module Gitlab module GithubImport class Importer include Gitlab::ShellAdapter attr_reader :client, :project, :repo, :repo_url def initialize(project) @project = project @repo = project.import_source @repo_url = project.import_url if credentials @client = Client.new(credentials[:user]) @formatter = Gitlab::ImportFormatter.new else raise Projects::ImportService::Error, "Unable to find project import data credentials for project ID: #{@project.id}" end end def execute import_labels && import_milestones && import_issues && import_pull_requests && import_wiki end private def credentials @credentials ||= project.import_data.credentials if project.import_data end def import_labels client.labels(repo).each do |raw_data| Label.create!(LabelFormatter.new(project, raw_data).attributes) end true rescue ActiveRecord::RecordInvalid => e raise Projects::ImportService::Error, e.message end def import_milestones client.list_milestones(repo, state: :all).each do |raw_data| Milestone.create!(MilestoneFormatter.new(project, raw_data).attributes) end true rescue ActiveRecord::RecordInvalid => e raise Projects::ImportService::Error, e.message end def import_issues client.list_issues(repo, state: :all, sort: :created, direction: :asc).each do |raw_data| gh_issue = IssueFormatter.new(project, raw_data) if gh_issue.valid? issue = Issue.create!(gh_issue.attributes) apply_labels(gh_issue.number, issue) if gh_issue.has_comments? import_comments(gh_issue.number, issue) end end end true rescue ActiveRecord::RecordInvalid => e raise Projects::ImportService::Error, e.message end def import_pull_requests pull_requests = client.pull_requests(repo, state: :all, sort: :created, direction: :asc) .map { |raw| PullRequestFormatter.new(project, raw) } .select(&:valid?) source_branches_removed = pull_requests.reject(&:source_branch_exists?).map { |pr| [pr.source_branch_name, pr.source_branch_sha] } target_branches_removed = pull_requests.reject(&:target_branch_exists?).map { |pr| [pr.target_branch_name, pr.target_branch_sha] } branches_removed = source_branches_removed | target_branches_removed create_refs(branches_removed) pull_requests.each do |pull_request| merge_request = MergeRequest.new(pull_request.attributes) if merge_request.save apply_labels(pull_request.number, merge_request) import_comments(pull_request.number, merge_request) import_comments_on_diff(pull_request.number, merge_request) end end delete_refs(branches_removed) true rescue ActiveRecord::RecordInvalid => e raise Projects::ImportService::Error, e.message end def create_refs(branches) branches.each do |name, sha| client.create_ref(repo, "refs/heads/#{name}", sha) end project.repository.fetch_ref(repo_url, '+refs/heads/*', 'refs/heads/*') end def delete_refs(branches) branches.each do |name, _| client.delete_ref(repo, "heads/#{name}") project.repository.rm_branch(project.creator, name) end end def apply_labels(number, issuable) issue = client.issue(repo, number) if issue.labels.count > 0 label_ids = issue.labels.map do |raw| Label.find_by(LabelFormatter.new(project, raw).attributes).try(:id) end issuable.update_attribute(:label_ids, label_ids) end end def import_comments(issue_number, noteable) comments = client.issue_comments(repo, issue_number) create_comments(comments, noteable) end def import_comments_on_diff(pull_request_number, merge_request) comments = client.pull_request_comments(repo, pull_request_number) create_comments(comments, merge_request) end def create_comments(comments, noteable) comments.each do |raw_data| comment = CommentFormatter.new(project, raw_data) noteable.notes.create!(comment.attributes) end end def import_wiki unless project.wiki_enabled? wiki = WikiFormatter.new(project) gitlab_shell.import_repository(wiki.path_with_namespace, wiki.import_url) project.update_attribute(:wiki_enabled, true) end true rescue Gitlab::Shell::Error => e # GitHub error message when the wiki repo has not been created, # this means that repo has wiki enabled, but have no pages. So, # we can skip the import. if e.message !~ /repository not exported/ raise Projects::ImportService::Error, e.message else true end end end end end