module API class MergeRequests < Grape::API include PaginationParams before { authenticate! } params do 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? 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]) end render_api_error!(errors, 400) end def issue_entity(project) if project.has_external_issue_tracker? Entities::ExternalIssue else Entities::IssueBasic end 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 :milestone_id, type: Integer, desc: 'The ID of a milestone to assign the merge request' optional :labels, type: String, desc: 'Comma-separated list of label names' optional :remove_source_branch, type: Boolean, desc: 'Remove source branch when merging' end end desc 'List merge requests' do success Entities::MergeRequestBasic end params do optional :state, type: String, values: %w[opened closed merged all], default: 'all', desc: 'Return opened, closed, 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 :iids, type: Array[Integer], desc: 'The IID array of merge requests' use :pagination end get ":id/merge_requests" do authorize! :read_merge_request, user_project merge_requests = user_project.merge_requests.inc_notes_with_associations merge_requests = filter_by_iid(merge_requests, params[:iids]) if params[:iids].present? merge_requests = case params[:state] when 'opened' then merge_requests.opened when 'closed' then merge_requests.closed when 'merged' then merge_requests.merged else merge_requests end merge_requests = merge_requests.reorder(params[:order_by] => params[:sort]) present paginate(merge_requests), with: Entities::MergeRequestBasic, current_user: current_user, project: user_project 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 authorize! :create_merge_request, user_project mr_params = declared_params(include_missing: false) mr_params[:force_remove_source_branch] = mr_params.delete(:remove_source_branch) if mr_params[:remove_source_branch].present? 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) merge_request.destroy end params do requires :merge_request_iid, type: Integer, desc: 'The IID of a merge request' 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 end desc 'Get the commits of a merge request' do success Entities::RepoCommit 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::RepoCommit 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 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' use :optional_params at_least_one_of :title, :target_branch, :description, :assignee_id, :milestone_id, :labels, :state_event, :remove_source_branch end put ':id/merge_requests/:merge_request_iid' do 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[:remove_source_branch].present? 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 :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' end put ':id/merge_requests/:merge_request_iid/merge' do merge_request = find_project_merge_request(params[:merge_request_iid]) # 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? render_api_error!('Branch cannot be merged', 406) unless merge_request.mergeable? 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 merge_params = { commit_message: params[:merge_commit_message], should_remove_source_branch: params[:should_remove_source_branch] } if params[: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 '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) ::MergeRequest::MergeWhenPipelineSucceedsService .new(merge_request.target_project, current_user) .cancel(merge_request) end desc 'Get the comments of a merge request' do success Entities::MRNote end params do use :pagination end get ':id/merge_requests/:merge_request_iid/comments' do merge_request = find_merge_request_with_access(params[:merge_request_iid]) present paginate(merge_request.notes.fresh), with: Entities::MRNote end desc 'Post a comment to a merge request' do success Entities::MRNote end params do requires :note, type: String, desc: 'The text of the comment' end post ':id/merge_requests/:merge_request_iid/comments' do merge_request = find_merge_request_with_access(params[:merge_request_iid], :create_note) opts = { note: params[:note], noteable_type: 'MergeRequest', noteable_id: merge_request.id } note = ::Notes::CreateService.new(user_project, current_user, opts).execute if note.save present note, with: Entities::MRNote else render_api_error!("Failed to save note #{note.errors.messages}", 400) end 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.closes_issues(current_user)) present paginate(issues), with: issue_entity(user_project), current_user: current_user end end end end