summaryrefslogtreecommitdiff
path: root/lib/api/merge_requests.rb
blob: ce85772e4ed441590db3fceace2b2c1a74635bf5 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
# frozen_string_literal: true

module API
  class MergeRequests < Grape::API
    include PaginationParams

    before { authenticate_non_get! }

    helpers ::Gitlab::IssuableMetadata

    # EE::API::MergeRequests would override the following helpers
    helpers do
      params :optional_params_ee do
      end

      params :optional_merge_requests_search_params do
      end
    end

    def self.update_params_at_least_one_of
      %i[
        assignee_id
        assignee_ids
        description
        labels
        milestone_id
        remove_source_branch
        state_event
        target_branch
        title
        discussion_locked
        squash
      ]
    end

    helpers do
      # rubocop: disable CodeReuse/ActiveRecord
      def find_merge_requests(args = {})
        args = declared_params.merge(args)
        args[:milestone_title] = args.delete(:milestone)
        args[:label_name] = args.delete(:labels)
        args[:scope] = args[:scope].underscore if args[:scope]

        merge_requests = MergeRequestsFinder.new(current_user, args).execute
                           .reorder(order_options_with_tie_breaker)
        merge_requests = paginate(merge_requests)
                           .preload(:source_project, :target_project)

        return merge_requests if args[:view] == 'simple'

        merge_requests
          .with_api_entity_associations
      end
      # rubocop: enable CodeReuse/ActiveRecord

      def merge_request_pipelines_with_access
        authorize! :read_pipeline, user_project

        mr = find_merge_request_with_access(params[:merge_request_iid])
        mr.all_pipelines
      end

      def check_sha_param!(params, merge_request)
        if params[:sha] && merge_request.diff_head_sha != params[:sha]
          render_api_error!("SHA does not match HEAD of source branch: #{merge_request.diff_head_sha}", 409)
        end
      end

      def serializer_options_for(merge_requests)
        options = { with: Entities::MergeRequestBasic, current_user: current_user }

        if params[:view] == 'simple'
          options[:with] = Entities::MergeRequestSimple
        else
          options[:issuable_metadata] = issuable_meta_data(merge_requests, 'MergeRequest')
        end

        options
      end

      def authorize_push_to_merge_request!(merge_request)
        forbidden!('Source branch does not exist') unless
          merge_request.source_branch_exists?

        user_access = Gitlab::UserAccess.new(
          current_user,
          project: merge_request.source_project
        )

        forbidden!('Cannot push to source branch') unless
          user_access.can_push_to_branch?(merge_request.source_branch)
      end

      params :merge_requests_params do
        optional :state, type: String, values: %w[opened closed locked merged all], default: 'all',
                         desc: 'Return opened, closed, locked, merged, or all merge requests'
        optional :order_by, type: String, values: %w[created_at updated_at], default: 'created_at',
                            desc: 'Return merge requests ordered by `created_at` or `updated_at` fields.'
        optional :sort, type: String, values: %w[asc desc], default: 'desc',
                        desc: 'Return merge requests sorted in `asc` or `desc` order.'
        optional :milestone, type: String, desc: 'Return merge requests for a specific milestone'
        optional :labels, type: Array[String], coerce_with: Validations::Types::LabelsList.coerce, desc: 'Comma-separated list of label names'
        optional :created_after, type: DateTime, desc: 'Return merge requests created after the specified time'
        optional :created_before, type: DateTime, desc: 'Return merge requests created before the specified time'
        optional :updated_after, type: DateTime, desc: 'Return merge requests updated after the specified time'
        optional :updated_before, type: DateTime, desc: 'Return merge requests updated before the specified time'
        optional :view, type: String, values: %w[simple], desc: 'If simple, returns the `iid`, URL, title, description, and basic state of merge request'
        optional :author_id, type: Integer, desc: 'Return merge requests which are authored by the user with the given ID'
        optional :assignee_id, types: [Integer, String], integer_none_any: true,
                               desc: 'Return merge requests which are assigned to the user with the given ID'
        optional :scope, type: String, values: %w[created-by-me assigned-to-me created_by_me assigned_to_me all],
                         desc: 'Return merge requests for the given scope: `created_by_me`, `assigned_to_me` or `all`'
        optional :my_reaction_emoji, type: String, desc: 'Return issues reacted by the authenticated user by the given emoji'
        optional :source_branch, type: String, desc: 'Return merge requests with the given source branch'
        optional :source_project_id, type: Integer, desc: 'Return merge requests with the given source project id'
        optional :target_branch, type: String, desc: 'Return merge requests with the given target branch'
        optional :search, type: String, desc: 'Search merge requests for text present in the title, description, or any combination of these'
        optional :in, type: String, desc: '`title`, `description`, or a string joining them with comma'
        optional :wip, type: String, values: %w[yes no], desc: 'Search merge requests for WIP in the title'

