require 'securerandom' class Repository include Gitlab::ShellAdapter attr_accessor :path_with_namespace, :project class CommitError < StandardError; end # Methods that cache data from the Git repository. # # Each entry in this Array should have a corresponding method with the exact # same name. The cache key used by those methods must also match method's # name. # # For example, for entry `:readme` there's a method called `readme` which # stores its data in the `readme` cache key. CACHED_METHODS = %i(size commit_count readme version contribution_guide changelog license_blob license_key gitignore koding_yml gitlab_ci_yml branch_names tag_names branch_count tag_count avatar exists? empty? root_ref) # Certain method caches should be refreshed when certain types of files are # changed. This Hash maps file types (as returned by Gitlab::FileDetector) to # the corresponding methods to call for refreshing caches. METHOD_CACHES_FOR_FILE_TYPES = { readme: :readme, changelog: :changelog, license: %i(license_blob license_key), contributing: :contribution_guide, version: :version, gitignore: :gitignore, koding: :koding_yml, gitlab_ci: :gitlab_ci_yml, avatar: :avatar } # Wraps around the given method and caches its output in Redis and an instance # variable. # # This only works for methods that do not take any arguments. def self.cache_method(name, fallback: nil) original = :"_uncached_#{name}" alias_method(original, name) define_method(name) do cache_method_output(name, fallback: fallback) { __send__(original) } end end def self.storages Gitlab.config.repositories.storages end def initialize(path_with_namespace, project) @path_with_namespace = path_with_namespace @project = project end def raw_repository return nil unless path_with_namespace @raw_repository ||= Gitlab::Git::Repository.new(path_to_repo) end def update_autocrlf_option raw_repository.autocrlf = :input if raw_repository.autocrlf != :input end # Return absolute path to repository def path_to_repo @path_to_repo ||= File.expand_path( File.join(@project.repository_storage_path, path_with_namespace + ".git") ) end # # Git repository can contains some hidden refs like: # /refs/notes/* # /refs/git-as-svn/* # /refs/pulls/* # This refs by default not visible in project page and not cloned to client side. # # This method return true if repository contains some content visible in project page. # def has_visible_content? branch_count > 0 end def commit(ref = 'HEAD') return nil unless exists? commit = if ref.is_a?(Gitlab::Git::Commit) ref else Gitlab::Git::Commit.find(raw_repository, ref) end commit = ::Commit.new(commit, @project) if commit commit rescue Rugged::OdbError, Rugged::TreeError nil end def commits(ref, path: nil, limit: nil, offset: nil, skip_merges: false, after: nil, before: nil) options = { repo: raw_repository, ref: ref, path: path, limit: limit, offset: offset, after: after, before: before, # --follow doesn't play well with --skip. See: # https://gitlab.com/gitlab-org/gitlab-ce/issues/3574#note_3040520 follow: false, skip_merges: skip_merges } commits = Gitlab::Git::Commit.where(options) commits = Commit.decorate(commits, @project) if commits.present? commits end def commits_between(from, to) commits = Gitlab::Git::Commit.between(raw_repository, from, to) commits = Commit.decorate(commits, @project) if commits.present? commits end def find_commits_by_message(query, ref = nil, path = nil, limit = 1000, offset = 0) unless exists? && has_visible_content? && query.present? return [] end ref ||= root_ref args = %W( #{Gitlab.config.git.bin_path} log #{ref} --pretty=%H --skip #{offset} --max-count #{limit} --grep=#{query} --regexp-ignore-case ) args = args.concat(%W(-- #{path})) if path.present? git_log_results = Gitlab::Popen.popen(args, path_to_repo).first.lines git_log_results.map { |c| commit(c.chomp) }.compact end def find_branch(name, fresh_repo: true) # Since the Repository object may have in-memory index changes, invalidating the