module Gitlab module GitalyClient class Commit # The ID of empty tree. # See http://stackoverflow.com/a/40884093/1856239 and https://github.com/git/git/blob/3ad8b5bf26362ac67c9020bf8c30eee54a84f56d/cache.h#L1011-L1012 EMPTY_TREE_ID = '4b825dc642cb6eb9a060e54bf8d69288fbee4904'.freeze def initialize(repository) @gitaly_repo = repository.gitaly_repository @repository = repository end def is_ancestor(ancestor_id, child_id) request = Gitaly::CommitIsAncestorRequest.new( repository: @gitaly_repo, ancestor_id: ancestor_id, child_id: child_id ) GitalyClient.call(@repository.storage, :commit, :commit_is_ancestor, request).value end def diff_from_parent(commit, options = {}) request_params = commit_diff_request_params(commit, options) request_params[:ignore_whitespace_change] = options.fetch(:ignore_whitespace_change, false) request = Gitaly::CommitDiffRequest.new(request_params) response = GitalyClient.call(@repository.storage, :diff, :commit_diff, request) Gitlab::Git::DiffCollection.new(GitalyClient::DiffStitcher.new(response), options) end def commit_deltas(commit) request = Gitaly::CommitDeltaRequest.new(commit_diff_request_params(commit)) response = GitalyClient.call(@repository.storage, :diff, :commit_delta, request) response.flat_map do |msg| msg.deltas.map { |d| Gitlab::Git::Diff.new(d) } end end def tree_entry(ref, path, limit = nil) request = Gitaly::TreeEntryRequest.new( repository: @gitaly_repo, revision: ref, path: path.dup.force_encoding(Encoding::ASCII_8BIT), limit: limit.to_i ) response = GitalyClient.call(@repository.storage, :commit, :tree_entry, request) entry = response.first return unless entry.oid.present? if entry.type == :BLOB rest_of_data = response.reduce("") { |memo, msg| memo << msg.data } entry.data += rest_of_data end entry end private def commit_diff_request_params(commit, options = {}) parent_id = commit.parents[0]&.id || EMPTY_TREE_ID { repository: @gitaly_repo, left_commit_id: parent_id, right_commit_id: commit.id, paths: options.fetch(:paths, []) } end end end end