics_controller.rb
index ac639ef015b..88ac3ad046b 100644
--- a/app/controllers/projects/cycle_analytics_controller.rb
+++ b/app/controllers/projects/cycle_analytics_controller.rb
@@ -6,11 +6,9 @@ class Projects::CycleAnalyticsController < Projects::ApplicationController
   before_action :authorize_read_cycle_analytics!
 
   def show
-    @cycle_analytics = ::CycleAnalytics.new(@project, current_user, from: start_date(cycle_analytics_params))
+    @cycle_analytics = ::CycleAnalytics.new(@project, options(cycle_analytics_params))
 
-    stats_values, cycle_analytics_json = generate_cycle_analytics_data
-
-    @cycle_analytics_no_data = stats_values.blank?
+    @cycle_analytics_no_data = @cycle_analytics.no_stats?
 
     respond_to do |format|
       format.html
@@ -23,50 +21,14 @@ class Projects::CycleAnalyticsController < Projects::ApplicationController
   def cycle_analytics_params
     return {} unless params[:cycle_analytics].present?
 
-    { start_date: params[:cycle_analytics][:start_date] }
+    params[:cycle_analytics].permit(:start_date)
   end
 
-  def generate_cycle_analytics_data
-    stats_values = []
-
-    cycle_analytics_view_data = [[:issue, "Issue", "Related Issues", "Time before an issue gets scheduled"],
-                                 [:plan, "Plan", "Related Commits", "Time before an issue starts implementation"],
-                                 [:code, "Code", "Related Merge Requests", "Time spent coding"],
-                                 [:test, "Test", "Relative Builds Trigger by Commits", "The time taken to build and test the application"],
-                                 [:review, "Review", "Relative Merged Requests", "The time taken to review the code"],
-                                 [:staging, "Staging", "Relative Deployed Builds", "The time taken in staging"],
-                                 [:production, "Production", "Related Issues", "The total time taken from idea to production"]]
-
-    stats = cycle_analytics_view_data.reduce([]) do |stats, (stage_method, stage_text, stage_legend, stage_description)|
-      value = @cycle_analytics.send(stage_method).presence
-
-      stats_values << value.abs if value
-
-      stats << {
-        title: stage_text,
-        description: stage_description,
-        legend: stage_legend,
-        value: value && !value.zero? ? distance_of_time_in_words(value) : nil
-      }
-
-      stats
-    end
-
-    issues = @cycle_analytics.summary.new_issues
-    commits = @cycle_analytics.summary.commits
-    deploys = @cycle_analytics.summary.deploys
-
-    summary = [
-      { title: "New Issue".pluralize(issues), value: issues },
-      { title: "Commit".pluralize(commits), value: commits },
-      { title: "Deploy".pluralize(deploys), value: deploys }
-    ]
-
-    cycle_analytics_hash = { summary: summary,
-                             stats: stats,
-                             permissions: @cycle_analytics.permissions(user: current_user)
+  def cycle_analytics_json
+    {
+      summary: @cycle_analytics.summary,
+      stats: @cycle_analytics.stats,
+      permissions: @cycle_analytics.permissions(user: current_user)
     }
-
-    [stats_values, cycle_analytics_hash]
   end
 end
diff --git a/app/controllers/projects/merge_requests_controller.rb b/app/controllers/projects/merge_requests_controller.rb
index aaebd4efa00..9ac5bf4b9f8 100644
--- a/app/controllers/projects/merge_requests_controller.rb
+++ b/app/controllers/projects/merge_requests_controller.rb
@@ -347,6 +347,16 @@ class Projects::MergeRequestsController < Projects::ApplicationController
     end
   end
 
+  def merge_widget_refresh
+    if merge_request.in_progress_merge_commit_sha || merge_request.state == 'merged'
+      @status = :success
+    elsif merge_request.merge_when_build_succeeds
+      @status = :merge_when_build_succeeds
+    end
+
+    render 'merge'
+  end
+
   def branch_from
     # This is always source
     @source_project = @merge_request.nil? ? @project : @merge_request.source_project
diff --git a/app/controllers/projects/notes_controller.rb b/app/controllers/projects/notes_controller.rb
index b71509f2c9b..c5d93ce25bc 100644
--- a/app/controllers/projects/notes_controller.rb
+++ b/app/controllers/projects/notes_controller.rb
@@ -23,7 +23,8 @@ class Projects::NotesController < Projects::ApplicationController
   end
 
   def create
-    @note = Notes::CreateService.new(project, current_user, note_params).execute
+    create_params = note_params.merge(merge_request_diff_head_sha: params[:merge_request_diff_head_sha])
+    @note = Notes::CreateService.new(project, current_user, create_params).execute
 
     if @note.is_a?(Note)
       Banzai::NoteRenderer.render([@note], @project, current_user)
diff --git a/app/helpers/diff_helper.rb b/app/helpers/diff_helper.rb
index c35d6611ab0..aed1d7c839f 100644
--- a/app/helpers/diff_helper.rb
+++ b/app/helpers/diff_helper.rb
@@ -165,4 +165,10 @@ module DiffHelper
 
     link_to "#{hide_whitespace? ? 'Show' : 'Hide'} whitespace changes", url, class: options[:class]
   end
+
+  def render_overflow_warning?(diff_files)
+    diffs = @merge_request_diff.presence || diff_files
+
+    diffs.overflow?
+  end
 end
diff --git a/app/helpers/issuables_helper.rb b/app/helpers/issuables_helper.rb
index 1c213983a5b..e5bb8b93e76 100644
--- a/app/helpers/issuables_helper.rb
+++ b/app/helpers/issuables_helper.rb
@@ -30,6 +30,15 @@ module IssuablesHelper
     end
   end
 
+  def serialize_issuable(issuable)
+    case issuable
+    when Issue
+      IssueSerializer.new.represent(issuable).to_json
+    when MergeRequest
+      MergeRequestSerializer.new.represent(issuable).to_json
+    end
+  end
+
   def template_dropdown_tag(issuable, &block)
     title = selected_template(issuable) || "Choose a template"
     options = {
diff --git a/app/helpers/merge_requests_helper.rb b/app/helpers/merge_requests_helper.rb
index 20218775659..8c2c4e8833b 100644
--- a/app/helpers/merge_requests_helper.rb
+++ b/app/helpers/merge_requests_helper.rb
@@ -19,6 +19,14 @@ module MergeRequestsHelper
     }
   end
 
+  def mr_widget_refresh_url(mr)
+    if mr && mr.source_project
+      merge_widget_refresh_namespace_project_merge_request_url(mr.source_project.namespace, mr.source_project, mr)
+    else
+      ''
+    end
+  end
+
   def mr_css_classes(mr)
     classes = "merge-request"
     classes << " closed" if mr.closed?
diff --git a/app/models/ci/build.rb b/app/models/ci/build.rb
index 27042798741..48ffe40abc6 100644
--- a/app/models/ci/build.rb
+++ b/app/models/ci/build.rb
@@ -507,6 +507,10 @@ module Ci
         end
     end
 
+    def has_expiring_artifacts?
+      artifacts_expire_at.present?
+    end
+
     def keep_artifacts!
       self.update(artifacts_expire_at: nil)
     end
diff --git a/app/models/commit.rb b/app/models/commit.rb
index 0b924b063a4..3365f4ffdbf 100644
--- a/app/models/commit.rb
+++ b/app/models/commit.rb
@@ -318,6 +318,14 @@ class Commit
     Gitlab::Diff::FileCollection::Commit.new(self, diff_options: diff_options)
   end
 
+  def persisted?
+    true
+  end
+
+  def touch
+    # no-op but needs to be defined since #persisted? is defined
+  end
+
   private
 
   def commit_reference(from_project, referable_commit_id, full: false)
diff --git a/app/models/concerns/issuable.rb b/app/models/concerns/issuable.rb
index 5e63825bf99..3517969eabc 100644
--- a/app/models/concerns/issuable.rb
+++ b/app/models/concerns/issuable.rb
@@ -13,6 +13,7 @@ module Issuable
   include StripAttribute
   include Awardable
   include Taskable
+  include TimeTrackable
 
   included do
     cache_markdown_field :title, pipeline: :single_line
diff --git a/app/models/concerns/milestoneish.rb b/app/models/concerns/milestoneish.rb
index fcc8feddb39..e9450dd0c26 100644
--- a/app/models/concerns/milestoneish.rb
+++ b/app/models/concerns/milestoneish.rb
@@ -7,11 +7,14 @@ module Milestoneish
 
   def total_items_count(user)
     memoize_per_user(user, :total_items_count) do
-      issues_count = count_issues_by_state(user).values.sum
-      issues_count + merge_requests.size
+      total_issues_count(user) + merge_requests.size
     end
   end
 
+  def total_issues_count(user)
+    count_issues_by_state(user).values.sum
+  end
+
   def complete?(user)
     total_items_count(user) > 0 && total_items_count(user) == closed_items_count(user)
   end
diff --git a/app/models/concerns/time_trackable.rb b/app/models/concerns/time_trackable.rb
new file mode 100644
index 00000000000..040e3a2884e
--- /dev/null
+++ b/app/models/concerns/time_trackable.rb
@@ -0,0 +1,72 @@
+# == TimeTrackable concern
+#
+# Contains functionality related to objects that support time tracking.
+#
+# Used by Issue and MergeRequest.
+#
+
+module TimeTrackable
+  extend ActiveSupport::Concern
+
+  included do
+    attr_reader :time_spent, :time_spent_user
+
+    alias_method :time_spent?, :time_spent
+
+    default_value_for :time_estimate, value: 0, allows_nil: false
+
+    validates :time_estimate, numericality: { message: 'has an invalid format' }, allow_nil: false
+    validate  :check_negative_time_spent
+
+    has_many :timelogs, as: :trackable, dependent: :destroy
+  end
+
+  def spend_time(options)
+    @time_spent = options[:duration]
+    @time_spent_user = options[:user]
+    @original_total_time_spent = nil
+
+    return if @time_spent == 0
+
+    if @time_spent == :reset
+      reset_spent_time
+    else
+      add_or_subtract_spent_time
+    end
+  end
+  alias_method :spend_time=, :spend_time
+
+  def total_time_spent
+    timelogs.sum(:time_spent)
+  end
+
+  def human_total_time_spent
+    Gitlab::TimeTrackingFormatter.output(total_time_spent)
+  end
+
+  def human_time_estimate
+    Gitlab::TimeTrackingFormatter.output(time_estimate)
+  end
+
+  private
+
+  def reset_spent_time
+    timelogs.new(time_spent: total_time_spent * -1, user: @time_spent_user)
+  end
+
+  def add_or_subtract_spent_time
+    timelogs.new(time_spent: time_spent, user: @time_spent_user)
+  end
+
+  def check_negative_time_spent
+    return if time_spent.nil? || time_spent == :reset
+
+    # we need to cache the total time spent so multiple calls to #valid?
+    # doesn't give a false error
+    @original_total_time_spent ||= total_time_spent
+
+    if time_spent < 0 && (time_spent.abs > @original_total_time_spent)
+      errors.add(:time_spent, 'Time to subtract exceeds the total time spent')
+    end
+  end
+end
diff --git a/app/models/cycle_analytics.rb b/app/models/cycle_analytics.rb
index ba4ee6fcf9d..d2e626c22e8 100644
--- a/app/models/cycle_analytics.rb
+++ b/app/models/cycle_analytics.rb
@@ -1,62 +1,38 @@
 class CycleAnalytics
   STAGES = %i[issue plan code test review staging production].freeze
 
-  def initialize(project, current_user, from:)
+  def initialize(project, options)
     @project = project
-    @current_user = current_user
-    @from = from
-    @fetcher = Gitlab::CycleAnalytics::MetricsFetcher.new(project: project, from: from, branch: nil)
+    @options = options
   end
 
   def summary
-    @summary ||= Summary.new(@project, @current_user, from: @from)
+    @summary ||= ::Gitlab::CycleAnalytics::StageSummary.new(@project,
+                                                            from: @options[:from],
+                                                            current_user: @options[:current_user]).data
   end
 
-  def permissions(user:)
-    Gitlab::CycleAnalytics::Permissions.get(user: user, project: @project)
+  def stats
+    @stats ||= stats_per_stage
   end
 
-  def issue
-    @fetcher.calculate_metric(:issue,
-                     Issue.arel_table[:created_at],
-                     [Issue::Metrics.arel_table[:first_associated_with_milestone_at],
-                      Issue::Metrics.arel_table[:first_added_to_board_at]])
+  def no_stats?
+    stats.all? { |hash| hash[:value].nil? }
   end
 
-  def plan
-    @fetcher.calculate_metric(:plan,
-                     [Issue::Metrics.arel_table[:first_associated_with_milestone_at],
-                      Issue::Metrics.arel_table[:first_added_to_board_at]],
-                     Issue::Metrics.arel_table[:first_mentioned_in_commit_at])
-  end
-
-  def code
-    @fetcher.calculate_metric(:code,
-                     Issue::Metrics.arel_table[:first_mentioned_in_commit_at],
-                     MergeRequest.arel_table[:created_at])
-  end
-
-  def test
-    @fetcher.calculate_metric(:test,
-                     MergeRequest::Metrics.arel_table[:latest_build_started_at],
-                     MergeRequest::Metrics.arel_table[:latest_build_finished_at])
+  def permissions(user:)
+    Gitlab::CycleAnalytics::Permissions.get(user: user, project: @project)
   end
 
-  def review
-    @fetcher.calculate_metric(:review,
-                     MergeRequest.arel_table[:created_at],
-                     MergeRequest::Metrics.arel_table[:merged_at])
+  def [](stage_name)
+    Gitlab::CycleAnalytics::Stage[stage_name].new(project: @project, options: @options)
   end
 
-  def staging
-    @fetcher.calculate_metric(:staging,
-                     MergeRequest::Metrics.arel_table[:merged_at],
-                     MergeRequest::Metrics.arel_table[:first_deployed_to_production_at])
-  end
+  private
 
-  def production
-    @fetcher.calculate_metric(:production,
-                     Issue.arel_table[:created_at],
-                     MergeRequest::Metrics.arel_table[:first_deployed_to_production_at])
+  def stats_per_stage
+    STAGES.map do |stage_name|
+      self[stage_name].as_json
+    end
   end
 end
diff --git a/app/models/cycle_analytics/summary.rb b/app/models/cycle_analytics/summary.rb
index c9910d8cd09..e69de29bb2d 100644
--- a/app/models/cycle_analytics/summary.rb
+++ b/app/models/cycle_analytics/summary.rb
@@ -1,43 +0,0 @@
-class CycleAnalytics
-  class Summary
-    def initialize(project, current_user, from:)
-      @project = project
-      @current_user = current_user
-      @from = from
-    end
-
-    def new_issues
-      IssuesFinder.new(@current_user, project_id: @project.id).execute.created_after(@from).count
-    end
-
-    def commits
-      ref = @project.default_branch.presence
-      count_commits_for(ref)
-    end
-
-    def deploys
-      @project.deployments.where("created_at > ?", @from).count
-    end
-
-    private
-
-    # Don't use the `Gitlab::Git::Repository#log` method, because it enforces
-    # a limit. Since we need a commit count, we _can't_ enforce a limit, so
-    # the easiest way forward is to replicate the relevant portions of the
-    # `log` function here.
-    def count_commits_for(ref)
-      return unless ref
-
-      repository = @project.repository.raw_repository
-      sha = @project.repository.commit(ref).sha
-
-      cmd = %W(#{Gitlab.config.git.bin_path} --git-dir=#{repository.path} log)
-      cmd << '--format=%H'
-      cmd << "--after=#{@from.iso8601}"
-      cmd << sha
-
-      raw_output = IO.popen(cmd) { |io| io.read }
-      raw_output.lines.count
-    end
-  end
-end
diff --git a/app/models/merge_request.rb b/app/models/merge_request.rb
index 70005a87f4b..10251302db8 100644
--- a/app/models/merge_request.rb
+++ b/app/models/merge_request.rb
@@ -898,10 +898,22 @@ class MergeRequest < ActiveRecord::Base
   end
 
   def has_commits?
-    commits_count > 0
+    merge_request_diff && commits_count > 0
   end
 
   def has_no_commits?
     !has_commits?
   end
+
+  def mergeable_with_slash_command?(current_user, autocomplete_precheck: false, last_diff_sha: nil)
+    return false unless can_be_merged_by?(current_user)
+
+    return true if autocomplete_precheck
+
+    return false unless mergeable?(skip_ci_check: true)
+    return false if head_pipeline && !(head_pipeline.success? || head_pipeline.active?)
+    return false if last_diff_sha != diff_head_sha
+
+    true
+  end
 end
diff --git a/app/models/merge_request_diff.rb b/app/models/merge_request_diff.rb
index 64dd586c9e0..dadb81f9b6e 100644
--- a/app/models/merge_request_diff.rb
+++ b/app/models/merge_request_diff.rb
@@ -234,28 +234,28 @@ class MergeRequestDiff < ActiveRecord::Base
   # and save it as array of hashes in st_diffs db field
   def save_diffs
     new_attributes = {}
-    new_diffs = []
 
     if commits.size.zero?
       new_attributes[:state] = :empty
     else
       diff_collection = compare.diffs(Commit.max_diff_options)
-
-      if diff_collection.overflow?
-        # Set our state to 'overflow' to make the #empty? and #collected?
-        # methods (generated by StateMachine) return false.
-        new_attributes[:state] = :overflow
-      end
-
-      new_attributes[:real_size] = diff_collection.real_size
+      new_attributes[:real_size] = compare.diffs.real_size
 
       if diff_collection.any?
         new_diffs = dump_diffs(diff_collection)
         new_attributes[:state] = :collected
       end
+
+      new_attributes[:st_diffs] = new_diffs || []
+
+      # Set our state to 'overflow' to make the #empty? and #collected?
+      # methods (generated by StateMachine) return false.
+      #
+      # This attribution has to come at the end of the method so 'overflow'
+      # state does not get overridden by 'collected'.
+      new_attributes[:state] = :overflow if diff_collection.overflow?
     end
 
-    new_attributes[:st_diffs] = new_diffs
     update_columns_serialized(new_attributes)
   end
 
diff --git a/app/models/project_statistics.rb b/app/models/project_statistics.rb
index 2270ac75071..06abd406523 100644
--- a/app/models/project_statistics.rb
+++ b/app/models/project_statistics.rb
@@ -25,8 +25,9 @@ class ProjectStatistics < ActiveRecord::Base
     self.commit_count = project.repository.commit_count
   end
 
+  # Repository#size needs to be converted from MB to Byte.
   def update_repository_size
-    self.repository_size = project.repository.size
+    self.repository_size = project.repository.size * 1.megabyte
   end
 
   def update_lfs_objects_size
diff --git a/app/models/timelog.rb b/app/models/timelog.rb
new file mode 100644
index 00000000000..f768c4e3da5
--- /dev/null
+++ b/app/models/timelog.rb
@@ -0,0 +1,6 @@
+class Timelog < ActiveRecord::Base
+  validates :time_spent, :user, presence: true
+
+  belongs_to :trackable, polymorphic: true
+  belongs_to :user
+end
diff --git a/app/serializers/analytics_stage_entity.rb b/app/serializers/analytics_stage_entity.rb
new file mode 100644
index 00000000000..a559d0850c4
--- /dev/null
+++ b/app/serializers/analytics_stage_entity.rb
@@ -0,0 +1,10 @@
+class AnalyticsStageEntity < Grape::Entity
+  include EntityDateHelper
+
+  expose :title
+  expose :description
+
+  expose :median, as: :value do |stage|
+    stage.median && !stage.median.zero? ? distance_of_time_in_words(stage.median) : nil
+  end
+end
diff --git a/app/serializers/analytics_stage_serializer.rb b/app/serializers/analytics_stage_serializer.rb
new file mode 100644
index 00000000000..613cf6874d8
--- /dev/null
+++ b/app/serializers/analytics_stage_serializer.rb
@@ -0,0 +1,3 @@
+class AnalyticsStageSerializer < BaseSerializer
+  entity AnalyticsStageEntity
+end
diff --git a/app/serializers/analytics_summary_entity.rb b/app/serializers/analytics_summary_entity.rb
new file mode 100644
index 00000000000..91803ec07f5
--- /dev/null
+++ b/app/serializers/analytics_summary_entity.rb
@@ -0,0 +1,7 @@
+class AnalyticsSummaryEntity < Grape::Entity
+  expose :value, safe: true
+
+  expose :title do |object|
+    object.title.pluralize(object.value)
+  end
+end
diff --git a/app/serializers/analytics_summary_serializer.rb b/app/serializers/analytics_summary_serializer.rb
new file mode 100644
index 00000000000..c87a24aa47c
--- /dev/null
+++ b/app/serializers/analytics_summary_serializer.rb
@@ -0,0 +1,3 @@
+class AnalyticsSummarySerializer < BaseSerializer
+  entity AnalyticsSummaryEntity
+end
diff --git a/app/serializers/issuable_entity.rb b/app/serializers/issuable_entity.rb
index 17c9160cb19..29aecb50849 100644
--- a/app/serializers/issuable_entity.rb
+++ b/app/serializers/issuable_entity.rb
@@ -13,4 +13,8 @@ class IssuableEntity < Grape::Entity
   expose :created_at
   expose :updated_at
   expose :deleted_at
+  expose :time_estimate
+  expose :total_time_spent
+  expose :human_time_estimate
+  expose :human_total_time_spent
 end
diff --git a/app/services/issuable_base_service.rb b/app/services/issuable_base_service.rb
index 4ce5fd993d9..5f3ced49665 100644
--- a/app/services/issuable_base_service.rb
+++ b/app/services/issuable_base_service.rb
@@ -36,6 +36,14 @@ class IssuableBaseService < BaseService
     end
   end
 
+  def create_time_estimate_note(issuable)
+    SystemNoteService.change_time_estimate(issuable, issuable.project, current_user)
+  end
+
+  def create_time_spent_note(issuable)
+    SystemNoteService.change_time_spent(issuable, issuable.project, current_user)
+  end
+
   def filter_params(issuable)
     ability_name = :"admin_#{issuable.to_ability_name}"
 
@@ -272,6 +280,14 @@ class IssuableBaseService < BaseService
       create_task_status_note(issuable)
     end
 
+    if issuable.previous_changes.include?('time_estimate')
+      create_time_estimate_note(issuable)
+    end
+
+    if issuable.time_spent?
+      create_time_spent_note(issuable)
+    end
+
     create_labels_note(issuable, old_labels) if issuable.labels != old_labels
   end
 end
diff --git a/app/services/merge_requests/update_service.rb b/app/services/merge_requests/update_service.rb
index ad16ef8c70f..3cb9aae83f6 100644
--- a/app/services/merge_requests/update_service.rb
+++ b/app/services/merge_requests/update_service.rb
@@ -7,6 +7,8 @@ module MergeRequests
       params.except!(:target_project_id)
       params.except!(:source_branch)
 
+      merge_from_slash_command(merge_request) if params[:merge]
+
       if merge_request.closed_without_fork?
         params.except!(:target_branch, :force_remove_source_branch)
       end
@@ -69,6 +71,19 @@ module MergeRequests
       end
     end
 
+    def merge_from_slash_command(merge_request)
+      last_diff_sha = params.delete(:merge)
+      return unless merge_request.mergeable_with_slash_command?(current_user, last_diff_sha: last_diff_sha)
+
+      merge_request.update(merge_error: nil)
+
+      if merge_request.head_pipeline && merge_request.head_pipeline.active?
+        MergeRequests::MergeWhenPipelineSucceedsService.new(project, current_user).execute(merge_request)
+      else
+        MergeWorker.perform_async(merge_request.id, current_user.id, {})
+      end
+    end
+
     def reopen_service
       MergeRequests::ReopenService
     end
diff --git a/app/services/notes/create_service.rb b/app/services/notes/create_service.rb
index 1beca9f4109..cdd765c85eb 100644
--- a/app/services/notes/create_service.rb
+++ b/app/services/notes/create_service.rb
@@ -1,6 +1,8 @@
 module Notes
   class CreateService < BaseService
     def execute
+      merge_request_diff_head_sha = params.delete(:merge_request_diff_head_sha)
+
       note = project.notes.new(params)
       note.author = current_user
       note.system = false
@@ -19,7 +21,8 @@ module Notes
       slash_commands_service = SlashCommandsService.new(project, current_user)
 
       if slash_commands_service.supported?(note)
-        content, command_params = slash_commands_service.extract_commands(note)
+        options = { merge_request_diff_head_sha: merge_request_diff_head_sha }
+        content, command_params = slash_commands_service.extract_commands(note, options)
 
         only_commands = content.empty?
 
diff --git a/app/services/notes/slash_commands_service.rb b/app/services/notes/slash_commands_service.rb
index 2edbd39a9e7..aaea9717fc4 100644
--- a/app/services/notes/slash_commands_service.rb
+++ b/app/services/notes/slash_commands_service.rb
@@ -19,10 +19,10 @@ module Notes
       self.class.supported?(note, current_user)
     end
 
-    def extract_commands(note)
+    def extract_commands(note, options = {})
       return [note.note, {}] unless supported?(note)
 
-      SlashCommands::InterpretService.new(project, current_user).
+      SlashCommands::InterpretService.new(project, current_user, options).
         execute(note.note, note.noteable)
     end
 
diff --git a/app/services/slash_commands/interpret_service.rb b/app/services/slash_commands/interpret_service.rb
index d75c5b1800e..3566a8ba92f 100644
--- a/app/services/slash_commands/interpret_service.rb
+++ b/app/services/slash_commands/interpret_service.rb
@@ -2,7 +2,7 @@ module SlashCommands
   class InterpretService < BaseService
     include Gitlab::SlashCommands::Dsl
 
-    attr_reader :issuable
+    attr_reader :issuable, :options
 
     # Takes a text and interprets the commands that are extracted from it.
     # Returns the content without commands, and hash of changes to be applied to a record.
@@ -13,7 +13,8 @@ module SlashCommands
       opts = {
         issuable:     issuable,
         current_user: current_user,
-        project:      project
+        project:      project,
+        params:       params
       }
 
       content, commands = extractor.extract_commands(content, opts)
@@ -58,6 +59,17 @@ module SlashCommands
       @updates[:state_event] = 'reopen'
     end
 
+    desc 'Merge (when build succeeds)'
+    condition do
+      last_diff_sha = params && params[:merge_request_diff_head_sha]
+      issuable.is_a?(MergeRequest) &&
+        issuable.persisted? &&
+        issuable.mergeable_with_slash_command?(current_user, autocomplete_precheck: !last_diff_sha, last_diff_sha: last_diff_sha)
+    end
+    command :merge do
+      @updates[:merge] = params[:merge_request_diff_head_sha]
+    end
+
     desc 'Change title'
     params '<New title>'
     condition do
@@ -243,6 +255,50 @@ module SlashCommands
       @updates[:wip_event] = issuable.work_in_progress? ? 'unwip' : 'wip'
     end
 
+    desc 'Set time estimate'
+    params '<1w 3d 2h 14m>'
+    condition do
+      current_user.can?(:"admin_#{issuable.to_ability_name}", project)
+    end
+    command :estimate do |raw_duration|
+      time_estimate = Gitlab::TimeTrackingFormatter.parse(raw_duration)
+
+      if time_estimate
+        @updates[:time_estimate] = time_estimate
+      end
+    end
+
+    desc 'Add or substract spent time'
+    params '<1h 30m | -1h 30m>'
+    condition do
+      current_user.can?(:"admin_#{issuable.to_ability_name}", issuable)
+    end
+    command :spend do |raw_duration|
+      time_spent = Gitlab::TimeTrackingFormatter.parse(raw_duration)
+
+      if time_spent
+        @updates[:spend_time] = { duration: time_spent, user: current_user }
+      end
+    end
+
+    desc 'Remove time estimate'
+    condition do
+      issuable.persisted? &&
+        current_user.can?(:"admin_#{issuable.to_ability_name}", project)
+    end
+    command :remove_estimate do
+      @updates[:time_estimate] = 0
+    end
+
+    desc 'Remove spent time'
+    condition do
+      issuable.persisted? &&
+        current_user.can?(:"admin_#{issuable.to_ability_name}", project)
+    end
+    command :remove_time_spent do
+      @updates[:spend_time] = { duration: :reset, user: current_user }
+    end
+
     # This is a dummy command, so that it appears in the autocomplete commands
     desc 'CC'
     params '@user'
diff --git a/app/services/system_note_service.rb b/app/services/system_note_service.rb
index 7613ecd5021..5ca2551ee61 100644
--- a/app/services/system_note_service.rb
+++ b/app/services/system_note_service.rb
@@ -109,6 +109,57 @@ module SystemNoteService
     create_note(noteable: noteable, project: project, author: author, note: body)
   end
 