memoized Repository object may # cause unintended side effects. Because finding a branch is a read-only operation, we can safely instantiate # a new repo here to ensure a consistent state to avoid a libgit2 bug where concurrent access (e.g. via git gc) # may cause the branch to "disappear" erroneously or have the wrong SHA. # # See: https://github.com/libgit2/libgit2/issues/1534 and https://gitlab.com/gitlab-org/gitlab-ce/issues/15392 raw_repo = if fresh_repo Gitlab::Git::Repository.new(path_to_repo) else raw_repository end raw_repo.find_branch(name) end def find_tag(name) tags.find { |tag| tag.name == name } end def add_branch(user, branch_name, target) oldrev = Gitlab::Git::BLANK_SHA ref = Gitlab::Git::BRANCH_REF_PREFIX + branch_name target = commit(target).try(:id) return false unless target GitHooksService.new.execute(user, path_to_repo, oldrev, target, ref) do update_ref!(ref, target, oldrev) end after_create_branch find_branch(branch_name) end def add_tag(user, tag_name, target, message = nil) oldrev = Gitlab::Git::BLANK_SHA ref = Gitlab::Git::TAG_REF_PREFIX + tag_name target = commit(target).try(:id) return false unless target options = { message: message, tagger: user_to_committer(user) } if message GitHooksService.new.execute(user, path_to_repo, oldrev, target, ref) do |service| raw_tag = rugged.tags.create(tag_name, target, options) service.newrev = raw_tag.target_id end find_tag(tag_name) end def rm_branch(user, branch_name) before_remove_branch branch = find_branch(branch_name) oldrev = branch.try(:dereferenced_target).try(:id) newrev = Gitlab::Git::BLANK_SHA ref = Gitlab::Git::BRANCH_REF_PREFIX + branch_name GitHooksService.new.execute(user, path_to_repo, oldrev, newrev, ref) do update_ref!(ref, newrev, oldrev) end after_remove_branch true end def rm_tag(tag_name) before_remove_tag begin rugged.tags.delete(tag_name) true rescue Rugged::ReferenceError false end end def ref_names branch_names + tag_names end def branch_exists?(branch_name) branch_names.include?(branch_name) end def ref_exists?(ref) rugged.references.exist?(ref) rescue Rugged::ReferenceError false end def update_ref!(name, newrev, oldrev) # We use 'git update-ref' because libgit2/rugged currently does not # offer 'compare and swap' ref updates. Without compare-and-swap we can # (and have!) accidentally reset the ref to an earlier state, clobbering # commits. See also https://github.com/libgit2/libgit2/issues/1534. command = %W(#{Gitlab.config.git.bin_path} update-ref --stdin -z) _, status = Gitlab::Popen.popen(command, path_to_repo) do |stdin| stdin.write("update #{name}\x00#{newrev}\x00#{oldrev}\x00") end return if status.zero? raise CommitError.new("Could not update branch #{name.sub('refs/heads/', '')}. Please refresh and try again.") end # Makes sure a commit is kept around when Git garbage collection runs. # Git GC will delete commits from the repository that are no longer in any # branches or tags, but we want to keep some of these commits around, for # example if they have comments or CI builds. def keep_around(sha) return unless sha && commit(sha) return if kept_around?(sha) # This will still fail if the file is corrupted (e.g. 0 bytes) begin rugged.references.create(keep_around_ref_name(sha), sha, force: true) rescue Rugged::ReferenceError => ex Rails.logger.error "Unable to create keep-around reference for repository #{path}: #{ex}" rescue Rugged::OSError => ex raise unless ex.message =~ /Failed to create locked file/ && ex.message =~ /File exists/ Rails.logger.error "Unable to create keep-around reference for repository #{path}: #{ex}" end end def kept_around?(sha) ref_exists?