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# frozen_string_literal: true
# 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.
#
# For Geo's sake, pass in multiple shas rather than calling it multiple times,
# to avoid unnecessary syncing.
module Gitlab
module Git
class KeepAround
def self.execute(repository, shas)
new(repository).execute(shas)
end
def initialize(repository)
@repository = repository
end
def execute(shas)
shas.each do |sha|
next unless sha.present? && commit_by(oid: sha)
next if kept_around?(sha)
# This will still fail if the file is corrupted (e.g. 0 bytes)
raw_repository.write_ref(keep_around_ref_name(sha), sha)
rescue Gitlab::Git::CommandError => ex
Gitlab::AppLogger.error "Unable to create keep-around reference for repository #{disk_path}: #{ex}"
end
end
def kept_around?(sha)
ref_exists?(keep_around_ref_name(sha))
end
delegate :commit_by, :raw_repository, :ref_exists?, :disk_path, to: :@repository
private :commit_by, :raw_repository, :ref_exists?, :disk_path
private
def keep_around_ref_name(sha)
"refs/#{::Repository::REF_KEEP_AROUND}/#{sha}"
end
end
end
end
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