Add disable option for the auto-close referenced issues feature

app/controllers/projects_controller.rb

@@ -386,6 +386,7 @@ class ProjectsController < Projects::ApplicationController
       :template_project_id,
       :merge_method,
       :initialize_with_readme,
+      :autoclose_referenced_issues,
 
       project_feature_attributes: %i[
         builds_access_level

app/graphql/types/project_type.rb

@@ -102,6 +102,8 @@ module Types
           description: 'Indicates if a link to create or view a merge request should display after a push to Git repositories of the project from the command line'
     field :remove_source_branch_after_merge, GraphQL::BOOLEAN_TYPE, null: true,
           description: 'Indicates if `Delete source branch` option should be enabled by default for all new merge requests of the project'
+    field :autoclose_referenced_issues, GraphQL::BOOLEAN_TYPE, null: true,
+          description: 'Indicates if issues referenced by merge requests and commits within the default branch are closed automatically'
 
     field :namespace, Types::NamespaceType, null: true,
           description: 'Namespace of the project'

app/models/project.rb

@@ -75,6 +75,7 @@ class Project < ApplicationRecord
   default_value_for :snippets_enabled, gitlab_config_features.snippets
   default_value_for :only_allow_merge_if_all_discussions_are_resolved, false
   default_value_for :remove_source_branch_after_merge, true
+  default_value_for :autoclose_referenced_issues, true
   default_value_for(:ci_config_path) { Gitlab::CurrentSettings.default_ci_config_path }
 
   add_authentication_token_field :runners_token, encrypted: -> { Feature.enabled?(:projects_tokens_optional_encryption, default_enabled: true) ? :optional : :required }
@@ -679,6 +680,12 @@ class Project < ApplicationRecord
     end
   end
 
+  def autoclose_referenced_issues
+    return true if super.nil?
+
+    super
+  end
+
   def preload_protected_branches
     preloader = ActiveRecord::Associations::Preloader.new
     preloader.preload(self, protected_branches: [:push_access_levels, :merge_access_levels])

app/views/projects/default_branch/_show.html.haml

@@ -9,13 +9,23 @@
       = _('Select the branch you want to set as the default for this project. All merge requests and commits will automatically be made against this branch unless you specify a different one.')
 
   .settings-content
+    = form_for [@project.namespace.becomes(Namespace), @project], remote: true, html: { multipart: true, anchor: 'default-branch-settings' }, authenticity_token: true do |f|
+      %fieldset
         - if @project.empty_repo?
           .text-secondary
             = _('A default branch cannot be chosen for an empty project.')
         - else
-      = form_for [@project.namespace.becomes(Namespace), @project], remote: true, html: { multipart: true, anchor: 'default-branch-settings' }, authenticity_token: true do |f|
-        %fieldset
           .form-group
             = f.label :default_branch, "Default Branch", class: 'label-bold'
             = f.select(:default_branch, @project.repository.branch_names, {}, {class: 'select2 select-wide'})
+
+        .form-group
+          .form-check
+            = f.check_box :autoclose_referenced_issues, class: 'form-check-input'
+            = f.label :autoclose_referenced_issues, class: 'form-check-label' do
+              %strong= _("Auto-close referenced issues on default branch")
+            .form-text.text-muted
+              = _("Issues referenced by merge requests and commits within the default branch will be closed automatically")
+              = link_to icon('question-circle'), help_page_path('user/project/issues/managing_issues.html', anchor: 'disabling-automatic-issue-closing'), target: '_blank'
+
       = f.submit 'Save changes', class: "btn btn-success"

changelogs/unreleased/feat-disable-issue-autoclose-feature.yml

+---
+title: Add capability to disable issue auto-close feature per project
+merge_request: 21704
+author: Fabio Huser
+type: added

db/migrate/20200103195205_add_autoclose_referenced_issues_to_projects.rb

+# frozen_string_literal: true
+
+class AddAutocloseReferencedIssuesToProjects < ActiveRecord::Migration[5.2]
+  DOWNTIME = false
+
+  def change
+    add_column :projects, :autoclose_referenced_issues, :boolean
+  end
+end