(keep_around_ref_name(sha)) end def diverging_commit_counts(branch) root_ref_hash = raw_repository.rev_parse_target(root_ref).oid cache.fetch(:"diverging_commit_counts_#{branch.name}") do # Rugged seems to throw a `ReferenceError` when given branch_names rather # than SHA-1 hashes number_commits_behind = raw_repository. count_commits_between(branch.dereferenced_target.sha, root_ref_hash) number_commits_ahead = raw_repository. count_commits_between(root_ref_hash, branch.dereferenced_target.sha) { behind: number_commits_behind, ahead: number_commits_ahead } end end def expire_tags_cache expire_method_caches(%i(tag_names tag_count)) @tags = nil end def expire_branches_cache expire_method_caches(%i(branch_names branch_count)) @local_branches = nil end def expire_statistics_caches expire_method_caches(%i(size commit_count)) end def expire_all_method_caches expire_method_caches(CACHED_METHODS) end # Expires the caches of a specific set of methods def expire_method_caches(methods) methods.each do |key| cache.expire(key) ivar = cache_instance_variable_name(key) remove_instance_variable(ivar) if instance_variable_defined?(ivar) end end def expire_avatar_cache expire_method_caches(%i(avatar)) end # Refreshes the method caches of this repository. # # types - An Array of file types (e.g. `:readme`) used to refresh extra # caches. def refresh_method_caches(types) to_refresh = [] types.each do |type| methods = METHOD_CACHES_FOR_FILE_TYPES[type.to_sym] to_refresh.concat(Array(methods)) if methods end expire_method_caches(to_refresh) to_refresh.each { |method| send(method) } end def expire_branch_cache(branch_name = nil) # When we push to the root branch we have to flush the cache for all other # branches as their statistics are based on the commits relative to the # root branch. if !branch_name || branch_name == root_ref branches.each do |branch| cache.expire(:"diverging_commit_counts_#{branch.name}") end # In case a commit is pushed to a non-root branch we only have to flush the # cache for said branch. else cache.expire(:"diverging_commit_counts_#{branch_name}") end end def expire_root_ref_cache expire_method_caches(%i(root_ref)) end # Expires the cache(s) used to determine if a repository is empty or not. def expire_emptiness_caches return unless empty? expire_method_caches(%i(empty?)) end def lookup_cache @lookup_cache ||= {} end def expire_exists_cache expire_method_caches(%i(exists?)) end # expire cache that doesn't depend on repository data (when expiring) def expire_content_cache expire_tags_cache expire_branches_cache expire_root_ref_cache expire_emptiness_caches expire_exists_cache expire_statistics_caches end # Runs code after a repository has been created. def after_create expire_exists_cache expire_root_ref_cache expire_emptiness_caches repository_event(:create_repository) end # Runs code just before a repository is deleted. def before_delete expire_exists_cache expire_all_method_caches expire_branch_cache if exists? expire_content_cache repository_event(:remove_repository) end # Runs code just before the HEAD of a repository is changed. def before_change_head # Cached divergent commit counts are based on repository head expire_branch_cache expire_root_ref_cache repository_event(:change_default_branch) end # Runs code before pushing (= creating or removing) a tag. def before_push_tag expire_statistics_caches expire_emptiness_caches expire_tags_cache repository_event(:push_tag) end # Runs code before removing a tag. def before_remove_tag expire_tags_cache expire_statistics_caches repository_event(:remove_tag) end def before_import expire_content_cache end # Runs code after a repository has been forked/imported. def after_import expire_content_cache expire_tags_cache expire_branches_cache end # Runs code after a new commit has been pushed. def after_push_commit(branch_name) expire_statistics_caches expire_branch_cache(branch_name) repository_event(:push_commit, branch: branch_name) end # Runs code after a new branch has been created. def after_create_branch expire_branches_cache repository_event(:push_branch) end # Runs code before removing an existing branch. def before_remove_branch expire_branches_cache repository_event(:remove_branch) end # Runs code after an existing branch has been removed. def after_remove_branch expire_branches_cache end def method_missing(m, *args, &block) if m == :lookup && !block_given? lookup_cache[m] ||= {} lookup_cache[m][args.join(":")] ||= raw_repository.send(m, *args, &block) else raw_repository.send(m, *args, &block) end end def respond_to_missing?