Add latest changes from gitlab-org/gitlab@master

23 files changed, 288 insertions, 71 deletions

diff --git a/app/assets/javascripts/vue_shared/components/file_row.vue b/app/assets/javascripts/vue_shared/components/file_row.vue
index e3a606571c0..0a5cc7b693c 100644
--- a/app/assets/javascripts/vue_shared/components/file_row.vue
+++ b/app/assets/javascripts/vue_shared/components/file_row.vue
@@ -111,6 +111,7 @@ export default {
     v-else
     :class="fileClass"
     :title="textForTitle"
+    :data-level="level"
     class="file-row"
     role="button"
     @click="clickFile"
diff --git a/app/models/ci/pipeline.rb b/app/models/ci/pipeline.rb
index 3ce44a066ae..8a3ca2e758c 100644
--- a/app/models/ci/pipeline.rb
+++ b/app/models/ci/pipeline.rb
@@ -736,6 +736,7 @@ module Ci
           MergeRequest.where(id: merge_request_id)
         else
           MergeRequest.where(source_project_id: project_id, source_branch: ref)
+            .by_commit_sha(sha)
         end
     end
 
diff --git a/app/models/project_services/prometheus_service.rb b/app/models/project_services/prometheus_service.rb
index 30dfcc11417..1a85289a04f 100644
--- a/app/models/project_services/prometheus_service.rb
+++ b/app/models/project_services/prometheus_service.rb
@@ -153,6 +153,6 @@ class PrometheusService < MonitoringService
   def create_default_alerts
     return unless project_id
 
-    Prometheus::CreateDefaultAlertsWorker.perform_async(project_id: project_id)
+    Prometheus::CreateDefaultAlertsWorker.perform_async(project_id)
   end
 end
diff --git a/changelogs/unreleased/filter-pipeline-merge-requests-by-sha.yml b/changelogs/unreleased/filter-pipeline-merge-requests-by-sha.yml
new file mode 100644
index 00000000000..3dc1fbfac02
--- /dev/null
+++ b/changelogs/unreleased/filter-pipeline-merge-requests-by-sha.yml
@@ -0,0 +1,5 @@
+---
+title: Prevent false positives in Ci::Pipeline#all_merge_requests
+merge_request: 28800
+author:
+type: fixed
diff --git a/doc/administration/geo/replication/version_specific_updates.md b/doc/administration/geo/replication/version_specific_updates.md
index a697d07ded4..3c047c8374a 100644
--- a/doc/administration/geo/replication/version_specific_updates.md
+++ b/doc/administration/geo/replication/version_specific_updates.md
@@ -4,6 +4,13 @@ Check this document if it includes instructions for the version you are updating
 These steps go together with the [general steps](updating_the_geo_nodes.md#general-update-steps)
 for updating Geo nodes.
 
+## Updating to GitLab 12.9
+
+CAUTION: **Warning:**
+GitLab 12.9.0 through GitLab 12.9.3 are affected by [a bug that stops
+repository verification](https://gitlab.com/gitlab-org/gitlab/-/issues/213523).
+The issue is fixed in GitLab 12.9.4. Please upgrade to GitLab 12.9.4 or later.
+
 ## Updating to GitLab 12.7
 
 DANGER: **Danger:**
diff --git a/doc/development/documentation/site_architecture/index.md b/doc/development/documentation/site_architecture/index.md
index bd870399978..56dd3821b1c 100644
--- a/doc/development/documentation/site_architecture/index.md
+++ b/doc/development/documentation/site_architecture/index.md
@@ -20,29 +20,27 @@ from where content is sourced, the `gitlab-docs` project, and the published outp
 
 ```mermaid
   graph LR
-    A[gitlab-foss/doc]
-    B[gitlab/doc]
-    C[gitlab-runner/docs]
-    D[omnibus-gitlab/doc]
-    E[charts/doc]
-    F[gitlab-docs]
-    A --> F
-    B --> F
-    C --> F
-    D --> F
-    E --> F
-    F -- Build pipeline --> G
-    G[docs.gitlab.com]
-    H[/ce/]
-    I[/ee/]
-    J[/runner/]
-    K[/omnibus/]
-    L[/charts/]
-    G --> H
-    G --> I
-    G --> J
-    G --> K
-    G --> L
+    A[gitlab/doc]
+    B[gitlab-runner/docs]
+    C[omnibus-gitlab/doc]
+    D[charts/doc]
+    E[gitlab-docs]
+    A --> E
+    B --> E
+    C --> E
+    D --> E
+    E -- Build pipeline --> F
+    F[docs.gitlab.com]
+    G[/ce/]
+    H[/ee/]
+    I[/runner/]
+    J[/omnibus/]
+    K[/charts/]
+    F --> H
+    F --> I
+    F --> J
+    F --> K
+    H -- symlink --> G
 ```
 