db/schema.rb

@@ -3348,6 +3348,7 @@ ActiveRecord::Schema.define(version: 2020_01_06_085831) do
     t.boolean "remove_source_branch_after_merge"
     t.date "marked_for_deletion_at"
     t.integer "marked_for_deletion_by_user_id"
+    t.boolean "autoclose_referenced_issues"
     t.index "lower((name)::text)", name: "index_projects_on_lower_name"
     t.index ["created_at", "id"], name: "index_projects_on_created_at_and_id"
     t.index ["creator_id"], name: "index_projects_on_creator_id"

doc/api/graphql/reference/gitlab_schema.graphql

@@ -4609,6 +4609,11 @@ type Project {
   """
   archived: Boolean
 
+  """
+  Indicates if issues referenced by merge requests and commits within the default branch are closed automatically
+  """
+  autocloseReferencedIssues: Boolean
+
   """
   URL to avatar image file of the project
   """

doc/api/graphql/reference/gitlab_schema.json

@@ -322,6 +322,20 @@
               "isDeprecated": false,
               "deprecationReason": null
             },
+            {
+              "name": "autocloseReferencedIssues",
+              "description": "Indicates if issues referenced by merge requests and commits within the default branch are closed automatically",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "SCALAR",
+                "name": "Boolean",
+                "ofType": null
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
             {
               "name": "avatarUrl",
               "description": "URL to avatar image file of the project",

doc/api/graphql/reference/index.md

@@ -704,6 +704,7 @@ The API can be explored interactively using the [GraphiQL IDE](../index.md#graph
 | `onlyAllowMergeIfAllDiscussionsAreResolved` | Boolean | Indicates if merge requests of the project can only be merged when all the discussions are resolved |
 | `printingMergeRequestLinkEnabled` | Boolean | Indicates if a link to create or view a merge request should display after a push to Git repositories of the project from the command line |
 | `removeSourceBranchAfterMerge` | Boolean | Indicates if `Delete source branch` option should be enabled by default for all new merge requests of the project |
+| `autocloseReferencedIssues` | Boolean | Indicates if issues referenced by merge requests and commits within the default branch are closed automatically |
 | `namespace` | Namespace | Namespace of the project |
 | `group` | Group | Group of the project |
 | `statistics` | ProjectStatistics | Statistics of the project |

