debian-mirror-gitlab/lib/gitlab/github_import/page_counter.rb

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2018-03-17 18:26:18 +05:30
# frozen_string_literal: true
module Gitlab
module GithubImport
# PageCounter can be used to keep track of the last imported page of a
# collection, allowing workers to resume where they left off in the event of
# an error.
class PageCounter
attr_reader :cache_key
# The base cache key to use for storing the last page number.
CACHE_KEY = 'github-importer/page-counter/%{project}/%{collection}'.freeze
def initialize(project, collection)
@cache_key = CACHE_KEY % { project: project.id, collection: collection }
end
# Sets the page number to the given value.
#
# Returns true if the page number was overwritten, false otherwise.
def set(page)
Caching.write_if_greater(cache_key, page)
end
# Returns the current value from the cache.
def current
Caching.read_integer(cache_key) || 1
end
end
end
end