0fc9f9d3e7
DB schema generated by a migration may look different in rails 4 and 5 (because rails 5 may use different default values). For this reason it's important to explicitly set for which rails version a migration was written for. See https://stackoverflow.com/questions/35929869/activerecordmigration-deprecation-warning-asks-for-rails-version-but-im-no/35930912#35930912
130 lines
3.2 KiB
Ruby
130 lines
3.2 KiB
Ruby
class RenameReservedProjectNames < ActiveRecord::Migration[4.2]
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include Gitlab::Database::MigrationHelpers
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include Gitlab::ShellAdapter
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DOWNTIME = false
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THREAD_COUNT = 8
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KNOWN_PATHS = %w(.well-known
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all
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blame
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blob
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commits
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create
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create_dir
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edit
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files
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find_file
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groups
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hooks
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issues
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logs_tree
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merge_requests
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new
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preview
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projects
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raw
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repository
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robots.txt
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s
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snippets
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teams
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tree
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u
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unsubscribes
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update
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users
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wikis).freeze
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def up
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queues = Array.new(THREAD_COUNT) { Queue.new }
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start = false
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threads = Array.new(THREAD_COUNT) do |index|
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Thread.new do
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queue = queues[index]
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# Wait until we have input to process.
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until start; end
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rename_projects(queue.pop) until queue.empty?
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end
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end
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enum = queues.each
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reserved_projects.each_slice(100) do |slice|
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begin
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queue = enum.next
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rescue StopIteration
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enum.rewind
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retry
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end
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queue << slice
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end
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start = true
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threads.each(&:join)
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end
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def down
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# nothing to do here
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end
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private
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def reserved_projects
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Project.unscoped
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.includes(:namespace)
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.where('EXISTS (SELECT 1 FROM namespaces WHERE projects.namespace_id = namespaces.id)')
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.where('projects.path' => KNOWN_PATHS)
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end
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def route_exists?(full_path)
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quoted_path = ActiveRecord::Base.connection.quote_string(full_path)
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ActiveRecord::Base.connection
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.select_all("SELECT id, path FROM routes WHERE path = '#{quoted_path}'").present?
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end
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# Adds number to the end of the path that is not taken by other route
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def rename_path(namespace_path, path_was)
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counter = 0
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path = "#{path_was}#{counter}"
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while route_exists?("#{namespace_path}/#{path}")
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counter += 1
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path = "#{path_was}#{counter}"
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end
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path
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end
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def rename_projects(projects)
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projects.each do |project|
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id = project.id
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path_was = project.path
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namespace_path = project.namespace.path
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path = rename_path(namespace_path, path_was)
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begin
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# Because project path update is quite complex operation we can't safely
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# copy-paste all code from GitLab. As exception we use Rails code here
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if rename_project_row(project, path)
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Projects::AfterRenameService.new(project).execute
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end
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rescue Exception => e # rubocop: disable Lint/RescueException
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Rails.logger.error "Exception when renaming project #{id}: #{e.message}"
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end
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end
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end
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def rename_project_row(project, path)
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project.respond_to?(:update_attributes) &&
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project.update(path: path) &&
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defined?(Projects::AfterRenameService)
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end
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end
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