 You will not find any GitLab docs content in the `gitlab-docs` repository.
diff --git a/doc/development/elasticsearch.md b/doc/development/elasticsearch.md
index feff0ba7c8a..b6f863b8bea 100644
--- a/doc/development/elasticsearch.md
+++ b/doc/development/elasticsearch.md
@@ -60,12 +60,15 @@ Please see the `sha_tokenizer` explanation later below for an example.
 
 #### `code_analyzer`
 
-Used when indexing a blob's filename and content. Uses the `whitespace` tokenizer and the filters: `code`, `edgeNGram_filter`, `lowercase`, and `asciifolding`
+Used when indexing a blob's filename and content. Uses the `whitespace` tokenizer and the filters: [`code`](#code), [`edgeNGram_filter`](#edgengram_filter), `lowercase`, and `asciifolding`
 
 The `whitespace` tokenizer was selected in order to have more control over how tokens are split. For example the string `Foo::bar(4)` needs to generate tokens like `Foo` and `bar(4)` in order to be properly searched.
 
 Please see the `code` filter for an explanation on how tokens are split.
 
+NOTE: **Known Issues**:
+Currently the [Elasticsearch code_analyzer doesn't account for all code cases](../integration/elasticsearch.md#known-issues).
+
 #### `code_search_analyzer`
 
 Not directly used for indexing, but rather used to transform a search input. Uses the `whitespace` tokenizer and the `lowercase` and `asciifolding` filters.
diff --git a/doc/integration/elasticsearch.md b/doc/integration/elasticsearch.md
index 48f39ea4bc9..fe7c3855d9a 100644
--- a/doc/integration/elasticsearch.md
+++ b/doc/integration/elasticsearch.md
@@ -634,6 +634,14 @@ Here are some common pitfalls and how to overcome them:
    You probably have not used either `http://` or `https://` as part of your value in the **"URL"** field of the Elasticseach Integration Menu. Please make sure you are using either `http://` or `https://` in this field as the [Elasticsearch client for Go](https://github.com/olivere/elastic) that we are using [needs the prefix for the URL to be accepted as valid](https://github.com/olivere/elastic/commit/a80af35aa41856dc2c986204e2b64eab81ccac3a).
    Once you have corrected the formatting of the URL, delete the index (via the [dedicated Rake task](#gitlab-elasticsearch-rake-tasks)) and [reindex the content of your instance](#adding-gitlabs-data-to-the-elasticsearch-index).
 
+### Known Issues
+
+- **[Elasticsearch `code_analyzer` doesn't account for all code cases](https://gitlab.com/gitlab-org/gitlab/issues/10693)**
+
+   The `code_analyzer` pattern and filter configuration is being evaluated for improvement. We have noticed [several edge cases](https://gitlab.com/gitlab-org/gitlab/-/issues/10693#note_158382332) that are not returning expected search results due to our pattern and filter configuration.
+
+   An improved strategy for the `code_analyzer` pattern and filters are being discussed in [issue 29443](https://gitlab.com/gitlab-org/gitlab/-/issues/29443).
+
 ### Reverting to basic search
 