doc/api/projects.md

@@ -156,6 +156,7 @@ When the user is authenticated and `simple` is not set this returns something li
     "remove_source_branch_after_merge": false,
     "request_access_enabled": false,
     "merge_method": "merge",
+    "autoclose_referenced_issues": true,
     "statistics": {
       "commit_count": 37,
       "storage_size": 1038090,
@@ -254,6 +255,7 @@ When the user is authenticated and `simple` is not set this returns something li
     "packages_enabled": true,
     "service_desk_enabled": false,
     "service_desk_address": null,
+    "autoclose_referenced_issues": true,
     "statistics": {
       "commit_count": 12,
       "storage_size": 2066080,
@@ -385,6 +387,7 @@ This endpoint supports [keyset pagination](README.md#keyset-based-pagination) fo
     "remove_source_branch_after_merge": false,
     "request_access_enabled": false,
     "merge_method": "merge",
+    "autoclose_referenced_issues": true,
     "statistics": {
       "commit_count": 37,
       "storage_size": 1038090,
@@ -483,6 +486,7 @@ This endpoint supports [keyset pagination](README.md#keyset-based-pagination) fo
     "packages_enabled": true,
     "service_desk_enabled": false,
     "service_desk_address": null,
+    "autoclose_referenced_issues": true,
     "statistics": {
       "commit_count": 12,
       "storage_size": 2066080,
@@ -593,6 +597,7 @@ Example response:
     "remove_source_branch_after_merge": false,
     "request_access_enabled": false,
     "merge_method": "merge",
+    "autoclose_referenced_issues": true,
     "statistics": {
       "commit_count": 37,
       "storage_size": 1038090,
@@ -688,6 +693,7 @@ Example response:
     "packages_enabled": true,
     "service_desk_enabled": false,
     "service_desk_address": null,
+    "autoclose_referenced_issues": true,
     "statistics": {
       "commit_count": 12,
       "storage_size": 2066080,
@@ -829,6 +835,7 @@ GET /projects/:id
   "packages_enabled": true,
   "service_desk_enabled": false,
   "service_desk_address": null,
+  "autoclose_referenced_issues": true,
   "statistics": {
     "commit_count": 37,
     "storage_size": 1038090,
@@ -986,6 +993,7 @@ POST /projects
 | `only_allow_merge_if_pipeline_succeeds` | boolean | no | Set whether merge requests can only be merged with successful jobs |
 | `only_allow_merge_if_all_discussions_are_resolved` | boolean | no | Set whether merge requests can only be merged when all the discussions are resolved |
 | `merge_method` | string | no | Set the [merge method](#project-merge-method) used |
+| `autoclose_referenced_issues` | boolean | no | Set whether auto-closing referenced issues on default branch |
 | `remove_source_branch_after_merge` | boolean | no | Enable `Delete source branch` option by default for all new merge requests |
 | `lfs_enabled` | boolean | no | Enable LFS |
 | `request_access_enabled` | boolean | no | Allow users to request member access |
@@ -1050,6 +1058,7 @@ POST /projects/user/:user_id
 | `only_allow_merge_if_pipeline_succeeds` | boolean | no | Set whether merge requests can only be merged with successful jobs |
 | `only_allow_merge_if_all_discussions_are_resolved` | boolean | no | Set whether merge requests can only be merged when all the discussions are resolved |
 | `merge_method` | string | no | Set the [merge method](#project-merge-method) used |
+| `autoclose_referenced_issues` | boolean | no | Set whether auto-closing referenced issues on default branch |
 | `remove_source_branch_after_merge` | boolean | no | Enable `Delete source branch` option by default for all new merge requests |
 | `lfs_enabled` | boolean | no | Enable LFS |
 | `request_access_enabled` | boolean | no | Allow users to request member access |
@@ -1113,6 +1122,7 @@ PUT /projects/:id
 | `only_allow_merge_if_pipeline_succeeds` | boolean | no | Set whether merge requests can only be merged with successful jobs |
 | `only_allow_merge_if_all_discussions_are_resolved` | boolean | no | Set whether merge requests can only be merged when all the discussions are resolved |
 | `merge_method` | string | no | Set the [merge method](#project-merge-method) used |
+| `autoclose_referenced_issues` | boolean | no | Set whether auto-closing referenced issues on default branch |
 | `remove_source_branch_after_merge` | boolean | no | Enable `Delete source branch` option by default for all new merge requests |
 | `lfs_enabled` | boolean | no | Enable LFS |
 | `request_access_enabled` | boolean | no | Allow users to request member access |
@@ -1244,6 +1254,7 @@ Example responses:
     "remove_source_branch_after_merge": false,
     "request_access_enabled": false,
     "merge_method": "merge",
+    "autoclose_referenced_issues": true,
     "_links": {
       "self": "http://example.com/api/v4/projects",
       "issues": "http://example.com/api/v4/projects/1/issues",
@@ -1332,6 +1343,7 @@ Example response:
   "remove_source_branch_after_merge": false,
   "request_access_enabled": false,
   "merge_method": "merge",
+  "autoclose_referenced_issues": true,
   "_links": {
     "self": "http://example.com/api/v4/projects",
     "issues": "http://example.com/api/v4/projects/1/issues",
@@ -1419,6 +1431,7 @@ Example response:
   "remove_source_branch_after_merge": false,
   "request_access_enabled": false,
   "merge_method": "merge",
+  "autoclose_referenced_issues": true,
   "_links": {
     "self": "http://example.com/api/v4/projects",
     "issues": "http://example.com/api/v4/projects/1/issues",
@@ -1593,6 +1606,7 @@ Example response:
   "remove_source_branch_after_merge": false,
   "request_access_enabled": false,
   "merge_method": "merge",
+  "autoclose_referenced_issues": true,
   "_links": {
     "self": "http://example.com/api/v4/projects",
     "issues": "http://example.com/api/v4/projects/1/issues",
@@ -1699,6 +1713,7 @@ Example response:
   "remove_source_branch_after_merge": false,
   "request_access_enabled": false,
   "merge_method": "merge",
+  "autoclose_referenced_issues": true,
   "_links": {
     "self": "http://example.com/api/v4/projects",
     "issues": "http://example.com/api/v4/projects/1/issues",

doc/user/project/issues/managing_issues.md

@@ -211,6 +211,19 @@ as well as `#22` and `#23` in group/otherproject. `#17` won't be closed as it do
 not match the pattern. It works with multi-line commit messages as well as one-liners
 when used from the command line with `git commit -m`.
 
