Merge branch 'build-statuses' into 'master'

Detailed build statuses

## What does this MR do?

Implements detailed statuses for `Ci::Builds` and `CommitStatus`.

It also adds a new icon for manual build.

## Screenshots

![manual_builds_icon](/uploads/22b5c594350856c85398ef705a635f8b/manual_builds_icon.png)

## What are the relevant issue numbers?

See #24273, closes #22642

See merge request !7989

16 files changed, 284 insertions, 43 deletions

diff --git a/lib/gitlab/allowable.rb b/lib/gitlab/allowable.rb
new file mode 100644
index 00000000000..f48abcc86d5
--- /dev/null
+++ b/lib/gitlab/allowable.rb
@@ -0,0 +1,7 @@
+module Gitlab
+  module Allowable
+    def can?(user, action, subject)
+      Ability.allowed?(user, action, subject)
+    end
+  end
+end
diff --git a/lib/gitlab/ci/status/build/cancelable.rb b/lib/gitlab/ci/status/build/cancelable.rb
new file mode 100644
index 00000000000..a979fe7d573
--- /dev/null
+++ b/lib/gitlab/ci/status/build/cancelable.rb
@@ -0,0 +1,37 @@
+module Gitlab
+  module Ci
+    module Status
+      module Build
+        class Cancelable < SimpleDelegator
+          include Status::Extended
+
+          def has_action?
+            can?(user, :update_build, subject)
+          end
+
+          def action_icon
+            'ban'
+          end
+
+          def action_path
+            cancel_namespace_project_build_path(subject.project.namespace,
+                                                subject.project,
+                                                subject)
+          end
+
+          def action_method
+            :post
+          end
+
+          def action_title
+            'Cancel'
+          end
+
+          def self.matches?(build, user)
+            build.cancelable?
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/ci/status/build/common.rb b/lib/gitlab/ci/status/build/common.rb
new file mode 100644
index 00000000000..3fec2c5d4db
--- /dev/null
+++ b/lib/gitlab/ci/status/build/common.rb
@@ -0,0 +1,19 @@
+module Gitlab
+  module Ci
+    module Status
+      module Build
+        module Common
+          def has_details?
+            can?(user, :read_build, subject)
+          end
+
+          def details_path
+            namespace_project_build_path(subject.project.namespace,
+                                         subject.project,
+                                         subject)
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/ci/status/build/factory.rb b/lib/gitlab/ci/status/build/factory.rb
new file mode 100644
index 00000000000..eee9a64120b
--- /dev/null
+++ b/lib/gitlab/ci/status/build/factory.rb
@@ -0,0 +1,18 @@
+module Gitlab
+  module Ci
+    module Status
+      module Build
+        class Factory < Status::Factory
+          def self.extended_statuses
+            [Status::Build::Stop, Status::Build::Play,
+             Status::Build::Cancelable, Status::Build::Retryable]
+          end
+
+          def self.common_helpers
+            Status::Build::Common
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/ci/status/build/play.rb b/lib/gitlab/ci/status/build/play.rb
new file mode 100644
index 00000000000..5c506e6d59f
--- /dev/null
+++ b/lib/gitlab/ci/status/build/play.rb
@@ -0,0 +1,53 @@
+module Gitlab
+  module Ci
+    module Status
+      module Build
+        class Play < SimpleDelegator
+          include Status::Extended
+
+          def text
+            'manual'
+          end
+
+          def label
+            'manual play action'
+          end
+
+          def icon
+            'icon_status_manual'
+          end
+
+          def has_action?
+            can?(user, :update_build, subject)
+          end
+
+          def action_icon
+            'play'
+          end
+
+          def action_title
+            'Play'
+          end
+
+          def action_class
+            'ci-play-icon'
+          end
+
+          def action_path
+            play_namespace_project_build_path(subject.project.namespace,
+                                              subject.project,
+                                              subject)
+          end
+
+          def action_method
+            :post
+          end
+
+          def self.matches?(build, user)
+            build.playable? && !build.stops_environment?
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/ci/status/build/retryable.rb b/lib/gitlab/ci/status/build/retryable.rb
new file mode 100644
index 00000000000..8e38d6a8523
--- /dev/null
+++ b/lib/gitlab/ci/status/build/retryable.rb
@@ -0,0 +1,37 @@
+module Gitlab
+  module Ci
+    module Status
+      module Build
+        class Retryable < SimpleDelegator
+          include Status::Extended
+
+          def has_action?
+            can?(user, :update_build, subject)
+          end
+
+          def action_icon
+            'refresh'
+          end
+
+          def action_title
+            'Retry'
+          end
+
+          def action_path
+            retry_namespace_project_build_path(subject.project.namespace,
+                                               subject.project,
+                                               subject)
+          end
+
+          def action_method
+            :post
+          end
+
+          def self.matches?(build, user)
+            build.retryable?
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/ci/status/build/stop.rb b/lib/gitlab/ci/status/build/stop.rb
new file mode 100644
index 00000000000..f8ffa95cde4
--- /dev/null
+++ b/lib/gitlab/ci/status/build/stop.rb
@@ -0,0 +1,49 @@
+module Gitlab
+  module Ci
+    module Status
+      module Build
+        class Stop < SimpleDelegator
+          include Status::Extended
+
+          def text
+            'manual'
+          end
+
+          def label
+            'manual stop action'
+          end
+
+          def icon
+            'icon_status_manual'
+          end
+
+          def has_action?
+            can?(user, :update_build, subject)
+          end
+
+          def action_icon
+            'stop'
+          end
+
+          def action_title
+            'Stop'
+          end
+
+          def action_path
+            play_namespace_project_build_path(subject.project.namespace,
+                                              subject.project,
+                                              subject)
+          end
+
+          def action_method
+            :post
+          end
+
+          def self.matches?(build, user)
+            build.playable? && build.stops_environment?
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/ci/status/core.rb b/lib/gitlab/ci/status/core.rb
index ce4108fdcf2..46fef8262c1 100644
--- a/lib/gitlab/ci/status/core.rb
+++ b/lib/gitlab/ci/status/core.rb
@@ -4,10 +4,14 @@ module Gitlab
       # Base abstract class fore core status
       #
       class Core
-        include Gitlab::Routing.url_helpers
+        include Gitlab::Routing
+        include Gitlab::Allowable
 