        use :optional_merge_requests_search_params
        use :pagination
      end
    end

    resource :merge_requests do
      desc 'List merge requests' do
        success Entities::MergeRequestBasic
      end
      params do
        use :merge_requests_params
        optional :scope, type: String, values: %w[created-by-me assigned-to-me created_by_me assigned_to_me all], default: 'created_by_me',
                         desc: 'Return merge requests for the given scope: `created_by_me`, `assigned_to_me` or `all`'
      end
      get do
        authenticate! unless params[:scope] == 'all'
        merge_requests = find_merge_requests

        present merge_requests, serializer_options_for(merge_requests)
      end
    end

    params do
      requires :id, type: String, desc: 'The ID of a group'
    end
    resource :groups, requirements: API::NAMESPACE_OR_PROJECT_REQUIREMENTS do
      desc 'Get a list of group merge requests' do
        success Entities::MergeRequestBasic
      end
      params do
        use :merge_requests_params
      end
      get ":id/merge_requests" do
        group = find_group!(params[:id])

        merge_requests = find_merge_requests(group_id: group.id, include_subgroups: true)

        present merge_requests, serializer_options_for(merge_requests)
      end
    end

    params do
      requires :id, type: String, desc: 'The ID of a project'
    end
    resource :projects, requirements: API::NAMESPACE_OR_PROJECT_REQUIREMENTS do
      include TimeTrackingEndpoints

      helpers do
        def handle_merge_request_errors!(errors)
          if errors[:project_access].any?
            error!(errors[:project_access], 422)
          elsif errors[:branch_conflict].any?
            error!(errors[:branch_conflict], 422)
          elsif errors[:validate_fork].any?
            error!(errors[:validate_fork], 422)
          elsif errors[:validate_branches].any?
            conflict!(errors[:validate_branches])
          elsif errors[:base].any?
            error!(errors[:base], 422)
          end

          render_api_error!(errors, 400)
        end

        params :optional_params do
          optional :description, type: String, desc: 'The description of the merge request'
          optional :assignee_id, type: Integer, desc: 'The ID of a user to assign the merge request'
          optional :assignee_ids, type: Array[Integer], desc: 'The array of user IDs to assign issue'
          optional :milestone_id, type: Integer, desc: 'The ID of a milestone to assign the merge request'
          optional :labels, type: Array[String], coerce_with: Validations::Types::LabelsList.coerce, desc: 'Comma-separated list of label names'
          optional :remove_source_branch, type: Boolean, desc: 'Remove source branch when merging'
          optional :allow_collaboration, type: Boolean, desc: 'Allow commits from members who can merge to the target branch'
          optional :allow_maintainer_to_push, type: Boolean, as: :allow_collaboration, desc: '[deprecated] See allow_collaboration'
          optional :squash, type: Grape::API::Boolean, desc: 'When true, the commits will be squashed into a single commit on merge'

          use :optional_params_ee
        end
      end

      desc 'List merge requests' do
        success Entities::MergeRequestBasic
      end
      params do
        use :merge_requests_params
        optional :iids, type: Array[Integer], desc: 'The IID array of merge requests'
      end
      get ":id/merge_requests" do
        authorize! :read_merge_request, user_project

        merge_requests = find_merge_requests(project_id: user_project.id)

        options = serializer_options_for(merge_requests)
        options[:project] = user_project

        present merge_requests, options
      end

      desc 'Create a merge request' do
        success Entities::MergeRequest
      end
      params do
        requires :title, type: String, desc: 'The title of the merge request'
        requires :source_branch, type: String, desc: 'The source branch'
        requires :target_branch, type: String, desc: 'The target branch'
        optional :target_project_id, type: Integer,
                                     desc: 'The target project of the merge request defaults to the :id of the project'
        use :optional_params
      end
      post ":id/merge_requests" do
        Gitlab::QueryLimiting.whitelist('https://gitlab.com/gitlab-org/gitlab-ce/issues/42316')

        authorize! :create_merge_request_from, user_project

        mr_params = declared_params(include_missing: false)
        mr_params[:force_remove_source_branch] = mr_params.delete(:remove_source_branch)
        mr_params = convert_parameters_from_legacy_format(mr_params)