+#### Disabling automatic issue closing
+
+The automatic issue closing feature can be disabled on a per-project basis
+within the [project's repository settings](../settings/index.md). Referenced
+issues will still be displayed as such but won't be closed automatically.
+
+![disable issue auto close - settings](img/disable_issue_auto_close.png)
+
+This only applies to issues affected by new merge requests or commits. Already
+closed issues remain as-is. Disabling automatic issue closing only affects merge
+requests *within* the project and won't prevent other projects from closing it
+via cross-project issues.
+
 #### Customizing the issue closing pattern **(CORE ONLY)**
 
 In order to change the default issue closing pattern, GitLab administrators must edit the

lib/api/entities.rb

@@ -331,6 +331,7 @@ module API
       expose :auto_devops_deploy_strategy do |project, options|
         project.auto_devops.nil? ? 'continuous' : project.auto_devops.deploy_strategy
       end
+      expose :autoclose_referenced_issues
 
       # rubocop: disable CodeReuse/ActiveRecord
       def self.preload_relation(projects_relation, options = {})

lib/api/helpers/projects_helpers.rb

@@ -47,6 +47,7 @@ module API
         optional :ci_default_git_depth, type: Integer, desc: 'Default number of revisions for shallow cloning'
         optional :auto_devops_enabled, type: Boolean, desc: 'Flag indication if Auto DevOps is enabled'
         optional :auto_devops_deploy_strategy, type: String, values: %w(continuous manual timed_incremental), desc: 'Auto Deploy strategy'
+        optional :autoclose_referenced_issues, type: Boolean, desc: 'Flag indication if referenced issues auto-closing is enabled'
       end
 
       params :optional_project_params_ee do
@@ -85,6 +86,7 @@ module API
           :container_registry_enabled,
           :default_branch,
           :description,
+          :autoclose_referenced_issues,
           :issues_access_level,
           :lfs_enabled,
           :merge_requests_access_level,

lib/gitlab/closing_issue_extractor.rb

@@ -11,11 +11,13 @@ module Gitlab
     end
 
     def initialize(project, current_user = nil)
+      @project = project
       @extractor = Gitlab::ReferenceExtractor.new(project, current_user)
     end
 
     def closed_by_message(message)
       return [] if message.nil?
+      return [] unless @project.autoclose_referenced_issues
 
       closing_statements = []
       message.scan(ISSUE_CLOSING_REGEX) do

locale/gitlab.pot

@@ -2381,6 +2381,9 @@ msgstr ""
 msgid "Auto-cancel redundant, pending pipelines"
 msgstr ""
 
+msgid "Auto-close referenced issues on default branch"
+msgstr ""
+
 msgid "AutoDevOps|Auto DevOps"
 msgstr ""
 
@@ -10077,6 +10080,9 @@ msgstr ""
 msgid "Issues closed"
 msgstr ""
 
+msgid "Issues referenced by merge requests and commits within the default branch will be closed automatically"
+msgstr ""
+
 msgid "Issues with comments, merge requests with diffs and comments, labels, milestones, snippets, and other project entities"
 msgstr ""
 

spec/graphql/types/project_type_spec.rb

@@ -23,7 +23,7 @@ describe GitlabSchema.types['Project'] do
       only_allow_merge_if_all_discussions_are_resolved printing_merge_request_link_enabled
       namespace group statistics repository merge_requests merge_request issues
       issue pipelines removeSourceBranchAfterMerge sentryDetailedError snippets
-      grafanaIntegration
+      grafanaIntegration autocloseReferencedIssues
     ]
 
     is_expected.to include_graphql_fields(*expected_fields)