-        def initialize(subject)
+        attr_reader :subject, :user
+
+        def initialize(subject, user)
           @subject = subject
+          @user = user
         end
 
         def icon
@@ -18,10 +22,6 @@ module Gitlab
           raise NotImplementedError
         end
 
-        def title
-          "#{@subject.class.name.demodulize}: #{label}"
-        end
-
         # Deprecation warning: this method is here because we need to maintain
         # backwards compatibility with legacy statuses. We often do something
         # like "ci-status ci-status-#{status}" to set CSS class.
@@ -34,7 +34,7 @@ module Gitlab
         end
 
         def has_details?
-          raise NotImplementedError
+          false
         end
 
         def details_path
@@ -42,16 +42,27 @@ module Gitlab
         end
 
         def has_action?
-          raise NotImplementedError
+          false
         end
 
         def action_icon
           raise NotImplementedError
         end
 
+        def action_class
+        end
+
         def action_path
           raise NotImplementedError
         end
+
+        def action_method
+          raise NotImplementedError
+        end
+
+        def action_title
+          raise NotImplementedError
+        end
       end
     end
   end
diff --git a/lib/gitlab/ci/status/extended.rb b/lib/gitlab/ci/status/extended.rb
index 6bfb5d38c1f..d367c9bda69 100644
--- a/lib/gitlab/ci/status/extended.rb
+++ b/lib/gitlab/ci/status/extended.rb
@@ -2,8 +2,12 @@ module Gitlab
   module Ci
     module Status
       module Extended
-        def matches?(_subject)
-          raise NotImplementedError
+        extend ActiveSupport::Concern
+
+        class_methods do
+          def matches?(_subject, _user)
+            raise NotImplementedError
+          end
         end
       end
     end
diff --git a/lib/gitlab/ci/status/factory.rb b/lib/gitlab/ci/status/factory.rb
index b2f896f2211..ae9ef895df4 100644
--- a/lib/gitlab/ci/status/factory.rb
+++ b/lib/gitlab/ci/status/factory.rb
@@ -2,10 +2,9 @@ module Gitlab
   module Ci
     module Status
       class Factory
-        attr_reader :subject
-
-        def initialize(subject)
+        def initialize(subject, user)
           @subject = subject
+          @user = user
         end
 
         def fabricate!
@@ -16,27 +15,32 @@ module Gitlab
           end
         end
 
+        def self.extended_statuses
+          []
+        end
+
+        def self.common_helpers
+          Module.new
+        end
+
         private
 