+  # Called when the estimated time of a Noteable is changed
+  #
+  # noteable      - Noteable object
+  # project       - Project owning noteable
+  # author        - User performing the change
+  # time_estimate - Estimated time
+  #
+  # Example Note text:
+  #
+  #   "Changed estimate of this issue to 3d 5h"
+  #
+  # Returns the created Note object
+
+  def change_time_estimate(noteable, project, author)
+    parsed_time = Gitlab::TimeTrackingFormatter.output(noteable.time_estimate)
+    body = if noteable.time_estimate == 0
+             "Removed time estimate on this #{noteable.human_class_name}"
+           else
+             "Changed time estimate of this #{noteable.human_class_name} to #{parsed_time}"
+           end
+
+    create_note(noteable: noteable, project: project, author: author, note: body)
+  end
+
+  # Called when the spent time of a Noteable is changed
+  #
+  # noteable   - Noteable object
+  # project    - Project owning noteable
+  # author     - User performing the change
+  # time_spent - Spent time
+  #
+  # Example Note text:
+  #
+  #   "Added 2h 30m of time spent on this issue"
+  #
+  # Returns the created Note object
+
+  def change_time_spent(noteable, project, author)
+    time_spent = noteable.time_spent
+
+    if time_spent == :reset
+      body = "Removed time spent on this #{noteable.human_class_name}"
+    else
+      parsed_time = Gitlab::TimeTrackingFormatter.output(time_spent.abs)
+      action = time_spent > 0 ? 'Added' : 'Subtracted'
+      body = "#{action} #{parsed_time} of time spent on this #{noteable.human_class_name}"
+    end
+
+    create_note(noteable: noteable, project: project, author: author, note: body)
+  end
+
   # Called when the status of a Noteable is changed
   #
   # noteable - Noteable object
diff --git a/app/views/projects/builds/_sidebar.html.haml b/app/views/projects/builds/_sidebar.html.haml
index 0b3adcbe121..37bf085130a 100644
--- a/app/views/projects/builds/_sidebar.html.haml
+++ b/app/views/projects/builds/_sidebar.html.haml
@@ -22,14 +22,14 @@
           %p.build-detail-row
             The artifacts were removed
             #{time_ago_with_tooltip(@build.artifacts_expire_at)}
-        - elsif @build.artifacts_expire_at
+        - elsif @build.has_expiring_artifacts?
           %p.build-detail-row
             The artifacts will be removed in
             %span.js-artifacts-remove= @build.artifacts_expire_at
 
         - if @build.artifacts?
           .btn-group.btn-group-justified{ role: :group }
-            - if @build.artifacts_expire_at
+            - if @build.has_expiring_artifacts? && can?(current_user, :update_build, @build)
               = link_to keep_namespace_project_build_artifacts_path(@project.namespace, @project, @build), class: 'btn btn-sm btn-default', method: :post do
                 Keep
 
diff --git a/app/views/projects/commit/_change.html.haml b/app/views/projects/commit/_change.html.haml
index 12e4280d344..990908211de 100644
--- a/app/views/projects/commit/_change.html.haml
+++ b/app/views/projects/commit/_change.html.haml
@@ -13,7 +13,7 @@
         %a.close{ href: "#", "data-dismiss" => "modal" } ×
         %h3.page-title== #{label} this #{commit.change_type_title(current_user)}
       .modal-body
-        = form_tag send("#{type.underscore}_namespace_project_commit_path", @project.namespace, @project, commit.id), method: :post, remote: false, class: "form-horizontal js-#{type}-form js-requires-input" do
+        = form_tag [type.underscore, @project.namespace, @project, commit], method: :post, remote: false, class: "form-horizontal js-#{type}-form js-requires-input" do
           .form-group.branch
             = label_tag 'target_branch', target_label, class: 'control-label'
             .col-sm-10
diff --git a/app/views/projects/commit/_commit_box.html.haml b/app/views/projects/commit/_commit_box.html.haml
index a9ee9230076..08eb0c57f66 100644
--- a/app/views/projects/commit/_commit_box.html.haml
+++ b/app/views/projects/commit/_commit_box.html.haml
@@ -1,7 +1,7 @@
 .page-content-header
   .header-main-content
     %strong
-    = clipboard_button(clipboard_text: @commit.id)
+    = clipboard_button(clipboard_text: @commit.id, title: "Copy commit SHA to clipboard")
     = @commit.short_id
     %span.hidden-xs authored
     #{time_ago_with_tooltip(@commit.authored_date)}
diff --git a/app/views/projects/commits/_commit.html.haml b/app/views/projects/commits/_commit.html.haml
index 3c6c50dce3c..002e3d345dc 100644
--- a/app/views/projects/commits/_commit.html.haml
+++ b/app/views/projects/commits/_commit.html.haml
@@ -36,6 +36,6 @@
     .table-list-cell.commit-actions.hidden-xs
       - if commit.status(ref)
         = render_commit_status(commit, ref: ref)
-      = clipboard_button(clipboard_text: commit.id)
+      = clipboard_button(clipboard_text: commit.id, title: "Copy commit SHA to clipboard")
       = link_to commit.short_id, namespace_project_commit_path(project.namespace, project, commit), class: "commit-short-id btn btn-transparent"
       = link_to_browse_code(project, commit)
diff --git a/app/views/projects/diffs/_diffs.html.haml b/app/views/projects/diffs/_diffs.html.haml
index ab4a2dc36e5..58c20e225c6 100644
--- a/app/views/projects/diffs/_diffs.html.haml
+++ b/app/views/projects/diffs/_diffs.html.haml
@@ -18,8 +18,8 @@
       = parallel_diff_btn
   = render 'projects/diffs/stats', diff_files: diff_files
 
-- if diff_files.overflow?
-  = render 'projects/diffs/warning', diff_files: diff_files
+- if render_overflow_warning?(diff_files)
+  = render 'projects/diffs/warning', diff_files: diffs
 
 .files{ data: { can_create_note: can_create_note } }
   - diff_files.each_with_index do |diff_file|
diff --git a/app/views/projects/issues/show.html.haml b/app/views/projects/issues/show.html.haml
index 43141971231..048417e9b86 100644
--- a/app/views/projects/issues/show.html.haml
+++ b/app/views/projects/issues/show.html.haml
@@ -2,6 +2,8 @@
 - page_title           "#{@issue.title} (#{@issue.to_reference})", "Issues"
 - page_description     @issue.description
 - page_card_attributes @issue.card_attributes
+- content_for :page_specific_javascripts do
+  = page_specific_javascript_bundle_tag('lib_vue')
 
 .clearfix.detail-page-header
   .issuable-header
diff --git a/app/views/projects/merge_requests/_show.html.haml b/app/views/projects/merge_requests/_show.html.haml
index 134f3f09b36..9708cf500e0 100644
--- a/app/views/projects/merge_requests/_show.html.haml
+++ b/app/views/projects/merge_requests/_show.html.haml
@@ -3,6 +3,7 @@
 - page_description     @merge_request.description
 - page_card_attributes @merge_request.card_attributes
 - content_for :page_specific_javascripts do
+  = page_specific_javascript_bundle_tag('lib_vue')
   = page_specific_javascript_bundle_tag('diff_notes')
 
 .merge-request{ 'data-url' => merge_request_path(@merge_request) }
@@ -112,3 +113,5 @@
   merge_request = new MergeRequest({
     action: "#{controller.action_name}"
   });
+
+  var mrRefreshWidgetUrl = "#{mr_widget_refresh_url(@merge_request)}";
diff --git a/app/views/projects/merge_requests/conflicts.html.haml b/app/views/projects/merge_requests/conflicts.html.haml
index 9242a84f150..dcf578b85f9 100644
--- a/app/views/projects/merge_requests/conflicts.html.haml
+++ b/app/views/projects/merge_requests/conflicts.html.haml
@@ -1,5 +1,6 @@
 - page_title "Merge Conflicts", "#{@merge_request.title} (#{@merge_request.to_reference}", "Merge Requests"
 - content_for :page_specific_javascripts do
+  = page_specific_javascript_bundle_tag('lib_vue')
   = page_specific_javascript_bundle_tag('merge_conflicts')
   = page_specific_javascript_tag('lib/ace.js')
 = render "projects/merge_requests/show/mr_title"
diff --git a/app/views/projects/merge_requests/show/_diffs.html.haml b/app/views/projects/merge_requests/show/_diffs.html.haml
index 99c71e1454a..5f048d04b27 100644
--- a/app/views/projects/merge_requests/show/_diffs.html.haml
+++ b/app/views/projects/merge_requests/show/_diffs.html.haml
@@ -1,13 +1,5 @@
-- if @merge_request_diff.collected?
+- if @merge_request_diff.collected? || @merge_request_diff.overflow?
   = render 'projects/merge_requests/show/versions'
   = render "projects/diffs/diffs", diffs: @diffs
 - elsif @merge_request_diff.empty?
   .nothing-here-block Nothing to merge from #{@merge_request.source_branch} into #{@merge_request.target_branch}
-- else
-  .alert.alert-warning
-    %h4
-      Changes view for this comparison is extremely large.
-    %p
-      You can
-      = link_to "download it", merge_request_path(@merge_request, format: :diff), class: "vlink"
-      instead.
diff --git a/app/views/projects/notes/_form.html.haml b/app/views/projects/notes/_form.html.haml
index 39731668a61..b561052e721 100644
--- a/app/views/projects/notes/_form.html.haml
+++ b/app/views/projects/notes/_form.html.haml
@@ -3,6 +3,7 @@
 = form_for [@project.namespace.becomes(Namespace), @project, @note], remote: true, html: { :'data-type' => 'json', multipart: true, id: nil, class: "new-note js-new-note-form js-quick-submit common-note-form", "data-noteable-iid" => @note.noteable.try(:iid), }, authenticity_token: true do |f|
   = hidden_field_tag :view, diff_view
   = hidden_field_tag :line_type
+  = hidden_field_tag :merge_request_diff_head_sha, @note.noteable.try(:diff_head_sha)
   = note_target_fields(@note)
   = f.hidden_field :commit_id
   = f.hidden_field :line_code
diff --git a/app/views/projects/tree/_tree_content.html.haml b/app/views/projects/tree/_tree_content.html.haml
index 038a960bd0c..2c08221565b 100644
--- a/app/views/projects/tree/_tree_content.html.haml
+++ b/app/views/projects/tree/_tree_content.html.haml
@@ -8,7 +8,7 @@
             .pull-left Last commit
             .last-commit.hidden-sm.pull-left
               %small.light
-                = clipboard_button(clipboard_text: @commit.id)
+                = clipboard_button(clipboard_text: @commit.id, title: "Copy commit SHA to clipboard")
                 = link_to @commit.short_id, namespace_project_commit_path(@project.namespace, @project, @commit), class: "monospace"
                 = time_ago_with_tooltip(@commit.committed_date)
                 = @commit.full_title
diff --git a/app/views/shared/icons/_icon_stopwatch.svg b/app/views/shared/icons/_icon_stopwatch.svg
new file mode 100644
index 00000000000..f20de04538e
--- /dev/null
+++ b/app/views/shared/icons/_icon_stopwatch.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 12 14" enable-background="new 0 0 12 14"><path d="m11.5 2.4l-1.3-1.1-1 1.1 1.4 1.1.9-1.1"/><path d="m6.8 2v-.5h.5v-1.5h-2.6v1.5h.5v.5c-2.9.4-5.2 2.9-5.2 6 0 3.3 2.7 6 6 6s6-2.7 6-6c0-3-2.3-5.6-5.2-6m-.8 10.5c-2.5 0-4.5-2-4.5-4.5s2-4.5 4.5-4.5 4.5 2 4.5 4.5-2 4.5-4.5 4.5"/><path d="m6.2 8.9h-.5c-.1 0-.2-.1-.2-.2v-3.5c0-.1.1-.2.2-.2h.5c.1 0 .2.1.2.2v3.5c0 .1-.1.2-.2.2"/></svg>
\ No newline at end of file
diff --git a/app/views/shared/issuable/_sidebar.html.haml b/app/views/shared/issuable/_sidebar.html.haml
index a02b815e3cd..2eba52f8c2d 100644
--- a/app/views/shared/issuable/_sidebar.html.haml
+++ b/app/views/shared/issuable/_sidebar.html.haml
@@ -1,5 +1,8 @@
 - todo = issuable_todo(issuable)
-%aside.right-sidebar{ class: sidebar_gutter_collapsed_class }
+- content_for :page_specific_javascripts do
+  = page_specific_javascript_bundle_tag('issuable')
+
+%aside.right-sidebar{ class: sidebar_gutter_collapsed_class, 'aria-live' => 'polite' }
   .issuable-sidebar
     - can_edit_issuable = can?(current_user, :"admin_#{issuable.to_ability_name}", @project)
     .block.issuable-sidebar-header
@@ -72,7 +75,13 @@
         .selectbox.hide-collapsed
           = f.hidden_field 'milestone_id', value: issuable.milestone_id, id: nil
           = dropdown_tag('Milestone', options: { title: 'Assign milestone', toggle_class: 'js-milestone-select js-extra-options', filter: true, dropdown_class: 'dropdown-menu-selectable', placeholder: 'Search milestones', data: { show_no: true, field_name: "#{issuable.to_ability_name}[milestone_id]", project_id: @project.id, issuable_id: issuable.id, milestones: namespace_project_milestones_path(@project.namespace, @project, :json), ability_name: issuable.to_ability_name, issue_update: issuable_json_path(issuable), use_id: true }})
-
+      - if issuable.has_attribute?(:time_estimate)
+        #issuable-time-tracker.block
+          %issuable-time-tracker{ ':time_estimate' => 'issuable.time_estimate', ':time_spent' => 'issuable.total_time_spent', ':human_time_estimate' => 'issuable.human_time_estimate', ':human_time_spent' => 'issuable.human_total_time_spent', 'stopwatch-svg' => custom_icon('icon_stopwatch'), 'docs-url' => help_page_path('workflow/time_tracking.md') }
+            // Fallback while content is loading
+            .title.hide-collapsed
+              Time tracking
+              = icon('spinner spin')
       - if issuable.has_attribute?(:due_date)
         .block.due_date
           .sidebar-collapsed-icon
@@ -162,6 +171,8 @@
           = clipboard_button(clipboard_text: project_ref, title: "Copy reference to clipboard", placement: "left")
 
     :javascript
+      gl.IssuableResource = new gl.SubbableResource('#{issuable_json_path(issuable)}');
+      new gl.IssuableTimeTracking("#{escape_javascript(serialize_issuable(issuable))}");
       new MilestoneSelect('{"namespace":"#{@project.namespace.path}","path":"#{@project.path}"}');
       new LabelsSelect();
       new IssuableContext('#{escape_javascript(current_user.to_json(only: [:username, :id, :name]))}');
diff --git a/app/views/shared/milestones/_milestone.html.haml b/app/views/shared/milestones/_milestone.html.haml
index 3200aacf542..9e6a76e1ddb 100644
--- a/app/views/shared/milestones/_milestone.html.haml
+++ b/app/views/shared/milestones/_milestone.html.haml
@@ -9,7 +9,7 @@
       .pull-right.light #{milestone.percent_complete(current_user)}% complete
   .row
     .col-sm-6
-      = link_to pluralize(milestone.issues_visible_to_user(current_user).size, 'Issue'), issues_path
+      = link_to pluralize(milestone.total_issues_count(current_user), 'Issue'), issues_path
       &middot;
       = link_to pluralize(milestone.merge_requests.size, 'Merge Request'), merge_requests_path
     .col-sm-6= milestone_progress_bar(milestone)
diff --git a/changelogs/unreleased/24915_merge_slash_command.yml b/changelogs/unreleased/24915_merge_slash_command.yml
new file mode 100644
index 00000000000..eb8ced8ab01
--- /dev/null
+++ b/changelogs/unreleased/24915_merge_slash_command.yml
@@ -0,0 +1,4 @@
+---
+title: Support slash comand `/merge` for merging merge requests.
+merge_request: 7746
+author: Jarka Kadlecova
diff --git a/changelogs/unreleased/26667-pipeline-width-for-huge-pipeline.yml b/changelogs/unreleased/26667-pipeline-width-for-huge-pipeline.yml
new file mode 100644
index 00000000000..08dcc5c3e8c
--- /dev/null
+++ b/changelogs/unreleased/26667-pipeline-width-for-huge-pipeline.yml
@@ -0,0 +1,4 @@
+---
+title: Fixes big pipeline and small pipeline width problems and tooltips text being outside the tooltip
+merge_request: 8593
+author:
diff --git a/changelogs/unreleased/26773-fix-project-statistics-repository-size.yml b/changelogs/unreleased/26773-fix-project-statistics-repository-size.yml
new file mode 100644
index 00000000000..8ce9bbcb3a9
--- /dev/null
+++ b/changelogs/unreleased/26773-fix-project-statistics-repository-size.yml
@@ -0,0 +1,4 @@
+---
+title: Adjust ProjectStatistic#repository_size with values saved as MB
+merge_request: 8616
+author:
diff --git a/changelogs/unreleased/8623-correct-robots-txt.yml b/changelogs/unreleased/8623-correct-robots-txt.yml
new file mode 100644
index 00000000000..00ed80511cc
--- /dev/null
+++ b/changelogs/unreleased/8623-correct-robots-txt.yml
@@ -0,0 +1,4 @@
+---
+title: "Correct User-agent placement in robots.txt"
+merge_request: 8623
+author: Eric Sabelhaus
diff --git a/changelogs/unreleased/clipboard-button-commit-sha.yml b/changelogs/unreleased/clipboard-button-commit-sha.yml
new file mode 100644
index 00000000000..6aa4a5664e7
--- /dev/null
+++ b/changelogs/unreleased/clipboard-button-commit-sha.yml
@@ -0,0 +1,3 @@
+---
+title: 'Copy commit SHA to clipboard'
+merge_request: 8547
diff --git a/changelogs/unreleased/fix-keep-artifacts-button-visibility.yml b/changelogs/unreleased/fix-keep-artifacts-button-visibility.yml
new file mode 100644
index 00000000000..3d8cf1c74a2
--- /dev/null
+++ b/changelogs/unreleased/fix-keep-artifacts-button-visibility.yml
@@ -0,0 +1,4 @@
+---
+title: Hide build artifacts keep button if operation is not allowed
+merge_request: 8501
+author:
diff --git a/changelogs/unreleased/i--25814-500-error.yml b/changelogs/unreleased/i--25814-500-error.yml
new file mode 100644
index 00000000000..cd55ede84c8
--- /dev/null
+++ b/changelogs/unreleased/i--25814-500-error.yml
@@ -0,0 +1,4 @@
+---
+title: Fix Compare page throws 500 error when any branch/reference is not selected
+merge_request: 8492
+author: Martin Cabrera
diff --git a/changelogs/unreleased/issue_25017.yml b/changelogs/unreleased/issue_25017.yml
new file mode 100644
index 00000000000..09126ae81bc
--- /dev/null
+++ b/changelogs/unreleased/issue_25017.yml
@@ -0,0 +1,4 @@
+---
+title: Show 'too many changes' message for created merge requests when they are too large
+merge_request:
+author:
diff --git a/changelogs/unreleased/mr-tabs-alignment-sidebar-open.yml b/changelogs/unreleased/mr-tabs-alignment-sidebar-open.yml
new file mode 100644
index 00000000000..b8c7b78cf0d
--- /dev/null
+++ b/changelogs/unreleased/mr-tabs-alignment-sidebar-open.yml
@@ -0,0 +1,4 @@
+---
+title: Fixed merge request tabs dont move when opening collapsed sidebar
+merge_request:
+author:
diff --git a/changelogs/unreleased/reduce-queries-milestone-index.yml b/changelogs/unreleased/reduce-queries-milestone-index.yml
new file mode 100644
index 00000000000..a779b58c973
--- /dev/null
+++ b/changelogs/unreleased/reduce-queries-milestone-index.yml
@@ -0,0 +1,4 @@
+---
+title: Use cached values to compute total issues count in milestone index pages
+merge_request: 8518
+author:
diff --git a/changelogs/unreleased/time-tracking-api.yml b/changelogs/unreleased/time-tracking-api.yml
new file mode 100644
index 00000000000..b58d73bef81
--- /dev/null
+++ b/changelogs/unreleased/time-tracking-api.yml
@@ -0,0 +1,4 @@
+---
+title: Add new endpoints for Time Tracking.
+merge_request: 8483
+author:
diff --git a/config/routes/project.rb b/config/routes/project.rb
index 26e2dc9e6e7..1fc6ed28c74 100644
--- a/config/routes/project.rb
+++ b/config/routes/project.rb
@@ -94,6 +94,7 @@ constraints(ProjectUrlConstrainer.new) do
           get :pipelines
           get :merge_check
           post :merge
+          get :merge_widget_refresh
           post :cancel_merge_when_build_succeeds
           get :ci_status
           get :ci_environments_status
diff --git a/config/webpack.config.js b/config/webpack.config.js
index 98b87462a94..762147e8b06 100644
--- a/config/webpack.config.js
+++ b/config/webpack.config.js
@@ -24,6 +24,7 @@ var config = {
     environments:         './environments/environments_bundle.js',
     filtered_search:      './filtered_search/filtered_search_bundle.js',
     graphs:               './graphs/graphs_bundle.js',
+    issuable:             './issuable/issuable_bundle.js',
     merge_conflicts:      './merge_conflicts/merge_conflicts_bundle.js',
     merge_request_widget: './merge_request_widget/ci_bundle.js',
     network:              './network/network_bundle.js',
@@ -34,6 +35,7 @@ var config = {
     users:                './users/users_bundle.js',
     lib_chart:            './lib/chart.js',
     lib_d3:               './lib/d3.js',
+    lib_vue:              './lib/vue_resource.js',
     vue_pipelines:        './vue_pipelines_index/index.js',
   },
 
diff --git a/db/migrate/20161223034433_add_time_estimate_to_issuables.rb b/db/migrate/20161223034433_add_time_estimate_to_issuables.rb
new file mode 100644
index 00000000000..8d89756a9bc
--- /dev/null
+++ b/db/migrate/20161223034433_add_time_estimate_to_issuables.rb
@@ -0,0 +1,30 @@
+# See http://doc.gitlab.com/ce/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class AddTimeEstimateToIssuables < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  # Set this constant to true if this migration requires downtime.
+  DOWNTIME = false
+
+  # When a migration requires downtime you **must** uncomment the following
+  # constant and define a short and easy to understand explanation as to why the
+  # migration requires downtime.
+  # DOWNTIME_REASON = ''
+
+  # When using the methods "add_concurrent_index" or "add_column_with_default"
+  # you must disable the use of transactions as these methods can not run in an
+  # existing transaction. When using "add_concurrent_index" make sure that this
+  # method is the _only_ method called in the migration, any other changes
+  # should go in a separate migration. This ensures that upon failure _only_ the
+  # index creation fails and can be retried or reverted easily.
+  #
+  # To disable transactions uncomment the following line and remove these
+  # comments:
+  # disable_ddl_transaction!
+
+  def change
+    add_column :issues, :time_estimate, :integer
+    add_column :merge_requests, :time_estimate, :integer
+  end
+end
diff --git a/db/migrate/20161223034646_create_timelogs.rb b/db/migrate/20161223034646_create_timelogs.rb
new file mode 100644
index 00000000000..d3353a67eec
--- /dev/null
+++ b/db/migrate/20161223034646_create_timelogs.rb
@@ -0,0 +1,38 @@
+# See http://doc.gitlab.com/ce/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class CreateTimelogs < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  # Set this constant to true if this migration requires downtime.
+  DOWNTIME = false
+
+  # When a migration requires downtime you **must** uncomment the following
+  # constant and define a short and easy to understand explanation as to why the
+  # migration requires downtime.
+  # DOWNTIME_REASON = ''
+
+  # When using the methods "add_concurrent_index" or "add_column_with_default"
+  # you must disable the use of transactions as these methods can not run in an
+  # existing transaction. When using "add_concurrent_index" make sure that this
+  # method is the _only_ method called in the migration, any other changes
+  # should go in a separate migration. This ensures that upon failure _only_ the
+  # index creation fails and can be retried or reverted easily.
+  #
+  # To disable transactions uncomment the following line and remove these
+  # comments:
+  # disable_ddl_transaction!
+
+  def change
+    create_table :timelogs do |t|
+      t.integer :time_spent, null: false
+      t.references :trackable, polymorphic: true
+      t.references :user
+
+      t.timestamps null: false
+    end
+
+    add_index :timelogs, [:trackable_type, :trackable_id]
+    add_index :timelogs, :user_id
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index c58a886b0fa..7815392c1c3 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -506,6 +506,7 @@ ActiveRecord::Schema.define(version: 20170106172224) do
     t.integer "lock_version"
     t.text "title_html"
     t.text "description_html"
+    t.integer "time_estimate"
   end
 
   add_index "issues", ["assignee_id"], name: "index_issues_on_assignee_id", using: :btree
@@ -685,6 +686,7 @@ ActiveRecord::Schema.define(version: 20170106172224) do
     t.integer "lock_version"
     t.text "title_html"
     t.text "description_html"
+    t.integer "time_estimate"
   end
 
   add_index "merge_requests", ["assignee_id"], name: "index_merge_requests_on_assignee_id", using: :btree
@@ -1128,6 +1130,18 @@ ActiveRecord::Schema.define(version: 20170106172224) do
 
   add_index "tags", ["name"], name: "index_tags_on_name", unique: true, using: :btree
 