 Sometimes there may be issues with your Elasticsearch index data and as such
diff --git a/doc/subscriptions/index.md b/doc/subscriptions/index.md
index f3488b45bbb..12d5aa1e29f 100644
--- a/doc/subscriptions/index.md
+++ b/doc/subscriptions/index.md
@@ -448,7 +448,7 @@ of the group/namespace. You can [purchase additional CI minutes](#purchasing-add
 
 If you're using GitLab.com, you can purchase additional CI minutes so your
 pipelines won't be blocked after you have used all your CI minutes from your
-main quota. Additional minutes:
+main quota. You can find pricing for additional CI/CD minutes in the [GitLab Customers Portal](https://customers.gitlab.com/plans). Additional minutes:
 
 - Are only used once the shared quota included in your subscription runs out.
 - Roll over month to month.
diff --git a/doc/user/application_security/dast/index.md b/doc/user/application_security/dast/index.md
index 57d2a383768..c9c7129dd7b 100644
--- a/doc/user/application_security/dast/index.md
+++ b/doc/user/application_security/dast/index.md
@@ -148,6 +148,9 @@ The results will be saved as a
 that you can later download and analyze.
 Due to implementation limitations, we always take the latest DAST artifact available.
 
+DANGER: **Danger:**
+**DO NOT** run an authenticated scan against a production server. When an authenticated scan is run, it may perform *any* function that the authenticated user can. This includes modifying and deleting data, submitting forms, following links, and so on. Only run an authenticated scan against a test server.
+
 ### Full scan
 
 DAST can be configured to perform [ZAP Full Scan](https://github.com/zaproxy/zaproxy/wiki/ZAP-Full-Scan), which
diff --git a/lib/gitlab/set_cache.rb b/lib/gitlab/set_cache.rb
index d1151a431bb..e891b805879 100644
--- a/lib/gitlab/set_cache.rb
+++ b/lib/gitlab/set_cache.rb
@@ -64,7 +64,9 @@ module Gitlab
       else
         redis.del(*keys)
       end
-    rescue ::Redis::CommandError
+    rescue ::Redis::CommandError => e
+      Gitlab::ErrorTracking.log_exception(e)
+
       redis.del(*keys)
     end
   end
diff --git a/spec/factories/ci/pipelines.rb b/spec/factories/ci/pipelines.rb
index e0478097148..257dd3337ba 100644
--- a/spec/factories/ci/pipelines.rb
+++ b/spec/factories/ci/pipelines.rb
@@ -5,7 +5,7 @@ FactoryBot.define do
   factory :ci_empty_pipeline, class: 'Ci::Pipeline' do
     source { :push }
     ref { 'master' }
-    sha { '97de212e80737a608d939f648d959671fb0a0142' }
+    sha { 'b83d6e391c22777fca1ed3012fce84f633d7fed0' }
     status { 'pending' }
     add_attribute(:protected) { false }
 
diff --git a/spec/features/dashboard/projects_spec.rb b/spec/features/dashboard/projects_spec.rb
index 73f759f8a54..218cbf871a9 100644
--- a/spec/features/dashboard/projects_spec.rb
+++ b/spec/features/dashboard/projects_spec.rb
@@ -244,13 +244,15 @@ describe 'Dashboard Projects' do
 