-        def subject_status
-          @subject_status ||= subject.status
+        def simple_status
+          @simple_status ||= @subject.status || :created
         end
 
         def core_status
           Gitlab::Ci::Status
-            .const_get(subject_status.capitalize)
-            .new(subject)
+            .const_get(simple_status.capitalize)
+            .new(@subject, @user)
+            .extend(self.class.common_helpers)
         end
 
         def extended_status
-          @extended ||= extended_statuses.find do |status|
-            status.matches?(subject)
+          @extended ||= self.class.extended_statuses.find do |status|
+            status.matches?(@subject, @user)
           end
         end
-
-        def extended_statuses
-          []
-        end
       end
     end
   end
diff --git a/lib/gitlab/ci/status/pipeline/common.rb b/lib/gitlab/ci/status/pipeline/common.rb
index 25e52bec3da..76bfd18bf40 100644
--- a/lib/gitlab/ci/status/pipeline/common.rb
+++ b/lib/gitlab/ci/status/pipeline/common.rb
@@ -4,13 +4,13 @@ module Gitlab
       module Pipeline
         module Common
           def has_details?
-            true
+            can?(user, :read_pipeline, subject)
           end
 
           def details_path
-            namespace_project_pipeline_path(@subject.project.namespace,
-                                            @subject.project,
-                                            @subject)
+            namespace_project_pipeline_path(subject.project.namespace,
+                                            subject.project,
+                                            subject)
           end
 
           def has_action?
diff --git a/lib/gitlab/ci/status/pipeline/factory.rb b/lib/gitlab/ci/status/pipeline/factory.rb
index 4ac4ec671d0..16dcb326be9 100644
--- a/lib/gitlab/ci/status/pipeline/factory.rb
+++ b/lib/gitlab/ci/status/pipeline/factory.rb
@@ -3,14 +3,12 @@ module Gitlab
     module Status
       module Pipeline
         class Factory < Status::Factory
-          private
-
-          def extended_statuses
+          def self.extended_statuses
             [Pipeline::SuccessWithWarnings]
           end
 
-          def core_status
-            super.extend(Status::Pipeline::Common)
+          def self.common_helpers
+            Status::Pipeline::Common
           end
         end
       end
diff --git a/lib/gitlab/ci/status/pipeline/success_with_warnings.rb b/lib/gitlab/ci/status/pipeline/success_with_warnings.rb
index 4b040d60df8..a7c98f9e909 100644
--- a/lib/gitlab/ci/status/pipeline/success_with_warnings.rb
+++ b/lib/gitlab/ci/status/pipeline/success_with_warnings.rb
@@ -3,7 +3,7 @@ module Gitlab
     module Status
       module Pipeline
         class SuccessWithWarnings < SimpleDelegator
-          extend Status::Extended
+          include Status::Extended
 
           def text
             'passed'
@@ -21,7 +21,7 @@ module Gitlab
             'success_with_warnings'
           end
 
-          def self.matches?(pipeline)
+          def self.matches?(pipeline, user)
             pipeline.success? && pipeline.has_warnings?
           end
         end
diff --git a/lib/gitlab/ci/status/stage/common.rb b/lib/gitlab/ci/status/stage/common.rb
index 14c437d2b98..7852f492e1d 100644
--- a/lib/gitlab/ci/status/stage/common.rb
+++ b/lib/gitlab/ci/status/stage/common.rb
@@ -4,14 +4,14 @@ module Gitlab
       module Stage
         module Common
           def has_details?
-            true
+            can?(user, :read_pipeline, subject.pipeline)
           end
 
           def details_path
-            namespace_project_pipeline_path(@subject.project.namespace,
-                                            @subject.project,
-                                            @subject.pipeline,
-                                            anchor: @subject.name)
+            namespace_project_pipeline_path(subject.project.namespace,
+                                            subject.project,
+                                            subject.pipeline,
+                                            anchor: subject.name)
           end
 
           def has_action?
diff --git a/lib/gitlab/ci/status/stage/factory.rb b/lib/gitlab/ci/status/stage/factory.rb
index c6522d5ada1..689a5dd45bc 100644
--- a/lib/gitlab/ci/status/stage/factory.rb
+++ b/lib/gitlab/ci/status/stage/factory.rb
@@ -3,10 +3,8 @@ module Gitlab
     module Status
       module Stage
         class Factory < Status::Factory
-          private
-
-          def core_status
-            super.extend(Status::Stage::Common)
+          def self.common_helpers
+            Status::Stage::Common
           end
         end
       end
diff --git a/lib/gitlab/routing.rb b/lib/gitlab/routing.rb
index 5132177de51..632e2d87500 100644
--- a/lib/gitlab/routing.rb
+++ b/lib/gitlab/routing.rb
@@ -1,5 +1,11 @@
 module Gitlab
   module Routing
+    extend ActiveSupport::Concern
+
+    included do
+      include Gitlab::Routing.url_helpers
+    end
+
     # Returns the URL helpers Module.
     #
     # This method caches the output as Rails' "url_helpers" method creates an