gitlab-org--gitlab-foss/lib/gitlab/git/rugged_impl/commit.rb
Stan Hu 2fc4de6ab6 Bring back Rugged implementation of ListCommitsByOid
This brings back changes in
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/20432.

For users using Gitaly on top of NFS, accessing the Git data directly
via Rugged may be faster than going through than Gitaly. This merge
request introduces the feature flag `rugged_list_commits_by_oid` to
activate the Rugged method.

For one customer, we saw that ListCommitsByOid was the second highest
used endpoint that may be causing increased load.
2019-04-17 05:09:18 -07:00

109 lines
3.1 KiB
Ruby

# frozen_string_literal: true
# NOTE: This code is legacy. Do not add/modify code here unless you have
# discussed with the Gitaly team. See
# https://docs.gitlab.com/ee/development/gitaly.html#legacy-rugged-code
# for more details.
# rubocop:disable Gitlab/ModuleWithInstanceVariables
module Gitlab
module Git
module RuggedImpl
module Commit
module ClassMethods
extend ::Gitlab::Utils::Override
def rugged_find(repo, commit_id)
obj = repo.rev_parse_target(commit_id)
obj.is_a?(::Rugged::Commit) ? obj : nil
rescue ::Rugged::Error
nil
end
# This needs to return an array of Gitlab::Git:Commit objects
# instead of Rugged::Commit objects to ensure upstream models
# operate on a consistent interface. Unlike
# Gitlab::Git::Commit.find, Gitlab::Git::Commit.batch_by_oid
# doesn't attempt to decorate the result.
def rugged_batch_by_oid(repo, oids)
oids.map { |oid| rugged_find(repo, oid) }
.compact
.map { |commit| decorate(repo, commit) }
end
override :find_commit
def find_commit(repo, commit_id)
if Feature.enabled?(:rugged_find_commit)
rugged_find(repo, commit_id)
else
super
end
end
override :batch_by_oid
def batch_by_oid(repo, oids)
if Feature.enabled?(:rugged_list_commits_by_oid)
rugged_batch_by_oid(repo, oids)
else
super
end
end
end
extend ::Gitlab::Utils::Override
override :init_commit
def init_commit(raw_commit)
case raw_commit
when ::Rugged::Commit
init_from_rugged(raw_commit)
else
super
end
end
override :commit_tree_entry
def commit_tree_entry(path)
if Feature.enabled?(:rugged_commit_tree_entry)
rugged_tree_entry(path)
else
super
end
end
# Is this the same as Blob.find_entry_by_path ?
def rugged_tree_entry(path)
rugged_commit.tree.path(path)
rescue Rugged::TreeError
nil
end
def rugged_commit
@rugged_commit ||= if raw_commit.is_a?(Rugged::Commit)
raw_commit
else
@repository.rev_parse_target(id)
end
end
def init_from_rugged(commit)
author = commit.author
committer = commit.committer
@raw_commit = commit
@id = commit.oid
@message = commit.message
@authored_date = author[:time]
@committed_date = committer[:time]
@author_name = author[:name]
@author_email = author[:email]
@committer_name = committer[:name]
@committer_email = committer[:email]
@parent_ids = commit.parents.map(&:oid)
end
end
end
end
end
# rubocop:enable Gitlab/ModuleWithInstanceVariables