     ActiveRecord::QueryRecorder.new { visit dashboard_projects_path }.count
 
-    # There are three known N+1 queries:
+    # There are seven known N+1 queries: https://gitlab.com/gitlab-org/gitlab/-/issues/214037
     # 1. Project#open_issues_count
     # 2. Project#open_merge_requests_count
     # 3. Project#forks_count
-    #
-    # In addition, ProjectsHelper#load_pipeline_status also adds an
-    # additional query.
-    expect { visit dashboard_projects_path }.not_to exceed_query_limit(control_count + 4)
+    # 4. ProjectsHelper#load_pipeline_status
+    # 5. RendersMemberAccess#preload_max_member_access_for_collection
+    # 6. User#max_member_access_for_project_ids
+    # 7. CommitWithPipeline#last_pipeline
+
+    expect { visit dashboard_projects_path }.not_to exceed_query_limit(control_count + 7)
   end
 end
diff --git a/spec/features/ide/user_commits_changes_spec.rb b/spec/features/ide/user_commits_changes_spec.rb
new file mode 100644
index 00000000000..f53abde1523
--- /dev/null
+++ b/spec/features/ide/user_commits_changes_spec.rb
@@ -0,0 +1,33 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe 'IDE user commits changes', :js do
+  include WebIdeSpecHelpers
+
+  let(:project) { create(:project, :public, :repository) }
+  let(:user) { project.owner }
+
+  before do
+    sign_in(user)
+
+    ide_visit(project)
+  end
+
+  it 'user updates nested files' do
+    content = <<~HEREDOC
+      Lorem ipsum
+      Dolar sit
+      Amit
+    HEREDOC
+
+    ide_create_new_file('foo/bar/lorem_ipsum.md', content: content)
+    ide_delete_file('foo/bar/.gitkeep')
+
+    ide_commit
+
+    expect(page).to have_content('All changes are committed')
+    expect(project.repository.blob_at('master', 'foo/bar/.gitkeep')).to be_nil
+    expect(project.repository.blob_at('master', 'foo/bar/lorem_ipsum.md').data).to eql(content)
+  end
+end
diff --git a/spec/features/projects/pipelines/pipeline_spec.rb b/spec/features/projects/pipelines/pipeline_spec.rb
index 561c0552007..e8846b5b617 100644
--- a/spec/features/projects/pipelines/pipeline_spec.rb
+++ b/spec/features/projects/pipelines/pipeline_spec.rb
@@ -133,15 +133,8 @@ describe 'Pipeline', :js do
 
       context 'when there are two related merge requests' do
         before do
-          create(:merge_request,
-            source_project: project,
-            source_branch: pipeline.ref,
-            target_branch: 'feature-1')
-
-          create(:merge_request,
-            source_project: project,
-            source_branch: pipeline.ref,
-            target_branch: 'feature-2')
+          create(:merge_request, source_project: project, source_branch: pipeline.ref)
+          create(:merge_request, source_project: project, source_branch: pipeline.ref, target_branch: 'fix')
         end
 
         it 'links to the most recent related merge request' do
diff --git a/spec/graphql/resolvers/merge_request_pipelines_resolver_spec.rb b/spec/graphql/resolvers/merge_request_pipelines_resolver_spec.rb
index 02c6409a9a6..b894dce3e17 100644
--- a/spec/graphql/resolvers/merge_request_pipelines_resolver_spec.rb
+++ b/spec/graphql/resolvers/merge_request_pipelines_resolver_spec.rb
@@ -14,7 +14,7 @@ describe Resolvers::MergeRequestPipelinesResolver do
       sha: merge_request.diff_head_sha
     )
   end
-  let_it_be(:other_project_pipeline) { create(:ci_pipeline, project: merge_request.source_project) }
+  let_it_be(:other_project_pipeline) { create(:ci_pipeline, project: merge_request.source_project, ref: 'other-ref') }
   let_it_be(:other_pipeline) { create(:ci_pipeline) }
   let(:current_user) { create(:user) }
 
diff --git a/spec/lib/gitlab/repository_set_cache_spec.rb b/spec/lib/gitlab/repository_set_cache_spec.rb
index 6221d6fb45f..b09194e7d0b 100644
--- a/spec/lib/gitlab/repository_set_cache_spec.rb
+++ b/spec/lib/gitlab/repository_set_cache_spec.rb
@@ -103,6 +103,12 @@ describe Gitlab::RepositorySetCache, :clean_gitlab_redis_cache do
         expect(cache.expire(:foo)).to eq(1)
         expect(cache.read(:foo)).to be_empty
       end
+
+      it 'logs the failure' do
+        expect(Gitlab::ErrorTracking).to receive(:log_exception)
+
+        cache.expire(:foo)
+      end
     end
   end
 
diff --git a/spec/models/ci/pipeline_spec.rb b/spec/models/ci/pipeline_spec.rb
index 844e50dbb58..90412136c1d 100644
--- a/spec/models/ci/pipeline_spec.rb
+++ b/spec/models/ci/pipeline_spec.rb
@@ -2367,18 +2367,31 @@ describe Ci::Pipeline, :mailer do
     end
   end
 
