class Projects::MergeRequestsController < Projects::ApplicationController include ToggleSubscriptionAction include DiffForPath include DiffHelper include IssuableActions include RendersNotes include ToggleAwardEmoji include IssuableCollections before_action :module_enabled before_action :merge_request, only: [ :edit, :update, :show, :diffs, :commits, :conflicts, :conflict_for_path, :pipelines, :merge, :pipeline_status, :ci_environments_status, :toggle_subscription, :cancel_merge_when_pipeline_succeeds, :remove_wip, :resolve_conflicts, :assign_related_issues, :commit_change_content ] before_action :validates_merge_request, only: [:show, :diffs, :commits, :pipelines] before_action :define_show_vars, only: [:diffs, :commits, :conflicts, :conflict_for_path, :builds, :pipelines] before_action :define_commit_vars, only: [:diffs] before_action :ensure_ref_fetched, only: [:show, :diffs, :commits, :builds, :conflicts, :conflict_for_path, :pipelines] before_action :close_merge_request_without_source_project, only: [:show, :diffs, :commits, :builds, :pipelines] before_action :check_if_can_be_merged, only: :show before_action :apply_diff_view_cookie!, only: [:new_diffs] before_action :build_merge_request, only: [:new, :new_diffs] # Allow read any merge_request before_action :authorize_read_merge_request! # Allow write(create) merge_request before_action :authorize_create_merge_request!, only: [:new, :create] # Allow modify merge_request before_action :authorize_update_merge_request!, only: [:close, :edit, :update, :remove_wip, :sort] before_action :authenticate_user!, only: [:assign_related_issues] before_action :authorize_can_resolve_conflicts!, only: [:conflicts, :conflict_for_path, :resolve_conflicts] def index @collection_type = "MergeRequest" @merge_requests = merge_requests_collection @merge_requests = @merge_requests.page(params[:page]) @merge_requests = @merge_requests.preload(merge_request_diff: :merge_request) @issuable_meta_data = issuable_meta_data(@merge_requests, @collection_type) if @merge_requests.out_of_range? && @merge_requests.total_pages != 0 return redirect_to url_for(params.merge(page: @merge_requests.total_pages, only_path: true)) end if params[:label_name].present? labels_params = { project_id: @project.id, title: params[:label_name] } @labels = LabelsFinder.new(current_user, labels_params).execute end @users = [] if params[:assignee_id].present? assignee = User.find_by_id(params[:assignee_id]) @users.push(assignee) if assignee end if params[:author_id].present? author = User.find_by_id(params[:author_id]) @users.push(author) if author end respond_to do |format| format.html format.json do render json: { html: view_to_html_string("projects/merge_requests/_merge_requests"), labels: @labels.as_json(methods: :text_color) } end end end def show respond_to do |format| format.html do define_discussion_vars define_show_vars end format.json do Gitlab::PollingInterval.set_header(response, interval: 10_000) render json: serializer.represent(@merge_request, basic: params[:basic]) end format.patch do return render_404 unless @merge_request.diff_refs send_git_patch @project.repository, @merge_request.diff_refs end format.diff do return render_404 unless @merge_request.diff_refs send_git_diff @project.repository, @merge_request.diff_refs end end end def diffs apply_diff_view_cookie! respond_to do |format| format.html { define_discussion_vars } format.json do define_diff_vars define_diff_comment_vars @environment = @merge_request.environments_for(current_user).last render json: { html: view_to_html_string("projects/merge_requests/show/_diffs") } end end end # With an ID param, loads the MR at that ID. Otherwise, accepts the same params as #new # and uses that (unsaved) MR. # def diff_for_path if params[:id] merge_request define_diff_vars define_diff_comment_vars else build_merge_request @compare = @merge_request @diffs = @compare.diffs(diff_options) @diff_notes_disabled = true end define_commit_vars render_diff_for_path(@diffs) end def commits respond_to do |format| format.html do define_discussion_vars render 'show' end format.json do # Get commits from repository # or from cache if already merged @commits = @merge_request.commits @note_counts = Note.where(commit_id: @commits.map(&:id)). group(:commit_id).count render json: { html: view_to_html_string('projects/merge_requests/show/_commits') } end