(method, include_private = false) raw_repository.respond_to?(method, include_private) || super end def blob_at(sha, path) unless Gitlab::Git.blank_ref?(sha) Blob.decorate(Gitlab::Git::Blob.find(self, sha, path)) end end def blob_by_oid(oid) Gitlab::Git::Blob.raw(self, oid) end def root_ref if raw_repository raw_repository.root_ref else # When the repo does not exist we raise this error so no data is cached. raise Rugged::ReferenceError end end cache_method :root_ref def exists? refs_directory_exists? end cache_method :exists? def empty? raw_repository.empty? end cache_method :empty? # The size of this repository in megabytes. def size exists? ? raw_repository.size : 0.0 end cache_method :size, fallback: 0.0 def commit_count root_ref ? raw_repository.commit_count(root_ref) : 0 end cache_method :commit_count, fallback: 0 def branch_names branches.map(&:name) end cache_method :branch_names, fallback: [] def tag_names raw_repository.tag_names end cache_method :tag_names, fallback: [] def branch_count branches.size end cache_method :branch_count, fallback: 0 def tag_count raw_repository.rugged.tags.count end cache_method :tag_count, fallback: 0 def avatar if tree = file_on_head(:avatar) tree.path end end cache_method :avatar def readme if head = tree(:head) head.readme end end cache_method :readme def version file_on_head(:version) end cache_method :version def contribution_guide file_on_head(:contributing) end cache_method :contribution_guide def changelog file_on_head(:changelog) end cache_method :changelog def license_blob file_on_head(:license) end cache_method :license_blob def license_key return unless exists? Licensee.license(path).try(:key) end cache_method :license_key def gitignore file_on_head(:gitignore) end cache_method :gitignore def koding_yml file_on_head(:koding) end cache_method :koding_yml def gitlab_ci_yml file_on_head(:gitlab_ci) end cache_method :gitlab_ci_yml def head_commit @head_commit ||= commit(self.root_ref) end def head_tree if head_commit @head_tree ||= Tree.new(self, head_commit.sha, nil) end end def tree(sha = :head, path = nil, recursive: false) if sha == :head return unless head_commit if path.nil? return head_tree else sha = head_commit.sha end end Tree.new(self, sha, path, recursive: recursive) end def blob_at_branch(branch_name, path) last_commit = commit(branch_name) if last_commit blob_at(last_commit.sha, path) else nil end end # Returns url for submodule # # Ex. # @repository.submodule_url_for('master', 'rack') # # => git@localhost:rack.git # def submodule_url_for(ref, path) if submodules(ref).any? submodule = submodules(ref)[path] if submodule submodule['url'] end end end def last_commit_for_path(sha, path) sha = last_commit_id_for_path(sha, path) commit(sha) end def last_commit_id_for_path(sha, path) key = path.blank? ? "last_commit_id_for_path:#{sha}" : "last_commit_id_for_path:#{sha}:#{Digest::SHA1.hexdigest(path)}" cache.fetch(key) do args = %W(#{Gitlab.config.git.bin_path} rev-list --max-count=1 #{sha} -- #{path}) Gitlab::Popen.popen(args, path_to_repo).first.strip end end def next_branch(name, opts = {}) branch_ids = self.branch_names.map do |n| next 1 if n == name result = n.match(/\A#{name}-([0-9]+)\z/) result[1].to_i if result end.compact highest_branch_id = branch_ids.max || 0 return name if opts[:mild] && 0 == highest_branch_id "#{name}-#{highest_branch_id + 1}" end # Remove archives older than 2 hours def branches_sorted_by(value) case value when 'name' branches.sort_by(&:name) when 'updated_desc' branches.sort do |a, b| commit(b.dereferenced_target).committed_date <=> commit(a.dereferenced_target).committed_date end when 'updated_asc' branches.sort do |a, b| commit(a.dereferenced_target).committed_date <=> commit(b.dereferenced_target).committed_date end else branches end end def tags_sorted_by(value) case value when 'name' VersionSorter.rsort(tags) { |tag| tag.name } when 'updated_desc' tags_sorted_by_committed_date.reverse when 'updated_asc' tags_sorted_by_committed_date else tags end end def contributors commits = self.commits(nil, limit: 2000, offset: 0, skip_merges: true) commits.group_by(&:author_email).map do |email, commits| contributor = Gitlab::Contributor.new contributor.email = email commits.each do |commit| if contributor.name.blank? contributor.name = commit.author_name end contributor.commits += 1 end contributor end end def ref_name_for_sha(ref_path, sha) args = %W(#{Gitlab.config.git.bin_path} for-each-ref --count=1 #{ref_path} --contains #{sha}) # Not found -> ["", 0] # Found -> ["b8d95eb4969eefacb0a58f6a28f6803f8070e7b9 commit\trefs/environments/production/77\n", 0] Gitlab::Popen.popen(args, path_to_repo).first.split.last end def refs_contains_sha(ref_type, sha) args = %W(#{Gitlab.config.git.bin_path} #{ref_type} --contains #{sha}) names = Gitlab::Popen.popen(args, path_to_repo).first if names.respond_to?(:split) names = names.split("\n").map(&:strip) names.each do |name| name.slice! '* ' end names else [] end end def branch_names_contains(sha) refs_contains_sha('branch', sha) end def tag_names_contains(sha) refs_contains_sha('tag', sha) end def local_branches @local_branches ||= raw_repository.local_branches end alias_method :branches, :local_branches def tags @tags ||= raw_repository.tags end def commit_dir(user, path, message, branch, author_email: nil, author_name: nil) update_branch_with_hooks(user, branch) do |ref| options = { commit: { branch: ref, message: message, update_ref: false } } options.merge!(get_committer_and_author(user, email: author_email, name: author_name)) raw_repository.mkdir(path, options) end end def commit_file(user, path, content, message, branch, update, author_email: nil, author_name: nil) update_branch_with_hooks(user, branch) do |ref| options = { commit: { branch: ref, message: message, update_ref: false }, file: { content: content, path: path, update: update } } options.merge!(get_committer_and_author(user, email: author_email, name: author_name)) Gitlab::Git::Blob.commit(raw_repository, options) end end def update_file(user, path, content, branch:, previous_path:, message:, author_email: nil, author_name: nil) update_branch_with_hooks(user, branch) do |ref| options = { commit: { branch: ref, message: message, update_ref: false }, file: { content: content, path: path, update: true } } options.merge!(get_committer_and_author(user, email: author_email, name: author_name)) if previous_path && previous_path != path options[:file][:previous_path] = previous_path Gitlab::Git::Blob.rename(raw_repository, options) else Gitlab::Git::Blob.commit(raw_repository, options) end end end def remove_file(user, path, message, branch, author_email: nil, author_name: nil) update_branch_with_hooks(user, branch) do |ref| options = { commit: { branch: ref, message: message, update_ref: false }, file: { path: path } } options.merge!(get_committer_and_author(user, email: author_email, name: author_name)) Gitlab::Git::Blob.remove(raw_repository, options) end end def multi_action(user:, branch:, message:, actions:, author_email: nil, author_name: nil) update_branch_with_hooks(user, branch) do |ref| index = rugged.index parents = [] branch = find_branch(ref) if branch last_commit = branch.dereferenced_target index.read_tree(last_commit.raw_commit.tree) parents = [last_commit.sha] end actions.each do |action| case action[:action] when :create, :update, :move mode = case action[:action] when :update index.get(action[:file_path])[:mode] when :move index.get(action[:previous_path])[:mode] end mode ||= 0o100644 index.remove(action[:previous_path]) if action[:action] == :move content = action[:encoding] == 'base64' ? Base64.decode64(action[:content]) : action[:content] oid = rugged.write(content, :blob) index.add(path: action[:file_path], oid: oid, mode: mode) when :delete index.remove(action[:file_path]) end end options = { tree: index.write_tree(rugged), message: message, parents: parents } options.merge!