        merge_request = ::MergeRequests::CreateService.new(user_project, current_user, mr_params).execute

        if merge_request.valid?
          present merge_request, with: Entities::MergeRequest, current_user: current_user, project: user_project
        else
          handle_merge_request_errors! merge_request.errors
        end
      end

      desc 'Delete a merge request'
      params do
        requires :merge_request_iid, type: Integer, desc: 'The IID of a merge request'
      end
      delete ":id/merge_requests/:merge_request_iid" do
        merge_request = find_project_merge_request(params[:merge_request_iid])

        authorize!(:destroy_merge_request, merge_request)

        destroy_conditionally!(merge_request) do |merge_request|
          Issuable::DestroyService.new(user_project, current_user).execute(merge_request)
        end
      end

      params do
        requires :merge_request_iid, type: Integer, desc: 'The IID of a merge request'
        optional :render_html, type: Boolean, desc: 'Returns the description and title rendered HTML'
        optional :include_diverged_commits_count, type: Boolean, desc: 'Returns the commits count behind the target branch'
        optional :include_rebase_in_progress, type: Boolean, desc: 'Returns whether a rebase operation is ongoing '
      end
      desc 'Get a single merge request' do
        success Entities::MergeRequest
      end
      get ':id/merge_requests/:merge_request_iid' do
        merge_request = find_merge_request_with_access(params[:merge_request_iid])

        present merge_request,
          with: Entities::MergeRequest,
          current_user: current_user,
          project: user_project,
          render_html: params[:render_html],
          include_diverged_commits_count: params[:include_diverged_commits_count],
          include_rebase_in_progress: params[:include_rebase_in_progress]
      end

      desc 'Get the participants of a merge request' do
        success Entities::UserBasic
      end
      get ':id/merge_requests/:merge_request_iid/participants' do
        merge_request = find_merge_request_with_access(params[:merge_request_iid])
        participants = ::Kaminari.paginate_array(merge_request.participants)

        present paginate(participants), with: Entities::UserBasic
      end

      desc 'Get the commits of a merge request' do
        success Entities::Commit
      end
      get ':id/merge_requests/:merge_request_iid/commits' do
        merge_request = find_merge_request_with_access(params[:merge_request_iid])
        commits = ::Kaminari.paginate_array(merge_request.commits)

        present paginate(commits), with: Entities::Commit
      end

      desc 'Show the merge request changes' do
        success Entities::MergeRequestChanges
      end
      get ':id/merge_requests/:merge_request_iid/changes' do
        merge_request = find_merge_request_with_access(params[:merge_request_iid])

        present merge_request, with: Entities::MergeRequestChanges, current_user: current_user, project: user_project
      end

      desc 'Get the merge request pipelines' do
        success Entities::PipelineBasic
      end
      get ':id/merge_requests/:merge_request_iid/pipelines' do
        pipelines = merge_request_pipelines_with_access

        present paginate(pipelines), with: Entities::PipelineBasic
      end

      desc 'Update a merge request' do
        success Entities::MergeRequest
      end
      params do
        optional :title, type: String, allow_blank: false, desc: 'The title of the merge request'
        optional :target_branch, type: String, allow_blank: false, desc: 'The target branch'
        optional :state_event, type: String, values: %w[close reopen],
                               desc: 'Status of the merge request'
        optional :discussion_locked, type: Boolean, desc: 'Whether the MR discussion is locked'

        use :optional_params
        at_least_one_of(*::API::MergeRequests.update_params_at_least_one_of)
      end
      put ':id/merge_requests/:merge_request_iid' do
        Gitlab::QueryLimiting.whitelist('https://gitlab.com/gitlab-org/gitlab-ce/issues/42318')

        merge_request = find_merge_request_with_access(params.delete(:merge_request_iid), :update_merge_request)

        mr_params = declared_params(include_missing: false)
        mr_params[:force_remove_source_branch] = mr_params.delete(:remove_source_branch) if mr_params.has_key?(:remove_source_branch)
        mr_params = convert_parameters_from_legacy_format(mr_params)

        merge_request = ::MergeRequests::UpdateService.new(user_project, current_user, mr_params).execute(merge_request)

        if merge_request.valid?
          present merge_request, with: Entities::MergeRequest, current_user: current_user, project: user_project
        else
          handle_merge_request_errors! merge_request.errors
        end
      end