-  describe "#all_merge_requests" do
+  describe '#all_merge_requests' do
     let(:project) { create(:project) }
 
     shared_examples 'a method that returns all merge requests for a given pipeline' do
       let(:pipeline) { create(:ci_empty_pipeline, status: 'created', project: pipeline_project, ref: 'master') }
 
-      it "returns all merge requests having the same source branch" do
+      it 'returns all merge requests having the same source branch and the pipeline sha' do
         merge_request = create(:merge_request, source_project: pipeline_project, target_project: project, source_branch: pipeline.ref)
 
+        create(:merge_request_diff, merge_request: merge_request).tap do |diff|
+          create(:merge_request_diff_commit, merge_request_diff: diff, sha: pipeline.sha)
+        end
+
         expect(pipeline.all_merge_requests).to eq([merge_request])
       end
 
+      it "doesn't return merge requests having the same source branch without the pipeline sha" do
+        merge_request = create(:merge_request, source_project: pipeline_project, target_project: project, source_branch: pipeline.ref)
+        create(:merge_request_diff, merge_request: merge_request).tap do |diff|
+          create(:merge_request_diff_commit, merge_request_diff: diff, sha: 'unrelated')
+        end
+
+        expect(pipeline.all_merge_requests).to be_empty
+      end
+
       it "doesn't return merge requests having a different source branch" do
         create(:merge_request, source_project: pipeline_project, target_project: project, source_branch: 'feature', target_branch: 'master')
 
diff --git a/spec/models/project_services/prometheus_service_spec.rb b/spec/models/project_services/prometheus_service_spec.rb
index 415d634d405..5565d30d8c1 100644
--- a/spec/models/project_services/prometheus_service_spec.rb
+++ b/spec/models/project_services/prometheus_service_spec.rb
@@ -133,7 +133,7 @@ describe PrometheusService, :use_clean_rails_memory_store_caching do
       it 'creates default alerts' do
         expect(Prometheus::CreateDefaultAlertsWorker)
           .to receive(:perform_async)
-          .with(project_id: project.id)
+          .with(project.id)
 
         create_service
       end
diff --git a/spec/presenters/ci/pipeline_presenter_spec.rb b/spec/presenters/ci/pipeline_presenter_spec.rb
index 28eb6804703..e8b66682b97 100644
--- a/spec/presenters/ci/pipeline_presenter_spec.rb
+++ b/spec/presenters/ci/pipeline_presenter_spec.rb
@@ -236,7 +236,7 @@ describe Ci::PipelinePresenter do
 
     context 'for a branch pipeline with two open MRs' do
       let!(:one) { create(:merge_request, source_project: project, source_branch: pipeline.ref) }
-      let!(:two) { create(:merge_request, source_project: project, source_branch: pipeline.ref, target_branch: 'wip') }
+      let!(:two) { create(:merge_request, source_project: project, source_branch: pipeline.ref, target_branch: 'fix') }
 
       it { is_expected.to contain_exactly(one, two) }
     end
diff --git a/spec/serializers/build_details_entity_spec.rb b/spec/serializers/build_details_entity_spec.rb
index 15f605b183d..92917f6ea25 100644
--- a/spec/serializers/build_details_entity_spec.rb
+++ b/spec/serializers/build_details_entity_spec.rb
@@ -15,7 +15,7 @@ describe BuildDetailsEntity do
     let(:project) { create(:project, :repository) }
     let(:pipeline) { create(:ci_pipeline, project: project) }
     let(:build) { create(:ci_build, :failed, pipeline: pipeline) }
-    let(:request) { double('request') }
+    let(:request) { double('request', project: project) }
 
     let(:entity) do
       described_class.new(build, request: request,
diff --git a/spec/services/issues/create_service_spec.rb b/spec/services/issues/create_service_spec.rb
index a316c8a4219..bd50d6b1001 100644
--- a/spec/services/issues/create_service_spec.rb
+++ b/spec/services/issues/create_service_spec.rb
@@ -368,10 +368,12 @@ describe Issues::CreateService do
     end
 
