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# frozen_string_literal: true
module Projects
module ContainerRepository
module ThirdParty
class CleanupTagsService < CleanupTagsBaseService
def initialize(container_repository:, current_user: nil, params: {})
super
@params = params.dup
@counts = { cached_tags_count: 0 }
end
def execute
tags = container_repository.tags
@counts[:original_size] = tags.size
filter_out_latest!(tags)
filter_by_name!(tags)
tags = truncate(tags)
populate_from_cache(tags)
tags = filter_keep_n(tags)
tags = filter_by_older_than(tags)
@counts[:before_delete_size] = tags.size
delete_tags(tags).merge(@counts).tap do |result|
result[:deleted_size] = result[:deleted]&.size
result[:status] = :error if @counts[:before_truncate_size] != @counts[:after_truncate_size]
end
end
private
def filter_keep_n(tags)
tags, tags_to_keep = partition_by_keep_n(tags)
cache_tags(tags_to_keep)
tags
end
def filter_by_older_than(tags)
tags, tags_to_keep = partition_by_older_than(tags)
cache_tags(tags_to_keep)
tags
end
def pushed_at(tag)
tag.created_at
end
def truncate(tags)
@counts[:before_truncate_size] = tags.size
@counts[:after_truncate_size] = tags.size
return tags if max_list_size == 0
# truncate the list to make sure that after the #filter_keep_n
# execution, the resulting list will be max_list_size
truncated_size = max_list_size + keep_n_as_integer
return tags if tags.size <= truncated_size
tags = tags.sample(truncated_size)
@counts[:after_truncate_size] = tags.size
tags
end
def populate_from_cache(tags)
@counts[:cached_tags_count] = cache.populate(tags) if caching_enabled?
end
def cache_tags(tags)
cache.insert(tags, older_than_in_seconds) if caching_enabled?
end
def cache
strong_memoize(:cache) do
::Gitlab::ContainerRepository::Tags::Cache.new(container_repository)
end
end
def caching_enabled?
result = current_application_settings.container_registry_expiration_policies_caching &&
container_expiration_policy &&
older_than.present?
!!result
end
def max_list_size
current_application_settings.container_registry_cleanup_tags_service_max_list_size.to_i
end
def current_application_settings
::Gitlab::CurrentSettings.current_application_settings
end
end
end
end
end
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