      desc 'Merge a merge request' do
        success Entities::MergeRequest
      end
      params do
        optional :merge_commit_message, type: String, desc: 'Custom merge commit message'
        optional :squash_commit_message, type: String, desc: 'Custom squash commit message'
        optional :should_remove_source_branch, type: Boolean,
                                               desc: 'When true, the source branch will be deleted if possible'
        optional :merge_when_pipeline_succeeds, type: Boolean,
                                                desc: 'When true, this merge request will be merged when the pipeline succeeds'
        optional :sha, type: String, desc: 'When present, must have the HEAD SHA of the source branch'
        optional :squash, type: Grape::API::Boolean, desc: 'When true, the commits will be squashed into a single commit on merge'
      end
      put ':id/merge_requests/:merge_request_iid/merge' do
        Gitlab::QueryLimiting.whitelist('https://gitlab.com/gitlab-org/gitlab-ce/issues/42317')

        merge_request = find_project_merge_request(params[:merge_request_iid])
        merge_when_pipeline_succeeds = to_boolean(params[:merge_when_pipeline_succeeds])

        # Merge request can not be merged
        # because user dont have permissions to push into target branch
        unauthorized! unless merge_request.can_be_merged_by?(current_user)

        not_allowed! unless merge_request.mergeable_state?(skip_ci_check: merge_when_pipeline_succeeds)

        render_api_error!('Branch cannot be merged', 406) unless merge_request.mergeable?(skip_ci_check: merge_when_pipeline_succeeds)

        check_sha_param!(params, merge_request)

        merge_request.update(squash: params[:squash]) if params[:squash]

        merge_params = HashWithIndifferentAccess.new(
          commit_message: params[:merge_commit_message],
          squash_commit_message: params[:squash_commit_message],
          should_remove_source_branch: params[:should_remove_source_branch]
        )

        if merge_when_pipeline_succeeds && merge_request.head_pipeline && merge_request.head_pipeline.active?
          ::MergeRequests::MergeWhenPipelineSucceedsService
            .new(merge_request.target_project, current_user, merge_params)
            .execute(merge_request)
        else
          ::MergeRequests::MergeService
            .new(merge_request.target_project, current_user, merge_params)
            .execute(merge_request)
        end

        present merge_request, with: Entities::MergeRequest, current_user: current_user, project: user_project
      end

      desc 'Merge a merge request to its default temporary merge ref path'
      params do
        optional :merge_commit_message, type: String, desc: 'Custom merge commit message'
      end
      put ':id/merge_requests/:merge_request_iid/merge_to_ref' do
        merge_request = find_project_merge_request(params[:merge_request_iid])

        authorize! :admin_merge_request, user_project

        merge_params = {
          commit_message: params[:merge_commit_message]
        }

        result = ::MergeRequests::MergeToRefService
          .new(merge_request.target_project, current_user, merge_params)
          .execute(merge_request)

        if result[:status] == :success
          present result.slice(:commit_id), 200
        else
          http_status = result[:http_status] || 400
          render_api_error!(result[:message], http_status)
        end
      end

      desc 'Cancel merge if "Merge When Pipeline Succeeds" is enabled' do
        success Entities::MergeRequest
      end
      post ':id/merge_requests/:merge_request_iid/cancel_merge_when_pipeline_succeeds' do
        merge_request = find_project_merge_request(params[:merge_request_iid])

        unauthorized! unless merge_request.can_cancel_merge_when_pipeline_succeeds?(current_user)

        ::MergeRequests::MergeWhenPipelineSucceedsService
          .new(merge_request.target_project, current_user)
          .cancel(merge_request)
      end

      desc 'Rebase the merge request against its target branch' do
        detail 'This feature was added in GitLab 11.6'
      end
      put ':id/merge_requests/:merge_request_iid/rebase' do
        merge_request = find_project_merge_request(params[:merge_request_iid])

        authorize_push_to_merge_request!(merge_request)

        RebaseWorker.perform_async(merge_request.id, current_user.id)

        status :accepted
      end

      desc 'List issues that will be closed on merge' do
        success Entities::MRNote
      end
      params do
        use :pagination
      end
      get ':id/merge_requests/:merge_request_iid/closes_issues' do
        merge_request = find_merge_request_with_access(params[:merge_request_iid])
        issues = ::Kaminari.paginate_array(merge_request.visible_closing_issues_for(current_user))
        issues = paginate(issues)

        external_issues, internal_issues = issues.partition { |issue| issue.is_a?(ExternalIssue) }

        data = Entities::IssueBasic.represent(internal_issues, current_user: current_user)
        data += Entities::ExternalIssue.represent(external_issues, current_user: current_user)

        data.as_json
      end
    end
  end
end