end end def conflicts respond_to do |format| format.html { define_discussion_vars } format.json do if @conflicts_list.can_be_resolved_in_ui? render json: @conflicts_list elsif @merge_request.can_be_merged? render json: { message: 'The merge conflicts for this merge request have already been resolved. Please return to the merge request.', type: 'error' } else render json: { message: 'The merge conflicts for this merge request cannot be resolved through GitLab. Please try to resolve them locally.', type: 'error' } end end end end def conflict_for_path return render_404 unless @conflicts_list.can_be_resolved_in_ui? file = @conflicts_list.file_for_path(params[:old_path], params[:new_path]) return render_404 unless file render json: file, full_content: true end def resolve_conflicts return render_404 unless @conflicts_list.can_be_resolved_in_ui? if @merge_request.can_be_merged? render status: :bad_request, json: { message: 'The merge conflicts for this merge request have already been resolved.' } return end begin MergeRequests::Conflicts::ResolveService. new(merge_request). execute(current_user, params) flash[:notice] = 'All merge conflicts were resolved. The merge request can now be merged.' render json: { redirect_to: namespace_project_merge_request_url(@project.namespace, @project, @merge_request, resolved_conflicts: true) } rescue Gitlab::Conflict::ResolutionError => e render status: :bad_request, json: { message: e.message } end end def pipelines @pipelines = @merge_request.all_pipelines respond_to do |format| format.html do define_discussion_vars render 'show' end format.json do Gitlab::PollingInterval.set_header(response, interval: 10_000) render json: PipelineSerializer .new(project: @project, current_user: @current_user) .represent(@pipelines) end end end def new respond_to do |format| format.html { define_new_vars } format.json do define_pipelines_vars Gitlab::PollingInterval.set_header(response, interval: 10_000) render json: { pipelines: PipelineSerializer .new(project: @project, current_user: @current_user) .represent(@pipelines) } end end end def new_diffs respond_to do |format| format.html do define_new_vars @show_changes_tab = true render "new" end format.json do @diffs = if @merge_request.can_be_created @merge_request.diffs(diff_options) else [] end @diff_notes_disabled = true @environment = @merge_request.environments_for(current_user).last render json: { html: view_to_html_string('projects/merge_requests/_new_diffs', diffs: @diffs, environment: @environment) } end end end def create @target_branches ||= [] @merge_request = MergeRequests::CreateService.new(project, current_user, merge_request_params).execute if @merge_request.valid? redirect_to(merge_request_path(@merge_request)) else @source_project = @merge_request.source_project @target_project = @merge_request.target_project render action: "new" end end def edit @source_project = @merge_request.source_project @target_project = @merge_request.target_project @target_branches = @merge_request.target_project.repository.branch_names end def update @merge_request = MergeRequests::UpdateService.new(project, current_user, merge_request_params).execute(@merge_request) respond_to do |format| format.html do if @merge_request.valid? redirect_to([@merge_request.target_project.namespace.becomes(Namespace), @merge_request.target_project, @merge_request]) else render :edit end end format.json do render json: @merge_request.to_json(include: { milestone: {}, assignee: { only: [:name, :username], methods: [:avatar_url] }, labels: { methods: :text_color } }, methods: [:task_status, :task_status_short]) end end rescue ActiveRecord::StaleObjectError render_conflict_response end def remove_wip @merge_request = MergeRequests::UpdateService .new(project, current_user, wip_event: 'unwip') .execute(@merge_request) render json: serializer.represent(@merge_request) end def commit_change_content render partial: 'projects/merge_requests/widget/commit_change_content', layout: false end def cancel_merge_when_pipeline_succeeds unless @merge_request.can_cancel_merge_when_pipeline_succeeds?(current_user) return access_denied! end MergeRequests::MergeWhenPipelineSucceedsService .new(@project, current_user) .cancel(@merge_request) render json: serializer.represent(@merge_request) end def merge return access_denied! unless @merge_request.can_be_merged_by?