+  create_table "timelogs", force: :cascade do |t|
+    t.integer "time_spent", null: false
+    t.integer "trackable_id"
+    t.string "trackable_type"
+    t.integer "user_id"
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+  end
+
+  add_index "timelogs", ["trackable_type", "trackable_id"], name: "index_timelogs_on_trackable_type_and_trackable_id", using: :btree
+  add_index "timelogs", ["user_id"], name: "index_timelogs_on_user_id", using: :btree
+
   create_table "todos", force: :cascade do |t|
     t.integer "user_id", null: false
     t.integer "project_id", null: false
diff --git a/doc/api/issues.md b/doc/api/issues.md
index dd84afd7c73..b276d1ad918 100644
--- a/doc/api/issues.md
+++ b/doc/api/issues.md
@@ -712,6 +712,146 @@ Example response:
 }
 ```
 
+## Set a time estimate for an issue
+
+Sets an estimated time of work for this issue.
+
+```
+POST /projects/:id/issues/:issue_id/time_estimate
+```
+
+| Attribute | Type | Required | Description |
+| --------- | ---- | -------- | ----------- |
+| `id`      | integer | yes   | The ID of a project |
+| `issue_id` | integer | yes | The ID of a project's issue |
+| `duration` | string | yes | The duration in human format. e.g: 3h30m |
+
+```bash
+curl --request POST --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v3/projects/5/issues/93/time_estimate?duration=3h30m
+```
+
+Example response:
+
+```json
+{
+  "human_time_estimate": "3h 30m",
+  "human_total_time_spent": null,
+  "time_estimate": 12600,
+  "total_time_spent": 0
+}
+```
+
+## Reset the time estimate for an issue
+
+Resets the estimated time for this issue to 0 seconds.
+
+```
+POST /projects/:id/issues/:issue_id/reset_time_estimate
+```
+
+| Attribute | Type | Required | Description |
+| --------- | ---- | -------- | ----------- |
+| `id`      | integer | yes   | The ID of a project |
+| `issue_id` | integer | yes | The ID of a project's issue |
+
+```bash
+curl --request POST --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v3/projects/5/issues/93/reset_time_estimate
+```
+
+Example response:
+
+```json
+{
+  "human_time_estimate": null,
+  "human_total_time_spent": null,
+  "time_estimate": 0,
+  "total_time_spent": 0
+}
+```
+
+## Add spent time for an issue
+
+Adds spent time for this issue
+
+```
+POST /projects/:id/issues/:issue_id/add_spent_time
+```
+
+| Attribute | Type | Required | Description |
+| --------- | ---- | -------- | ----------- |
+| `id`      | integer | yes   | The ID of a project |
+| `issue_id` | integer | yes | The ID of a project's issue |
+| `duration` | string | yes | The duration in human format. e.g: 3h30m |
+
+```bash
+curl --request POST --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v3/projects/5/issues/93/add_spent_time?duration=1h
+```
+
+Example response:
+
+```json
+{
+  "human_time_estimate": null,
+  "human_total_time_spent": "1h",
+  "time_estimate": 0,
+  "total_time_spent": 3600
+}
+```
+
+## Reset spent time for an issue
+
+Resets the total spent time for this issue to 0 seconds.
+
+```
+POST /projects/:id/issues/:issue_id/reset_spent_time
+```
+
+| Attribute | Type | Required | Description |
+| --------- | ---- | -------- | ----------- |
+| `id`      | integer | yes   | The ID of a project |
+| `issue_id` | integer | yes | The ID of a project's issue |
+
+```bash
+curl --request POST --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v3/projects/5/issues/93/reset_spent_time
+```
+
+Example response:
+
+```json
+{
+  "human_time_estimate": null,
+  "human_total_time_spent": null,
+  "time_estimate": 0,
+  "total_time_spent": 0
+}
+```
+
+## Get time tracking stats
+
+```
+GET /projects/:id/issues/:issue_id/time_stats
+```
+
+| Attribute | Type | Required | Description |
+| --------- | ---- | -------- | ----------- |
+| `id`      | integer | yes   | The ID of a project |
+| `issue_id` | integer | yes | The ID of a project's issue |
+
+```bash
+curl --request GET --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v3/projects/5/issues/93/time_stats
+```
+
+Example response:
+
+```json
+{
+  "human_time_estimate": "2h",
+  "human_total_time_spent": "1h",
+  "time_estimate": 7200,
+  "total_time_spent": 3600
+}
+```
+
 ## Comments on issues
 
 Comments are done via the [notes](notes.md) resource.
diff --git a/doc/api/merge_requests.md b/doc/api/merge_requests.md
index 662cc9da733..7b005591545 100644
--- a/doc/api/merge_requests.md
+++ b/doc/api/merge_requests.md
@@ -1018,3 +1018,142 @@ Example response:
   }]
 }
 ```
+## Set a time estimate for a merge request
+
+Sets an estimated time of work for this merge request.
+
+```
+POST /projects/:id/merge_requests/:merge_request_id/time_estimate
+```
+
+| Attribute | Type | Required | Description |
+| --------- | ---- | -------- | ----------- |
+| `id`      | integer | yes   | The ID of a project |
+| `merge_request_id` | integer | yes | The ID of a project's merge request |
+| `duration` | string | yes | The duration in human format. e.g: 3h30m |
+
+```bash
+curl --request POST --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v3/projects/5/merge_requests/93/time_estimate?duration=3h30m
+```
+
+Example response:
+
+```json
+{
+  "human_time_estimate": "3h 30m",
+  "human_total_time_spent": null,
+  "time_estimate": 12600,
+  "total_time_spent": 0
+}
+```
+
+## Reset the time estimate for a merge request
+
+Resets the estimated time for this merge request to 0 seconds.
+
+```
+POST /projects/:id/merge_requests/:merge_request_id/reset_time_estimate
+```
+
+| Attribute | Type | Required | Description |
+| --------- | ---- | -------- | ----------- |
+| `id`      | integer | yes   | The ID of a project |
+| `merge_request_id` | integer | yes | The ID of a project's merge_request |
+
+```bash
+curl --request POST --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v3/projects/5/merge_requests/93/reset_time_estimate
+```
+
+Example response:
+
+```json
+{
+  "human_time_estimate": null,
+  "human_total_time_spent": null,
+  "time_estimate": 0,
+  "total_time_spent": 0
+}
+```
+
+## Add spent time for a merge request
+
+Adds spent time for this merge request
+
+```
+POST /projects/:id/merge_requests/:merge_request_id/add_spent_time
+```
+
+| Attribute | Type | Required | Description |
+| --------- | ---- | -------- | ----------- |
+| `id`      | integer | yes   | The ID of a project |
+| `merge_request_id` | integer | yes | The ID of a project's merge request |
+| `duration` | string | yes | The duration in human format. e.g: 3h30m |
+
+```bash
+curl --request POST --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v3/projects/5/merge_requests/93/add_spent_time?duration=1h
+```
+
+Example response:
+
+```json
+{
+  "human_time_estimate": null,
+  "human_total_time_spent": "1h",
+  "time_estimate": 0,
+  "total_time_spent": 3600
+}
+```
+
+## Reset spent time for a merge request
+
+Resets the total spent time for this merge request to 0 seconds.
+
+```
+POST /projects/:id/merge_requests/:merge_request_id/reset_spent_time
+```
+
+| Attribute | Type | Required | Description |
+| --------- | ---- | -------- | ----------- |
+| `id`      | integer | yes   | The ID of a project |
+| `merge_request_id` | integer | yes | The ID of a project's merge_request |
+
+```bash
+curl --request POST --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v3/projects/5/merge_requests/93/reset_spent_time
+```
+
+Example response:
+
+```json
+{
+  "human_time_estimate": null,
+  "human_total_time_spent": null,
+  "time_estimate": 0,
+  "total_time_spent": 0
+}
+```
+
+## Get time tracking stats
+
+```
+GET /projects/:id/merge_requests/:merge_request_id/time_stats
+```
+
+| Attribute | Type | Required | Description |
+| --------- | ---- | -------- | ----------- |
+| `id`      | integer | yes   | The ID of a project |
+| `merge_request_id` | integer | yes | The ID of a project's merge request |
+
+```bash
+curl --request GET --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v3/projects/5/merge_requests/93/time_stats
+```
+
+Example response:
+
+```json
+{
+  "human_time_estimate": "2h",
+  "human_total_time_spent": "1h",
+  "time_estimate": 7200,
+  "total_time_spent": 3600
+}
+```
diff --git a/doc/user/project/slash_commands.md b/doc/user/project/slash_commands.md
index 5f6a6c6503e..a6546cffce2 100644
--- a/doc/user/project/slash_commands.md
+++ b/doc/user/project/slash_commands.md
@@ -14,6 +14,7 @@ do.
 |:---------------------------|:-------------|
 | `/close`                   | Close the issue or merge request |
 | `/reopen`                  | Reopen the issue or merge request |
+| `/merge`                   | Merge (when build succeeds) |
 | `/title <New title>`       | Change title |
 | `/assign @username`        | Assign |
 | `/unassign`                | Remove assignee |
@@ -29,3 +30,7 @@ do.
 | <code>/due &lt;in 2 days &#124; this Friday &#124; December 31st&gt;</code> | Set due date |
 | `/remove_due_date`         | Remove due date |
 | `/wip`                     | Toggle the Work In Progress status |
+| <code>/estimate &lt;1w 3d 2h 14m&gt;</code> | Set time estimate |
+| `/remove_estimate`       | Remove estimated time |
+| <code>/spend &lt;1h 30m &#124; -1h 5m&gt;</code> | Add or substract spent time |
+| `/remove_time_spent`       | Remove time spent |
diff --git a/doc/workflow/README.md b/doc/workflow/README.md
index 59a806de210..b317bd79ded 100644
--- a/doc/workflow/README.md
+++ b/doc/workflow/README.md
@@ -19,6 +19,7 @@
 - [Slash commands](../user/project/slash_commands.md)
 - [Sharing a project with a group](share_with_group.md)
 - [Share projects with other groups](share_projects_with_other_groups.md)
+- [Time tracking](time_tracking.md)
 - [Web Editor](../user/project/repository/web_editor.md)
 - [Releases](releases.md)
 - [Milestones](milestones.md)
diff --git a/doc/workflow/importing/migrating_from_svn.md b/doc/workflow/importing/migrating_from_svn.md
index 423b095e69e..7a3628a39d7 100644
--- a/doc/workflow/importing/migrating_from_svn.md
+++ b/doc/workflow/importing/migrating_from_svn.md
@@ -79,7 +79,7 @@ Now that SubGit has configured the Git/SVN repos, run `subgit` to perform the
 initial translation of existing SVN revisions into the Git repository:
 
 ```
-subgit install $GIT_REPOS_PATH
+subgit install $GIT_REPO_PATH
 ```
 
 After the initial translation is completed, the Git repository and the SVN
diff --git a/doc/workflow/time-tracking/time-tracking-example.png b/doc/workflow/time-tracking/time-tracking-example.png
new file mode 100644
index 00000000000..bbcabb602d6
--- /dev/null
+++ b/doc/workflow/time-tracking/time-tracking-example.png
diff --git a/doc/workflow/time-tracking/time-tracking-sidebar.png b/doc/workflow/time-tracking/time-tracking-sidebar.png
new file mode 100644
index 00000000000..d1ff5571f95
--- /dev/null
+++ b/doc/workflow/time-tracking/time-tracking-sidebar.png
diff --git a/doc/workflow/time_tracking.md b/doc/workflow/time_tracking.md
new file mode 100644
index 00000000000..de12994c516
--- /dev/null
+++ b/doc/workflow/time_tracking.md
@@ -0,0 +1,73 @@
+# Time Tracking
+
+> Introduced in GitLab 8.14.
+
+Time Tracking allows you to track estimates and time spent on issues and merge
+requests within GitLab.
+
+## Overview
+
+Time Tracking lets you:
+* record the time spent working on an issue or a merge request,
+* add an estimate of the amount of time needed to complete an issue or a merge
+request.
+
+You don't have to indicate an estimate to enter the time spent, and vice versa.
+
+Data about time tracking is shown on the issue/merge request sidebar, as shown
+below.
+
+![Time tracking in the sidebar](time-tracking/time-tracking-sidebar.png)
+
+## How to enter data
+
+Time Tracking uses two [slash commands] that GitLab introduced with this new
+feature: `/spend` and `/estimate`.
+
+Slash commands can be used in the body of an issue or a merge request, but also
+in a comment in both an issue or a merge request.
+
+Below is an example of how you can use those new slash commands inside a comment.
+
+![Time tracking example in a comment](time-tracking/time-tracking-example.png)
+
+Adding time entries (time spent or estimates) is limited to project members.
+
+### Estimates
+
+To enter an estimate, write `/estimate`, followed by the time. For example, if
+you need to enter an estimate of 3 days, 5 hours and 10 minutes, you would write
+`/estimate 3d 5h 10m`.
+
+Every time you enter a new time estimate, any previous time estimates will be
+overridden by this new value. There should only be one valid estimate in an
+issue or a merge request.
+
+To remove an estimation entirely, use `/remove_estimation`.
+
+### Time spent
+
+To enter a time spent, use `/spend 3d 5h 10m`.
+
+Every new time spent entry will be added to the current total time spent for the
+issue or the merge request.
+
+You can remove time by entering a negative amount: `/spend -3d` will remove 3
+days from the total time spent. You can't go below 0 minutes of time spent,
+so GitLab will automatically reset the time spent if you remove a larger amount
+of time compared to the time that was entered already.
+
+To remove all the time spent at once, use `/remove_time_spent`.
+
+## Configuration
+
+The following time units are available:
+* weeks (w)
+* days (d)
+* hours (h)
+* minutes (m)
+
+Default conversion rates are 1w = 5d and 1d = 8h.
+
+[landing]: https://about.gitlab.com/features/time-tracking
+[slash-commands]: ../user/project/slash_commands.md
diff --git a/features/steps/dashboard/dashboard.rb b/features/steps/dashboard/dashboard.rb
index b2bec369e0f..33a1c88e33c 100644
--- a/features/steps/dashboard/dashboard.rb
+++ b/features/steps/dashboard/dashboard.rb
@@ -35,7 +35,7 @@ class Spinach::Features::Dashboard < Spinach::FeatureSteps
 
   step 'I have group with projects' do
     @group   = create(:group)
-    @project = create(:project, namespace: @group)
+    @project = create(:empty_project, namespace: @group)
     @event   = create(:closed_issue_event, project: @project)
 
     @project.team << [current_user, :master]
@@ -54,8 +54,8 @@ class Spinach::Features::Dashboard < Spinach::FeatureSteps
   end
 
   step 'group has a projects that does not belongs to me' do
-    @forbidden_project1 = create(:project, group: @group)
-    @forbidden_project2 = create(:project, group: @group)
+    @forbidden_project1 = create(:empty_project, group: @group)
+    @forbidden_project2 = create(:empty_project, group: @group)
   end
 
   step 'I should see 1 project at group list' do
diff --git a/features/steps/dashboard/issues.rb b/features/steps/dashboard/issues.rb
index 39c65bb6cde..4e15d79ae74 100644
--- a/features/steps/dashboard/issues.rb
+++ b/features/steps/dashboard/issues.rb
@@ -79,13 +79,13 @@ class Spinach::Features::DashboardIssues < Spinach::FeatureSteps
 
   def project
     @project ||= begin
-                   project = create :project
+                   project = create(:empty_project)
                    project.team << [current_user, :master]
                    project
                  end
   end
 
   def public_project
-    @public_project ||= create :project, :public
+    @public_project ||= create(:empty_project, :public)
   end
 end
diff --git a/features/steps/dashboard/merge_requests.rb b/features/steps/dashboard/merge_requests.rb
index 6777101fb15..909ffec3646 100644
--- a/features/steps/dashboard/merge_requests.rb
+++ b/features/steps/dashboard/merge_requests.rb
@@ -105,14 +105,14 @@ class Spinach::Features::DashboardMergeRequests < Spinach::FeatureSteps
 
   def project
     @project ||= begin
-                   project = create :project
+                   project = create(:project, :repository)
                    project.team << [current_user, :master]
                    project
                  end
   end
 
   def public_project
-    @public_project ||= create :project, :public
+    @public_project ||= create(:project, :public, :repository)
   end
 
   def forked_project
diff --git a/features/steps/group/milestones.rb b/features/steps/group/milestones.rb
index c1d1eca9116..70e23098dde 100644
--- a/features/steps/group/milestones.rb
+++ b/features/steps/group/milestones.rb
@@ -104,7 +104,7 @@ class Spinach::Features::GroupMilestones < Spinach::FeatureSteps
     group = owned_group
 
     %w(gitlabhq gitlab-ci cookbook-gitlab).each do |path|
-      project = create :project, path: path, group: group
+      project = create(:empty_project, path: path, group: group)
       milestone = create :milestone, title: "Version 7.2", project: project
 
       create(:label, project: project, title: 'bug')
diff --git a/features/steps/groups.rb b/features/steps/groups.rb
index 0c88838767c..4dc87dc4d9c 100644
--- a/features/steps/groups.rb
+++ b/features/steps/groups.rb
@@ -109,7 +109,7 @@ class Spinach::Features::Groups < Spinach::FeatureSteps
 
   step 'Group "Owned" has archived project' do
     group = Group.find_by(name: 'Owned')
-    @archived_project = create(:project, namespace: group, archived: true, path: "archived-project")
+    @archived_project = create(:empty_project, :archived, namespace: group, path: "archived-project")
   end
 
   step 'I should see "archived" label' do
diff --git a/features/steps/profile/profile.rb b/features/steps/profile/profile.rb
index ea480d2ad68..24cfbaad7fe 100644
--- a/features/steps/profile/profile.rb
+++ b/features/steps/profile/profile.rb
@@ -162,7 +162,7 @@ class Spinach::Features::Profile < Spinach::FeatureSteps
   step 'I have group with projects' do
     @group = create(:group)
     @group.add_owner(current_user)
-    @project = create(:project, namespace: @group)
+    @project = create(:project, :repository, namespace: @group)
     @event   = create(:closed_issue_event, project: @project)
 
     @project.team << [current_user, :master]
diff --git a/features/steps/project/deploy_keys.rb b/features/steps/project/deploy_keys.rb
index 83b9ef48392..edf78f62f9a 100644
--- a/features/steps/project/deploy_keys.rb
+++ b/features/steps/project/deploy_keys.rb
@@ -46,11 +46,11 @@ class Spinach::Features::ProjectDeployKeys < Spinach::FeatureSteps
   end
 
   step 'other projects have deploy keys' do
-    @second_project = create(:project, namespace: create(:group))
+    @second_project = create(:empty_project, namespace: create(:group))
     @second_project.team << [current_user, :master]
     create(:deploy_keys_project, project: @second_project)
 
-    @third_project = create(:project, namespace: create(:group))
+    @third_project = create(:empty_project, namespace: create(:group))
     @third_project.team << [current_user, :master]
     create(:deploy_keys_project, project: @third_project, deploy_key: @second_project.deploy_keys.first)
   end
diff --git a/features/steps/project/fork.rb b/features/steps/project/fork.rb
index 70dbd030003..9a6c04fba7a 100644
--- a/features/steps/project/fork.rb
+++ b/features/steps/project/fork.rb
@@ -9,7 +9,7 @@ class Spinach::Features::ProjectFork < Spinach::FeatureSteps
   end
 
   step 'I am a member of project "Shop"' do
-    @project = create(:project, name: "Shop")
+    @project = create(:project, :repository, name: "Shop")
     @project.team << [@user, :reporter]
   end
 
@@ -18,7 +18,7 @@ class Spinach::Features::ProjectFork < Spinach::FeatureSteps
   end
 
   step 'I already have a project named "Shop" in my namespace' do
-    @my_project = create(:project, name: "Shop", namespace: current_user.namespace)
+    @my_project = create(:project, :repository, name: "Shop", namespace: current_user.namespace)
   end
 
   step 'I should see a "Name has already been taken" warning' do
diff --git a/features/steps/project/forked_merge_requests.rb b/features/steps/project/forked_merge_requests.rb
index 6c14d835004..c0827ff8fc7 100644
--- a/features/steps/project/forked_merge_requests.rb
+++ b/features/steps/project/forked_merge_requests.rb
@@ -7,7 +7,7 @@ class Spinach::Features::ProjectForkedMergeRequests < Spinach::FeatureSteps
 
   step 'I am a member of project "Shop"' do
     @project = Project.find_by(name: "Shop")
-    @project ||= create(:project, name: "Shop")
+    @project ||= create(:project, :repository, name: "Shop")
     @project.team << [@user, :reporter]
   end
 
diff --git a/features/steps/project/merge_requests/acceptance.rb b/features/steps/project/merge_requests/acceptance.rb
index 4fda0731e2f..0a3f4649870 100644
--- a/features/steps/project/merge_requests/acceptance.rb
+++ b/features/steps/project/merge_requests/acceptance.rb
@@ -28,7 +28,7 @@ class Spinach::Features::ProjectMergeRequestsAcceptance < Spinach::FeatureSteps
 
   step 'There is an open Merge Request' do
     @user = create(:user)
-    @project = create(:project, :public)
+    @project = create(:project, :public, :repository)
     @project_member = create(:project_member, :developer, user: @user, project: @project)
     @merge_request = create(:merge_request, :with_diffs, :simple, source_project: @project)
   end
diff --git a/features/steps/project/merge_requests/revert.rb b/features/steps/project/merge_requests/revert.rb
index efbc4831ce1..3cc4fe9dafb 100644
--- a/features/steps/project/merge_requests/revert.rb
+++ b/features/steps/project/merge_requests/revert.rb
@@ -35,7 +35,7 @@ class Spinach::Features::RevertMergeRequests < Spinach::FeatureSteps
 
   step 'There is an open Merge Request' do
     @user = create(:user)
-    @project = create(:project, :public)
+    @project = create(:project, :public, :repository)
     @project_member = create(:project_member, :developer, user: @user, project: @project)
     @merge_request = create(:merge_request, :with_diffs, :simple, source_project: @project)
   end
diff --git a/features/steps/project/redirects.rb b/features/steps/project/redirects.rb
index 1ffd5cb9de5..92936f27c20 100644
--- a/features/steps/project/redirects.rb
+++ b/features/steps/project/redirects.rb
@@ -4,11 +4,11 @@ class Spinach::Features::ProjectRedirects < Spinach::FeatureSteps
   include SharedProject
 
   step 'public project "Community"' do
-    create :project, :public, name: 'Community'
+    create(:empty_project, :public, name: 'Community')
   end
 
   step 'private project "Enterprise"' do
-    create :project, name: 'Enterprise'
+    create(:empty_project, :private, name: 'Enterprise')
   end
 
   step 'I visit project "Community" page' do
diff --git a/features/steps/project/source/browse_files.rb b/features/steps/project/source/browse_files.rb
index 1cc9e37b075..f18adcadcce 100644
--- a/features/steps/project/source/browse_files.rb
+++ b/features/steps/project/source/browse_files.rb
@@ -6,7 +6,7 @@ class Spinach::Features::ProjectSourceBrowseFiles < Spinach::FeatureSteps
   include RepoHelpers
 
   step "I don't have write access" do
-    @project = create(:project, name: "Other Project", path: "other-project")
+    @project = create(:project, :repository, name: "Other Project", path: "other-project")
     @project.team << [@user, :reporter]
     visit namespace_project_tree_path(@project.namespace, @project, root_ref)
   end
diff --git a/features/steps/project/source/markdown_render.rb b/features/steps/project/source/markdown_render.rb
index dee6a8a5558..9183de76881 100644
--- a/features/steps/project/source/markdown_render.rb
+++ b/features/steps/project/source/markdown_render.rb
@@ -8,7 +8,7 @@ class Spinach::Features::ProjectSourceMarkdownRender < Spinach::FeatureSteps
 
   step 'I own project "Delta"' do
     @project = Project.find_by(name: "Delta")
-    @project ||= create(:project, name: "Delta", namespace: @user.namespace)
+    @project ||= create(:project, :repository, name: "Delta", namespace: @user.namespace)
     @project.team << [@user, :master]
   end
 
diff --git a/features/steps/project/team_management.rb b/features/steps/project/team_management.rb
index c89f587f14d..6986c7ede56 100644
--- a/features/steps/project/team_management.rb
+++ b/features/steps/project/team_management.rb
@@ -137,7 +137,7 @@ class Spinach::Features::ProjectTeamManagement < Spinach::FeatureSteps
   step 'I share project with group "OpenSource"' do
     project = Project.find_by(name: 'Shop')
     os_group = create(:group, name: 'OpenSource')
-    create(:project, group: os_group)
+    create(:empty_project, group: os_group)
     @os_user1 = create(:user)
     @os_user2 = create(:user)
     os_group.add_owner(@os_user1)
diff --git a/features/steps/shared/admin.rb b/features/steps/shared/admin.rb
index fbaa408226e..ac0a1764147 100644
--- a/features/steps/shared/admin.rb
+++ b/features/steps/shared/admin.rb
@@ -2,7 +2,7 @@ module SharedAdmin
   include Spinach::DSL
 
   step 'there are projects in system' do
-    2.times { create(:project) }
+    2.times { create(:project, :repository) }
   end
 
   step 'system has users' do
diff --git a/features/steps/shared/group.rb b/features/steps/shared/group.rb
index fe6736dacd4..de119f2c6c0 100644
--- a/features/steps/shared/group.rb
+++ b/features/steps/shared/group.rb
@@ -40,7 +40,7 @@ module SharedGroup
     user = User.find_by(name: username) || create(:user, name: username)
     group = Group.find_by(name: groupname) || create(:group, name: groupname)
     group.add_user(user, role)
-    project ||= create(:project, namespace: group, path: "project#{@project_count}")
+    project ||= create(:project, :repository, namespace: group, path: "project#{@project_count}")
     create(:closed_issue_event, project: project)
     project.team << [user, :master]
     @project_count += 1
diff --git a/features/steps/shared/project.rb b/features/steps/shared/project.rb
index b51152c79c6..553de0345d5 100644
--- a/features/steps/shared/project.rb
+++ b/features/steps/shared/project.rb
@@ -3,19 +3,19 @@ module SharedProject
 
   # Create a project without caring about what it's called
   step "I own a project" do
-    @project = create(:project, namespace: @user.namespace)
+    @project = create(:project, :repository, namespace: @user.namespace)
     @project.team << [@user, :master]
   end
 
   step "project exists in some group namespace" do
     @group = create(:group, name: 'some group')
-    @project = create(:project, namespace: @group, public_builds: false)
+    @project = create(:project, :repository, namespace: @group, public_builds: false)
   end
 
   # Create a specific project called "Shop"
   step 'I own project "Shop"' do
     @project = Project.find_by(name: "Shop")
-    @project ||= create(:project, name: "Shop", namespace: @user.namespace)
+    @project ||= create(:project, :repository, name: "Shop", namespace: @user.namespace)
     @project.team << [@user, :master]
   end
 
@@ -40,7 +40,7 @@ module SharedProject
   # Create another specific project called "Forum"
   step 'I own project "Forum"' do
     @project = Project.find_by(name: "Forum")
-    @project ||= create(:project, name: "Forum", namespace: @user.namespace, path: 'forum_project')
+    @project ||= create(:project, :repository, name: "Forum", namespace: @user.namespace, path: 'forum_project')
     @project.build_project_feature
     @project.project_feature.save
     @project.team << [@user, :master]
@@ -121,7 +121,7 @@ module SharedProject
   # ----------------------------------------
 
   step 'archived project "Archive"' do
-    create :project, :public, archived: true, name: 'Archive'
+    create(:project, :archived, :public, :repository, name: 'Archive')
   end
 
   step 'I should not see project "Archive"' do
@@ -144,7 +144,7 @@ module SharedProject
   # ----------------------------------------
 
   step 'private project "Enterprise"' do
-    create :project, name: 'Enterprise'
+    create(:project, :private, :repository, name: 'Enterprise')
   end
 
   step 'I should see project "Enterprise"' do
@@ -156,7 +156,7 @@ module SharedProject
   end
 
   step 'internal project "Internal"' do
-    create :project, :internal, name: 'Internal'
+    create(:project, :internal, :repository, name: 'Internal')
   end
 
   step 'I should see project "Internal"' do
@@ -168,7 +168,7 @@ module SharedProject
   end
 
   step 'public project "Community"' do
-    create :project, :public, name: 'Community'
+    create(:project, :public, :repository, name: 'Community')
   end
 
   step 'I should see project "Community"' do
diff --git a/features/steps/user.rb b/features/steps/user.rb
index 59385a6ab59..271c9b097d4 100644
--- a/features/steps/user.rb
+++ b/features/steps/user.rb
@@ -38,6 +38,6 @@ class Spinach::Features::User < Spinach::FeatureSteps
   end
 
   def contributed_project
-    @contributed_project ||= create(:project, :public)
+    @contributed_project ||= create(:empty_project, :public)
   end
 end
diff --git a/lib/api/entities.rb b/lib/api/entities.rb
index 885ce7d44bc..9f59939e9ae 100644
--- a/lib/api/entities.rb
+++ b/lib/api/entities.rb
@@ -268,6 +268,13 @@ module API
       end
     end
 
+    class IssuableTimeStats < Grape::Entity
+      expose :time_estimate
+      expose :total_time_spent
+      expose :human_time_estimate
+      expose :human_total_time_spent
+    end
+
     class ExternalIssue < Grape::Entity
       expose :title
       expose :id
diff --git a/lib/api/helpers.rb b/lib/api/helpers.rb
index eb2d370c68e..6b81fbf294e 100644
--- a/lib/api/helpers.rb
+++ b/lib/api/helpers.rb
@@ -86,6 +86,10 @@ module API
       IssuesFinder.new(current_user, project_id: user_project.id).find(id)
     end
 
+    def find_project_merge_request(id)
+      MergeRequestsFinder.new(current_user, project_id: user_project.id).find(id)
+    end
+
     def authenticate!
       unauthorized! unless current_user
     end
diff --git a/lib/api/issues.rb b/lib/api/issues.rb
index 161269cbd41..fe016c1ec0a 100644
--- a/lib/api/issues.rb
+++ b/lib/api/issues.rb
@@ -89,6 +89,8 @@ module API
       requires :id, type: String, desc: 'The ID of a project'
     end
     resource :projects do
+      include TimeTrackingEndpoints
+
       desc 'Get a list of project issues' do
         success Entities::Issue
       end
diff --git a/lib/api/merge_requests.rb b/lib/api/merge_requests.rb
index 5d1fe22f2df..e77af4b7a0d 100644
--- a/lib/api/merge_requests.rb
+++ b/lib/api/merge_requests.rb
@@ -10,6 +10,8 @@ module API
       requires :id, type: String, desc: 'The ID of a project'
     end
     resource :projects do
+      include TimeTrackingEndpoints
+
       helpers do
         def handle_merge_request_errors!(errors)
           if errors[:project_access].any?
@@ -96,7 +98,7 @@ module API
         requires :merge_request_id, type: Integer, desc: 'The ID of a merge request'
       end
       delete ":id/merge_requests/:merge_request_id" do
-        merge_request = user_project.merge_requests.find_by(id: params[:merge_request_id])
+        merge_request = find_project_merge_request(params[:merge_request_id])
 
         authorize!(:destroy_merge_request, merge_request)
         merge_request.destroy
@@ -116,7 +118,7 @@ module API
           success Entities::MergeRequest
         end
         get path do
-          merge_request = user_project.merge_requests.find(params[:merge_request_id])
+          merge_request = find_project_merge_request(params[:merge_request_id])
           authorize! :read_merge_request, merge_request
           present merge_request, with: Entities::MergeRequest, current_user: current_user, project: user_project
         end
@@ -125,7 +127,7 @@ module API
           success Entities::RepoCommit
         end
         get "#{path}/commits" do
-          merge_request = user_project.merge_requests.find(params[:merge_request_id])
+          merge_request = find_project_merge_request(params[:merge_request_id])
           authorize! :read_merge_request, merge_request
           present merge_request.commits, with: Entities::RepoCommit
         end
@@ -134,7 +136,7 @@ module API
           success Entities::MergeRequestChanges
         end
         get "#{path}/changes" do
-          merge_request = user_project.merge_requests.find(params[:merge_request_id])
+          merge_request = find_project_merge_request(params[:merge_request_id])
           authorize! :read_merge_request, merge_request
           present merge_request, with: Entities::MergeRequestChanges, current_user: current_user
         end
@@ -153,7 +155,7 @@ module API
                           :remove_source_branch
         end
         put path do
-          merge_request = user_project.merge_requests.find(params.delete(:merge_request_id))
+          merge_request = find_project_merge_request(params.delete(:merge_request_id))
           authorize! :update_merge_request, merge_request
 
           mr_params = declared_params(include_missing: false)
@@ -180,7 +182,7 @@ module API
           optional :sha, type: String, desc: 'When present, must have the HEAD SHA of the source branch'
         end
         put "#{path}/merge" do
-          merge_request = user_project.merge_requests.find(params[:merge_request_id])
+          merge_request = find_project_merge_request(params[:merge_request_id])
 
           # Merge request can not be merged
           # because user dont have permissions to push into target branch
@@ -216,7 +218,7 @@ module API
           success Entities::MergeRequest
         end
         post "#{path}/cancel_merge_when_build_succeeds" do
-          merge_request = user_project.merge_requests.find(params[:merge_request_id])
+          merge_request = find_project_merge_request(params[:merge_request_id])
 
           unauthorized! unless merge_request.can_cancel_merge_when_build_succeeds?(current_user)
 
