module Commits class CreateService < ::BaseService ValidationError = Class.new(StandardError) ChangeError = Class.new(StandardError) def initialize(*args) super @start_project = params[:start_project] || @project @start_branch = params[:start_branch] @branch_name = params[:branch_name] end def execute validate! new_commit = create_commit! success(result: new_commit) rescue ValidationError, ChangeError, Gitlab::Git::Index::IndexError, Repository::CommitError, GitHooksService::PreReceiveError => ex error(ex.message) end private def create_commit! raise NotImplementedError end def raise_error(message) raise ValidationError, message end def different_branch? @start_branch != @branch_name || @start_project != @project end def validate! validate_permissions! validate_on_branch! validate_branch_existance! validate_new_branch_name! if different_branch? end def validate_permissions! allowed = ::Gitlab::UserAccess.new(current_user, project: project).can_push_to_branch?(@branch_name) unless allowed raise_error("You are not allowed to push into this branch") end end def validate_on_branch! if !@start_project.empty_repo? && !@start_project.repository.branch_exists?(@start_branch) raise_error('You can only create or edit files when you are on a branch') end end def validate_branch_existance! if !project.empty_repo? && different_branch? && repository.branch_exists?(@branch_name) raise_error("A branch called '#{@branch_name}' already exists. Switch to that branch in order to make changes") end end def validate_new_branch_name! result = ValidateNewBranchService.new(project, current_user).execute(@branch_name) if result[:status] == :error raise_error("Something went wrong when we tried to create '#{@branch_name}' for you: #{result[:message]}") end end end end