debian-mirror-gitlab/db/post_migrate/20170523083112_migrate_old_artifacts.rb

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2017-09-10 17:25:29 +05:30
class MigrateOldArtifacts < ActiveRecord::Migration
include Gitlab::Database::MigrationHelpers
DOWNTIME = false
disable_ddl_transaction!
# This uses special heuristic to find potential candidates for data migration
# Read more about this here: https://gitlab.com/gitlab-org/gitlab-ce/issues/32036#note_30422345
def up
builds_with_artifacts.find_each do |build|
build.migrate_artifacts!
end
end
def down
end
private
def builds_with_artifacts
Build.with_artifacts
.joins('JOIN projects ON projects.id = ci_builds.project_id')
.where('ci_builds.id < ?', min_id)
.where('projects.ci_id IS NOT NULL')
.select('id', 'created_at', 'project_id', 'projects.ci_id AS ci_id')
end
def min_id
Build.joins('JOIN projects ON projects.id = ci_builds.project_id')
.where('projects.ci_id IS NULL')
.pluck('coalesce(min(ci_builds.id), 0)')
.first
end
class Build < ActiveRecord::Base
self.table_name = 'ci_builds'
scope :with_artifacts, -> { where.not(artifacts_file: [nil, '']) }
def migrate_artifacts!
return unless File.exist?(source_artifacts_path)
return if File.exist?(target_artifacts_path)
ensure_target_path
FileUtils.move(source_artifacts_path, target_artifacts_path)
end
private
def source_artifacts_path
@source_artifacts_path ||=
File.join(Gitlab.config.artifacts.path,
created_at.utc.strftime('%Y_%m'),
ci_id.to_s, id.to_s)
end
def target_artifacts_path
@target_artifacts_path ||=
File.join(Gitlab.config.artifacts.path,
created_at.utc.strftime('%Y_%m'),
project_id.to_s, id.to_s)
end
def ensure_target_path
directory = File.dirname(target_artifacts_path)
FileUtils.mkdir_p(directory) unless Dir.exist?(directory)
end
end
end