@@ -233,7 +235,7 @@ module API
           use :pagination
         end
         get "#{path}/comments" do
-          merge_request = user_project.merge_requests.find(params[:merge_request_id])
+          merge_request = find_project_merge_request(params[:merge_request_id])
 
           authorize! :read_merge_request, merge_request
 
@@ -248,7 +250,7 @@ module API
           requires :note, type: String, desc: 'The text of the comment'
         end
         post "#{path}/comments" do
-          merge_request = user_project.merge_requests.find(params[:merge_request_id])
+          merge_request = find_project_merge_request(params[:merge_request_id])
           authorize! :create_note, merge_request
 
           opts = {
@@ -273,7 +275,7 @@ module API
           use :pagination
         end
         get "#{path}/closes_issues" do
-          merge_request = user_project.merge_requests.find(params[:merge_request_id])
+          merge_request = find_project_merge_request(params[:merge_request_id])
           issues = ::Kaminari.paginate_array(merge_request.closes_issues(current_user))
           present paginate(issues), with: issue_entity(user_project), current_user: current_user
         end
diff --git a/lib/api/time_tracking_endpoints.rb b/lib/api/time_tracking_endpoints.rb
new file mode 100644
index 00000000000..85b5f7d98b8
--- /dev/null
+++ b/lib/api/time_tracking_endpoints.rb
@@ -0,0 +1,114 @@
+module API
+  module TimeTrackingEndpoints
+    extend ActiveSupport::Concern
+
+    included do
+      helpers do
+        def issuable_name
+          declared_params.has_key?(:issue_id) ? 'issue' : 'merge_request'
+        end
+
+        def issuable_key
+          "#{issuable_name}_id".to_sym
+        end
+
+        def update_issuable_key
+          "update_#{issuable_name}".to_sym
+        end
+
+        def read_issuable_key
+          "read_#{issuable_name}".to_sym
+        end
+
+        def load_issuable
+          @issuable ||= begin
+            case issuable_name
+            when 'issue'
+              find_project_issue(params.delete(issuable_key))
+            when 'merge_request'
+              find_project_merge_request(params.delete(issuable_key))
+            end
+          end
+        end
+
+        def update_issuable(attrs)
+          custom_params = declared_params(include_missing: false)
+          custom_params.merge!(attrs)
+
+          issuable = update_service.new(user_project, current_user, custom_params).execute(load_issuable)
+          if issuable.valid?
+            present issuable, with: Entities::IssuableTimeStats
+          else
+            render_validation_error!(issuable)
+          end
+        end
+
+        def update_service
+          issuable_name == 'issue' ? ::Issues::UpdateService : ::MergeRequests::UpdateService
+        end
+      end
+
+      issuable_name            = name.end_with?('Issues') ? 'issue' : 'merge_request'
+      issuable_collection_name = issuable_name.pluralize
+      issuable_key             = "#{issuable_name}_id".to_sym
+
+      desc "Set a time estimate for a project #{issuable_name}"
+      params do
+        requires issuable_key, type: Integer, desc: "The ID of a project #{issuable_name}"
+        requires :duration, type: String, desc: 'The duration to be parsed'
+      end
+      post ":id/#{issuable_collection_name}/:#{issuable_key}/time_estimate" do
+        authorize! update_issuable_key, load_issuable
+
+        status :ok
+        update_issuable(time_estimate: Gitlab::TimeTrackingFormatter.parse(params.delete(:duration)))
+      end
+
+      desc "Reset the time estimate for a project #{issuable_name}"
+      params do
+        requires issuable_key, type: Integer, desc: "The ID of a project #{issuable_name}"
+      end
+      post ":id/#{issuable_collection_name}/:#{issuable_key}/reset_time_estimate" do
+        authorize! update_issuable_key, load_issuable
+
+        status :ok
+        update_issuable(time_estimate: 0)
+      end
+
+      desc "Add spent time for a project #{issuable_name}"
+      params do
+        requires issuable_key, type: Integer, desc: "The ID of a project #{issuable_name}"
+        requires :duration, type: String, desc: 'The duration to be parsed'
+      end
+      post ":id/#{issuable_collection_name}/:#{issuable_key}/add_spent_time" do
+        authorize! update_issuable_key, load_issuable
+
+        update_issuable(spend_time: {
+          duration: Gitlab::TimeTrackingFormatter.parse(params.delete(:duration)),
+          user: current_user
+        })
+      end
+
+      desc "Reset spent time for a project #{issuable_name}"
+      params do
+        requires issuable_key, type: Integer, desc: "The ID of a project #{issuable_name}"
+      end
+      post ":id/#{issuable_collection_name}/:#{issuable_key}/reset_spent_time" do
+        authorize! update_issuable_key, load_issuable
+
+        status :ok
+        update_issuable(spend_time: { duration: :reset, user: current_user })
+      end
+
+      desc "Show time stats for a project #{issuable_name}"
+      params do
+        requires issuable_key, type: Integer, desc: "The ID of a project #{issuable_name}"
+      end
+      get ":id/#{issuable_collection_name}/:#{issuable_key}/time_stats" do
+        authorize! read_issuable_key, load_issuable
+
+        present load_issuable, with: Entities::IssuableTimeStats
+      end
+    end
+  end
+end
diff --git a/lib/banzai/filter/reference_filter.rb b/lib/banzai/filter/reference_filter.rb
index 84bfeac8041..ab7af1cad21 100644
--- a/lib/banzai/filter/reference_filter.rb
+++ b/lib/banzai/filter/reference_filter.rb
@@ -20,10 +20,10 @@ module Banzai
       # Examples:
       #
       #   data_attribute(project: 1, issue: 2)
-      #   # => "data-reference-filter=\"SomeReferenceFilter\" data-project=\"1\" data-issue=\"2\""
+      #   # => "data-reference-type=\"SomeReferenceFilter\" data-project=\"1\" data-issue=\"2\""
       #
       #   data_attribute(project: 3, merge_request: 4)
-      #   # => "data-reference-filter=\"SomeReferenceFilter\" data-project=\"3\" data-merge-request=\"4\""
+      #   # => "data-reference-type=\"SomeReferenceFilter\" data-project=\"3\" data-merge-request=\"4\""
       #
       # Returns a String
       def data_attribute(attributes = {})
@@ -31,7 +31,9 @@ module Banzai
 
         attributes[:reference_type] ||= self.class.reference_type
         attributes.delete(:original) if context[:no_original_data]
-        attributes.map { |key, value| %Q(data-#{key.to_s.dasherize}="#{escape_once(value)}") }.join(" ")
+        attributes.map do |key, value|
+          %Q(data-#{key.to_s.dasherize}="#{escape_once(value)}")
+        end.join(' ')
       end
 
       def escape_once(html)
diff --git a/lib/gitlab/cycle_analytics/base_event.rb b/lib/gitlab/cycle_analytics/base_event_fetcher.rb
index 53a148ad703..0d8791d396b 100644
--- a/lib/gitlab/cycle_analytics/base_event.rb
+++ b/lib/gitlab/cycle_analytics/base_event_fetcher.rb
@@ -1,13 +1,13 @@
 module Gitlab
   module CycleAnalytics
-    class BaseEvent
-      include MetricsTables
+    class BaseEventFetcher
+      include BaseQuery
 
-      attr_reader :stage, :start_time_attrs, :end_time_attrs, :projections, :query
+      attr_reader :projections, :query, :stage, :order
 
-      def initialize(project:, options:)
-        @query = EventsQuery.new(project: project, options: options)
+      def initialize(project:, stage:, options:)
         @project = project
+        @stage = stage
         @options = options
       end
 
@@ -19,10 +19,8 @@ module Gitlab
         end.compact
       end
 
-      def custom_query(_base_query); end
-
       def order
-        @order || @start_time_attrs
+        @order || default_order
       end
 
       private
@@ -34,7 +32,17 @@ module Gitlab
       end
 
       def event_result
-        @event_result ||= @query.execute(self).to_a
+        @event_result ||= ActiveRecord::Base.connection.exec_query(events_query.to_sql).to_a
+      end
+
+      def events_query
+        diff_fn = subtract_datetimes_diff(base_query, @options[:start_time_attrs], @options[:end_time_attrs])
+
+        base_query.project(extract_diff_epoch(diff_fn).as('total_time'), *projections).order(order.desc)
+      end
+
+      def default_order
+        [@options[:start_time_attrs]].flatten.first
       end
 
       def serialize(_event)
diff --git a/lib/gitlab/cycle_analytics/base_query.rb b/lib/gitlab/cycle_analytics/base_query.rb
new file mode 100644
index 00000000000..d560dca45c8
--- /dev/null
+++ b/lib/gitlab/cycle_analytics/base_query.rb
@@ -0,0 +1,31 @@
+module Gitlab
+  module CycleAnalytics
+    module BaseQuery
+      include MetricsTables
+      include Gitlab::Database::Median
+      include Gitlab::Database::DateTime
+
+      private
+
+      def base_query
+        @base_query ||= stage_query
+      end
+
+      def stage_query
+        query = mr_closing_issues_table.join(issue_table).on(issue_table[:id].eq(mr_closing_issues_table[:issue_id])).
+          join(issue_metrics_table).on(issue_table[:id].eq(issue_metrics_table[:issue_id])).
+          where(issue_table[:project_id].eq(@project.id)).
+          where(issue_table[:deleted_at].eq(nil)).
+          where(issue_table[:created_at].gteq(@options[:from]))
+
+        # Load merge_requests
+        query = query.join(mr_table, Arel::Nodes::OuterJoin).
+          on(mr_table[:id].eq(mr_closing_issues_table[:merge_request_id])).
+          join(mr_metrics_table).
+          on(mr_table[:id].eq(mr_metrics_table[:merge_request_id]))
+
+        query
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/cycle_analytics/base_stage.rb b/lib/gitlab/cycle_analytics/base_stage.rb
new file mode 100644
index 00000000000..74bbcdcb3dd
--- /dev/null
+++ b/lib/gitlab/cycle_analytics/base_stage.rb
@@ -0,0 +1,54 @@
+module Gitlab
+  module CycleAnalytics
+    class BaseStage
+      include BaseQuery
+
+      def initialize(project:, options:)
+        @project = project
+        @options = options
+      end
+
+      def events
+        event_fetcher.fetch
+      end
+
+      def as_json
+        AnalyticsStageSerializer.new.represent(self).as_json
+      end
+
+      def title
+        name.to_s.capitalize
+      end
+
+      def median
+        cte_table = Arel::Table.new("cte_table_for_#{name}")
+
+        # Build a `SELECT` query. We find the first of the `end_time_attrs` that isn't `NULL` (call this end_time).
+        # Next, we find the first of the start_time_attrs that isn't `NULL` (call this start_time).
+        # We compute the (end_time - start_time) interval, and give it an alias based on the current
+        # cycle analytics stage.
+        interval_query = Arel::Nodes::As.new(
+          cte_table,
+          subtract_datetimes(base_query.dup, start_time_attrs, end_time_attrs, name.to_s))
+
+        median_datetime(cte_table, interval_query, name)
+      end
+
+      def name
+        raise NotImplementedError.new("Expected #{self.name} to implement name")
+      end
+
+      private
+
+      def event_fetcher
+        @event_fetcher ||= Gitlab::CycleAnalytics::EventFetcher[name].new(project: @project,
+                                                                          stage: name,
+                                                                          options: event_options)
+      end
+
+      def event_options
+        @options.merge(start_time_attrs: start_time_attrs, end_time_attrs: end_time_attrs)
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/cycle_analytics/review_event.rb b/lib/gitlab/cycle_analytics/code_event_fetcher.rb
index b394a02cc52..5245b9ca8fc 100644
--- a/lib/gitlab/cycle_analytics/review_event.rb
+++ b/lib/gitlab/cycle_analytics/code_event_fetcher.rb
@@ -1,22 +1,22 @@
 module Gitlab
   module CycleAnalytics
-    class ReviewEvent < BaseEvent
+    class CodeEventFetcher < BaseEventFetcher
       include MergeRequestAllowed
 
       def initialize(*args)
-        @stage = :review
-        @start_time_attrs = mr_table[:created_at]
-        @end_time_attrs = mr_metrics_table[:merged_at]
         @projections = [mr_table[:title],
                         mr_table[:iid],
                         mr_table[:id],
                         mr_table[:created_at],
                         mr_table[:state],
                         mr_table[:author_id]]
+        @order = mr_table[:created_at]
 
         super(*args)
       end
 
+      private
+
       def serialize(event)
         AnalyticsMergeRequestSerializer.new(project: @project).represent(event).as_json
       end
diff --git a/lib/gitlab/cycle_analytics/code_stage.rb b/lib/gitlab/cycle_analytics/code_stage.rb
new file mode 100644
index 00000000000..d1bc2055ba8
--- /dev/null
+++ b/lib/gitlab/cycle_analytics/code_stage.rb
@@ -0,0 +1,21 @@
+module Gitlab
+  module CycleAnalytics
+    class CodeStage < BaseStage
+      def start_time_attrs
+        @start_time_attrs ||= issue_metrics_table[:first_mentioned_in_commit_at]
+      end
+
+      def end_time_attrs
+        @end_time_attrs ||= mr_table[:created_at]
+      end
+
+      def name
+        :code
+      end
+
+      def description
+        "Time until first merge request"
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/cycle_analytics/event_fetcher.rb b/lib/gitlab/cycle_analytics/event_fetcher.rb
new file mode 100644
index 00000000000..50e126cf00b
--- /dev/null
+++ b/lib/gitlab/cycle_analytics/event_fetcher.rb
@@ -0,0 +1,9 @@
+module Gitlab
+  module CycleAnalytics
+    module EventFetcher
+      def self.[](stage_name)
+        CycleAnalytics.const_get("#{stage_name.to_s.camelize}EventFetcher")
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/cycle_analytics/events.rb b/lib/gitlab/cycle_analytics/events.rb
deleted file mode 100644
index 2d703d76cbb..00000000000
--- a/lib/gitlab/cycle_analytics/events.rb
+++ /dev/null
@@ -1,38 +0,0 @@
-module Gitlab
-  module CycleAnalytics
-    class Events
-      def initialize(project:, options:)
-        @project = project
-        @options = options
-      end
-
-      def issue_events
-        IssueEvent.new(project: @project, options: @options).fetch
-      end
-
-      def plan_events
-        PlanEvent.new(project: @project, options: @options).fetch
-      end
-
-      def code_events
-        CodeEvent.new(project: @project, options: @options).fetch
-      end
-
-      def test_events
-        TestEvent.new(project: @project, options: @options).fetch
-      end
-
-      def review_events
-        ReviewEvent.new(project: @project, options: @options).fetch
-      end
-
-      def staging_events
-        StagingEvent.new(project: @project, options: @options).fetch
-      end
-
-      def production_events
-        ProductionEvent.new(project: @project, options: @options).fetch
-      end
-    end
-  end
-end
diff --git a/lib/gitlab/cycle_analytics/events_query.rb b/lib/gitlab/cycle_analytics/events_query.rb
deleted file mode 100644
index 2418832ccc2..00000000000
--- a/lib/gitlab/cycle_analytics/events_query.rb
+++ /dev/null
@@ -1,37 +0,0 @@
-module Gitlab
-  module CycleAnalytics
-    class EventsQuery
-      attr_reader :project
-
-      def initialize(project:, options: {})
-        @project = project
-        @from = options[:from]
-        @branch = options[:branch]
-        @fetcher = Gitlab::CycleAnalytics::MetricsFetcher.new(project: project, from: @from, branch: @branch)
-      end
-
-      def execute(stage_class)
-        @stage_class = stage_class
-
-        ActiveRecord::Base.connection.exec_query(query.to_sql)
-      end
-
-      private
-
-      def query
-        base_query = @fetcher.base_query_for(@stage_class.stage)
-        diff_fn = @fetcher.subtract_datetimes_diff(base_query, @stage_class.start_time_attrs, @stage_class.end_time_attrs)
-
-        @stage_class.custom_query(base_query)
-
-        base_query.project(extract_epoch(diff_fn).as('total_time'), *@stage_class.projections).order(@stage_class.order.desc)
-      end
-
-      def extract_epoch(arel_attribute)
-        return arel_attribute unless Gitlab::Database.postgresql?
-
-        Arel.sql(%Q{EXTRACT(EPOCH FROM (#{arel_attribute.to_sql}))})
-      end
-    end
-  end
-end
diff --git a/lib/gitlab/cycle_analytics/issue_event.rb b/lib/gitlab/cycle_analytics/issue_event.rb
deleted file mode 100644
index 705b7e5ce24..00000000000
--- a/lib/gitlab/cycle_analytics/issue_event.rb
+++ /dev/null
@@ -1,27 +0,0 @@
-module Gitlab
-  module CycleAnalytics
-    class IssueEvent < BaseEvent
-      include IssueAllowed
-
-      def initialize(*args)
-        @stage = :issue
-        @start_time_attrs = issue_table[:created_at]
-        @end_time_attrs = [issue_metrics_table[:first_associated_with_milestone_at],
-                           issue_metrics_table[:first_added_to_board_at]]
-        @projections = [issue_table[:title],
-                        issue_table[:iid],
-                        issue_table[:id],
-                        issue_table[:created_at],
-                        issue_table[:author_id]]
-
-        super(*args)
-      end
-
-      private
-
-      def serialize(event)
-        AnalyticsIssueSerializer.new(project: @project).represent(event).as_json
-      end
-    end
-  end
-end
diff --git a/lib/gitlab/cycle_analytics/production_event.rb b/lib/gitlab/cycle_analytics/issue_event_fetcher.rb
index 4868c3c6237..0d8da99455e 100644
--- a/lib/gitlab/cycle_analytics/production_event.rb
+++ b/lib/gitlab/cycle_analytics/issue_event_fetcher.rb
@@ -1,12 +1,9 @@
 module Gitlab
   module CycleAnalytics
-    class ProductionEvent < BaseEvent
+    class IssueEventFetcher < BaseEventFetcher
       include IssueAllowed
 
       def initialize(*args)
-        @stage = :production
-        @start_time_attrs = issue_table[:created_at]
-        @end_time_attrs = mr_metrics_table[:first_deployed_to_production_at]
         @projections = [issue_table[:title],
                         issue_table[:iid],
                         issue_table[:id],
diff --git a/lib/gitlab/cycle_analytics/issue_stage.rb b/lib/gitlab/cycle_analytics/issue_stage.rb
new file mode 100644
index 00000000000..d2068fbc38f
--- /dev/null
+++ b/lib/gitlab/cycle_analytics/issue_stage.rb
@@ -0,0 +1,22 @@
+module Gitlab
+  module CycleAnalytics
+    class IssueStage < BaseStage
+      def start_time_attrs
+        @start_time_attrs ||= issue_table[:created_at]
+      end
+
+      def end_time_attrs
+        @end_time_attrs ||= [issue_metrics_table[:first_associated_with_milestone_at],
+                             issue_metrics_table[:first_added_to_board_at]]
+      end
+
+      def name
+        :issue
+      end
+
+      def description
+        "Time before an issue gets scheduled"
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/cycle_analytics/metrics_fetcher.rb b/lib/gitlab/cycle_analytics/metrics_fetcher.rb
deleted file mode 100644
index b71e8735e27..00000000000
--- a/lib/gitlab/cycle_analytics/metrics_fetcher.rb
+++ /dev/null
@@ -1,60 +0,0 @@
-module Gitlab
-  module CycleAnalytics
-    class MetricsFetcher
-      include Gitlab::Database::Median
-      include Gitlab::Database::DateTime
-      include MetricsTables
-
-      DEPLOYMENT_METRIC_STAGES = %i[production staging]
-
-      def initialize(project:, from:, branch:)
-        @project = project
-        @project = project
-        @from = from
-        @branch = branch
-      end
-
-      def calculate_metric(name, start_time_attrs, end_time_attrs)
-        cte_table = Arel::Table.new("cte_table_for_#{name}")
-
-        # Build a `SELECT` query. We find the first of the `end_time_attrs` that isn't `NULL` (call this end_time).
-        # Next, we find the first of the start_time_attrs that isn't `NULL` (call this start_time).
-        # We compute the (end_time - start_time) interval, and give it an alias based on the current
-        # cycle analytics stage.
-        interval_query = Arel::Nodes::As.new(
-          cte_table,
-          subtract_datetimes(base_query_for(name), start_time_attrs, end_time_attrs, name.to_s))
-
-        median_datetime(cte_table, interval_query, name)
-      end
-
-      # Join table with a row for every <issue,merge_request> pair (where the merge request
-      # closes the given issue) with issue and merge request metrics included. The metrics
-      # are loaded with an inner join, so issues / merge requests without metrics are
-      # automatically excluded.
-      def base_query_for(name)
-        # Load issues
-        query = mr_closing_issues_table.join(issue_table).on(issue_table[:id].eq(mr_closing_issues_table[:issue_id])).
-          join(issue_metrics_table).on(issue_table[:id].eq(issue_metrics_table[:issue_id])).
-          where(issue_table[:project_id].eq(@project.id)).
-          where(issue_table[:deleted_at].eq(nil)).
-          where(issue_table[:created_at].gteq(@from))
-
-        query = query.where(build_table[:ref].eq(@branch)) if name == :test && @branch
-
-        # Load merge_requests
-        query = query.join(mr_table, Arel::Nodes::OuterJoin).
-          on(mr_table[:id].eq(mr_closing_issues_table[:merge_request_id])).
-          join(mr_metrics_table).
-          on(mr_table[:id].eq(mr_metrics_table[:merge_request_id]))
-
-        if DEPLOYMENT_METRIC_STAGES.include?(name)
-          # Limit to merge requests that have been deployed to production after `@from`
-          query.where(mr_metrics_table[:first_deployed_to_production_at].gteq(@from))
-        end
-
-        query
-      end
-    end
-  end
-end
diff --git a/lib/gitlab/cycle_analytics/plan_event.rb b/lib/gitlab/cycle_analytics/plan_event_fetcher.rb
index 7c3f0e9989f..88a8710dbe6 100644
--- a/lib/gitlab/cycle_analytics/plan_event.rb
+++ b/lib/gitlab/cycle_analytics/plan_event_fetcher.rb
@@ -1,19 +1,17 @@
 module Gitlab
   module CycleAnalytics
-    class PlanEvent < BaseEvent
+    class PlanEventFetcher < BaseEventFetcher
       def initialize(*args)
-        @stage = :plan
-        @start_time_attrs = issue_metrics_table[:first_associated_with_milestone_at]
-        @end_time_attrs = [issue_metrics_table[:first_added_to_board_at],
-                           issue_metrics_table[:first_mentioned_in_commit_at]]
         @projections = [mr_diff_table[:st_commits].as('commits'),
                         issue_metrics_table[:first_mentioned_in_commit_at]]
 
         super(*args)
       end
 
-      def custom_query(base_query)
+      def events_query
         base_query.join(mr_diff_table).on(mr_diff_table[:merge_request_id].eq(mr_table[:id]))
+
+        super
       end
 
       private
diff --git a/lib/gitlab/cycle_analytics/plan_stage.rb b/lib/gitlab/cycle_analytics/plan_stage.rb
new file mode 100644
index 00000000000..3b4dfc6a30e
--- /dev/null
+++ b/lib/gitlab/cycle_analytics/plan_stage.rb
@@ -0,0 +1,22 @@
+module Gitlab
+  module CycleAnalytics
+    class PlanStage < BaseStage
+      def start_time_attrs
+        @start_time_attrs ||= [issue_metrics_table[:first_associated_with_milestone_at],
+                               issue_metrics_table[:first_added_to_board_at]]
+      end
+
+      def end_time_attrs
+        @end_time_attrs ||= issue_metrics_table[:first_mentioned_in_commit_at]
+      end
+
+      def name
+        :plan
+      end
+
+      def description
+        "Time before an issue starts implementation"
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/cycle_analytics/production_event_fetcher.rb b/lib/gitlab/cycle_analytics/production_event_fetcher.rb
new file mode 100644
index 00000000000..0fa2e87f673
--- /dev/null
+++ b/lib/gitlab/cycle_analytics/production_event_fetcher.rb
@@ -0,0 +1,6 @@
+module Gitlab
+  module CycleAnalytics
+    class ProductionEventFetcher < IssueEventFetcher
+    end
+  end
+end
diff --git a/lib/gitlab/cycle_analytics/production_helper.rb b/lib/gitlab/cycle_analytics/production_helper.rb
new file mode 100644
index 00000000000..d693443bfa4
--- /dev/null
+++ b/lib/gitlab/cycle_analytics/production_helper.rb
@@ -0,0 +1,9 @@
+module Gitlab
+  module CycleAnalytics
+    module ProductionHelper
+      def stage_query
+        super.where(mr_metrics_table[:first_deployed_to_production_at].gteq(@options[:from]))
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/cycle_analytics/production_stage.rb b/lib/gitlab/cycle_analytics/production_stage.rb
new file mode 100644
index 00000000000..2a6bcc80116
--- /dev/null
+++ b/lib/gitlab/cycle_analytics/production_stage.rb
@@ -0,0 +1,28 @@
+module Gitlab
+  module CycleAnalytics
+    class ProductionStage < BaseStage
+      include ProductionHelper
+
+      def start_time_attrs
+        @start_time_attrs ||= issue_table[:created_at]
+      end
+
+      def end_time_attrs
+        @end_time_attrs ||= mr_metrics_table[:first_deployed_to_production_at]
+      end
+
+      def name
+        :production
+      end
+
+      def description
+        "From issue creation until deploy to production"
+      end
+
+      def query
+        # Limit to merge requests that have been deployed to production after `@from`
+        query.where(mr_metrics_table[:first_deployed_to_production_at].gteq(@from))
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/cycle_analytics/code_event.rb b/lib/gitlab/cycle_analytics/review_event_fetcher.rb
index 2afdf0b8518..4df0bd06393 100644
--- a/lib/gitlab/cycle_analytics/code_event.rb
+++ b/lib/gitlab/cycle_analytics/review_event_fetcher.rb
@@ -1,25 +1,19 @@
 module Gitlab
   module CycleAnalytics
-    class CodeEvent < BaseEvent
+    class ReviewEventFetcher < BaseEventFetcher
       include MergeRequestAllowed
 
       def initialize(*args)
-        @stage = :code
-        @start_time_attrs = issue_metrics_table[:first_mentioned_in_commit_at]
-        @end_time_attrs = mr_table[:created_at]
         @projections = [mr_table[:title],
                         mr_table[:iid],
                         mr_table[:id],
                         mr_table[:created_at],
                         mr_table[:state],
                         mr_table[:author_id]]
-        @order = mr_table[:created_at]
 
         super(*args)
       end
 
-      private
-
       def serialize(event)
         AnalyticsMergeRequestSerializer.new(project: @project).represent(event).as_json
       end
diff --git a/lib/gitlab/cycle_analytics/review_stage.rb b/lib/gitlab/cycle_analytics/review_stage.rb
new file mode 100644
index 00000000000..fbaa3010d81
--- /dev/null
+++ b/lib/gitlab/cycle_analytics/review_stage.rb
@@ -0,0 +1,21 @@
+module Gitlab
+  module CycleAnalytics
+    class ReviewStage < BaseStage
+      def start_time_attrs
+        @start_time_attrs ||= mr_table[:created_at]
+      end
+
+      def end_time_attrs
+        @end_time_attrs ||= mr_metrics_table[:merged_at]
+      end
+
+      def name
+        :review
+      end
+
+      def description
+        "Time between merge request creation and merge/close"
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/cycle_analytics/stage.rb b/lib/gitlab/cycle_analytics/stage.rb
new file mode 100644
index 00000000000..28e0455df59
--- /dev/null
+++ b/lib/gitlab/cycle_analytics/stage.rb
@@ -0,0 +1,9 @@
+module Gitlab
+  module CycleAnalytics
+    module Stage
+      def self.[](stage_name)
+        CycleAnalytics.const_get("#{stage_name.to_s.camelize}Stage")
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/cycle_analytics/stage_summary.rb b/lib/gitlab/cycle_analytics/stage_summary.rb
new file mode 100644
index 00000000000..b34baf5b081
--- /dev/null
+++ b/lib/gitlab/cycle_analytics/stage_summary.rb
@@ -0,0 +1,23 @@
+module Gitlab
+  module CycleAnalytics
+    class StageSummary
+      def initialize(project, from:, current_user:)
+        @project = project
+        @from = from
+        @current_user = current_user
+      end
+
+      def data
+        [serialize(Summary::Issue.new(project: @project, from: @from, current_user: @current_user)),
+         serialize(Summary::Commit.new(project: @project, from: @from)),
+         serialize(Summary::Deploy.new(project: @project, from: @from))]
+      end
+
+      private
+
+      def serialize(summary_object)
+        AnalyticsSummarySerializer.new.represent(summary_object).as_json
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/cycle_analytics/staging_event.rb b/lib/gitlab/cycle_analytics/staging_event_fetcher.rb
index a1f30b716f6..a34731a5fcd 100644
--- a/lib/gitlab/cycle_analytics/staging_event.rb
+++ b/lib/gitlab/cycle_analytics/staging_event_fetcher.rb
@@ -1,10 +1,7 @@
 module Gitlab
   module CycleAnalytics
-    class StagingEvent < BaseEvent
+    class StagingEventFetcher < BaseEventFetcher
       def initialize(*args)
-        @stage = :staging
-        @start_time_attrs = mr_metrics_table[:merged_at]
-        @end_time_attrs = mr_metrics_table[:first_deployed_to_production_at]
         @projections = [build_table[:id]]
         @order = build_table[:created_at]
 
