112 lines
		
	
	
		
			4.0 KiB
		
	
	
	
		
			Ruby
		
	
	
	
			
		
		
	
	
			112 lines
		
	
	
		
			4.0 KiB
		
	
	
	
		
			Ruby
		
	
	
	
# frozen_string_literal: true
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# The purpose of this code is to transform legacy `database.yml`
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# into a `database.yml` containing `main:` as a name of a first database
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#
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# This should be removed once all places using legacy `database.yml`
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# are fixed. The likely moment to remove this check is the %14.0.
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#
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# This converts the following syntax:
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#
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# production:
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#   adapter: postgresql
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#   database: gitlabhq_production
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#   username: git
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#   password: "secure password"
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#   host: localhost
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#
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# Into:
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#
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# production:
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#   main:
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#     adapter: postgresql
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#     database: gitlabhq_production
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#     username: git
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#     password: "secure password"
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#     host: localhost
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#
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module Gitlab
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  module Patch
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    module DatabaseConfig
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      extend ActiveSupport::Concern
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      prepended do
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        attr_reader :uses_legacy_database_config
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      end
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      def load_database_yaml
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        return super unless Gitlab.ee?
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        super.deep_merge(load_geo_database_yaml)
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      end
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      # This method is taken from Rails to load a database YAML file without
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      # evaluating ERB. This allows us to create the rake tasks for the Geo
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      # tracking database without filling in the configuration values or
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      # loading the environment. To be removed when we start configure Geo
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      # tracking database in database.yml instead of custom database_geo.yml
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      #
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      # https://github.com/rails/rails/blob/v6.1.4/railties/lib/rails/application/configuration.rb#L255
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      def load_geo_database_yaml
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        path = Rails.root.join("config/database_geo.yml")
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        return {} unless File.exist?(path)
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        require "rails/application/dummy_erb_compiler"
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        yaml = DummyERB.new(Pathname.new(path).read).result
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        config = YAML.load(yaml) || {} # rubocop:disable Security/YAMLLoad
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        config.to_h do |env, configs|
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          # This check is taken from Rails where the transformation
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          # of a flat database.yml is done into `primary:`
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          # https://github.com/rails/rails/blob/v6.1.4/activerecord/lib/active_record/database_configurations.rb#L169
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          if configs.is_a?(Hash) && !configs.all? { |_, v| v.is_a?(Hash) }
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            configs = { "geo" => configs }
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          end
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          [env, configs]
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        end
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      end
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      def database_configuration
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        @uses_legacy_database_config = false # rubocop:disable Gitlab/ModuleWithInstanceVariables
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        super.to_h do |env, configs|
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          # TODO: To be removed in 15.0. See https://gitlab.com/gitlab-org/gitlab/-/issues/338182
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          # This preload is needed to convert legacy `database.yml`
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          # from `production: adapter: postgresql`
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          # into a `production: main: adapter: postgresql`
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          unless Gitlab::Utils.to_boolean(ENV['SKIP_DATABASE_CONFIG_VALIDATION'], default: false)
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            # This check is taken from Rails where the transformation
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            # of a flat database.yml is done into `primary:`
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            # https://github.com/rails/rails/blob/v6.1.4/activerecord/lib/active_record/database_configurations.rb#L169
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            if configs.is_a?(Hash) && !configs.all? { |_, v| v.is_a?(Hash) }
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              configs = { "main" => configs }
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              @uses_legacy_database_config = true # rubocop:disable Gitlab/ModuleWithInstanceVariables
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            end
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          end
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          if Gitlab.ee?
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            if !configs.key?("geo") && File.exist?(Rails.root.join("config/database_geo.yml"))
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              configs["geo"] = Rails.application.config_for(:database_geo).stringify_keys
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            end
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            if configs.key?("geo")
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              migrations_paths = Array(configs["geo"]["migrations_paths"])
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              migrations_paths << "ee/db/geo/migrate" if migrations_paths.empty?
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              migrations_paths << "ee/db/geo/post_migrate" unless ENV['SKIP_POST_DEPLOYMENT_MIGRATIONS']
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              configs["geo"]["migrations_paths"] = migrations_paths.uniq
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              configs["geo"]["schema_migrations_path"] = "ee/db/geo/schema_migrations" if configs["geo"]["schema_migrations_path"].blank?
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            end
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          end
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          [env, configs]
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        end
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      end
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    end
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  end
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end
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