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# frozen_string_literal: true
module CanMoveRepositoryStorage
extend ActiveSupport::Concern
RepositoryReadOnlyError = Class.new(StandardError)
# Tries to set repository as read_only, checking for existing Git transfers in
# progress beforehand. Setting a repository read-only will fail if it is
# already in that state.
#
# @return nil. Failures will raise an exception
def set_repository_read_only!(skip_git_transfer_check: false)
with_lock do
raise RepositoryReadOnlyError, _('Git transfer in progress') if
!skip_git_transfer_check && git_transfer_in_progress?
raise RepositoryReadOnlyError, _('Repository already read-only') if
_safe_read_repository_read_only_column
raise ActiveRecord::RecordNotSaved, _('Database update failed') unless
_update_repository_read_only_column(true)
nil
end
end
# Set repository as writable again. Unlike setting it read-only, this will
# succeed if the repository is already writable.
def set_repository_writable!
with_lock do
raise ActiveRecord::RecordNotSaved, _('Database update failed') unless
_update_repository_read_only_column(false)
nil
end
end
def git_transfer_in_progress?
reference_counter(type: repository.repo_type).value > 0
end
def reference_counter(type:)
Gitlab::ReferenceCounter.new(type.identifier_for_container(self))
end
private
# Not all resources that can move repositories have the `repository_read_only`
# in their table, for example groups. We need these methods to override the
# behavior in those classes in order to access the column.
def _safe_read_repository_read_only_column
# This was added originally this way because of
# https://gitlab.com/gitlab-org/gitlab/-/commit/43f9b98302d3985312c9f8b66018e2835d8293d2
self.class.where(id: id).pick(:repository_read_only)
end
def _update_repository_read_only_column(value)
update_column(:repository_read_only, value)
end
end
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