spec/lib/gitlab/closing_issue_extractor_spec.rb

@@ -438,6 +438,17 @@ describe Gitlab::ClosingIssueExtractor do
             .to match_array([issue])
       end
     end
+
+    context "with autoclose referenced issues disabled" do
+      before do
+        project.update!(autoclose_referenced_issues: false)
+      end
+
+      it do
+        message = "Awesome commit (Closes #{reference})"
+        expect(subject.closed_by_message(message)).to eq([])
+      end
+    end
   end
 
   def urls

spec/lib/gitlab/import_export/all_models.yml

@@ -463,6 +463,7 @@ project:
 - import_failures
 - container_expiration_policy
 - resource_groups
+- autoclose_referenced_issues
 award_emoji:
 - awardable
 - user

spec/lib/gitlab/import_export/safe_model_attributes.yml

@@ -534,6 +534,7 @@ Project:
 - pages_https_only
 - merge_requests_disable_committers_approval
 - require_password_to_approve
+- autoclose_referenced_issues
 ProjectTracingSetting:
 - external_url
 Author:

spec/models/commit_spec.rb

@@ -390,6 +390,17 @@ eos
       expect(commit.closes_issues).to include(issue)
       expect(commit.closes_issues).to include(other_issue)
     end
+
+    it 'ignores referenced issues when auto-close is disabled' do
+      project.update!(autoclose_referenced_issues: false)
+
+      allow(commit).to receive_messages(
+        safe_message: "Fixes ##{issue.iid}",
+        committer_email: committer.email
+      )
+
+      expect(commit.closes_issues).to be_empty
+    end
   end
 
   it_behaves_like 'a mentionable' do

spec/models/merge_request_spec.rb

@@ -963,6 +963,15 @@ describe MergeRequest do
 
       expect(subject.closes_issues).to be_empty
     end
+
+    it 'ignores referenced issues when auto-close is disabled' do
+      subject.project.update!(autoclose_referenced_issues: false)
+
+      allow(subject.project).to receive(:default_branch)
+        .and_return(subject.target_branch)
+
+      expect(subject.closes_issues).to be_empty
+    end
   end
 
   describe '#issues_mentioned_but_not_closing' do

spec/models/project_spec.rb

@@ -474,6 +474,32 @@ describe Project do
     end
   end
 
+  describe '#autoclose_referenced_issues' do
+    context 'when DB entry is nil' do
+      let(:project) { create(:project, autoclose_referenced_issues: nil) }
+
+      it 'returns true' do
+        expect(project.autoclose_referenced_issues).to be_truthy
+      end
+    end
+
+    context 'when DB entry is true' do
+      let(:project) { create(:project, autoclose_referenced_issues: true) }
+
+      it 'returns true' do
+        expect(project.autoclose_referenced_issues).to be_truthy
+      end
+    end
+
+    context 'when DB entry is false' do
+      let(:project) { create(:project, autoclose_referenced_issues: false) }
+
+      it 'returns false' do
+        expect(project.autoclose_referenced_issues).to be_falsey
+      end
+    end
+  end
+
   describe 'project token' do
     it 'sets an random token if none provided' do
       project = FactoryBot.create(:project, runners_token: '')

spec/requests/api/projects_spec.rb

@@ -635,6 +635,7 @@ describe API::Projects do
         wiki_enabled: false,
         resolve_outdated_diff_discussions: false,
         remove_source_branch_after_merge: true,
+        autoclose_referenced_issues: true,
         only_allow_merge_if_pipeline_succeeds: false,
         request_access_enabled: true,
         only_allow_merge_if_all_discussions_are_resolved: false,
@@ -807,6 +808,22 @@ describe API::Projects do
       expect(json_response['only_allow_merge_if_all_discussions_are_resolved']).to be_truthy
     end
 
+    it 'sets a project as enabling auto close referenced issues' do
+      project = attributes_for(:project, autoclose_referenced_issues: true)
+
+      post api('/projects', user), params: project
+
+      expect(json_response['autoclose_referenced_issues']).to be_truthy
+    end
+
+    it 'sets a project as disabling auto close referenced issues' do
+      project = attributes_for(:project, autoclose_referenced_issues: false)
+
+      post api('/projects', user), params: project
+
+      expect(json_response['autoclose_referenced_issues']).to be_falsey
+    end
+
     it 'sets the merge method of a project to rebase merge' do
       project = attributes_for(:project, merge_method: 'rebase_merge')