(current_user) status = merge! if @merge_request.merge_error render json: { status: status, merge_error: @merge_request.merge_error } else render json: { status: status } end end def branch_from # This is always source @source_project = @merge_request.nil? ? @project : @merge_request.source_project if params[:ref].present? @ref = params[:ref] @commit = @repository.commit("refs/heads/#{@ref}") end render layout: false end def branch_to @target_project = selected_target_project if params[:ref].present? @ref = params[:ref] @commit = @target_project.commit("refs/heads/#{@ref}") end render layout: false end def update_branches @target_project = selected_target_project @target_branches = @target_project.repository.branch_names render layout: false end def assign_related_issues result = MergeRequests::AssignIssuesService.new(project, current_user, merge_request: @merge_request).execute respond_to do |format| format.html do case result[:count] when 0 flash[:error] = "Failed to assign you issues related to the merge request" when 1 flash[:notice] = "1 issue has been assigned to you" else flash[:notice] = "#{result[:count]} issues have been assigned to you" end redirect_to(merge_request_path(@merge_request)) end end end def pipeline_status render json: PipelineSerializer .new(project: @project, current_user: @current_user) .represent_status(@merge_request.head_pipeline) end def ci_environments_status environments = begin @merge_request.environments_for(current_user).map do |environment| project = environment.project deployment = environment.first_deployment_for(@merge_request.diff_head_commit) stop_url = if environment.stop_action? && can?(current_user, :create_deployment, environment) stop_namespace_project_environment_path(project.namespace, project, environment) end metrics_url = if can?(current_user, :read_environment, environment) && environment.has_metrics? metrics_namespace_project_environment_deployment_path(environment.project.namespace, environment.project, environment, deployment) end { id: environment.id, name: environment.name, url: namespace_project_environment_path(project.namespace, project, environment), metrics_url: metrics_url, stop_url: stop_url, external_url: environment.external_url, external_url_formatted: environment.formatted_external_url, deployed_at: deployment.try(:created_at), deployed_at_formatted: deployment.try(:formatted_deployment_time) } end.compact end render json: environments end protected def selected_target_project if @project.id.to_s == params[:target_project_id] || @project.forked_project_link.nil? @project else @project.forked_project_link.forked_from_project end end def merge_request @issuable = @merge_request ||= @project.merge_requests.find_by!(iid: params[:id]) end alias_method :subscribable_resource, :merge_request alias_method :issuable, :merge_request alias_method :awardable, :merge_request def authorize_update_merge_request! return render_404 unless can?(current_user, :update_merge_request, @merge_request) end def authorize_admin_merge_request! return render_404 unless can?(current_user, :admin_merge_request, @merge_request) end def authorize_can_resolve_conflicts! @conflicts_list = MergeRequests::Conflicts::ListService.new(@merge_request) return render_404 unless @conflicts_list.can_be_resolved_by?(current_user) end def module_enabled return render_404 unless @project.feature_available?(:merge_requests, current_user) end def validates_merge_request # Show git not found page # if there is no saved commits between source & target branch if @merge_request.has_no_commits? # and if target branch doesn't exist return invalid_mr unless @merge_request.target_branch_exists? end end def define_show_vars @noteable = @merge_request @commits_count = @merge_request.commits_count if @merge_request.locked_long_ago? @merge_request.unlock_mr @merge_request.close end labels define_pipelines_vars end # Discussion tab data is rendered on html responses of actions # :show, :diff, :commits, :builds. but not when request the data through AJAX def define_discussion_vars # Build a note object for comment form @note = @project.notes.new(noteable: @merge_request) @discussions = @merge_request.discussions @notes = prepare_notes_for_rendering(@discussions.flat_map(&:notes)) end def define_commit_vars @commit = @merge_request.diff_head_commit @base_commit = @merge_request.diff_base_commit || @merge_request.likely_diff_base_commit end def define_diff_vars @merge_request_diff = if params[:diff_id] @merge_request.merge_request_diffs.viewable.find(params[:diff_id]) else @merge_request.merge_request_diff end @merge_request_diffs = @merge_request.merge_request_diffs.viewable.select_without_diff @comparable_diffs = @merge_request_diffs.select { |diff| diff.id < @merge_request_diff.id } if params[:start_sha].present? @start_sha = params[:start_sha] @start_version = @comparable_diffs.find { |diff| diff.head_commit_sha == @start_sha } unless @start_version @start_sha = @merge_request_diff.head_commit_sha @start_version = @merge_request_diff end end @compare = if @start_sha @merge_request_diff.compare_with(@start_sha) else @merge_request_diff end @diffs = @compare.diffs(diff_options) end def define_diff_comment_vars @new_diff_note_attrs = { noteable_type: 'MergeRequest', noteable_id: @merge_request.id } @diff_notes_disabled = false @use_legacy_diff_notes = !@merge_request.has_complete_diff_refs? @grouped_diff_discussions = @merge_request.grouped_diff_discussions(@compare.diff_refs) @notes = prepare_notes_for_rendering(@grouped_diff_discussions.values.flatten.flat_map(&:notes)) end def define_pipelines_vars @pipelines = @merge_request.all_pipelines @pipeline = @merge_request.head_pipeline @statuses_count = @pipeline.present? ? @pipeline.statuses.relevant.count : 0 end def define_new_vars @noteable = @merge_request @target_branches = if @merge_request.target_project @merge_request.target_project.repository.branch_names else [] end @target_project = merge_request.target_project @source_project = merge_request.source_project @commits = @merge_request.compare_commits.reverse @commit = @merge_request.diff_head_commit @base_commit = @merge_request.diff_base_commit @note_counts = Note.where(commit_id: @commits.map(&:id)). group(:commit_id).count @labels = LabelsFinder.new(current_user, project_id: @project.id).execute @show_changes_tab = params[:show_changes].present? define_pipelines_vars end def invalid_mr # Render special view for MR with removed target branch render 'invalid' end def merge_request_params params.require(:merge_request) .permit(merge_request_params_ce) end def merge_request_params_ce [ :assignee_id, :description, :force_remove_source_branch, :lock_version, :milestone_id, :source_branch, :source_project_id, :state_event, :target_branch, :target_project_id, :task_num, :title, label_ids: [] ] end def merge_params params.permit(:should_remove_source_branch, :commit_message) end # Make sure merge requests created before 8.0 # have head file in refs/merge-requests/ def ensure_ref_fetched @merge_request.ensure_ref_fetched end def merge_when_pipeline_succeeds_active? params[:merge_when_pipeline_succeeds].present? && @merge_request.head_pipeline && @merge_request.head_pipeline.active? end def build_merge_request params[:merge_request] ||= ActionController::Parameters.new(source_project: @project) @merge_request = MergeRequests::BuildService.new(project, current_user, merge_request_params.merge(diff_options: diff_options)).execute end def close_merge_request_without_source_project if !@merge_request.source_project && @merge_request.open? @merge_request.close end end private def check_if_can_be_merged @merge_request.check_if_can_be_merged end def merge! # Disable the CI check if merge_when_pipeline_succeeds is enabled since we have # to wait until CI completes to know unless @merge_request.mergeable?(skip_ci_check: merge_when_pipeline_succeeds_active?) return :failed end return :sha_mismatch if params[:sha] != @merge_request.diff_head_sha @merge_request.update(merge_error: nil) if params[:merge_when_pipeline_succeeds].present? return :failed unless @merge_request.head_pipeline if @merge_request.head_pipeline.active? MergeRequests::MergeWhenPipelineSucceedsService .new(@project, current_user, merge_params) .execute(@merge_request) :merge_when_pipeline_succeeds elsif @merge_request.head_pipeline.success? # This can be triggered when a user clicks the auto merge button while # the tests finish at about the same time MergeWorker.perform_async(@merge_request.id, current_user.id, params) :success else :failed end else MergeWorker.perform_async(@merge_request.id, current_user.id, params) :success end end def serializer MergeRequestSerializer.new(current_user: current_user, project: merge_request.project) end end