@@ -17,8 +14,10 @@ module Gitlab
         super
       end
 
-      def custom_query(base_query)
+      def events_query
         base_query.join(build_table).on(mr_metrics_table[:pipeline_id].eq(build_table[:commit_id]))
+
+        super
       end
 
       private
diff --git a/lib/gitlab/cycle_analytics/staging_stage.rb b/lib/gitlab/cycle_analytics/staging_stage.rb
new file mode 100644
index 00000000000..945909a4d62
--- /dev/null
+++ b/lib/gitlab/cycle_analytics/staging_stage.rb
@@ -0,0 +1,22 @@
+module Gitlab
+  module CycleAnalytics
+    class StagingStage < BaseStage
+      include ProductionHelper
+      def start_time_attrs
+        @start_time_attrs ||= mr_metrics_table[:merged_at]
+      end
+
+      def end_time_attrs
+        @end_time_attrs ||= mr_metrics_table[:first_deployed_to_production_at]
+      end
+
+      def name
+        :staging
+      end
+
+      def description
+        "From merge request merge until deploy to production"
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/cycle_analytics/summary/base.rb b/lib/gitlab/cycle_analytics/summary/base.rb
new file mode 100644
index 00000000000..43fa3795e5c
--- /dev/null
+++ b/lib/gitlab/cycle_analytics/summary/base.rb
@@ -0,0 +1,20 @@
+module Gitlab
+  module CycleAnalytics
+    module Summary
+      class Base
+        def initialize(project:, from:)
+          @project = project
+          @from = from
+        end
+
+        def title
+          self.class.name.demodulize
+        end
+
+        def value
+          raise NotImplementedError.new("Expected #{self.name} to implement value")
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/cycle_analytics/summary/commit.rb b/lib/gitlab/cycle_analytics/summary/commit.rb
new file mode 100644
index 00000000000..7b8faa4d854
--- /dev/null
+++ b/lib/gitlab/cycle_analytics/summary/commit.rb
@@ -0,0 +1,39 @@
+module Gitlab
+  module CycleAnalytics
+    module Summary
+      class Commit < Base
+        def value
+          @value ||= count_commits
+        end
+
+        private
+
+        # Don't use the `Gitlab::Git::Repository#log` method, because it enforces
+        # a limit. Since we need a commit count, we _can't_ enforce a limit, so
+        # the easiest way forward is to replicate the relevant portions of the
+        # `log` function here.
+        def count_commits
+          return unless ref
+
+          repository = @project.repository.raw_repository
+          sha = @project.repository.commit(ref).sha
+
+          cmd = %W(git --git-dir=#{repository.path} log)
+          cmd << '--format=%H'
+          cmd << "--after=#{@from.iso8601}"
+          cmd << sha
+
+          output, status = Gitlab::Popen.popen(cmd)
+
+          raise IOError, output unless status.zero?
+
+          output.lines.count
+        end
+
+        def ref
+          @ref ||= @project.default_branch.presence
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/cycle_analytics/summary/deploy.rb b/lib/gitlab/cycle_analytics/summary/deploy.rb
new file mode 100644
index 00000000000..06032e9200e
--- /dev/null
+++ b/lib/gitlab/cycle_analytics/summary/deploy.rb
@@ -0,0 +1,11 @@
+module Gitlab
+  module CycleAnalytics
+    module Summary
+      class Deploy < Base
+        def value
+          @value ||= @project.deployments.where("created_at > ?", @from).count
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/cycle_analytics/summary/issue.rb b/lib/gitlab/cycle_analytics/summary/issue.rb
new file mode 100644
index 00000000000..008468f24b9
--- /dev/null
+++ b/lib/gitlab/cycle_analytics/summary/issue.rb
@@ -0,0 +1,21 @@
+module Gitlab
+  module CycleAnalytics
+    module Summary
+      class Issue < Base
+        def initialize(project:, from:, current_user:)
+          @project = project
+          @from = from
+          @current_user = current_user
+        end
+
+        def title
+          'New Issue'
+        end
+
+        def value
+          @value ||= IssuesFinder.new(@current_user, project_id: @project.id).execute.created_after(@from).count
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/cycle_analytics/test_event.rb b/lib/gitlab/cycle_analytics/test_event.rb
deleted file mode 100644
index d553d0b5aec..00000000000
--- a/lib/gitlab/cycle_analytics/test_event.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-module Gitlab
-  module CycleAnalytics
-    class TestEvent < StagingEvent
-      def initialize(*args)
-        super(*args)
-
-        @stage = :test
-        @start_time_attrs =  mr_metrics_table[:latest_build_started_at]
-        @end_time_attrs = mr_metrics_table[:latest_build_finished_at]
-      end
-    end
-  end
-end
diff --git a/lib/gitlab/cycle_analytics/test_event_fetcher.rb b/lib/gitlab/cycle_analytics/test_event_fetcher.rb
new file mode 100644
index 00000000000..a2589c6601a
--- /dev/null
+++ b/lib/gitlab/cycle_analytics/test_event_fetcher.rb
@@ -0,0 +1,6 @@
+module Gitlab
+  module CycleAnalytics
+    class TestEventFetcher < StagingEventFetcher
+    end
+  end
+end
diff --git a/lib/gitlab/cycle_analytics/test_stage.rb b/lib/gitlab/cycle_analytics/test_stage.rb
new file mode 100644
index 00000000000..0079d56e0e4
--- /dev/null
+++ b/lib/gitlab/cycle_analytics/test_stage.rb
@@ -0,0 +1,29 @@
+module Gitlab
+  module CycleAnalytics
+    class TestStage < BaseStage
+      def start_time_attrs
+        @start_time_attrs ||= mr_metrics_table[:latest_build_started_at]
+      end
+
+      def end_time_attrs
+        @end_time_attrs ||= mr_metrics_table[:latest_build_finished_at]
+      end
+
+      def name
+        :test
+      end
+
+      def description
+        "Total test time for all commits/merges"
+      end
+
+      def stage_query
+        if @options[:branch]
+          super.where(build_table[:ref].eq(@options[:branch]))
+        else
+          super
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/database/median.rb b/lib/gitlab/database/median.rb
index 1444d25ebc7..08607c27c09 100644
--- a/lib/gitlab/database/median.rb
+++ b/lib/gitlab/database/median.rb
@@ -103,6 +103,11 @@ module Gitlab
         Arel.sql(%Q{EXTRACT(EPOCH FROM "#{arel_attribute.relation.name}"."#{arel_attribute.name}")})
       end
 
+      def extract_diff_epoch(diff)
+        return diff unless Gitlab::Database.postgresql?
+
+        Arel.sql(%Q{EXTRACT(EPOCH FROM (#{diff.to_sql}))})
+      end
       # Need to cast '0' to an INTERVAL before we can check if the interval is positive
       def zero_interval
         Arel::Nodes::NamedFunction.new("CAST", [Arel.sql("'0' AS INTERVAL")])
diff --git a/lib/gitlab/git/blame.rb b/lib/gitlab/git/blame.rb
index 2913230e979..58193391926 100644
--- a/lib/gitlab/git/blame.rb
+++ b/lib/gitlab/git/blame.rb
@@ -1,5 +1,3 @@
-require_relative 'encoding_helper'
-
 module Gitlab
   module Git
     class Blame
diff --git a/lib/gitlab/git/blob.rb b/lib/gitlab/git/blob.rb
index 4a623311c14..b742d9e1e4b 100644
--- a/lib/gitlab/git/blob.rb
+++ b/lib/gitlab/git/blob.rb
@@ -1,6 +1,3 @@
-require_relative 'encoding_helper'
-require_relative 'path_helper'
-
 module Gitlab
   module Git
     class Blob
diff --git a/lib/gitlab/git/repository.rb b/lib/gitlab/git/repository.rb
index 79b23d59b3a..7068e68a855 100644
--- a/lib/gitlab/git/repository.rb
+++ b/lib/gitlab/git/repository.rb
@@ -1,6 +1,4 @@
 # Gitlab::Git::Repository is a wrapper around native Rugged::Repository object
-require_relative 'encoding_helper'
-require_relative 'path_helper'
 require 'forwardable'
 require 'tempfile'
 require 'forwardable'
diff --git a/lib/gitlab/import_export/import_export.yml b/lib/gitlab/import_export/import_export.yml
index e6ecd118609..08ad3274b38 100644
--- a/lib/gitlab/import_export/import_export.yml
+++ b/lib/gitlab/import_export/import_export.yml
@@ -6,6 +6,7 @@ project_tree:
     - :events
   - issues:
     - :events
+    - :timelogs
     - notes:
       - :author
       - :events
@@ -27,6 +28,7 @@ project_tree:
       - :events
     - :merge_request_diff
     - :events
+    - :timelogs
     - label_links:
       - label:
           :priorities
diff --git a/lib/gitlab/time_tracking_formatter.rb b/lib/gitlab/time_tracking_formatter.rb
new file mode 100644
index 00000000000..d615c24149a
--- /dev/null
+++ b/lib/gitlab/time_tracking_formatter.rb
@@ -0,0 +1,34 @@
+module Gitlab
+  module TimeTrackingFormatter
+    extend self
+
+    def parse(string)
+      with_custom_config do
+        string.sub!(/\A-/, '')
+
+        seconds = ChronicDuration.parse(string, default_unit: 'hours') rescue nil
+        seconds *= -1 if seconds && Regexp.last_match
+        seconds
+      end
+    end
+
+    def output(seconds)
+      with_custom_config do
+        ChronicDuration.output(seconds, format: :short, limit_to_hours: false, weeks: true) rescue nil
+      end
+    end
+
+    def with_custom_config
+      # We may want to configure it through project settings in a future version.
+      ChronicDuration.hours_per_day = 8
+      ChronicDuration.days_per_week = 5
+
+      result = yield
+
+      ChronicDuration.hours_per_day = 24
+      ChronicDuration.days_per_week = 7
+
+      result
+    end
+  end
+end
diff --git a/public/robots.txt b/public/robots.txt
index 7d69fad59d1..123272a9834 100644
--- a/public/robots.txt
+++ b/public/robots.txt
@@ -4,13 +4,12 @@
 # User-Agent: *
 # Disallow: /
 
-User-Agent: *
-
 # Add a 1 second delay between successive requests to the same server, limits resources used by crawler
 # Only some crawlers respect this setting, e.g. Googlebot does not
 # Crawl-delay: 1
 
 # Based on details in https://gitlab.com/gitlab-org/gitlab-ce/blob/master/config/routes.rb, https://gitlab.com/gitlab-org/gitlab-ce/blob/master/spec/routing, and using application
+User-Agent: *
 Disallow: /autocomplete/users
 Disallow: /search
 Disallow: /api
@@ -23,12 +22,14 @@ Disallow: /groups/*/edit
 Disallow: /users
 
 # Global snippets
+User-Agent: *
 Disallow: /s/
 Disallow: /snippets/new
 Disallow: /snippets/*/edit
 Disallow: /snippets/*/raw
 
 # Project details
+User-Agent: *
 Disallow: /*/*.git
 Disallow: /*/*/fork/new
 Disallow: /*/*/repository/archive*
diff --git a/spec/controllers/projects/compare_controller_spec.rb b/spec/controllers/projects/compare_controller_spec.rb
index 7a57801c437..b03c4b52de6 100644
--- a/spec/controllers/projects/compare_controller_spec.rb
+++ b/spec/controllers/projects/compare_controller_spec.rb
@@ -64,6 +64,36 @@ describe Projects::CompareController do
       expect(assigns(:diffs)).to eq(nil)
       expect(assigns(:commits)).to eq(nil)
     end
+
+    it 'redirects back to index when params[:from] is empty and preserves params[:to]' do
+      post(:create,
+           namespace_id: project.namespace.to_param,
+           project_id: project.to_param,
+           from: '',
+           to: 'master')
+
+      expect(response).to redirect_to(namespace_project_compare_index_path(project.namespace, project, to: 'master'))
+    end
+
+    it 'redirects back to index when params[:to] is empty and preserves params[:from]' do
+      post(:create,
+           namespace_id: project.namespace.to_param,
+           project_id: project.to_param,
+           from: 'master',
+           to: '')
+
+      expect(response).to redirect_to(namespace_project_compare_index_path(project.namespace, project, from: 'master'))
+    end
+
+    it 'redirects back to index when params[:from] and params[:to] are empty' do
+      post(:create,
+           namespace_id: project.namespace.to_param,
+           project_id: project.to_param,
+           from: '',
+           to: '')
+
+      expect(response).to redirect_to(namespace_project_compare_index_path)
+    end
   end
 
   describe 'GET diff_for_path' do
diff --git a/spec/controllers/projects/issues_controller_spec.rb b/spec/controllers/projects/issues_controller_spec.rb
index e2321f2034b..b5987a83df0 100644
--- a/spec/controllers/projects/issues_controller_spec.rb
+++ b/spec/controllers/projects/issues_controller_spec.rb
@@ -326,6 +326,20 @@ describe Projects::IssuesController do
   end
 
   describe 'POST #create' do
+    def post_new_issue(attrs = {})
+      sign_in(user)
+      project = create(:empty_project, :public)
+      project.team << [user, :developer]
+
+      post :create, {
+        namespace_id: project.namespace.to_param,
+        project_id: project.to_param,
+        issue: { title: 'Title', description: 'Description' }.merge(attrs)
+      }
+
+      project.issues.first
+    end
+
     context 'resolving discussions in MergeRequest' do
       let(:discussion) { Discussion.for_diff_notes([create(:diff_note_on_merge_request)]).first }
       let(:merge_request) { discussion.noteable }
@@ -369,13 +383,7 @@ describe Projects::IssuesController do
       end
 
       def post_spam_issue
-        sign_in(user)
-        spam_project = create(:empty_project, :public)
-        post :create, {
-          namespace_id: spam_project.namespace.to_param,
-          project_id: spam_project.to_param,
-          issue: { title: 'Spam Title', description: 'Spam lives here' }
-        }
+        post_new_issue(title: 'Spam Title', description: 'Spam lives here')
       end
 
       it 'rejects an issue recognized as spam' do
@@ -396,18 +404,26 @@ describe Projects::IssuesController do
         request.env['action_dispatch.remote_ip'] = '127.0.0.1'
       end
 
-      def post_new_issue
+      it 'creates a user agent detail' do
+        expect{ post_new_issue }.to change(UserAgentDetail, :count).by(1)
+      end
+    end
+
+    context 'when description has slash commands' do
+      before do
         sign_in(user)
-        project = create(:empty_project, :public)
-        post :create, {
-          namespace_id: project.namespace.to_param,
-          project_id: project.to_param,
-          issue: { title: 'Title', description: 'Description' }
-        }
       end
 
-      it 'creates a user agent detail' do
-        expect{ post_new_issue }.to change(UserAgentDetail, :count).by(1)
+      it 'can add spent time' do
+        issue = post_new_issue(description: '/spend 1h')
+
+        expect(issue.total_time_spent).to eq(3600)
+      end
+
+      it 'can set the time estimate' do
+        issue = post_new_issue(description: '/estimate 2h')
+
+        expect(issue.time_estimate).to eq(7200)
       end
     end
   end
diff --git a/spec/controllers/projects/merge_requests_controller_spec.rb b/spec/controllers/projects/merge_requests_controller_spec.rb
index 2a411d78395..7ea3ea4f376 100644
--- a/spec/controllers/projects/merge_requests_controller_spec.rb
+++ b/spec/controllers/projects/merge_requests_controller_spec.rb
@@ -1048,4 +1048,72 @@ describe Projects::MergeRequestsController do
       end
     end
   end
+
+  describe 'GET merge_widget_refresh' do
+    let(:params) do
+      {
+        namespace_id: project.namespace.path,
+        project_id: project.path,
+        id: merge_request.iid,
+        format: :raw
+      }
+    end
+
+    before do
+      project.team << [user, :developer]
+      xhr :get, :merge_widget_refresh, params
+    end
+
+    context 'when merge in progress' do
+      let(:merge_request) { create(:merge_request, source_project: project, in_progress_merge_commit_sha: 'sha') }
+
+      it 'returns an OK response' do
+        expect(response).to have_http_status(:ok)
+      end
+
+      it 'sets status to :success' do
+        expect(assigns(:status)).to eq(:success)
+        expect(response).to render_template('merge')
+      end
+    end
+
+    context 'when merge request was merged already' do
+      let(:merge_request) { create(:merge_request, source_project: project, state: :merged) }
+
+      it 'returns an OK response' do
+        expect(response).to have_http_status(:ok)
+      end
+
+      it 'sets status to :success' do
+        expect(assigns(:status)).to eq(:success)
+        expect(response).to render_template('merge')
+      end
+    end
+
+    context 'when waiting for build' do
+      let(:merge_request) { create(:merge_request, source_project: project, merge_when_build_succeeds: true, merge_user: user) }
+
+      it 'returns an OK response' do
+        expect(response).to have_http_status(:ok)
+      end
+
+      it 'sets status to :merge_when_build_succeeds' do
+        expect(assigns(:status)).to eq(:merge_when_build_succeeds)
+        expect(response).to render_template('merge')
+      end
+    end
+
+    context 'when no special status for MR' do
+      let(:merge_request) { create(:merge_request, source_project: project) }
+
+      it 'returns an OK response' do
+        expect(response).to have_http_status(:ok)
+      end
+
+      it 'sets status to nil' do
+        expect(assigns(:status)).to be_nil
+        expect(response).to render_template('merge')
+      end
+    end
+  end
 end
diff --git a/spec/controllers/projects/notes_controller_spec.rb b/spec/controllers/projects/notes_controller_spec.rb
index 92e38b02615..9f6d4ec6537 100644
--- a/spec/controllers/projects/notes_controller_spec.rb
+++ b/spec/controllers/projects/notes_controller_spec.rb
@@ -14,6 +14,54 @@ describe Projects::NotesController do
     }
   end
 
+  describe 'POST create' do
+    let(:merge_request) { create(:merge_request) }
+    let(:request_params) do
+      {
+        note: { note: 'some note', noteable_id: merge_request.id, noteable_type: 'MergeRequest' },
+        namespace_id: project.namespace,
+        project_id: project,
+        merge_request_diff_head_sha: 'sha'
+      }
+    end
+
+    before do
+      sign_in(user)
+      project.team << [user, :developer]
+    end
+
+    it "returns status 302 for html" do
+      post :create, request_params
+
+      expect(response).to have_http_status(302)
+    end
+
+    it "returns status 200 for json" do
+      post :create, request_params.merge(format: :json)
+
+      expect(response).to have_http_status(200)
+    end
+
+    context 'when merge_request_diff_head_sha present' do
+      before do
+        service_params = {
+          note: 'some note',
+          noteable_id: merge_request.id.to_s,
+          noteable_type: 'MergeRequest',
+          merge_request_diff_head_sha: 'sha'
+        }
+
+        expect(Notes::CreateService).to receive(:new).with(project, user, service_params).and_return(double(execute: true))
+      end
+
+      it "returns status 302 for html" do
+        post :create, request_params
+
+        expect(response).to have_http_status(302)
+      end
+    end
+  end
+
   describe 'POST toggle_award_emoji' do
     before do
       sign_in(user)
diff --git a/spec/factories/projects.rb b/spec/factories/projects.rb
index 1cdbe4fc9a5..992580a6b34 100644
--- a/spec/factories/projects.rb
+++ b/spec/factories/projects.rb
@@ -32,6 +32,10 @@ FactoryGirl.define do
       request_access_enabled true
     end
 
+    trait :repository do
+      # no-op... for now!
+    end
+
     trait :empty_repo do
       after(:create) do |project|
         project.create_repository
diff --git a/spec/factories/timelogs.rb b/spec/factories/timelogs.rb
new file mode 100644
index 00000000000..12fc4ec4486
--- /dev/null
+++ b/spec/factories/timelogs.rb
@@ -0,0 +1,9 @@
+# Read about factories at https://github.com/thoughtbot/factory_girl
+
+FactoryGirl.define do
+  factory :timelog do
+    time_spent 3600
+    user
+    association :trackable, factory: :issue
+  end
+end
diff --git a/spec/features/issues/user_uses_slash_commands_spec.rb b/spec/features/issues/user_uses_slash_commands_spec.rb
index 31f75512f4a..0a9cd11ad6e 100644
--- a/spec/features/issues/user_uses_slash_commands_spec.rb
+++ b/spec/features/issues/user_uses_slash_commands_spec.rb
@@ -100,6 +100,58 @@ feature 'Issues > User uses slash commands', feature: true, js: true do
       end
     end
 
+    describe 'Issuable time tracking' do
+      let(:issue) { create(:issue, project: project) }
+
+      before do
+        project.team << [user, :developer]
+      end
+
+      context 'Issue' do
+        before do
+          visit namespace_project_issue_path(project.namespace, project, issue)
+        end
+
+        it_behaves_like 'issuable time tracker'
+      end
+
+      context 'Merge Request' do
+        let(:merge_request) { create(:merge_request, source_project: project) }
+
+        before do
+          visit namespace_project_merge_request_path(project.namespace, project, merge_request)
+        end
+
+        it_behaves_like 'issuable time tracker'
+      end
+    end
+
+    describe 'Issuable time tracking' do
+      let(:issue) { create(:issue, project: project) }
+
+      before do
+        project.team << [user, :developer]
+      end
+
+      context 'Issue' do
+        before do
+          visit namespace_project_issue_path(project.namespace, project, issue)
+        end
+
+        it_behaves_like 'issuable time tracker'
+      end
+
+      context 'Merge Request' do
+        let(:merge_request) { create(:merge_request, source_project: project) }
+
+        before do
+          visit namespace_project_merge_request_path(project.namespace, project, merge_request)
+        end
+
+        it_behaves_like 'issuable time tracker'
+      end
+    end
+
     describe 'toggling the WIP prefix from the title from note' do
       let(:issue) { create(:issue, project: project) }
 
diff --git a/spec/features/merge_requests/diffs_spec.rb b/spec/features/merge_requests/diffs_spec.rb
index c9a0059645d..4a6c76a5caf 100644
--- a/spec/features/merge_requests/diffs_spec.rb
+++ b/spec/features/merge_requests/diffs_spec.rb
@@ -22,4 +22,18 @@ feature 'Diffs URL', js: true, feature: true do
       expect(page).to have_css('.diffs.tab-pane.active')
     end
   end
+
+  context 'when merge request has overflow' do
+    it 'displays warning' do
+      allow_any_instance_of(MergeRequestDiff).to receive(:overflow?).and_return(true)
+      allow(Commit).to receive(:max_diff_options).and_return(max_files: 20, max_lines: 20)
+
+      visit diffs_namespace_project_merge_request_path(@project.namespace, @project, @merge_request)
+
+      page.within('.alert') do
+        expect(page).to have_text("Too many changes to show. Plain diff Email patch To preserve
+          performance only 3 of 3+ files are displayed.")
+      end
+    end
+  end
 end
diff --git a/spec/features/merge_requests/user_uses_slash_commands_spec.rb b/spec/features/merge_requests/user_uses_slash_commands_spec.rb
index b1b3a47a1ce..b13674b4db9 100644
--- a/spec/features/merge_requests/user_uses_slash_commands_spec.rb
+++ b/spec/features/merge_requests/user_uses_slash_commands_spec.rb
@@ -68,6 +68,51 @@ feature 'Merge Requests > User uses slash commands', feature: true, js: true do
       end
     end
 
+    describe 'merging the MR from the note' do
+      context 'when the current user can merge the MR' do
+        it 'merges the MR' do
+          write_note("/merge")
+
+          expect(page).to have_content 'Commands applied'
+
+          expect(merge_request.reload).to be_merged
+        end
+      end
+
+      context 'when the head diff changes in the meanwhile' do
+        before do
+          merge_request.source_branch = 'another_branch'
+          merge_request.save
+        end
+
+        it 'does not merge the MR' do
+          write_note("/merge")
+
+          expect(page).not_to have_content 'Your commands have been executed!'
+
+          expect(merge_request.reload).not_to be_merged
+        end
+      end
+
+      context 'when the current user cannot merge the MR' do
+        let(:guest) { create(:user) }
+        before do
+          project.team << [guest, :guest]
+          logout
+          login_with(guest)
+          visit namespace_project_merge_request_path(project.namespace, project, merge_request)
+        end
+
+        it 'does not merge the MR' do
+          write_note("/merge")
+
+          expect(page).not_to have_content 'Your commands have been executed!'
+
+          expect(merge_request.reload).not_to be_merged
+        end
+      end
+    end
+
     describe 'adding a due date from note' do
       it 'does not recognize the command nor create a note' do
         write_note('/due 2016-08-28')
diff --git a/spec/features/projects/builds_spec.rb b/spec/features/projects/builds_spec.rb
index 8c4d4320dc5..11d27feab0b 100644
--- a/spec/features/projects/builds_spec.rb
+++ b/spec/features/projects/builds_spec.rb
@@ -3,6 +3,7 @@ require 'tempfile'
 
 feature 'Builds', :feature do
   let(:user) { create(:user) }
+  let(:user_access_level) { :developer }
   let(:project) { create(:project) }
   let(:pipeline) { create(:ci_pipeline, project: project) }
 
@@ -14,7 +15,7 @@ feature 'Builds', :feature do
   end
 
   before do
-    project.team << [user, :developer]
+    project.team << [user, user_access_level]
     login_as(user)
   end
 
@@ -131,7 +132,9 @@ feature 'Builds', :feature do
 
     context 'Artifacts expire date' do
       before do
-        build.update_attributes(artifacts_file: artifacts_file, artifacts_expire_at: expire_at)
+        build.update_attributes(artifacts_file: artifacts_file,
+                                artifacts_expire_at: expire_at)
+
         visit namespace_project_build_path(project.namespace, project, build)
       end
 
@@ -146,12 +149,23 @@ feature 'Builds', :feature do
       context 'when expire date is defined' do
         let(:expire_at) { Time.now + 7.days }
 
-        it 'keeps artifacts when Keep button is clicked' do
-          expect(page).to have_content 'The artifacts will be removed'
-          click_link 'Keep'
+        context 'when user has ability to update build' do
+          it 'keeps artifacts when keep button is clicked' do
+            expect(page).to have_content 'The artifacts will be removed'
 