     context 'checking spam' do
+      let(:title) { 'Legit issue' }
+      let(:description) { 'please fix' }
       let(:opts) do
         {
-          title: 'Awesome issue',
-          description: 'please fix',
+          title: title,
+          description: description,
           request: double(:request, env: {})
         }
       end
@@ -382,7 +384,7 @@ describe Issues::CreateService do
 
       context 'when recaptcha was verified' do
         let(:log_user)  { user }
-        let(:spam_logs) { create_list(:spam_log, 2, user: log_user, title: 'Awesome issue') }
+        let(:spam_logs) { create_list(:spam_log, 2, user: log_user, title: title) }
         let(:target_spam_log) { spam_logs.last }
 
         before do
@@ -396,7 +398,7 @@ describe Issues::CreateService do
           expect(issue).not_to be_spam
         end
 
-        it 'issue is valid ' do
+        it 'creates a valid issue' do
           expect(issue).to be_valid
         end
 
@@ -405,14 +407,14 @@ describe Issues::CreateService do
         end
 
         it 'marks related spam_log as recaptcha_verified' do
-          expect { issue }.to change {SpamLog.last.recaptcha_verified}.from(false).to(true)
+          expect { issue }.to change { target_spam_log.reload.recaptcha_verified }.from(false).to(true)
         end
 
         context 'when spam log does not belong to a user' do
           let(:log_user) { create(:user) }
 
           it 'does not mark spam_log as recaptcha_verified' do
-            expect { issue }.not_to change {SpamLog.last.recaptcha_verified}
+            expect { issue }.not_to change { target_spam_log.reload.recaptcha_verified }
           end
         end
       end
@@ -431,8 +433,8 @@ describe Issues::CreateService do
             end
           end
 
-          context 'when issuables_recaptcha_enabled feature flag is true' do
-            it 'marks an issue as spam' do
+          context 'when allow_possible_spam feature flag is false' do
+            it 'marks the issue as spam' do
               expect(issue).to be_spam
             end
 
@@ -442,34 +444,26 @@ describe Issues::CreateService do
 
             it 'creates a new spam_log' do
               expect { issue }
-                  .to have_spam_log(title: issue.title, description: issue.description, user_id: user.id, noteable_type: 'Issue')
-            end
-
-            it 'assigns a spam_log to the issue' do
-              expect(issue.spam_log).to eq(SpamLog.last)
+                  .to have_spam_log(title: title, description: description, user_id: user.id, noteable_type: 'Issue')
             end
           end
 
-          context 'when issuable_recaptcha_enabled feature flag is false' do
+          context 'when allow_possible_spam feature flag is true' do
             before do
               stub_feature_flags(allow_possible_spam: true)
             end
 
-            it 'does not mark an issue as spam' do
+            it 'does not mark the issue as spam' do
               expect(issue).not_to be_spam
             end
 
-            it 'accepts the ​issue as valid' do
+            it '​creates a valid issue' do
               expect(issue).to be_valid
             end
 
             it 'creates a new spam_log' do
               expect { issue }
-                  .to have_spam_log(title: issue.title, description: issue.description, user_id: user.id, noteable_type: 'Issue')
-            end
-
-            it 'assigns a spam_log to an issue' do
-              expect(issue.spam_log).to eq(SpamLog.last)
+                  .to have_spam_log(title: title, description: description, user_id: user.id, noteable_type: 'Issue')
             end
           end
         end
@@ -485,8 +479,8 @@ describe Issues::CreateService do
             expect(issue).not_to be_spam
           end
 
