class Projects::MergeRequestsController < Projects::ApplicationController include ToggleSubscriptionAction include DiffForPath include DiffHelper include IssuableActions include NotesHelper include ToggleAwardEmoji include IssuableCollections before_action :module_enabled before_action :merge_request, only: [ :edit, :update, :show, :diffs, :commits, :conflicts, :builds, :pipelines, :merge, :merge_check, :ci_status, :toggle_subscription, :cancel_merge_when_build_succeeds, :remove_wip, :resolve_conflicts ] before_action :validates_merge_request, only: [:show, :diffs, :commits, :builds, :pipelines] before_action :define_show_vars, only: [:show, :diffs, :commits, :conflicts, :builds, :pipelines] before_action :define_widget_vars, only: [:merge, :cancel_merge_when_build_succeeds, :merge_check] before_action :define_commit_vars, only: [:diffs] before_action :define_diff_comment_vars, only: [:diffs] before_action :ensure_ref_fetched, only: [:show, :diffs, :commits, :builds, :conflicts, :pipelines] before_action :close_merge_request_without_source_project, only: [:show, :diffs, :commits, :builds, :pipelines] # 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 :authorize_can_resolve_conflicts!, only: [:conflicts, :resolve_conflicts] def index @merge_requests = merge_requests_collection @merge_requests = @merge_requests.page(params[:page]) @merge_requests = @merge_requests.preload(:target_project) @labels = @project.labels.where(title: params[:label_name]) 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 { define_discussion_vars } format.json do render json: @merge_request 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! @merge_request_diff = if params[:diff_id] @merge_request.merge_request_diffs.find(params[:diff_id]) else @merge_request.merge_request_diff end @merge_request_diffs = @merge_request.merge_request_diffs.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 render_404 end end respond_to do |format| format.html { define_discussion_vars } format.json do if @start_sha compared_diff_version else original_diff_version end 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_comment_vars else build_merge_request @diff_notes_disabled = true @grouped_diff_discussions = {} end define_commit_vars render_diff_for_path(@merge_request.diffs(diff_options)) 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 @merge_request.conflicts_can_be_resolved_in_ui? render json: @merge_request.conflicts 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 resolve_conflicts return render_404 unless @merge_request.conflicts_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::ResolveService.new(@merge_request.source_project, current_user, params).execute(@merge_request) 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::File::MissingResolution => e render status: :bad_request, json: { message: e.message } end end def builds respond_to do |format| format.html do define_discussion_vars render 'show' end format.json { render json: { html: view_to_html_string('projects/merge_requests/show/_builds') } } end end def pipelines @pipelines = @merge_request.all_pipelines respond_to do |format| format.html do define_discussion_vars render 'show' end format.json { render json: { html: view_to_html_string('projects/merge_requests/show/_pipelines') } } end end def new apply_diff_view_cookie! build_merge_request @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 @diffs = @merge_request.diffs(diff_options) if @merge_request.compare @diff_notes_disabled = true @pipeline = @merge_request.pipeline @statuses = @pipeline.statuses.relevant if @pipeline @note_counts = Note.where(commit_id: @commits.map(&:id)). group(:commit_id).count 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) if @merge_request.valid? respond_to do |format| format.html do redirect_to([@merge_request.target_project.namespace.becomes(Namespace), @merge_request.target_project, @merge_request]) end format.json do render json: @merge_request.to_json(include: { milestone: {}, assignee: { methods: :avatar_url }, labels: { methods: :text_color } }) end end else render "edit" end rescue ActiveRecord::StaleObjectError @conflict = true render :edit end def remove_wip MergeRequests::UpdateService.new(project, current_user, title: @merge_request.wipless_title).execute(@merge_request) redirect_to namespace_project_merge_request_path(@project.namespace, @project, @merge_request), notice: "The merge request can now be merged." end def merge_check @merge_request.check_if_can_be_merged render partial: "projects/merge_requests/widget/show.html.haml", layout: false end def cancel_merge_when_build_succeeds return access_denied! unless @merge_request.can_cancel_merge_when_build_succeeds?