45 lines
1.3 KiB
Ruby
45 lines
1.3 KiB
Ruby
# frozen_string_literal: true
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# rubocop:disable Style/Documentation
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module Gitlab
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module BackgroundMigration
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class ScheduleDiffFilesDeletion
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class MergeRequestDiff < ActiveRecord::Base
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self.table_name = 'merge_request_diffs'
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belongs_to :merge_request
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include EachBatch
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end
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DIFF_BATCH_SIZE = 5_000
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INTERVAL = 5.minutes
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MIGRATION = 'DeleteDiffFiles'
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def perform
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diffs = MergeRequestDiff
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.from("(#{diffs_collection.to_sql}) merge_request_diffs")
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.where('merge_request_diffs.id != merge_request_diffs.latest_merge_request_diff_id')
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.select(:id)
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diffs.each_batch(of: DIFF_BATCH_SIZE) do |relation, index|
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ids = relation.pluck(:id)
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BackgroundMigrationWorker.perform_in(index * INTERVAL, MIGRATION, [ids])
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end
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end
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private
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def diffs_collection
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MergeRequestDiff
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.joins(:merge_request)
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.where("merge_requests.state = 'merged'")
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.where('merge_requests.latest_merge_request_diff_id IS NOT NULL')
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.where("merge_request_diffs.state NOT IN ('without_files', 'empty')")
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.select('merge_requests.latest_merge_request_diff_id, merge_request_diffs.id')
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end
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end
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end
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end
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