-          it 'an issue is valid ' do
-            expect(issue.valid?).to be_truthy
+          it 'creates a valid issue' do
+            expect(issue).to be_valid
           end
 
           it 'does not assign a spam_log to an issue' do
diff --git a/spec/support/helpers/features/web_ide_spec_helpers.rb b/spec/support/helpers/features/web_ide_spec_helpers.rb
new file mode 100644
index 00000000000..37c8345a4e5
--- /dev/null
+++ b/spec/support/helpers/features/web_ide_spec_helpers.rb
@@ -0,0 +1,148 @@
+# frozen_string_literal: true
+
+# These helpers help you interact within the Web IDE.
+#
+# Usage:
+#   describe "..." do
+#     include WebIdeSpecHelpers
+#     ...
+#
+#     ide_visit(project)
+#     ide_create_new_file('path/to/file.txt', content: 'Lorem ipsum')
+#     ide_commit
+#
+module WebIdeSpecHelpers
+  include ActionView::Helpers::JavaScriptHelper
+
+  def ide_visit(project)
+    visit project_path(project)
+
+    wait_for_requests
+
+    click_link('Web IDE')
+
+    wait_for_requests
+  end
+
+  def ide_tree_body
+    page.find('.ide-tree-body')
+  end
+
+  def ide_tree_actions
+    page.find('.ide-tree-actions')
+  end
+
+  def ide_file_row_open?(row)
+    row.matches_css?('.is-open')
+  end
+
+  # Creates a file in the IDE by expanding directories
+  # then using the dropdown next to the parent directory
+  #
+  # - Throws an error if the parent directory is not found
+  def ide_create_new_file(path, content: '')
+    parent_path = path.split('/')[0...-1].join('/')
+
+    container = ide_traverse_to_file(parent_path)
+
+    if container
+      click_file_action(container, 'New file')
+    else
+      ide_tree_actions.click_button('New file')
+    end
+
+    within '#ide-new-entry' do
+      find('input').fill_in(with: path)
+      click_button('Create file')
+    end
+
+    ide_set_editor_value(content)
+  end
+
+  # Deletes a file by traversing to `path`
+  # then clicking the 'Delete' action.
+  #
+  # - Throws an error if the file is not found
+  def ide_delete_file(path)
+    container = ide_traverse_to_file(path)
+
+    click_file_action(container, 'Delete')
+  end
+
+  # Opens parent directories until the file at `path`
+  # is exposed.
+  #
+  # - Returns a reference to the file row at `path`
+  # - Throws an error if the file is not found
+  def ide_traverse_to_file(path)
+    paths = path.split('/')
+    container = nil
+
+    paths.each_with_index do |path, index|
+      ide_open_file_row(container) if container
+      container = find_file_child(container, path, level: index)
+    end
+
+    container
+  end
+
+  def ide_open_file_row(row)
+    return if ide_file_row_open?(row)
+
+    row.click
+  end
+
+  def ide_set_editor_value(value)
+    editor = find('.monaco-editor')
+    uri = editor['data-uri']
+
+    execute_script("monaco.editor.getModel('#{uri}').setValue('#{escape_javascript(value)}')")
+  end
+
+  def ide_editor_value
+    editor = find('.monaco-editor')
+    uri = editor['data-uri']
+
+    evaluate_script("monaco.editor.getModel('#{uri}').getValue()")
+  end
+
+  def ide_commit
+    ide_switch_mode('commit')
+
+    commit_to_current_branch
+  end
+
+  def ide_switch_mode(mode)
+    find(".js-ide-#{mode}-mode").click
+  end
+
+  private
+
+  def file_row_container(row)
+    row ? row.find(:xpath, '..') : ide_tree_body
+  end
+
+  def find_file_child(row, name, level: nil)
+    container = file_row_container(row)
+    container.find(".file-row[data-level=\"#{level}\"]", text: name)
+  end
+
+  def click_file_action(row, text)
+    row.hover
+    dropdown = row.find('.ide-new-btn')
+    dropdown.find('button').click
+    dropdown.find('button', text: text).click
+  end
+
+  def commit_to_current_branch(option: 'Commit to master branch', message: '')
+    within '.multi-file-commit-form' do
+      fill_in('commit-message', with: message) if message
+
+      choose(option)
+
+      click_button('Commit')
+
+      wait_for_requests
+    end
+  end
+end