class GitPushService < BaseService attr_accessor :push_data, :push_commits include Gitlab::CurrentSettings include Gitlab::Access # The N most recent commits to process in a single push payload. PROCESS_COMMIT_LIMIT = 100 # This method will be called after each git update # and only if the provided user and project are present in GitLab. # # All callbacks for post receive action should be placed here. # # Next, this method: # 1. Creates the push event # 2. Updates merge requests # 3. Recognizes cross-references from commit messages # 4. Executes the project's webhooks # 5. Executes the project's services # 6. Checks if the project's main language has changed # def execute @project.repository.after_create if @project.empty_repo? @project.repository.after_push_commit(branch_name) if push_remove_branch? @project.repository.after_remove_branch @push_commits = [] elsif push_to_new_branch? @project.repository.after_create_branch # Re-find the pushed commits. if is_default_branch? # Initial push to the default branch. Take the full history of that branch as "newly pushed". process_default_branch else # Use the pushed commits that aren't reachable by the default branch # as a heuristic. This may include more commits than are actually pushed, but # that shouldn't matter because we check for existing cross-references later. @push_commits = @project.repository.commits_between(@project.default_branch, params[:newrev]) # don't process commits for the initial push to the default branch process_commit_messages end elsif push_to_existing_branch? # Collect data for this git push @push_commits = @project.repository.commits_between(params[:oldrev], params[:newrev]) process_commit_messages # Update the bare repositories info/attributes file using the contents of the default branches # .gitattributes file update_gitattributes if is_default_branch? end execute_related_hooks perform_housekeeping update_caches update_signatures end def update_gitattributes @project.repository.copy_gitattributes(params[:ref]) end def update_caches if is_default_branch? if push_to_new_branch? # If this is the initial push into the default branch, the file type caches # will already be reset as a result of `Project#change_head`. types = [] else paths = Set.new @push_commits.last(PROCESS_COMMIT_LIMIT).each do |commit| commit.raw_deltas.each do |diff| paths << diff.new_path end end types = Gitlab::FileDetector.types_in_paths(paths.to_a) end else types = [] end ProjectCacheWorker.perform_async(@project.id, types, [:commit_count, :repository_size]) end def update_signatures commit_shas = @push_commits.last(PROCESS_COMMIT_LIMIT).map(&:sha) return if commit_shas.empty? shas_with_cached_signatures = GpgSignature.where(commit_sha: commit_shas).pluck(:commit_sha) commit_shas -= shas_with_cached_signatures return if commit_shas.empty? commit_shas = Gitlab::Git::Commit.shas_with_signatures(project.repository, commit_shas) commit_shas.each do |sha| CreateGpgSignatureWorker.perform_async(sha, project.id) end end # Schedules processing of commit messages. def process_commit_messages default = is_default_branch? @push_commits.last(PROCESS_COMMIT_LIMIT).each do |commit| if commit.matches_cross_reference_regex? ProcessCommitWorker .perform_async(project.id, current_user.id, commit.to_hash, default) end end end protected def execute_related_hooks # Update merge requests that may be affected by this push. A new branch # could cause the last commit of a merge request to change. # UpdateMergeRequestsWorker .perform_async(@project.id, current_user.id, params[:oldrev], params[:newrev], params[:ref]) EventCreateService.new.push(@project, current_user, build_push_data) Ci::CreatePipelineService.new(@project, current_user, build_push_data).execute(:push) SystemHookPushWorker.perform_async(build_push_data.dup, :push_hooks) @project.execute_hooks(build_push_data.dup, :push_hooks) @project.execute_services(build_push_data.dup, :push_hooks) if push_remove_branch? AfterBranchDeleteService .new(project, current_user) .execute(branch_name) end end def perform_housekeeping housekeeping = Projects::HousekeepingService.new(@project) housekeeping.increment! housekeeping.execute if housekeeping.needed? rescue Projects::HousekeepingService::LeaseTaken end def process_default_branch @push_commits_count = project.repository.commit_count_for_ref(params[:ref]) offset = [@push_commits_count - PROCESS_COMMIT_LIMIT, 0].max @push_commits = project.repository.commits(params[:newrev], offset: offset, limit: PROCESS_COMMIT_LIMIT) # Ensure HEAD points to the default branch in case it is not master project.change_head(branch_name) # Set protection on the default branch if configured if current_application_settings.default_branch_protection != PROTECTION_NONE && !ProtectedBranch.protected?(@project, @project.default_branch) params = { name: @project.default_branch, push_access_levels_attributes: [{ access_level: current_application_settings.default_branch_protection == PROTECTION_DEV_CAN_PUSH ? Gitlab::Access::DEVELOPER : Gitlab::Access::MASTER }], merge_access_levels_attributes: [{ access_level: current_application_settings.default_branch_protection == PROTECTION_DEV_CAN_MERGE ? Gitlab::Access::DEVELOPER : Gitlab::Access::MASTER }] } ProtectedBranches::CreateService.new(@project, current_user, params).execute end end def build_push_data @push_data ||= Gitlab::DataBuilder::Push.build( @project, current_user, params[:oldrev], params[:newrev], params[:ref], @push_commits, commits_count: @push_commits_count) end def push_to_existing_branch? # Return if this is not a push to a branch (e.g. new commits) Gitlab::Git.branch_ref?(params[:ref]) && !Gitlab::Git.blank_ref?(params[:oldrev]) end def push_to_new_branch? Gitlab::Git.branch_ref?(params[:ref]) && Gitlab::Git.blank_ref?(params[:oldrev]) end def push_remove_branch? Gitlab::Git.branch_ref?(params[:ref]) && Gitlab::Git.blank_ref?(params[:newrev]) end def push_to_branch? Gitlab::Git.branch_ref?(params[:ref]) end def is_default_branch? Gitlab::Git.branch_ref?(params[:ref]) && (Gitlab::Git.ref_name(params[:ref]) == project.default_branch || project.default_branch.nil?) end def commit_user(commit) commit.author || current_user end def branch_name @branch_name ||= Gitlab::Git.ref_name(params[:ref]) end end