-          expect(page).not_to have_link 'Keep'
-          expect(page).not_to have_content 'The artifacts will be removed'
+            click_link 'Keep'
+
+            expect(page).to have_no_link 'Keep'
+            expect(page).to have_no_content 'The artifacts will be removed'
+          end
+        end
+
+        context 'when user does not have ability to update build' do
+          let(:user_access_level) { :guest }
+
+          it 'does not have keep button' do
+            expect(page).to have_no_link 'Keep'
+          end
         end
       end
 
diff --git a/spec/helpers/merge_requests_helper_spec.rb b/spec/helpers/merge_requests_helper_spec.rb
index 903224589dd..1f221487393 100644
--- a/spec/helpers/merge_requests_helper_spec.rb
+++ b/spec/helpers/merge_requests_helper_spec.rb
@@ -62,4 +62,19 @@ describe MergeRequestsHelper do
       it { is_expected.to eq([source_title, target_title]) }
     end
   end
+
+  describe 'mr_widget_refresh_url' do
+    let(:merge_request) { create(:merge_request, source_project: project) }
+    let(:project)       { create(:project) }
+
+    it 'returns correct url for MR' do
+      expected_url = "#{project.path_with_namespace}/merge_requests/#{merge_request.iid}/merge_widget_refresh"
+
+      expect(mr_widget_refresh_url(merge_request)).to end_with(expected_url)
+    end
+
+    it 'returns empty string for nil' do
+      expect(mr_widget_refresh_url(nil)).to end_with('')
+    end
+  end
 end
diff --git a/spec/javascripts/issuable_time_tracker_spec.js.es6 b/spec/javascripts/issuable_time_tracker_spec.js.es6
new file mode 100644
index 00000000000..cb068a4f879
--- /dev/null
+++ b/spec/javascripts/issuable_time_tracker_spec.js.es6
@@ -0,0 +1,202 @@
+/* eslint-disable */
+
+require('jquery');
+require('vue');
+require('~/issuable/time_tracking/components/time_tracker');
+
+function initTimeTrackingComponent(opts) {
+  setFixtures(`
+    <div>
+      <div id="mock-container"></div>
+    </div>
+  `);
+
+  this.initialData = {
+    time_estimate: opts.timeEstimate,
+    time_spent: opts.timeSpent,
+    human_time_estimate: opts.timeEstimateHumanReadable,
+    human_time_spent: opts.timeSpentHumanReadable,
+    docsUrl: '/help/workflow/time_tracking.md',
+  };
+
+  const TimeTrackingComponent = Vue.component('issuable-time-tracker');
+  this.timeTracker = new TimeTrackingComponent({
+    el: '#mock-container',
+    propsData: this.initialData,
+  });
+}
+
+((gl) => {
+  describe('Issuable Time Tracker', function() {
+    describe('Initialization', function() {
+      beforeEach(function() {
+        initTimeTrackingComponent.call(this, { timeEstimate: 100000, timeSpent: 5000, timeEstimateHumanReadable: '2h 46m', timeSpentHumanReadable: '1h 23m' });
+      });
+
+      it('should return something defined', function() {
+        expect(this.timeTracker).toBeDefined();
+      });
+
+      it ('should correctly set timeEstimate', function(done) {
+        Vue.nextTick(() => {
+          expect(this.timeTracker.timeEstimate).toBe(this.initialData.time_estimate);
+          done();
+        });
+      });
+      it ('should correctly set time_spent', function(done) {
+        Vue.nextTick(() => {
+          expect(this.timeTracker.timeSpent).toBe(this.initialData.time_spent);
+          done();
+        });
+      });
+    });
+
+    describe('Content Display', function() {
+      describe('Panes', function() {
+        describe('Comparison pane', function() {
+          beforeEach(function() {
+            initTimeTrackingComponent.call(this, { timeEstimate: 100000, timeSpent: 5000, timeEstimateHumanReadable: '', timeSpentHumanReadable: '' });
+          });
+
+          it('should show the "Comparison" pane when timeEstimate and time_spent are truthy', function(done) {
+            Vue.nextTick(() => {
+              const $comparisonPane = this.timeTracker.$el.querySelector('.time-tracking-comparison-pane');
+              expect(this.timeTracker.showComparisonState).toBe(true);
+              done();
+            });
+          });
+
+          describe('Remaining meter', function() {
+            it('should display the remaining meter with the correct width', function(done) {
+              Vue.nextTick(() => {
+                const meterWidth = this.timeTracker.$el.querySelector('.time-tracking-comparison-pane .meter-fill').style.width;
+                const correctWidth = '5%';
+
+                expect(meterWidth).toBe(correctWidth);
+                done();
+              })
+            });
+
+            it('should display the remaining meter with the correct background color when within estimate', function(done) {
+              Vue.nextTick(() => {
+                const styledMeter = $(this.timeTracker.$el).find('.time-tracking-comparison-pane .within_estimate .meter-fill');
+                expect(styledMeter.length).toBe(1);
+                done()
+              });
+            });
+
+            it('should display the remaining meter with the correct background color when over estimate', function(done) {
+              this.timeTracker.time_estimate = 100000;
+              this.timeTracker.time_spent = 20000000;
+              Vue.nextTick(() => {
+                const styledMeter = $(this.timeTracker.$el).find('.time-tracking-comparison-pane .over_estimate .meter-fill');
+                expect(styledMeter.length).toBe(1);
+                done();
+              });
+            });
+          });
+        });
+
+        describe("Estimate only pane", function() {
+          beforeEach(function() {
+            initTimeTrackingComponent.call(this, { timeEstimate: 100000, timeSpent: 0, timeEstimateHumanReadable: '2h 46m', timeSpentHumanReadable: '' });
+          });
+
+          it('should display the human readable version of time estimated', function(done) {
+            Vue.nextTick(() => {
+              const estimateText = this.timeTracker.$el.querySelector('.time-tracking-estimate-only-pane').innerText;
+              const correctText = 'Estimated: 2h 46m';
+
+              expect(estimateText).toBe(correctText);
+              done();
+            });
+          });
+        });
+
+        describe('Spent only pane', function() {
+          beforeEach(function() {
+            initTimeTrackingComponent.call(this, { timeEstimate: 0, timeSpent: 5000, timeEstimateHumanReadable: '2h 46m', timeSpentHumanReadable: '1h 23m' });
+          });
+
+          it('should display the human readable version of time spent', function(done) {
+            Vue.nextTick(() => {
+              const spentText = this.timeTracker.$el.querySelector('.time-tracking-spend-only-pane').innerText;
+              const correctText = 'Spent: 1h 23m';
+
+              expect(spentText).toBe(correctText);
+              done();
+            });
+          });
+        });
+
+        describe('No time tracking pane', function() {
+          beforeEach(function() {
+            initTimeTrackingComponent.call(this, { timeEstimate: 0, timeSpent: 0, timeEstimateHumanReadable: 0, timeSpentHumanReadable: 0 });
+          });
+
+          it('should only show the "No time tracking" pane when both timeEstimate and time_spent are falsey', function(done) {
+            Vue.nextTick(() => {
+              const $noTrackingPane = this.timeTracker.$el.querySelector('.time-tracking-no-tracking-pane');
+              const noTrackingText =$noTrackingPane.innerText;
+              const correctText = 'No estimate or time spent';
+
+              expect(this.timeTracker.showNoTimeTrackingState).toBe(true);
+              expect($noTrackingPane).toBeVisible();
+              expect(noTrackingText).toBe(correctText);
+              done();
+            });
+          });
+        });
+
+        describe("Help pane", function() {
+          beforeEach(function() {
+            initTimeTrackingComponent.call(this, { timeEstimate: 0, timeSpent: 0 });
+          });
+
+          it('should not show the "Help" pane by default', function(done) {
+            Vue.nextTick(() => {
+              const $helpPane = this.timeTracker.$el.querySelector('.time-tracking-help-state');
+
+              expect(this.timeTracker.showHelpState).toBe(false);
+              expect($helpPane).toBeNull();
+              done();
+            });
+          });
+
+          it('should show the "Help" pane when help button is clicked', function(done) {
+            Vue.nextTick(() => {
+              $(this.timeTracker.$el).find('.help-button').click();
+
+              setTimeout(() => {
+                const $helpPane = this.timeTracker.$el.querySelector('.time-tracking-help-state');
+                expect(this.timeTracker.showHelpState).toBe(true);
+                expect($helpPane).toBeVisible();
+                done();
+              }, 10);
+            });
+          });
+
+          it('should not show the "Help" pane when help button is clicked and then closed', function(done) {
+            Vue.nextTick(() => {
+              $(this.timeTracker.$el).find('.help-button').click();
+
+              setTimeout(() => {
+
+                $(this.timeTracker.$el).find('.close-help-button').click();
+
+                setTimeout(() => {
+                  const $helpPane = this.timeTracker.$el.querySelector('.time-tracking-help-state');
+
+                  expect(this.timeTracker.showHelpState).toBe(false);
+                  expect($helpPane).toBeNull();
+
+                  done();
+                }, 1000);
+              }, 1000);
+            });
+          });
+        });
+      });
+    });
+  });
+})(window.gl || (window.gl = {}));
diff --git a/spec/javascripts/pretty_time_spec.js.es6 b/spec/javascripts/pretty_time_spec.js.es6
index fe5317e05b1..a4662cfb557 100644
--- a/spec/javascripts/pretty_time_spec.js.es6
+++ b/spec/javascripts/pretty_time_spec.js.es6
@@ -1,12 +1,12 @@
 require('~/lib/utils/pretty_time');
 
 (() => {
-  const PrettyTime = gl.PrettyTime;
+  const prettyTime = gl.utils.prettyTime;
 
-  describe('PrettyTime methods', function () {
+  describe('prettyTime methods', function () {
     describe('parseSeconds', function () {
       it('should correctly parse a negative value', function () {
-        const parser = PrettyTime.parseSeconds;
+        const parser = prettyTime.parseSeconds;
 
         const zeroSeconds = parser(-1000);
 
@@ -17,7 +17,7 @@ require('~/lib/utils/pretty_time');
       });
 
       it('should correctly parse a zero value', function () {
-        const parser = PrettyTime.parseSeconds;
+        const parser = prettyTime.parseSeconds;
 
         const zeroSeconds = parser(0);
 
@@ -28,7 +28,7 @@ require('~/lib/utils/pretty_time');
       });
 
       it('should correctly parse a small non-zero second values', function () {
-        const parser = PrettyTime.parseSeconds;
+        const parser = prettyTime.parseSeconds;
 
         const subOneMinute = parser(10);
 
@@ -53,7 +53,7 @@ require('~/lib/utils/pretty_time');
       });
 
       it('should correctly parse large second values', function () {
-        const parser = PrettyTime.parseSeconds;
+        const parser = prettyTime.parseSeconds;
 
         const aboveOneHour = parser(4800);
 
@@ -87,7 +87,7 @@ require('~/lib/utils/pretty_time');
           minutes: 20,
         };
 
-        const timeString = PrettyTime.stringifyTime(timeObject);
+        const timeString = prettyTime.stringifyTime(timeObject);
 
         expect(timeString).toBe('1w 4d 7h 20m');
       });
@@ -100,7 +100,7 @@ require('~/lib/utils/pretty_time');
           minutes: 20,
         };
 
-        const timeString = PrettyTime.stringifyTime(timeObject);
+        const timeString = prettyTime.stringifyTime(timeObject);
 
         expect(timeString).toBe('4d 20m');
       });
@@ -113,7 +113,7 @@ require('~/lib/utils/pretty_time');
           minutes: 0,
         };
 
-        const timeString = PrettyTime.stringifyTime(timeObject);
+        const timeString = prettyTime.stringifyTime(timeObject);
 
         expect(timeString).toBe('0m');
       });
@@ -122,12 +122,12 @@ require('~/lib/utils/pretty_time');
     describe('abbreviateTime', function () {
       it('should abbreviate stringified times for weeks', function () {
         const fullTimeString = '1w 3d 4h 5m';
-        expect(PrettyTime.abbreviateTime(fullTimeString)).toBe('1w');
+        expect(prettyTime.abbreviateTime(fullTimeString)).toBe('1w');
       });
 
       it('should abbreviate stringified times for non-weeks', function () {
         const fullTimeString = '0w 3d 4h 5m';
-        expect(PrettyTime.abbreviateTime(fullTimeString)).toBe('3d');
+        expect(prettyTime.abbreviateTime(fullTimeString)).toBe('3d');
       });
     });
   });
diff --git a/spec/lib/gitlab/cycle_analytics/code_event_fetcher_spec.rb b/spec/lib/gitlab/cycle_analytics/code_event_fetcher_spec.rb
new file mode 100644
index 00000000000..0267e8c2f69
--- /dev/null
+++ b/spec/lib/gitlab/cycle_analytics/code_event_fetcher_spec.rb
@@ -0,0 +1,12 @@
+require 'spec_helper'
+require 'lib/gitlab/cycle_analytics/shared_event_spec'
+
+describe Gitlab::CycleAnalytics::CodeEventFetcher do
+  let(:stage_name) { :code }
+
+  it_behaves_like 'default query config' do
+    it 'has a default order' do
+      expect(event.order).not_to be_nil
+    end
+  end
+end
diff --git a/spec/lib/gitlab/cycle_analytics/code_event_spec.rb b/spec/lib/gitlab/cycle_analytics/code_event_spec.rb
deleted file mode 100644
index 43f42d1bde8..00000000000
--- a/spec/lib/gitlab/cycle_analytics/code_event_spec.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-require 'spec_helper'
-require 'lib/gitlab/cycle_analytics/shared_event_spec'
-
-describe Gitlab::CycleAnalytics::CodeEvent do
-  it_behaves_like 'default query config' do
-    it 'does not have the default order' do
-      expect(event.order).not_to eq(event.start_time_attrs)
-    end
-  end
-end
diff --git a/spec/lib/gitlab/cycle_analytics/code_stage_spec.rb b/spec/lib/gitlab/cycle_analytics/code_stage_spec.rb
new file mode 100644
index 00000000000..e8fc67acf05
--- /dev/null
+++ b/spec/lib/gitlab/cycle_analytics/code_stage_spec.rb
@@ -0,0 +1,8 @@
+require 'spec_helper'
+require 'lib/gitlab/cycle_analytics/shared_stage_spec'
+
+describe Gitlab::CycleAnalytics::CodeStage do
+  let(:stage_name) { :code }
+
+  it_behaves_like 'base stage'
+end
diff --git a/spec/lib/gitlab/cycle_analytics/events_spec.rb b/spec/lib/gitlab/cycle_analytics/events_spec.rb
index 6062e7af4f5..9d2ba481919 100644
--- a/spec/lib/gitlab/cycle_analytics/events_spec.rb
+++ b/spec/lib/gitlab/cycle_analytics/events_spec.rb
@@ -1,12 +1,14 @@
 require 'spec_helper'
 
-describe Gitlab::CycleAnalytics::Events do
+describe 'cycle analytics events' do
   let(:project) { create(:project) }
   let(:from_date) { 10.days.ago }
   let(:user) { create(:user, :admin) }
   let!(:context) { create(:issue, project: project, created_at: 2.days.ago) }
 
-  subject { described_class.new(project: project, options: { from: from_date, current_user: user }) }
+  let(:events) do
+    CycleAnalytics.new(project, { from: from_date, current_user: user })[stage].events
+  end
 
   before do
     allow_any_instance_of(Gitlab::ReferenceExtractor).to receive(:issues).and_return([context])
@@ -15,104 +17,112 @@ describe Gitlab::CycleAnalytics::Events do
   end
 
   describe '#issue_events' do
+    let(:stage) { :issue }
+
     it 'has the total time' do
-      expect(subject.issue_events.first[:total_time]).not_to be_empty
+      expect(events.first[:total_time]).not_to be_empty
     end
 
     it 'has a title' do
-      expect(subject.issue_events.first[:title]).to eq(context.title)
+      expect(events.first[:title]).to eq(context.title)
     end
 
     it 'has the URL' do
-      expect(subject.issue_events.first[:url]).not_to be_nil
+      expect(events.first[:url]).not_to be_nil
     end
 
     it 'has an iid' do
-      expect(subject.issue_events.first[:iid]).to eq(context.iid.to_s)
+      expect(events.first[:iid]).to eq(context.iid.to_s)
     end
 
     it 'has a created_at timestamp' do
-      expect(subject.issue_events.first[:created_at]).to end_with('ago')
+      expect(events.first[:created_at]).to end_with('ago')
     end
 
     it "has the author's URL" do
-      expect(subject.issue_events.first[:author][:web_url]).not_to be_nil
+      expect(events.first[:author][:web_url]).not_to be_nil
     end
 
     it "has the author's avatar URL" do
-      expect(subject.issue_events.first[:author][:avatar_url]).not_to be_nil
+      expect(events.first[:author][:avatar_url]).not_to be_nil
     end
 
     it "has the author's name" do
-      expect(subject.issue_events.first[:author][:name]).to eq(context.author.name)
+      expect(events.first[:author][:name]).to eq(context.author.name)
     end
   end
 
   describe '#plan_events' do
+    let(:stage) { :plan }
+
     it 'has a title' do
-      expect(subject.plan_events.first[:title]).not_to be_nil
+      expect(events.first[:title]).not_to be_nil
     end
 
     it 'has a sha short ID' do
-      expect(subject.plan_events.first[:short_sha]).not_to be_nil
+      expect(events.first[:short_sha]).not_to be_nil
     end
 
     it 'has the URL' do
-      expect(subject.plan_events.first[:commit_url]).not_to be_nil
+      expect(events.first[:commit_url]).not_to be_nil
     end
 
     it 'has the total time' do
-      expect(subject.plan_events.first[:total_time]).not_to be_empty
+      expect(events.first[:total_time]).not_to be_empty
     end
 
     it "has the author's URL" do
-      expect(subject.plan_events.first[:author][:web_url]).not_to be_nil
+      expect(events.first[:author][:web_url]).not_to be_nil
     end
 
     it "has the author's avatar URL" do
-      expect(subject.plan_events.first[:author][:avatar_url]).not_to be_nil
+      expect(events.first[:author][:avatar_url]).not_to be_nil
     end
 
     it "has the author's name" do
-      expect(subject.plan_events.first[:author][:name]).not_to be_nil
+      expect(events.first[:author][:name]).not_to be_nil
     end
   end
 
   describe '#code_events' do
+    let(:stage) { :code }
+
     before do
       create_commit_referencing_issue(context)
     end
 
     it 'has the total time' do
-      expect(subject.code_events.first[:total_time]).not_to be_empty
+      expect(events.first[:total_time]).not_to be_empty
     end
 
     it 'has a title' do
-      expect(subject.code_events.first[:title]).to eq('Awesome merge_request')
+      expect(events.first[:title]).to eq('Awesome merge_request')
     end
 
     it 'has an iid' do
-      expect(subject.code_events.first[:iid]).to eq(context.iid.to_s)
+      expect(events.first[:iid]).to eq(context.iid.to_s)
     end
 
     it 'has a created_at timestamp' do
-      expect(subject.code_events.first[:created_at]).to end_with('ago')
+      expect(events.first[:created_at]).to end_with('ago')
     end
 
     it "has the author's URL" do
-      expect(subject.code_events.first[:author][:web_url]).not_to be_nil
+      expect(events.first[:author][:web_url]).not_to be_nil
     end
 
     it "has the author's avatar URL" do
-      expect(subject.code_events.first[:author][:avatar_url]).not_to be_nil
+      expect(events.first[:author][:avatar_url]).not_to be_nil
     end
 
     it "has the author's name" do
-      expect(subject.code_events.first[:author][:name]).to eq(MergeRequest.first.author.name)
+      expect(events.first[:author][:name]).to eq(MergeRequest.first.author.name)
     end
   end
 
   describe '#test_events' do
+    let(:stage) { :test }
+
     let(:merge_request) { MergeRequest.first }
     let!(:pipeline) do
       create(:ci_pipeline,
@@ -130,83 +140,85 @@ describe Gitlab::CycleAnalytics::Events do
     end
 
     it 'has the name' do
-      expect(subject.test_events.first[:name]).not_to be_nil
+      expect(events.first[:name]).not_to be_nil
     end
 
     it 'has the ID' do
-      expect(subject.test_events.first[:id]).not_to be_nil
+      expect(events.first[:id]).not_to be_nil
     end
 
     it 'has the URL' do
-      expect(subject.test_events.first[:url]).not_to be_nil
+      expect(events.first[:url]).not_to be_nil
     end
 
     it 'has the branch name' do
-      expect(subject.test_events.first[:branch]).not_to be_nil
+      expect(events.first[:branch]).not_to be_nil
     end
 
     it 'has the branch URL' do
-      expect(subject.test_events.first[:branch][:url]).not_to be_nil
+      expect(events.first[:branch][:url]).not_to be_nil
     end
 
     it 'has the short SHA' do
-      expect(subject.test_events.first[:short_sha]).not_to be_nil
+      expect(events.first[:short_sha]).not_to be_nil
     end
 
     it 'has the commit URL' do
-      expect(subject.test_events.first[:commit_url]).not_to be_nil
+      expect(events.first[:commit_url]).not_to be_nil
     end
 
     it 'has the date' do
-      expect(subject.test_events.first[:date]).not_to be_nil
+      expect(events.first[:date]).not_to be_nil
     end
 
     it 'has the total time' do
-      expect(subject.test_events.first[:total_time]).not_to be_empty
+      expect(events.first[:total_time]).not_to be_empty
     end
   end
 
   describe '#review_events' do
+    let(:stage) { :review }
     let!(:context) { create(:issue, project: project, created_at: 2.days.ago) }
 
     it 'has the total time' do
-      expect(subject.review_events.first[:total_time]).not_to be_empty
+      expect(events.first[:total_time]).not_to be_empty
     end
 
     it 'has a title' do
-      expect(subject.review_events.first[:title]).to eq('Awesome merge_request')
+      expect(events.first[:title]).to eq('Awesome merge_request')
     end
 
     it 'has an iid' do
-      expect(subject.review_events.first[:iid]).to eq(context.iid.to_s)
+      expect(events.first[:iid]).to eq(context.iid.to_s)
     end
 
     it 'has the URL' do
-      expect(subject.review_events.first[:url]).not_to be_nil
+      expect(events.first[:url]).not_to be_nil
     end
 
     it 'has a state' do
-      expect(subject.review_events.first[:state]).not_to be_nil
+      expect(events.first[:state]).not_to be_nil
     end
 
     it 'has a created_at timestamp' do
-      expect(subject.review_events.first[:created_at]).not_to be_nil
+      expect(events.first[:created_at]).not_to be_nil
     end
 
     it "has the author's URL" do
-      expect(subject.review_events.first[:author][:web_url]).not_to be_nil
+      expect(events.first[:author][:web_url]).not_to be_nil
     end
 
     it "has the author's avatar URL" do
-      expect(subject.review_events.first[:author][:avatar_url]).not_to be_nil
+      expect(events.first[:author][:avatar_url]).not_to be_nil
     end
 
     it "has the author's name" do
-      expect(subject.review_events.first[:author][:name]).to eq(MergeRequest.first.author.name)
+      expect(events.first[:author][:name]).to eq(MergeRequest.first.author.name)
     end
   end
 
   describe '#staging_events' do
+    let(:stage) { :staging }
     let(:merge_request) { MergeRequest.first }
     let!(:pipeline) do
       create(:ci_pipeline,
@@ -227,55 +239,56 @@ describe Gitlab::CycleAnalytics::Events do
     end
 
     it 'has the name' do
-      expect(subject.staging_events.first[:name]).not_to be_nil
+      expect(events.first[:name]).not_to be_nil
     end
 
     it 'has the ID' do
-      expect(subject.staging_events.first[:id]).not_to be_nil
+      expect(events.first[:id]).not_to be_nil
     end
 
     it 'has the URL' do
-      expect(subject.staging_events.first[:url]).not_to be_nil
+      expect(events.first[:url]).not_to be_nil
     end
 
     it 'has the branch name' do
-      expect(subject.staging_events.first[:branch]).not_to be_nil
+      expect(events.first[:branch]).not_to be_nil
     end
 
     it 'has the branch URL' do
-      expect(subject.staging_events.first[:branch][:url]).not_to be_nil
+      expect(events.first[:branch][:url]).not_to be_nil
     end
 
     it 'has the short SHA' do
-      expect(subject.staging_events.first[:short_sha]).not_to be_nil
+      expect(events.first[:short_sha]).not_to be_nil
     end
 
     it 'has the commit URL' do
-      expect(subject.staging_events.first[:commit_url]).not_to be_nil
+      expect(events.first[:commit_url]).not_to be_nil
     end
 
     it 'has the date' do
-      expect(subject.staging_events.first[:date]).not_to be_nil
+      expect(events.first[:date]).not_to be_nil
     end
 
     it 'has the total time' do
-      expect(subject.staging_events.first[:total_time]).not_to be_empty
+      expect(events.first[:total_time]).not_to be_empty
     end
 
     it "has the author's URL" do
-      expect(subject.staging_events.first[:author][:web_url]).not_to be_nil
+      expect(events.first[:author][:web_url]).not_to be_nil
     end
 
     it "has the author's avatar URL" do
-      expect(subject.staging_events.first[:author][:avatar_url]).not_to be_nil
+      expect(events.first[:author][:avatar_url]).not_to be_nil
     end
 
     it "has the author's name" do
-      expect(subject.staging_events.first[:author][:name]).to eq(MergeRequest.first.author.name)
+      expect(events.first[:author][:name]).to eq(MergeRequest.first.author.name)
     end
   end
 
   describe '#production_events' do
+    let(:stage) { :production }
     let!(:context) { create(:issue, project: project, created_at: 2.days.ago) }
 
     before do
@@ -284,35 +297,35 @@ describe Gitlab::CycleAnalytics::Events do
     end
 
     it 'has the total time' do
-      expect(subject.production_events.first[:total_time]).not_to be_empty
+      expect(events.first[:total_time]).not_to be_empty
     end
 
     it 'has a title' do
-      expect(subject.production_events.first[:title]).to eq(context.title)
+      expect(events.first[:title]).to eq(context.title)
     end
 
     it 'has the URL' do
-      expect(subject.production_events.first[:url]).not_to be_nil
+      expect(events.first[:url]).not_to be_nil
     end
 
     it 'has an iid' do
-      expect(subject.production_events.first[:iid]).to eq(context.iid.to_s)
+      expect(events.first[:iid]).to eq(context.iid.to_s)
     end
 
     it 'has a created_at timestamp' do
-      expect(subject.production_events.first[:created_at]).to end_with('ago')
+      expect(events.first[:created_at]).to end_with('ago')
     end
 
     it "has the author's URL" do
-      expect(subject.production_events.first[:author][:web_url]).not_to be_nil
+      expect(events.first[:author][:web_url]).not_to be_nil
     end
 
     it "has the author's avatar URL" do
-      expect(subject.production_events.first[:author][:avatar_url]).not_to be_nil
+      expect(events.first[:author][:avatar_url]).not_to be_nil
     end
 
     it "has the author's name" do
-      expect(subject.production_events.first[:author][:name]).to eq(context.author.name)
+      expect(events.first[:author][:name]).to eq(context.author.name)
     end
   end
 
diff --git a/spec/lib/gitlab/cycle_analytics/issue_event_fetcher_spec.rb b/spec/lib/gitlab/cycle_analytics/issue_event_fetcher_spec.rb
new file mode 100644
index 00000000000..fd9fa2fee49
--- /dev/null
+++ b/spec/lib/gitlab/cycle_analytics/issue_event_fetcher_spec.rb
@@ -0,0 +1,8 @@
+require 'spec_helper'
+require 'lib/gitlab/cycle_analytics/shared_event_spec'
+
+describe Gitlab::CycleAnalytics::IssueEventFetcher do
+  let(:stage_name) { :issue }
+
+  it_behaves_like 'default query config'
+end
diff --git a/spec/lib/gitlab/cycle_analytics/issue_event_spec.rb b/spec/lib/gitlab/cycle_analytics/issue_event_spec.rb
deleted file mode 100644
index 1c5c308da7d..00000000000
--- a/spec/lib/gitlab/cycle_analytics/issue_event_spec.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-require 'spec_helper'
-require 'lib/gitlab/cycle_analytics/shared_event_spec'
-
-describe Gitlab::CycleAnalytics::IssueEvent do
-  it_behaves_like 'default query config' do
-    it 'has the default order' do
-      expect(event.order).to eq(event.start_time_attrs)
-    end
-  end
-end
diff --git a/spec/lib/gitlab/cycle_analytics/issue_stage_spec.rb b/spec/lib/gitlab/cycle_analytics/issue_stage_spec.rb
new file mode 100644
index 00000000000..3127f01989d
--- /dev/null
+++ b/spec/lib/gitlab/cycle_analytics/issue_stage_spec.rb
@@ -0,0 +1,8 @@
+require 'spec_helper'
+require 'lib/gitlab/cycle_analytics/shared_stage_spec'
+
+describe Gitlab::CycleAnalytics::IssueStage do
+  let(:stage_name) { :issue }
+
+  it_behaves_like 'base stage'
+end
diff --git a/spec/lib/gitlab/cycle_analytics/plan_event_spec.rb b/spec/lib/gitlab/cycle_analytics/plan_event_fetcher_spec.rb
index 4a5604115ec..2e5dc5b5547 100644
--- a/spec/lib/gitlab/cycle_analytics/plan_event_spec.rb
+++ b/spec/lib/gitlab/cycle_analytics/plan_event_fetcher_spec.rb
@@ -1,15 +1,13 @@
 require 'spec_helper'
 require 'lib/gitlab/cycle_analytics/shared_event_spec'
 
-describe Gitlab::CycleAnalytics::PlanEvent do
-  it_behaves_like 'default query config' do
-    it 'has the default order' do
-      expect(event.order).to eq(event.start_time_attrs)
-    end
+describe Gitlab::CycleAnalytics::PlanEventFetcher do
+  let(:stage_name) { :plan }
 