(get_committer_and_author(user, email: author_email, name: author_name)) Rugged::Commit.create(rugged, options) end end def get_committer_and_author(user, email: nil, name: nil) committer = user_to_committer(user) author = Gitlab::Git::committer_hash(email: email, name: name) || committer { author: author, committer: committer } end def user_to_committer(user) Gitlab::Git::committer_hash(email: user.email, name: user.name) end def can_be_merged?(source_sha, target_branch) our_commit = rugged.branches[target_branch].target their_commit = rugged.lookup(source_sha) if our_commit && their_commit !rugged.merge_commits(our_commit, their_commit).conflicts? else false end end def merge(user, merge_request, options = {}) our_commit = rugged.branches[merge_request.target_branch].target their_commit = rugged.lookup(merge_request.diff_head_sha) raise "Invalid merge target" if our_commit.nil? raise "Invalid merge source" if their_commit.nil? merge_index = rugged.merge_commits(our_commit, their_commit) return false if merge_index.conflicts? update_branch_with_hooks(user, merge_request.target_branch) do actual_options = options.merge( parents: [our_commit, their_commit], tree: merge_index.write_tree(rugged), ) commit_id = Rugged::Commit.create(rugged, actual_options) merge_request.update(in_progress_merge_commit_sha: commit_id) commit_id end end def revert(user, commit, base_branch, revert_tree_id = nil) source_sha = find_branch(base_branch).dereferenced_target.sha revert_tree_id ||= check_revert_content(commit, base_branch) return false unless revert_tree_id update_branch_with_hooks(user, base_branch) do committer = user_to_committer(user) source_sha = Rugged::Commit.create(rugged, message: commit.revert_message(user), author: committer, committer: committer, tree: revert_tree_id, parents: [rugged.lookup(source_sha)]) end end def cherry_pick(user, commit, base_branch, cherry_pick_tree_id = nil) source_sha = find_branch(base_branch).dereferenced_target.sha cherry_pick_tree_id ||= check_cherry_pick_content(commit, base_branch) return false unless cherry_pick_tree_id update_branch_with_hooks(user, base_branch) do committer = user_to_committer(user) source_sha = Rugged::Commit.create(rugged, message: commit.message, author: { email: commit.author_email, name: commit.author_name, time: commit.authored_date }, committer: committer, tree: cherry_pick_tree_id, parents: [rugged.lookup(source_sha)]) end end def resolve_conflicts(user, branch, params) update_branch_with_hooks(user, branch) do committer = user_to_committer(user) Rugged::Commit.create(rugged, params.merge(author: committer, committer: committer)) end end def check_revert_content(commit, base_branch) source_sha = find_branch(base_branch).dereferenced_target.sha args = [commit.id, source_sha] args << { mainline: 1 } if commit.merge_commit? revert_index = rugged.revert_commit(*args) return false if revert_index.conflicts? tree_id = revert_index.write_tree(rugged) return false unless diff_exists?(source_sha, tree_id) tree_id end def check_cherry_pick_content(commit, base_branch) source_sha = find_branch(base_branch).dereferenced_target.sha args = [commit.id, source_sha] args << 1 if commit.merge_commit? cherry_pick_index = rugged.cherrypick_commit(*args) return false if cherry_pick_index.conflicts? tree_id = cherry_pick_index.write_tree(rugged) return false unless diff_exists?(source_sha, tree_id) tree_id end def diff_exists?(sha1, sha2) rugged.diff(sha1, sha2).size > 0 end def merged_to_root_ref?(branch_name) branch_commit = commit(branch_name) root_ref_commit = commit(root_ref) if branch_commit same_head = branch_commit.id == root_ref_commit.id !same_head && is_ancestor?