(current_user) MergeRequests::MergeWhenBuildSucceedsService.new(@project, current_user).cancel(@merge_request) end def merge return access_denied! unless @merge_request.can_be_merged_by?(current_user) # Disable the CI check if merge_when_build_succeeds is enabled since we have # to wait until CI completes to know unless @merge_request.mergeable?(skip_ci_check: merge_when_build_succeeds_active?) @status = :failed return end if params[:sha] != @merge_request.diff_head_sha @status = :sha_mismatch return end @merge_request.update(merge_error: nil) if params[:merge_when_build_succeeds].present? unless @merge_request.pipeline @status = :failed return end if @merge_request.pipeline.active? MergeRequests::MergeWhenBuildSucceedsService.new(@project, current_user, merge_params) .execute(@merge_request) @status = :merge_when_build_succeeds elsif @merge_request.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) @status = :success else @status = :failed end else MergeWorker.perform_async(@merge_request.id, current_user.id, params) @status = :success end end def branch_from # This is always source @source_project = @merge_request.nil? ? @project : @merge_request.source_project @commit = @repository.commit(params[:ref]) if params[:ref].present? render layout: false end def branch_to @target_project = selected_target_project @commit = @target_project.commit(params[:ref]) if params[:ref].present? render layout: false end def update_branches @target_project = selected_target_project @target_branches = @target_project.repository.branch_names render layout: false end def ci_status pipeline = @merge_request.pipeline if pipeline status = pipeline.status coverage = pipeline.try(:coverage) status = "success_with_warnings" if pipeline.success? && pipeline.has_warnings? status ||= "preparing" else ci_service = @merge_request.source_project.ci_service status = ci_service.commit_status(merge_request.diff_head_sha, merge_request.source_branch) if ci_service if ci_service.respond_to?(:commit_coverage) coverage = ci_service.commit_coverage(merge_request.diff_head_sha, merge_request.source_branch) end end response = { title: merge_request.title, sha: merge_request.diff_head_commit.short_id, status: status, coverage: coverage } render json: response 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! return render_404 unless @merge_request.conflicts_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.commits.blank? # 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 @pipeline = @merge_request.pipeline @statuses = @pipeline.statuses.relevant if @pipeline if @merge_request.locked_long_ago? @merge_request.unlock_mr @merge_request.close end 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 preload_noteable_for_regular_notes(@discussions.flat_map(&:notes)) # This is not executed lazily @notes = Banzai::NoteRenderer.render( @discussions.flat_map(&:notes), @project, current_user, @path, @project_wiki, @ref ) preload_max_access_for_authors(@notes, @project) end def define_widget_vars @pipeline = @merge_request.pipeline @pipelines = [@pipeline].compact 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_comment_vars @comments_target = { noteable_type: 'MergeRequest', noteable_id: @merge_request.id } @use_legacy_diff_notes = !@merge_request.has_complete_diff_refs? @grouped_diff_discussions = @merge_request.notes.inc_relations_for_view.grouped_diff_discussions Banzai::NoteRenderer.render( @grouped_diff_discussions.values.flat_map(&:notes), @project, current_user, @path, @project_wiki, @ref ) 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( :title, :assignee_id, :source_project_id, :source_branch, :target_project_id, :target_branch, :milestone_id, :state_event, :description, :task_num, :force_remove_source_branch, :lock_version, 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_build_succeeds_active? params[:merge_when_build_succeeds].present? && @merge_request.pipeline && @merge_request.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).execute end def compared_diff_version @diff_notes_disabled = true @diffs = @merge_request_diff.compare_with(@start_sha).diffs(diff_options) end def original_diff_version @diff_notes_disabled = !@merge_request_diff.latest? @diffs = @merge_request_diff.diffs(diff_options) end def close_merge_request_without_source_project if !@merge_request.source_project && @merge_request.open? @merge_request.close end end end