+  it_behaves_like 'default query config' do
     context 'no commits' do
       it 'does not blow up if there are no commits' do
-        allow_any_instance_of(Gitlab::CycleAnalytics::EventsQuery).to receive(:execute).and_return([{}])
+        allow(event).to receive(:event_result).and_return([{}])
 
         expect { event.fetch }.not_to raise_error
       end
diff --git a/spec/lib/gitlab/cycle_analytics/plan_stage_spec.rb b/spec/lib/gitlab/cycle_analytics/plan_stage_spec.rb
new file mode 100644
index 00000000000..4c715921ad6
--- /dev/null
+++ b/spec/lib/gitlab/cycle_analytics/plan_stage_spec.rb
@@ -0,0 +1,8 @@
+require 'spec_helper'
+require 'lib/gitlab/cycle_analytics/shared_stage_spec'
+
+describe Gitlab::CycleAnalytics::PlanStage do
+  let(:stage_name) { :plan }
+
+  it_behaves_like 'base stage'
+end
diff --git a/spec/lib/gitlab/cycle_analytics/production_event_fetcher_spec.rb b/spec/lib/gitlab/cycle_analytics/production_event_fetcher_spec.rb
new file mode 100644
index 00000000000..74001181305
--- /dev/null
+++ b/spec/lib/gitlab/cycle_analytics/production_event_fetcher_spec.rb
@@ -0,0 +1,8 @@
+require 'spec_helper'
+require 'lib/gitlab/cycle_analytics/shared_event_spec'
+
+describe Gitlab::CycleAnalytics::ProductionEventFetcher do
+  let(:stage_name) { :production }
+
+  it_behaves_like 'default query config'
+end
diff --git a/spec/lib/gitlab/cycle_analytics/production_event_spec.rb b/spec/lib/gitlab/cycle_analytics/production_event_spec.rb
deleted file mode 100644
index ac17e3b4287..00000000000
--- a/spec/lib/gitlab/cycle_analytics/production_event_spec.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-require 'spec_helper'
-require 'lib/gitlab/cycle_analytics/shared_event_spec'
-
-describe Gitlab::CycleAnalytics::ProductionEvent do
-  it_behaves_like 'default query config' do
-    it 'has the default order' do
-      expect(event.order).to eq(event.start_time_attrs)
-    end
-  end
-end
diff --git a/spec/lib/gitlab/cycle_analytics/production_stage_spec.rb b/spec/lib/gitlab/cycle_analytics/production_stage_spec.rb
new file mode 100644
index 00000000000..916684b81eb
--- /dev/null
+++ b/spec/lib/gitlab/cycle_analytics/production_stage_spec.rb
@@ -0,0 +1,8 @@
+require 'spec_helper'
+require 'lib/gitlab/cycle_analytics/shared_stage_spec'
+
+describe Gitlab::CycleAnalytics::ProductionStage do
+  let(:stage_name) { :production }
+
+  it_behaves_like 'base stage'
+end
diff --git a/spec/lib/gitlab/cycle_analytics/review_event_fetcher_spec.rb b/spec/lib/gitlab/cycle_analytics/review_event_fetcher_spec.rb
new file mode 100644
index 00000000000..4f67c95ed4c
--- /dev/null
+++ b/spec/lib/gitlab/cycle_analytics/review_event_fetcher_spec.rb
@@ -0,0 +1,8 @@
+require 'spec_helper'
+require 'lib/gitlab/cycle_analytics/shared_event_spec'
+
+describe Gitlab::CycleAnalytics::ReviewEventFetcher do
+  let(:stage_name) { :review }
+
+  it_behaves_like 'default query config'
+end
diff --git a/spec/lib/gitlab/cycle_analytics/review_event_spec.rb b/spec/lib/gitlab/cycle_analytics/review_event_spec.rb
deleted file mode 100644
index 1ff53aa0227..00000000000
--- a/spec/lib/gitlab/cycle_analytics/review_event_spec.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-require 'spec_helper'
-require 'lib/gitlab/cycle_analytics/shared_event_spec'
-
-describe Gitlab::CycleAnalytics::ReviewEvent do
-  it_behaves_like 'default query config' do
-    it 'has the default order' do
-      expect(event.order).to eq(event.start_time_attrs)
-    end
-  end
-end
diff --git a/spec/lib/gitlab/cycle_analytics/review_stage_spec.rb b/spec/lib/gitlab/cycle_analytics/review_stage_spec.rb
new file mode 100644
index 00000000000..1412c8dfa08
--- /dev/null
+++ b/spec/lib/gitlab/cycle_analytics/review_stage_spec.rb
@@ -0,0 +1,8 @@
+require 'spec_helper'
+require 'lib/gitlab/cycle_analytics/shared_stage_spec'
+
+describe Gitlab::CycleAnalytics::ReviewStage do
+  let(:stage_name) { :review }
+
+  it_behaves_like 'base stage'
+end
diff --git a/spec/lib/gitlab/cycle_analytics/shared_event_spec.rb b/spec/lib/gitlab/cycle_analytics/shared_event_spec.rb
index 7019e4c3351..9c5e57342e9 100644
--- a/spec/lib/gitlab/cycle_analytics/shared_event_spec.rb
+++ b/spec/lib/gitlab/cycle_analytics/shared_event_spec.rb
@@ -1,20 +1,13 @@
 require 'spec_helper'
 
 shared_examples 'default query config' do
-  let(:event) { described_class.new(project: double, options: {}) }
-
-  it 'has the start attributes' do
-    expect(event.start_time_attrs).not_to be_nil
-  end
+  let(:project) { create(:empty_project) }
+  let(:event) { described_class.new(project: project, stage: stage_name, options: { from: 1.day.ago }) }
 
   it 'has the stage attribute' do
     expect(event.stage).not_to be_nil
   end
 
-  it 'has the end attributes' do
-    expect(event.end_time_attrs).not_to be_nil
-  end
-
   it 'has the projection attributes' do
     expect(event.projections).not_to be_nil
   end
diff --git a/spec/lib/gitlab/cycle_analytics/shared_stage_spec.rb b/spec/lib/gitlab/cycle_analytics/shared_stage_spec.rb
new file mode 100644
index 00000000000..08425acbfc8
--- /dev/null
+++ b/spec/lib/gitlab/cycle_analytics/shared_stage_spec.rb
@@ -0,0 +1,30 @@
+require 'spec_helper'
+
+shared_examples 'base stage' do
+  let(:stage) { described_class.new(project: double, options: {}) }
+
+  before do
+    allow(stage).to receive(:median).and_return(1.12)
+    allow_any_instance_of(Gitlab::CycleAnalytics::BaseEventFetcher).to receive(:event_result).and_return({})
+  end
+
+  it 'has the median data value' do
+    expect(stage.as_json[:value]).not_to be_nil
+  end
+
+  it 'has the median data stage' do
+    expect(stage.as_json[:title]).not_to be_nil
+  end
+
+  it 'has the median data description' do
+    expect(stage.as_json[:description]).not_to be_nil
+  end
+
+  it 'has the title' do
+    expect(stage.title).to eq(stage_name.to_s.capitalize)
+  end
+
+  it 'has the events' do
+    expect(stage.events).not_to be_nil
+  end
+end
diff --git a/spec/models/cycle_analytics/summary_spec.rb b/spec/lib/gitlab/cycle_analytics/stage_summary_spec.rb
index 725bc68b25f..fb6b6c4a8d2 100644
--- a/spec/models/cycle_analytics/summary_spec.rb
+++ b/spec/lib/gitlab/cycle_analytics/stage_summary_spec.rb
@@ -1,23 +1,23 @@
 require 'spec_helper'
 
-describe CycleAnalytics::Summary, models: true do
+describe Gitlab::CycleAnalytics::StageSummary, models: true do
   let(:project) { create(:project) }
-  let(:from) { Time.now }
+  let(:from) { 1.day.ago }
   let(:user) { create(:user, :admin) }
-  subject { described_class.new(project, user, from: from) }
+  subject { described_class.new(project, from: Time.now, current_user: user).data }
 
   describe "#new_issues" do
     it "finds the number of issues created after the 'from date'" do
       Timecop.freeze(5.days.ago) { create(:issue, project: project) }
       Timecop.freeze(5.days.from_now) { create(:issue, project: project) }
 
-      expect(subject.new_issues).to eq(1)
+      expect(subject.first[:value]).to eq(1)
     end
 
     it "doesn't find issues from other projects" do
       Timecop.freeze(5.days.from_now) { create(:issue, project: create(:project)) }
 
-      expect(subject.new_issues).to eq(0)
+      expect(subject.first[:value]).to eq(0)
     end
   end
 
@@ -26,19 +26,19 @@ describe CycleAnalytics::Summary, models: true do
       Timecop.freeze(5.days.ago) { create_commit("Test message", project, user, 'master') }
       Timecop.freeze(5.days.from_now) { create_commit("Test message", project, user, 'master') }
 
-      expect(subject.commits).to eq(1)
+      expect(subject.second[:value]).to eq(1)
     end
 
     it "doesn't find commits from other projects" do
       Timecop.freeze(5.days.from_now) { create_commit("Test message", create(:project), user, 'master') }
 
-      expect(subject.commits).to eq(0)
+      expect(subject.second[:value]).to eq(0)
     end
 
     it "finds a large (> 100) snumber of commits if present" do
       Timecop.freeze(5.days.from_now) { create_commit("Test message", project, user, 'master', count: 100) }
 
-      expect(subject.commits).to eq(100)
+      expect(subject.second[:value]).to eq(100)
     end
   end
 
@@ -47,13 +47,13 @@ describe CycleAnalytics::Summary, models: true do
       Timecop.freeze(5.days.ago) { create(:deployment, project: project) }
       Timecop.freeze(5.days.from_now) { create(:deployment, project: project) }
 
-      expect(subject.deploys).to eq(1)
+      expect(subject.third[:value]).to eq(1)
     end
 
     it "doesn't find commits from other projects" do
       Timecop.freeze(5.days.from_now) { create(:deployment, project: create(:project)) }
 
-      expect(subject.deploys).to eq(0)
+      expect(subject.third[:value]).to eq(0)
     end
   end
 end
diff --git a/spec/lib/gitlab/cycle_analytics/staging_event_fetcher_spec.rb b/spec/lib/gitlab/cycle_analytics/staging_event_fetcher_spec.rb
new file mode 100644
index 00000000000..bbc82496340
--- /dev/null
+++ b/spec/lib/gitlab/cycle_analytics/staging_event_fetcher_spec.rb
@@ -0,0 +1,12 @@
+require 'spec_helper'
+require 'lib/gitlab/cycle_analytics/shared_event_spec'
+
+describe Gitlab::CycleAnalytics::StagingEventFetcher do
+  let(:stage_name) { :staging }
+
+  it_behaves_like 'default query config' do
+    it 'has a default order' do
+      expect(event.order).not_to be_nil
+    end
+  end
+end
diff --git a/spec/lib/gitlab/cycle_analytics/staging_event_spec.rb b/spec/lib/gitlab/cycle_analytics/staging_event_spec.rb
deleted file mode 100644
index 4862d4765f2..00000000000
--- a/spec/lib/gitlab/cycle_analytics/staging_event_spec.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-require 'spec_helper'
-require 'lib/gitlab/cycle_analytics/shared_event_spec'
-
-describe Gitlab::CycleAnalytics::StagingEvent do
-  it_behaves_like 'default query config' do
-    it 'does not have the default order' do
-      expect(event.order).not_to eq(event.start_time_attrs)
-    end
-  end
-end
diff --git a/spec/lib/gitlab/cycle_analytics/staging_stage_spec.rb b/spec/lib/gitlab/cycle_analytics/staging_stage_spec.rb
new file mode 100644
index 00000000000..8154b3ac701
--- /dev/null
+++ b/spec/lib/gitlab/cycle_analytics/staging_stage_spec.rb
@@ -0,0 +1,8 @@
+require 'spec_helper'
+require 'lib/gitlab/cycle_analytics/shared_stage_spec'
+
+describe Gitlab::CycleAnalytics::StagingStage do
+  let(:stage_name) { :staging }
+
+  it_behaves_like 'base stage'
+end
diff --git a/spec/lib/gitlab/cycle_analytics/test_event_fetcher_spec.rb b/spec/lib/gitlab/cycle_analytics/test_event_fetcher_spec.rb
new file mode 100644
index 00000000000..6639fa54e0e
--- /dev/null
+++ b/spec/lib/gitlab/cycle_analytics/test_event_fetcher_spec.rb
@@ -0,0 +1,12 @@
+require 'spec_helper'
+require 'lib/gitlab/cycle_analytics/shared_event_spec'
+
+describe Gitlab::CycleAnalytics::TestEventFetcher do
+  let(:stage_name) { :test }
+
+  it_behaves_like 'default query config' do
+    it 'has a default order' do
+      expect(event.order).not_to be_nil
+    end
+  end
+end
diff --git a/spec/lib/gitlab/cycle_analytics/test_event_spec.rb b/spec/lib/gitlab/cycle_analytics/test_event_spec.rb
deleted file mode 100644
index e249db69fc6..00000000000
--- a/spec/lib/gitlab/cycle_analytics/test_event_spec.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-require 'spec_helper'
-require 'lib/gitlab/cycle_analytics/shared_event_spec'
-
-describe Gitlab::CycleAnalytics::TestEvent do
-  it_behaves_like 'default query config' do
-    it 'does not have the default order' do
-      expect(event.order).not_to eq(event.start_time_attrs)
-    end
-  end
-end
diff --git a/spec/lib/gitlab/cycle_analytics/test_stage_spec.rb b/spec/lib/gitlab/cycle_analytics/test_stage_spec.rb
new file mode 100644
index 00000000000..eacde22cd56
--- /dev/null
+++ b/spec/lib/gitlab/cycle_analytics/test_stage_spec.rb
@@ -0,0 +1,8 @@
+require 'spec_helper'
+require 'lib/gitlab/cycle_analytics/shared_stage_spec'
+
+describe Gitlab::CycleAnalytics::TestStage do
+  let(:stage_name) { :test }
+
+  it_behaves_like 'base stage'
+end
diff --git a/spec/lib/gitlab/import_export/all_models.yml b/spec/lib/gitlab/import_export/all_models.yml
index ceed9c942c1..7fb6829f582 100644
--- a/spec/lib/gitlab/import_export/all_models.yml
+++ b/spec/lib/gitlab/import_export/all_models.yml
@@ -15,6 +15,7 @@ issues:
 - events
 - merge_requests_closing_issues
 - metrics
+- timelogs
 events:
 - author
 - project
@@ -77,6 +78,7 @@ merge_requests:
 - events
 - merge_requests_closing_issues
 - metrics
+- timelogs
 merge_request_diff:
 - merge_request
 pipelines:
@@ -198,3 +200,6 @@ award_emoji:
 - user
 priorities:
 - label
+timelogs:
+- trackable
+- user
diff --git a/spec/lib/gitlab/import_export/safe_model_attributes.yml b/spec/lib/gitlab/import_export/safe_model_attributes.yml
index d88a141b458..493bc2db21a 100644
--- a/spec/lib/gitlab/import_export/safe_model_attributes.yml
+++ b/spec/lib/gitlab/import_export/safe_model_attributes.yml
@@ -20,6 +20,7 @@ Issue:
 - lock_version
 - milestone_id
 - weight
+- time_estimate
 Event:
 - id
 - target_type
@@ -150,6 +151,7 @@ MergeRequest:
 - milestone_id
 - approvals_before_merge
 - rebase_commit_sha
+- time_estimate
 MergeRequestDiff:
 - id
 - state
@@ -344,3 +346,11 @@ LabelPriority:
 - priority
 - created_at
 - updated_at
+Timelog:
+- id
+- time_spent
+- trackable_id
+- trackable_type
+- user_id
+- created_at
+- updated_at
diff --git a/spec/models/ci/build_spec.rb b/spec/models/ci/build_spec.rb
index af0f6a31eda..3309a7fff9f 100644
--- a/spec/models/ci/build_spec.rb
+++ b/spec/models/ci/build_spec.rb
@@ -1013,6 +1013,24 @@ describe Ci::Build, :models do
     end
   end
 
+  describe '#has_expiring_artifacts?' do
+    context 'when artifacts have expiration date set' do
+      before { build.update(artifacts_expire_at: 1.day.from_now) }
+
+      it 'has expiring artifacts' do
+        expect(build).to have_expiring_artifacts
+      end
+    end
+
+    context 'when artifacts do not have expiration date set' do
+      before { build.update(artifacts_expire_at: nil) }
+
+      it 'does not have expiring artifacts' do
+        expect(build).not_to have_expiring_artifacts
+      end
+    end
+  end
+
   describe '#has_trace_file?' do
     context 'when there is no trace' do
       it { expect(build.has_trace_file?).to be_falsey }
diff --git a/spec/models/concerns/issuable_spec.rb b/spec/models/concerns/issuable_spec.rb
index 1078c959419..d7d31892e12 100644
--- a/spec/models/concerns/issuable_spec.rb
+++ b/spec/models/concerns/issuable_spec.rb
@@ -408,4 +408,42 @@ describe Issue, "Issuable" do
       expect(issue.assignee_or_author?(user)).to eq(false)
     end
   end
+
+  describe '#spend_time' do
+    let(:user) { create(:user) }
+    let(:issue) { create(:issue) }
+
+    def spend_time(seconds)
+      issue.spend_time(duration: seconds, user: user)
+      issue.save!
+    end
+
+    context 'adding time' do
+      it 'should update the total time spent' do
+        spend_time(1800)
+
+        expect(issue.total_time_spent).to eq(1800)
+      end
+    end
+
+    context 'substracting time' do
+      before do
+        spend_time(1800)
+      end
+
+      it 'should update the total time spent' do
+        spend_time(-900)
+
+        expect(issue.total_time_spent).to eq(900)
+      end
+
+      context 'when time to substract exceeds the total time spent' do
+        it 'raise a validation error' do
+          expect do
+            spend_time(-3600)
+          end.to raise_error(ActiveRecord::RecordInvalid)
+        end
+      end
+    end
+  end
 end
diff --git a/spec/models/cycle_analytics/code_spec.rb b/spec/models/cycle_analytics/code_spec.rb
index 7771785ead3..70f985afefb 100644
--- a/spec/models/cycle_analytics/code_spec.rb
+++ b/spec/models/cycle_analytics/code_spec.rb
@@ -6,7 +6,7 @@ describe 'CycleAnalytics#code', feature: true do
   let(:project) { create(:project) }
   let(:from_date) { 10.days.ago }
   let(:user) { create(:user, :admin) }
-  subject { CycleAnalytics.new(project, user, from: from_date) }
+  subject { CycleAnalytics.new(project, from: from_date) }
 
   context 'with deployment' do
     generate_cycle_analytics_spec(
@@ -16,10 +16,10 @@ describe 'CycleAnalytics#code', feature: true do
                                -> (context, data) do
                                  context.create_commit_referencing_issue(data[:issue])
                                end]],
-      end_time_conditions:   [["merge request that closes issue is created",
-                               -> (context, data) do
-                                 context.create_merge_request_closing_issue(data[:issue])
-                               end]],
+      end_time_conditions: [["merge request that closes issue is created",
+                             -> (context, data) do
+                               context.create_merge_request_closing_issue(data[:issue])
+                             end]],
       post_fn: -> (context, data) do
         context.merge_merge_requests_closing_issue(data[:issue])
         context.deploy_master
@@ -37,7 +37,7 @@ describe 'CycleAnalytics#code', feature: true do
           deploy_master
         end
 
-        expect(subject.code).to be_nil
+        expect(subject[:code].median).to be_nil
       end
     end
   end
@@ -50,10 +50,10 @@ describe 'CycleAnalytics#code', feature: true do
                                -> (context, data) do
                                  context.create_commit_referencing_issue(data[:issue])
                                end]],
-      end_time_conditions:   [["merge request that closes issue is created",
-                               -> (context, data) do
-                                 context.create_merge_request_closing_issue(data[:issue])
-                               end]],
+      end_time_conditions: [["merge request that closes issue is created",
+                             -> (context, data) do
+                               context.create_merge_request_closing_issue(data[:issue])
+                             end]],
       post_fn: -> (context, data) do
         context.merge_merge_requests_closing_issue(data[:issue])
       end)
@@ -69,7 +69,7 @@ describe 'CycleAnalytics#code', feature: true do
           merge_merge_requests_closing_issue(issue)
         end
 
-        expect(subject.code).to be_nil
+        expect(subject[:code].median).to be_nil
       end
     end
   end
diff --git a/spec/models/cycle_analytics/issue_spec.rb b/spec/models/cycle_analytics/issue_spec.rb
index 5ed3d37f2fb..e4b6a8f4518 100644
--- a/spec/models/cycle_analytics/issue_spec.rb
+++ b/spec/models/cycle_analytics/issue_spec.rb
@@ -6,7 +6,7 @@ describe 'CycleAnalytics#issue', models: true do
   let(:project) { create(:project) }
   let(:from_date) { 10.days.ago }
   let(:user) { create(:user, :admin) }
-  subject { CycleAnalytics.new(project, user, from: from_date) }
+  subject { CycleAnalytics.new(project, from: from_date) }
 
   generate_cycle_analytics_spec(
     phase: :issue,
@@ -42,7 +42,7 @@ describe 'CycleAnalytics#issue', models: true do
         merge_merge_requests_closing_issue(issue)
       end
 
-      expect(subject.issue).to be_nil
+      expect(subject[:issue].median).to be_nil
     end
   end
 end
diff --git a/spec/models/cycle_analytics/plan_spec.rb b/spec/models/cycle_analytics/plan_spec.rb
index baf3e3241a1..dc5b04852d6 100644
--- a/spec/models/cycle_analytics/plan_spec.rb
+++ b/spec/models/cycle_analytics/plan_spec.rb
@@ -6,7 +6,7 @@ describe 'CycleAnalytics#plan', feature: true do
   let(:project) { create(:project) }
   let(:from_date) { 10.days.ago }
   let(:user) { create(:user, :admin) }
-  subject { CycleAnalytics.new(project, user, from: from_date) }
+  subject { CycleAnalytics.new(project, from: from_date) }
 
   generate_cycle_analytics_spec(
     phase: :plan,
@@ -44,7 +44,7 @@ describe 'CycleAnalytics#plan', feature: true do
       create_merge_request_closing_issue(issue, source_branch: branch_name)
       merge_merge_requests_closing_issue(issue)
 
-      expect(subject.issue).to be_nil
+      expect(subject[:issue].median).to be_nil
     end
   end
 end
diff --git a/spec/models/cycle_analytics/production_spec.rb b/spec/models/cycle_analytics/production_spec.rb
index 21b9c6e7150..5e99188f318 100644
--- a/spec/models/cycle_analytics/production_spec.rb
+++ b/spec/models/cycle_analytics/production_spec.rb
@@ -6,7 +6,7 @@ describe 'CycleAnalytics#production', feature: true do
   let(:project) { create(:project) }
   let(:from_date) { 10.days.ago }
   let(:user) { create(:user, :admin) }
-  subject { CycleAnalytics.new(project, user, from: from_date) }
+  subject { CycleAnalytics.new(project, from: from_date) }
 
   generate_cycle_analytics_spec(
     phase: :production,
@@ -35,7 +35,7 @@ describe 'CycleAnalytics#production', feature: true do
         deploy_master
       end
 
-      expect(subject.production).to be_nil
+      expect(subject[:production].median).to be_nil
     end
   end
 
@@ -48,7 +48,7 @@ describe 'CycleAnalytics#production', feature: true do
         deploy_master(environment: 'staging')
       end
 
-      expect(subject.production).to be_nil
+      expect(subject[:production].median).to be_nil
     end
   end
 end
diff --git a/spec/models/cycle_analytics/review_spec.rb b/spec/models/cycle_analytics/review_spec.rb
index 158621d59a4..45baa5f7006 100644
--- a/spec/models/cycle_analytics/review_spec.rb
+++ b/spec/models/cycle_analytics/review_spec.rb
@@ -6,7 +6,7 @@ describe 'CycleAnalytics#review', feature: true do
   let(:project) { create(:project) }
   let(:from_date) { 10.days.ago }
   let(:user) { create(:user, :admin) }
-  subject { CycleAnalytics.new(project, user, from: from_date) }
+  subject { CycleAnalytics.new(project, from: from_date) }
 
   generate_cycle_analytics_spec(
     phase: :review,
@@ -27,7 +27,7 @@ describe 'CycleAnalytics#review', feature: true do
         MergeRequests::MergeService.new(project, user).execute(create(:merge_request))
       end
 
-      expect(subject.review).to be_nil
+      expect(subject[:review].median).to be_nil
     end
   end
 end
diff --git a/spec/models/cycle_analytics/staging_spec.rb b/spec/models/cycle_analytics/staging_spec.rb
index dad653964b7..77625aad580 100644
--- a/spec/models/cycle_analytics/staging_spec.rb
+++ b/spec/models/cycle_analytics/staging_spec.rb
@@ -6,7 +6,7 @@ describe 'CycleAnalytics#staging', feature: true do
   let(:project) { create(:project) }
   let(:from_date) { 10.days.ago }
   let(:user) { create(:user, :admin) }
-  subject { CycleAnalytics.new(project, user, from: from_date) }
+  subject { CycleAnalytics.new(project, from: from_date) }
 
   generate_cycle_analytics_spec(
     phase: :staging,
@@ -45,7 +45,7 @@ describe 'CycleAnalytics#staging', feature: true do
         deploy_master
       end
 
-      expect(subject.staging).to be_nil
+      expect(subject[:staging].median).to be_nil
     end
   end
 
@@ -58,7 +58,7 @@ describe 'CycleAnalytics#staging', feature: true do
         deploy_master(environment: 'staging')
       end
 
-      expect(subject.staging).to be_nil
+      expect(subject[:staging].median).to be_nil
     end
   end
 end
diff --git a/spec/models/cycle_analytics/test_spec.rb b/spec/models/cycle_analytics/test_spec.rb
index 2313724e8f3..27a117d2d76 100644
--- a/spec/models/cycle_analytics/test_spec.rb
+++ b/spec/models/cycle_analytics/test_spec.rb
@@ -6,7 +6,7 @@ describe 'CycleAnalytics#test', feature: true do
   let(:project) { create(:project) }
   let(:from_date) { 10.days.ago }
   let(:user) { create(:user, :admin) }
-  subject { CycleAnalytics.new(project, user, from: from_date) }
+  subject { CycleAnalytics.new(project, from: from_date) }
 
   generate_cycle_analytics_spec(
     phase: :test,
@@ -35,7 +35,7 @@ describe 'CycleAnalytics#test', feature: true do
         merge_merge_requests_closing_issue(issue)
       end
 
-      expect(subject.test).to be_nil
+      expect(subject[:test].median).to be_nil
     end
   end
 
@@ -48,7 +48,7 @@ describe 'CycleAnalytics#test', feature: true do
         pipeline.succeed!
       end
 
-      expect(subject.test).to be_nil
+      expect(subject[:test].median).to be_nil
     end
   end
 
@@ -65,7 +65,7 @@ describe 'CycleAnalytics#test', feature: true do
         merge_merge_requests_closing_issue(issue)
       end
 
-      expect(subject.test).to be_nil
+      expect(subject[:test].median).to be_nil
     end
   end
 
@@ -82,7 +82,7 @@ describe 'CycleAnalytics#test', feature: true do
         merge_merge_requests_closing_issue(issue)
       end
 
-      expect(subject.test).to be_nil
+      expect(subject[:test].median).to be_nil
     end
   end
 end
diff --git a/spec/models/merge_request_diff_spec.rb b/spec/models/merge_request_diff_spec.rb
index eb876d105da..6d599e148a2 100644
--- a/spec/models/merge_request_diff_spec.rb
+++ b/spec/models/merge_request_diff_spec.rb
@@ -76,6 +76,32 @@ describe MergeRequestDiff, models: true do
     end
   end
 
+  describe '#save_diffs' do
+    it 'saves collected state' do
+      mr_diff = create(:merge_request).merge_request_diff
+
+      expect(mr_diff.collected?).to be_truthy
+    end
+
+    it 'saves overflow state' do
+      allow(Commit).to receive(:max_diff_options)
+        .and_return(max_lines: 0, max_files: 0)
+
+      mr_diff = create(:merge_request).merge_request_diff
+
+      expect(mr_diff.overflow?).to be_truthy
+    end
+
+    it 'saves empty state' do
+      allow_any_instance_of(MergeRequestDiff).to receive(:commits)
+        .and_return([])
+
+      mr_diff = create(:merge_request).merge_request_diff
+
+      expect(mr_diff.empty?).to be_truthy
+    end
+  end
+
   describe '#commits_sha' do
     it 'returns all commits SHA using serialized commits' do
       subject.st_commits = [
diff --git a/spec/models/merge_request_spec.rb b/spec/models/merge_request_spec.rb
index 8d1385016fd..861426acbc3 100644
--- a/spec/models/merge_request_spec.rb
+++ b/spec/models/merge_request_spec.rb
@@ -1514,6 +1514,108 @@ describe MergeRequest, models: true do
     end
   end
 
+  describe '#mergeable_with_slash_command?' do
+    def create_pipeline(status)
+      create(:ci_pipeline_with_one_job,
+        project: project,
+        ref:     merge_request.source_branch,
+        sha:     merge_request.diff_head_sha,
+        status:  status)
+    end
+
+    let(:project)       { create(:project, :public, only_allow_merge_if_build_succeeds: true) }
+    let(:developer)     { create(:user) }
+    let(:user)          { create(:user) }
+    let(:merge_request) { create(:merge_request, source_project: project) }
+    let(:mr_sha)        { merge_request.diff_head_sha }
+
+    before do
+      project.team << [developer, :developer]
+    end
+
+    context 'when autocomplete_precheck is set to true' do
+      it 'is mergeable by developer' do
+        expect(merge_request.mergeable_with_slash_command?(developer, autocomplete_precheck: true)).to be_truthy
+      end
+
+      it 'is not mergeable by normal user' do
+        expect(merge_request.mergeable_with_slash_command?(user, autocomplete_precheck: true)).to be_falsey
+      end
+    end
+
+    context 'when autocomplete_precheck is set to false' do
+      it 'is mergeable by developer' do
+        expect(merge_request.mergeable_with_slash_command?(developer, last_diff_sha: mr_sha)).to be_truthy
+      end
+
+      it 'is not mergeable by normal user' do
+        expect(merge_request.mergeable_with_slash_command?(user, last_diff_sha: mr_sha)).to be_falsey
+      end
+
+      context 'closed MR'  do
+        before do
+          merge_request.update_attribute(:state, :closed)
+        end
+
+        it 'is not mergeable' do
+          expect(merge_request.mergeable_with_slash_command?(developer, last_diff_sha: mr_sha)).to be_falsey
+        end
+      end
+
+      context 'MR with WIP'  do
+        before do
+          merge_request.update_attribute(:title, 'WIP: some MR')
+        end
+
+        it 'is not mergeable' do
+          expect(merge_request.mergeable_with_slash_command?(developer, last_diff_sha: mr_sha)).to be_falsey
+        end
+      end
+
+      context 'sha differs from the MR diff_head_sha'  do
+        it 'is not mergeable' do
+          expect(merge_request.mergeable_with_slash_command?(developer, last_diff_sha: 'some other sha')).to be_falsey
+        end
+      end
+
+      context 'sha is not provided'  do
+        it 'is not mergeable' do
+          expect(merge_request.mergeable_with_slash_command?(developer)).to be_falsey
+        end
+      end
+
+      context 'with pipeline ok'  do
+        before do
+          create_pipeline(:success)
+        end
+
+        it 'is mergeable' do
+          expect(merge_request.mergeable_with_slash_command?(developer, last_diff_sha: mr_sha)).to be_truthy
+        end
+      end
+
+      context 'with failing pipeline'  do
+        before do
+          create_pipeline(:failed)
+        end
+
+        it 'is not mergeable' do
+          expect(merge_request.mergeable_with_slash_command?(developer, last_diff_sha: mr_sha)).to be_falsey
+        end
+      end
+
+      context 'with running pipeline'  do
+        before do
+          create_pipeline(:running)
+        end
+
+        it 'is mergeable' do
+          expect(merge_request.mergeable_with_slash_command?(developer, last_diff_sha: mr_sha)).to be_truthy
+        end
+      end
+    end
+  end
+
   describe '#has_commits?' do
     before do
       allow(subject.merge_request_diff).to receive(:commits_count).
diff --git a/spec/models/project_statistics_spec.rb b/spec/models/project_statistics_spec.rb
index 77403cc9eb0..ff29f6f66ba 100644
--- a/spec/models/project_statistics_spec.rb
+++ b/spec/models/project_statistics_spec.rb
@@ -107,7 +107,7 @@ describe ProjectStatistics, models: true do
 
   describe '#update_repository_size' do
     before do
-      allow(project.repository).to receive(:size).and_return(12.megabytes)
+      allow(project.repository).to receive(:size).and_return(12)
       statistics.update_repository_size
     end
 
diff --git a/spec/models/timelog_spec.rb b/spec/models/timelog_spec.rb
new file mode 100644
index 00000000000..f08935b6425
--- /dev/null
+++ b/spec/models/timelog_spec.rb
@@ -0,0 +1,10 @@
+require 'rails_helper'
+
+RSpec.describe Timelog, type: :model do
+  subject { build(:timelog) }
+
+  it { is_expected.to be_valid }
+
+  it { is_expected.to validate_presence_of(:time_spent) }
+  it { is_expected.to validate_presence_of(:user) }
+end
diff --git a/spec/requests/api/issues_spec.rb b/spec/requests/api/issues_spec.rb
index 12dd4bd83f7..807c999b84a 100644
--- a/spec/requests/api/issues_spec.rb
+++ b/spec/requests/api/issues_spec.rb
@@ -1193,4 +1193,10 @@ describe API::Issues, api: true  do
       expect(response).to have_http_status(404)
     end
   end
+
+  describe 'time tracking endpoints' do
+    let(:issuable) { issue }
+
+    include_examples 'time tracking endpoints', 'issue'
+  end
 end
diff --git a/spec/requests/api/merge_requests_spec.rb b/spec/requests/api/merge_requests_spec.rb
index f032d1b683d..4e4fea1dad8 100644
--- a/spec/requests/api/merge_requests_spec.rb
+++ b/spec/requests/api/merge_requests_spec.rb
@@ -6,7 +6,7 @@ describe API::MergeRequests, api: true  do
   let(:user)        { create(:user) }
   let(:admin)       { create(:user, :admin) }
   let(:non_member)  { create(:user) }
-  let!(:project)    { create(:project, creator_id: user.id, namespace: user.namespace) }
+  let!(:project)    { create(:project, :public, creator_id: user.id, namespace: user.namespace) }
   let!(:merge_request) { create(:merge_request, :simple, author: user, assignee: user, source_project: project, target_project: project, title: "Test", created_at: base_time) }
   let!(:merge_request_closed) { create(:merge_request, state: "closed", author: user, assignee: user, source_project: project, target_project: project, title: "Closed test", created_at: base_time + 1.second) }
   let!(:merge_request_merged) { create(:merge_request, state: "merged", author: user, assignee: user, source_project: project, target_project: project, title: "Merged test", created_at: base_time + 2.seconds, merge_commit_sha: '9999999999999999999999999999999999999999') }
@@ -671,6 +671,12 @@ describe API::MergeRequests, api: true  do
     end
   end
 