(branch_commit.id, root_ref_commit.id) else nil end end def merge_base(first_commit_id, second_commit_id) first_commit_id = commit(first_commit_id).try(:id) || first_commit_id second_commit_id = commit(second_commit_id).try(:id) || second_commit_id rugged.merge_base(first_commit_id, second_commit_id) rescue Rugged::ReferenceError nil end def is_ancestor?(ancestor_id, descendant_id) merge_base(ancestor_id, descendant_id) == ancestor_id end def empty_repo? !exists? || !has_visible_content? end def search_files_by_content(query, ref) return [] if empty_repo? || query.blank? offset = 2 args = %W(#{Gitlab.config.git.bin_path} grep -i -I -n --before-context #{offset} --after-context #{offset} -E -e #{Regexp.escape(query)} #{ref || root_ref}) Gitlab::Popen.popen(args, path_to_repo).first.scrub.split(/^--$/) end def search_files_by_name(query, ref) return [] if empty_repo? || query.blank? args = %W(#{Gitlab.config.git.bin_path} ls-tree --full-tree -r #{ref || root_ref} --name-status | #{Regexp.escape(query)}) Gitlab::Popen.popen(args, path_to_repo).first.lines.map(&:strip) end def fetch_ref(source_path, source_ref, target_ref) args = %W(#{Gitlab.config.git.bin_path} fetch --no-tags -f #{source_path} #{source_ref}:#{target_ref}) Gitlab::Popen.popen(args, path_to_repo) end def create_ref(ref, ref_path) fetch_ref(path_to_repo, ref, ref_path) end def update_branch_with_hooks(current_user, branch) update_autocrlf_option ref = Gitlab::Git::BRANCH_REF_PREFIX + branch target_branch = find_branch(branch) was_empty = empty? # Make commit newrev = yield(ref) unless newrev raise CommitError.new('Failed to create commit') end if rugged.lookup(newrev).parent_ids.empty? || target_branch.nil? oldrev = Gitlab::Git::BLANK_SHA else oldrev = rugged.merge_base(newrev, target_branch.dereferenced_target.sha) end GitHooksService.new.execute(current_user, path_to_repo, oldrev, newrev, ref) do update_ref!(ref, newrev, oldrev) if was_empty || !target_branch # If repo was empty expire cache after_create if was_empty after_create_branch end end newrev end def ls_files(ref) actual_ref = ref || root_ref raw_repository.ls_files(actual_ref) end def gitattribute(path, name) raw_repository.attributes(path)[name] end def copy_gitattributes(ref) actual_ref = ref || root_ref begin raw_repository.copy_gitattributes(actual_ref) true rescue Gitlab::Git::Repository::InvalidRef false end end # Caches the supplied block both in a cache and in an instance variable. # # The cache key and instance variable are named the same way as the value of # the `key` argument. # # This method will return `nil` if the corresponding instance variable is also # set to `nil`. This ensures we don't keep yielding the block when it returns # `nil`. # # key - The name of the key to cache the data in. # fallback - A value to fall back to in the event of a Git error. def cache_method_output(key, fallback: nil, &block) ivar = cache_instance_variable_name(key) if instance_variable_defined?(ivar) instance_variable_get(ivar) else begin instance_variable_set(ivar, cache.fetch(key, &block)) rescue Rugged::ReferenceError, Gitlab::Git::Repository::NoRepository # if e.g. HEAD or the entire repository doesn't exist we want to # gracefully handle this and not cache anything. fallback end end end def cache_instance_variable_name(key) :"@#{key.to_s.tr('?!', '')}" end def file_on_head(type) if head = tree(:head) head.blobs.find do |file| Gitlab::FileDetector.type_of(file.name) == type end end end private def refs_directory_exists? return false unless path_with_namespace File.exist?(File.join(path_to_repo, 'refs')) end def cache @cache ||= RepositoryCache.new(path_with_namespace, @project.id) end def tags_sorted_by_committed_date tags.sort_by { |tag| tag.dereferenced_target.committed_date } end def keep_around_ref_name(sha) "refs/keep-around/#{sha}" end def repository_event(event, tags = {}) Gitlab::Metrics.add_event(event, { path: path_with_namespace }.merge(tags)) end end