87 lines
2.5 KiB
Ruby
87 lines
2.5 KiB
Ruby
# frozen_string_literal: true
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module MergeRequests
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class CleanupRefsService
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include BaseServiceUtility
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TIME_THRESHOLD = 14.days
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attr_reader :merge_request
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def self.schedule(merge_request)
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merge_request.create_cleanup_schedule(scheduled_at: TIME_THRESHOLD.from_now)
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end
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def initialize(merge_request)
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@merge_request = merge_request
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@repository = merge_request.project.repository
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@ref_path = merge_request.ref_path
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@merge_ref_path = merge_request.merge_ref_path
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@ref_head_sha = @repository.commit(merge_request.ref_path)&.id
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@merge_ref_sha = merge_request.merge_ref_head&.id
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end
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def execute
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return error("Merge request is not scheduled to be cleaned up yet.") unless scheduled?
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return error("Merge request has not been closed nor merged for #{TIME_THRESHOLD.inspect}.") unless eligible?
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# Ensure that commit shas of refs are kept around so we won't lose them when GC runs.
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keep_around
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return error('Failed to create keep around refs.') unless kept_around?
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return error('Failed to cache merge ref sha.') unless cache_merge_ref_sha
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delete_refs if repository.exists?
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return error('Failed to update schedule.') unless update_schedule
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success
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end
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private
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attr_reader :repository, :ref_path, :merge_ref_path, :ref_head_sha, :merge_ref_sha
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def scheduled?
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merge_request.cleanup_schedule.present? && merge_request.cleanup_schedule.scheduled_at <= Time.current
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end
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def eligible?
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return met_time_threshold?(merge_request.metrics&.latest_closed_at) if merge_request.closed?
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merge_request.merged? && met_time_threshold?(merge_request.metrics&.merged_at)
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end
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def met_time_threshold?(attr)
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attr.nil? || attr.to_i <= TIME_THRESHOLD.ago.to_i
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end
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def kept_around?
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service = Gitlab::Git::KeepAround.new(repository)
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[ref_head_sha, merge_ref_sha].compact.all? do |sha|
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service.kept_around?(sha)
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end
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end
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def keep_around
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repository.keep_around(ref_head_sha, merge_ref_sha)
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end
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def cache_merge_ref_sha
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return true if merge_ref_sha.nil?
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# Caching the merge ref sha is needed before we delete the merge ref so
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# we can still show the merge ref diff (via `MergeRequest#merge_ref_head`)
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merge_request.update_column(:merge_ref_sha, merge_ref_sha)
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end
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def delete_refs
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repository.delete_refs(ref_path, merge_ref_path)
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end
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def update_schedule
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merge_request.cleanup_schedule.update(completed_at: Time.current)
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end
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end
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end
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