+  describe 'Time tracking' do
+    let(:issuable) { merge_request }
+
+    include_examples 'time tracking endpoints', 'merge_request'
+  end
+
   def mr_with_later_created_and_updated_at_time
     merge_request
     merge_request.created_at += 1.hour
diff --git a/spec/serializers/analytics_stage_serializer_spec.rb b/spec/serializers/analytics_stage_serializer_spec.rb
new file mode 100644
index 00000000000..f9951826683
--- /dev/null
+++ b/spec/serializers/analytics_stage_serializer_spec.rb
@@ -0,0 +1,24 @@
+require 'spec_helper'
+
+describe AnalyticsStageSerializer do
+  let(:serializer) do
+    described_class
+      .new.represent(resource)
+  end
+
+  let(:json) { serializer.as_json }
+  let(:resource) { Gitlab::CycleAnalytics::CodeStage.new(project: double, options: {}) }
+
+  before do
+    allow_any_instance_of(Gitlab::CycleAnalytics::BaseStage).to receive(:median).and_return(1.12)
+    allow_any_instance_of(Gitlab::CycleAnalytics::BaseEventFetcher).to receive(:event_result).and_return({})
+  end
+
+  it 'it generates payload for single object' do
+    expect(json).to be_kind_of Hash
+  end
+
+  it 'contains important elements of AnalyticsStage' do
+    expect(json).to include(:title, :description, :value)
+  end
+end
diff --git a/spec/serializers/analytics_summary_serializer_spec.rb b/spec/serializers/analytics_summary_serializer_spec.rb
new file mode 100644
index 00000000000..7a84c8b0b40
--- /dev/null
+++ b/spec/serializers/analytics_summary_serializer_spec.rb
@@ -0,0 +1,29 @@
+require 'spec_helper'
+
+describe AnalyticsSummarySerializer do
+  let(:serializer) do
+    described_class
+      .new.represent(resource)
+  end
+
+  let(:json) { serializer.as_json }
+  let(:project) { create(:empty_project) }
+  let(:user) { create(:user) }
+  let(:resource) do
+    Gitlab::CycleAnalytics::Summary::Issue.new(project: double,
+                                               from: 1.day.ago,
+                                               current_user: user)
+  end
+
+  before do
+    allow_any_instance_of(Gitlab::CycleAnalytics::Summary::Issue).to receive(:value).and_return(1.12)
+  end
+
+  it 'it generates payload for single object' do
+    expect(json).to be_kind_of Hash
+  end
+
+  it 'contains important elements of AnalyticsStage' do
+    expect(json).to include(:title, :value)
+  end
+end
diff --git a/spec/services/merge_requests/update_service_spec.rb b/spec/services/merge_requests/update_service_spec.rb
index 88c786947d3..7d73c0ea5d0 100644
--- a/spec/services/merge_requests/update_service_spec.rb
+++ b/spec/services/merge_requests/update_service_spec.rb
@@ -121,6 +121,99 @@ describe MergeRequests::UpdateService, services: true do
       end
     end
 
+    context 'merge' do
+      let(:opts) do
+        {
+          merge: merge_request.diff_head_sha
+        }
+      end
+
+      let(:service) { MergeRequests::UpdateService.new(project, user, opts) }
+
+      context 'without pipeline' do
+        before do
+          merge_request.merge_error = 'Error'
+
+          perform_enqueued_jobs do
+            service.execute(merge_request)
+            @merge_request = MergeRequest.find(merge_request.id)
+          end
+        end
+
+        it { expect(@merge_request).to be_valid }
+        it { expect(@merge_request.state).to eq('merged') }
+        it { expect(@merge_request.merge_error).to be_nil }
+      end
+
+      context 'with finished pipeline' do
+        before do
+          create(:ci_pipeline_with_one_job,
+            project: project,
+            ref:     merge_request.source_branch,
+            sha:     merge_request.diff_head_sha,
+            status:  :success)
+
+          perform_enqueued_jobs do
+            @merge_request = service.execute(merge_request)
+            @merge_request = MergeRequest.find(merge_request.id)
+          end
+        end
+
+        it { expect(@merge_request).to be_valid }
+        it { expect(@merge_request.state).to eq('merged') }
+      end
+
+      context 'with active pipeline' do
+        before do
+          service_mock = double
+          create(:ci_pipeline_with_one_job,
+            project: project,
+            ref:     merge_request.source_branch,
+            sha:     merge_request.diff_head_sha)
+
+          expect(MergeRequests::MergeWhenPipelineSucceedsService).to receive(:new).with(project, user).
+            and_return(service_mock)
+          expect(service_mock).to receive(:execute).with(merge_request)
+        end
+
+        it { service.execute(merge_request) }
+      end
+
+      context 'with a non-authorised user' do
+        let(:visitor) { create(:user) }
+        let(:service) { MergeRequests::UpdateService.new(project, visitor, opts) }
+
+        before do
+          merge_request.update_attribute(:merge_error, 'Error')
+
+          perform_enqueued_jobs do
+            @merge_request = service.execute(merge_request)
+            @merge_request = MergeRequest.find(merge_request.id)
+          end
+        end
+
+        it { expect(@merge_request.state).to eq('opened') }
+        it { expect(@merge_request.merge_error).not_to be_nil }
+      end
+
+      context 'MR can not be merged when note sha != MR sha' do
+        let(:opts) do
+          {
+            merge: 'other_commit'
+          }
+        end
+
+        before do
+          perform_enqueued_jobs do
+            @merge_request = service.execute(merge_request)
+            @merge_request = MergeRequest.find(merge_request.id)
+          end
+        end
+
+        it { expect(@merge_request.state).to eq('opened') }
+      end
+    end
+
     context 'todos' do
       let!(:pending_todo) { create(:todo, :assigned, user: user, project: project, target: merge_request, author: user2) }
 
diff --git a/spec/services/notes/create_service_spec.rb b/spec/services/notes/create_service_spec.rb
index 25804696d2e..b0cc3ce5f5a 100644
--- a/spec/services/notes/create_service_spec.rb
+++ b/spec/services/notes/create_service_spec.rb
@@ -63,6 +63,17 @@ describe Notes::CreateService, services: true do
           expect(note.note).to eq "HELLO\nWORLD"
         end
       end
+
+      describe '/merge with sha option' do
+        let(:note_text) { %(HELLO\n/merge\nWORLD) }
+        let(:params) { opts.merge(note: note_text, merge_request_diff_head_sha: 'sha') }
+
+        it 'saves the note and exectues merge command' do
+          note = described_class.new(project, user, params).execute
+
+          expect(note.note).to eq "HELLO\nWORLD"
+        end
+      end
     end
   end
 
diff --git a/spec/services/notes/slash_commands_service_spec.rb b/spec/services/notes/slash_commands_service_spec.rb
index 960b5cd5e6f..1a64c8bbf00 100644
--- a/spec/services/notes/slash_commands_service_spec.rb
+++ b/spec/services/notes/slash_commands_service_spec.rb
@@ -86,6 +86,18 @@ describe Notes::SlashCommandsService, services: true do
           expect(note.noteable).to be_open
         end
       end
+
+      describe '/spend' do
+        let(:note_text) { '/spend 1h' }
+
+        it 'updates the spent time on the noteable' do
+          content, command_params = service.extract_commands(note)
+          service.execute(command_params, note)
+
+          expect(content).to eq ''
+          expect(note.noteable.time_spent).to eq(3600)
+        end
+      end
     end
 
     describe 'note with command & text' do
diff --git a/spec/services/slash_commands/interpret_service_spec.rb b/spec/services/slash_commands/interpret_service_spec.rb
index becf627a4f5..66fc8fc360b 100644
--- a/spec/services/slash_commands/interpret_service_spec.rb
+++ b/spec/services/slash_commands/interpret_service_spec.rb
@@ -1,12 +1,13 @@
 require 'spec_helper'
 
 describe SlashCommands::InterpretService, services: true do
-  let(:project) { create(:empty_project, :public) }
+  let(:project) { create(:project, :public) }
   let(:developer) { create(:user) }
   let(:issue) { create(:issue, project: project) }
   let(:milestone) { create(:milestone, project: project, title: '9.10') }
   let(:inprogress) { create(:label, project: project, title: 'In Progress') }
   let(:bug) { create(:label, project: project, title: 'Bug') }
+  let(:note) { build(:note, commit_id: merge_request.diff_head_sha) }
 
   before do
     project.team << [developer, :developer]
@@ -210,6 +211,46 @@ describe SlashCommands::InterpretService, services: true do
       end
     end
 
+    shared_examples 'estimate command' do
+      it 'populates time_estimate: 3600 if content contains /estimate 1h' do
+        _, updates = service.execute(content, issuable)
+
+        expect(updates).to eq(time_estimate: 3600)
+      end
+    end
+
+    shared_examples 'spend command' do
+      it 'populates spend_time: 3600 if content contains /spend 1h' do
+        _, updates = service.execute(content, issuable)
+
+        expect(updates).to eq(spend_time: { duration: 3600, user: developer })
+      end
+    end
+
+    shared_examples 'spend command with negative time' do
+      it 'populates spend_time: -1800 if content contains /spend -30m' do
+        _, updates = service.execute(content, issuable)
+
+        expect(updates).to eq(spend_time: { duration: -1800, user: developer })
+      end
+    end
+
+    shared_examples 'remove_estimate command' do
+      it 'populates time_estimate: 0 if content contains /remove_estimate' do
+        _, updates = service.execute(content, issuable)
+
+        expect(updates).to eq(time_estimate: 0)
+      end
+    end
+
+    shared_examples 'remove_time_spent command' do
+      it 'populates spend_time: :reset if content contains /remove_time_spent' do
+        _, updates = service.execute(content, issuable)
+
+        expect(updates).to eq(spend_time: { duration: :reset, user: developer })
+      end
+    end
+
     shared_examples 'empty command' do
       it 'populates {} if content contains an unsupported command' do
         _, updates = service.execute(content, issuable)
@@ -218,6 +259,14 @@ describe SlashCommands::InterpretService, services: true do
       end
     end
 
+    shared_examples 'merge command' do
+      it 'runs merge command if content contains /merge' do
+        _, updates = service.execute(content, issuable)
+
+        expect(updates).to eq(merge: merge_request.diff_head_sha)
+      end
+    end
+
     it_behaves_like 'reopen command' do
       let(:content) { '/reopen' }
       let(:issuable) { issue }
@@ -238,6 +287,64 @@ describe SlashCommands::InterpretService, services: true do
       let(:issuable) { merge_request }
     end
 
+    context 'merge command' do
+      let(:service) { described_class.new(project, developer, { merge_request_diff_head_sha: merge_request.diff_head_sha }) }
+
+      it_behaves_like 'merge command' do
+        let(:content) { '/merge' }
+        let(:issuable) { merge_request }
+      end
+
+      context 'can not be merged when logged user does not have permissions' do
+        let(:service) { described_class.new(project, create(:user)) }
+
+        it_behaves_like 'empty command' do
+          let(:content) { "/merge" }
+          let(:issuable) { merge_request }
+        end
+      end
+
+      context 'can not be merged when sha does not match' do
+        let(:service) { described_class.new(project, developer, { merge_request_diff_head_sha: 'othersha' }) }
+
+        it_behaves_like 'empty command' do
+          let(:content) { "/merge" }
+          let(:issuable) { merge_request }
+        end
+      end
+
+      context 'when sha is missing' do
+        let(:service) { described_class.new(project, developer, {}) }
+
+        it 'precheck passes and returns merge command' do
+          _, updates = service.execute('/merge', merge_request)
+
+          expect(updates).to eq(merge: nil)
+        end
+      end
+
+      context 'issue can not be merged' do
+        it_behaves_like 'empty command' do
+          let(:content) { "/merge" }
+          let(:issuable) { issue }
+        end
+      end
+
+      context 'non persisted merge request  cant be merged' do
+        it_behaves_like 'empty command' do
+          let(:content) { "/merge" }
+          let(:issuable) { build(:merge_request) }
+        end
+      end
+
+      context 'not persisted merge request can not be merged' do
+        it_behaves_like 'empty command' do
+          let(:content) { "/merge" }
+          let(:issuable) { build(:merge_request, source_project: project) }
+        end
+      end
+    end
+
     it_behaves_like 'title command' do
       let(:content) { '/title A brand new title' }
       let(:issuable) { issue }
@@ -451,6 +558,51 @@ describe SlashCommands::InterpretService, services: true do
       let(:issuable) { merge_request }
     end
 
+    it_behaves_like 'estimate command' do
+      let(:content) { '/estimate 1h' }
+      let(:issuable) { issue }
+    end
+
+    it_behaves_like 'empty command' do
+      let(:content) { '/estimate' }
+      let(:issuable) { issue }
+    end
+
+    it_behaves_like 'empty command' do
+      let(:content) { '/estimate abc' }
+      let(:issuable) { issue }
+    end
+
+    it_behaves_like 'spend command' do
+      let(:content) { '/spend 1h' }
+      let(:issuable) { issue }
+    end
+
+    it_behaves_like 'spend command with negative time' do
+      let(:content) { '/spend -30m' }
+      let(:issuable) { issue }
+    end
+
+    it_behaves_like 'empty command' do
+      let(:content) { '/spend' }
+      let(:issuable) { issue }
+    end
+
+    it_behaves_like 'empty command' do
+      let(:content) { '/spend abc' }
+      let(:issuable) { issue }
+    end
+
+    it_behaves_like 'remove_estimate command' do
+      let(:content) { '/remove_estimate' }
+      let(:issuable) { issue }
+    end
+
+    it_behaves_like 'remove_time_spent command' do
+      let(:content) { '/remove_time_spent' }
+      let(:issuable) { issue }
+    end
+
     context 'when current_user cannot :admin_issue' do
       let(:visitor) { create(:user) }
       let(:issue) { create(:issue, project: project, author: visitor) }
diff --git a/spec/services/system_note_service_spec.rb b/spec/services/system_note_service_spec.rb
index 0e8adb68721..4042f2b0512 100644
--- a/spec/services/system_note_service_spec.rb
+++ b/spec/services/system_note_service_spec.rb
@@ -740,4 +740,69 @@ describe SystemNoteService, services: true do
       expect(note.note).to include(issue.to_reference)
     end
   end
+
+  describe '.change_time_estimate' do
+    subject { described_class.change_time_estimate(noteable, project, author) }
+
+    it_behaves_like 'a system note'
+
+    context 'with a time estimate' do
+      it 'sets the note text' do
+        noteable.update_attribute(:time_estimate, 277200)
+
+        expect(subject.note).to eq "Changed time estimate of this issue to 1w 4d 5h"
+      end
+    end
+
+    context 'without a time estimate' do
+      it 'sets the note text' do
+        expect(subject.note).to eq "Removed time estimate on this issue"
+      end
+    end
+  end
+
+  describe '.change_time_spent' do
+    # We need a custom noteable in order to the shared examples to be green.
+    let(:noteable) do
+      mr = create(:merge_request, source_project: project)
+      mr.spend_time(duration: 360000, user: author)
+      mr.save!
+      mr
+    end
+
+    subject do
+      described_class.change_time_spent(noteable, project, author)
+    end
+
+    it_behaves_like 'a system note'
+
+    context 'when time was added' do
+      it 'sets the note text' do
+        spend_time!(277200)
+
+        expect(subject.note).to eq "Added 1w 4d 5h of time spent on this merge request"
+      end
+    end
+
+    context 'when time was subtracted' do
+      it 'sets the note text' do
+        spend_time!(-277200)
+
+        expect(subject.note).to eq "Subtracted 1w 4d 5h of time spent on this merge request"
+      end
+    end
+
+    context 'when time was removed' do
+      it 'sets the note text' do
+        spend_time!(:reset)
+
+        expect(subject.note).to eq "Removed time spent on this merge request"
+      end
+    end
+
+    def spend_time!(seconds)
+      noteable.spend_time(duration: seconds, user: author)
+      noteable.save!
+    end
+  end
 end
diff --git a/spec/support/api/time_tracking_shared_examples.rb b/spec/support/api/time_tracking_shared_examples.rb
new file mode 100644
index 00000000000..210cd5817e0
--- /dev/null
+++ b/spec/support/api/time_tracking_shared_examples.rb
@@ -0,0 +1,132 @@
+shared_examples 'an unauthorized API user' do
+  it { is_expected.to eq(403) }
+end
+
+shared_examples 'time tracking endpoints' do |issuable_name|
+  issuable_collection_name = issuable_name.pluralize
+
+  describe "POST /projects/:id/#{issuable_collection_name}/:#{issuable_name}_id/time_estimate" do
+    context 'with an unauthorized user' do
+      subject { post(api("/projects/#{project.id}/#{issuable_collection_name}/#{issuable.id}/time_estimate", non_member), duration: '1w') }
+
+      it_behaves_like 'an unauthorized API user'
+    end
+
+    it "sets the time estimate for #{issuable_name}" do
+      post api("/projects/#{project.id}/#{issuable_collection_name}/#{issuable.id}/time_estimate", user), duration: '1w'
+
+      expect(response).to have_http_status(200)
+      expect(json_response['human_time_estimate']).to eq('1w')
+    end
+
+    describe 'updating the current estimate' do
+      before do
+        post api("/projects/#{project.id}/#{issuable_collection_name}/#{issuable.id}/time_estimate", user), duration: '1w'
+      end
+
+      context 'when duration has a bad format' do
+        it 'does not modify the original estimate' do
+          post api("/projects/#{project.id}/#{issuable_collection_name}/#{issuable.id}/time_estimate", user), duration: 'foo'
+
+          expect(response).to have_http_status(400)
+          expect(issuable.reload.human_time_estimate).to eq('1w')
+        end
+      end
+
+      context 'with a valid duration' do
+        it 'updates the estimate' do
+          post api("/projects/#{project.id}/#{issuable_collection_name}/#{issuable.id}/time_estimate", user), duration: '3w1h'
+
+          expect(response).to have_http_status(200)
+          expect(issuable.reload.human_time_estimate).to eq('3w 1h')
+        end
+      end
+    end
+  end
+
+  describe "POST /projects/:id/#{issuable_collection_name}/:#{issuable_name}_id/reset_time_estimate" do
+    context 'with an unauthorized user' do
+      subject { post(api("/projects/#{project.id}/#{issuable_collection_name}/#{issuable.id}/reset_time_estimate", non_member)) }
+
+      it_behaves_like 'an unauthorized API user'
+    end
+
+    it "resets the time estimate for #{issuable_name}" do
+      post api("/projects/#{project.id}/#{issuable_collection_name}/#{issuable.id}/reset_time_estimate", user)
+
+      expect(response).to have_http_status(200)
+      expect(json_response['time_estimate']).to eq(0)
+    end
+  end
+
+  describe "POST /projects/:id/#{issuable_collection_name}/:#{issuable_name}_id/add_spent_time" do
+    context 'with an unauthorized user' do
+      subject do
+        post api("/projects/#{project.id}/#{issuable_collection_name}/#{issuable.id}/add_spent_time", non_member),
+             duration: '2h'
+      end
+
+      it_behaves_like 'an unauthorized API user'
+    end
+
+    it "add spent time for #{issuable_name}" do
+      post api("/projects/#{project.id}/#{issuable_collection_name}/#{issuable.id}/add_spent_time", user),
+           duration: '2h'
+
+      expect(response).to have_http_status(201)
+      expect(json_response['human_total_time_spent']).to eq('2h')
+    end
+
+    context 'when subtracting time' do
+      it 'subtracts time of the total spent time' do
+        issuable.update_attributes!(spend_time: { duration: 7200, user: user })
+
+        post api("/projects/#{project.id}/#{issuable_collection_name}/#{issuable.id}/add_spent_time", user),
+             duration: '-1h'
+
+        expect(response).to have_http_status(201)
+        expect(json_response['total_time_spent']).to eq(3600)
+      end
+    end
+
+    context 'when time to subtract is greater than the total spent time' do
+      it 'does not modify the total time spent' do
+        issuable.update_attributes!(spend_time: { duration: 7200, user: user })
+
+        post api("/projects/#{project.id}/#{issuable_collection_name}/#{issuable.id}/add_spent_time", user),
+             duration: '-1w'
+
+        expect(response).to have_http_status(400)
+        expect(json_response['message']['time_spent'].first).to match(/exceeds the total time spent/)
+      end
+    end
+  end
+
+  describe "POST /projects/:id/#{issuable_collection_name}/:#{issuable_name}_id/reset_spent_time" do
+    context 'with an unauthorized user' do
+      subject { post(api("/projects/#{project.id}/#{issuable_collection_name}/#{issuable.id}/reset_spent_time", non_member)) }
+
+      it_behaves_like 'an unauthorized API user'
+    end
+
+    it "resets spent time for #{issuable_name}" do
+      post api("/projects/#{project.id}/#{issuable_collection_name}/#{issuable.id}/reset_spent_time", user)
+
+      expect(response).to have_http_status(200)
+      expect(json_response['total_time_spent']).to eq(0)
+    end
+  end
+
+  describe "GET /projects/:id/#{issuable_collection_name}/:#{issuable_name}_id/time_stats" do
+    it "returns the time stats for #{issuable_name}" do
+      issuable.update_attributes!(spend_time: { duration: 1800, user: user },
+                                  time_estimate: 3600)
+
+      get api("/projects/#{project.id}/#{issuable_collection_name}/#{issuable.id}/time_stats", user)
+
+      expect(response).to have_http_status(200)
+      expect(json_response['total_time_spent']).to eq(1800)
+      expect(json_response['time_estimate']).to eq(3600)
+    end
+  end
+end
diff --git a/spec/support/cycle_analytics_helpers/test_generation.rb b/spec/support/cycle_analytics_helpers/test_generation.rb
index 8e19a6c92e2..35b40d73191 100644
--- a/spec/support/cycle_analytics_helpers/test_generation.rb
+++ b/spec/support/cycle_analytics_helpers/test_generation.rb
@@ -2,7 +2,6 @@
 
 # Note: The ABC size is large here because we have a method generating test cases with
 #       multiple nested contexts. This shouldn't count as a violation.
-
 module CycleAnalyticsHelpers
   module TestGeneration
     # Generate the most common set of specs that all cycle analytics phases need to have.
@@ -51,7 +50,7 @@ module CycleAnalyticsHelpers
               end
 
               median_time_difference = time_differences.sort[2]
-              expect(subject.send(phase)).to be_within(5).of(median_time_difference)
+              expect(subject[phase].median).to be_within(5).of(median_time_difference)
             end
 
             context "when the data belongs to another project" do
@@ -83,7 +82,7 @@ module CycleAnalyticsHelpers
                 # Turn off the stub before checking assertions
                 allow(self).to receive(:project).and_call_original
 
-                expect(subject.send(phase)).to be_nil
+                expect(subject[phase].median).to be_nil
               end
             end
 
@@ -106,7 +105,7 @@ module CycleAnalyticsHelpers
 
                 Timecop.freeze(end_time + 1.day) { post_fn[self, data] } if post_fn
 
-                expect(subject.send(phase)).to be_nil
+                expect(subject[phase].median).to be_nil
               end
             end
           end
@@ -126,7 +125,7 @@ module CycleAnalyticsHelpers
                 Timecop.freeze(end_time + 1.day) { post_fn[self, data] } if post_fn
               end
 
-              expect(subject.send(phase)).to be_nil
+              expect(subject[phase].median).to be_nil
             end
           end
         end
@@ -145,7 +144,7 @@ module CycleAnalyticsHelpers
                 post_fn[self, data] if post_fn
               end
 
-              expect(subject.send(phase)).to be_nil
+              expect(subject[phase].median).to be_nil
             end
           end
         end
@@ -153,7 +152,7 @@ module CycleAnalyticsHelpers
 
       context "when none of the start / end conditions are matched" do
         it "returns nil" do
-          expect(subject.send(phase)).to be_nil
+          expect(subject[phase].median).to be_nil
         end
       end
     end
diff --git a/spec/support/time_tracking_shared_examples.rb b/spec/support/time_tracking_shared_examples.rb
new file mode 100644
index 00000000000..02657684b57
--- /dev/null
+++ b/spec/support/time_tracking_shared_examples.rb
@@ -0,0 +1,82 @@
+shared_examples 'issuable time tracker' do
+  it 'renders the sidebar component empty state' do
+    page.within '.time-tracking-no-tracking-pane' do
+      expect(page).to have_content 'No estimate or time spent'
+    end
+  end
+
+  it 'updates the sidebar component when estimate is added' do
+    submit_time('/estimate 3w 1d 1h')
+
+    page.within '.time-tracking-estimate-only-pane' do
+      expect(page).to have_content '3w 1d 1h'
+    end
+  end
+
+  it 'updates the sidebar component when spent is added' do
+    submit_time('/spend 3w 1d 1h')
+
+    page.within '.time-tracking-spend-only-pane' do
+      expect(page).to have_content '3w 1d 1h'
+    end
+  end
+
+  it 'shows the comparison when estimate and spent are added' do
+    submit_time('/estimate 3w 1d 1h')
+    submit_time('/spend 3w 1d 1h')
+
+    page.within '.time-tracking-comparison-pane' do
+      expect(page).to have_content '3w 1d 1h'
+    end
+  end
+
+  it 'updates the sidebar component when estimate is removed' do
+    submit_time('/estimate 3w 1d 1h')
+    submit_time('/remove_estimate')
+
+    page.within '#issuable-time-tracker' do
+      expect(page).to have_content 'No estimate or time spent'
+    end
+  end
+
+  it 'updates the sidebar component when spent is removed' do
+    submit_time('/spend 3w 1d 1h')
+    submit_time('/remove_time_spent')
+
+    page.within '#issuable-time-tracker' do
+      expect(page).to have_content 'No estimate or time spent'
+    end
+  end
+
+  it 'shows the help state when icon is clicked' do
+    page.within '#issuable-time-tracker' do
+      find('.help-button').click
+      expect(page).to have_content 'Track time with slash commands'
+      expect(page).to have_content 'Learn more'
+    end
+  end
+
+  it 'hides the help state when close icon is clicked' do
+    page.within '#issuable-time-tracker' do
+      find('.help-button').click
+      find('.close-help-button').click
+
+      expect(page).not_to have_content 'Track time with slash commands'
+      expect(page).not_to have_content 'Learn more'
+    end
+  end
+
+  it 'displays the correct help url' do
+    page.within '#issuable-time-tracker' do
+      find('.help-button').click
+
+      expect(find_link('Learn more')[:href]).to have_content('/help/workflow/time_tracking.md')
+    end
+  end
+end
+
+def submit_time(slash_command)
+  fill_in 'note[note]', with: slash_command
+  click_button 'Comment'
+  wait_for_ajax
+end