diff options
Diffstat (limited to 'lib/gitlab/patch/database_config.rb')
| -rw-r--r-- | lib/gitlab/patch/database_config.rb | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/lib/gitlab/patch/database_config.rb b/lib/gitlab/patch/database_config.rb new file mode 100644 index 00000000000..702e8d404b1 --- /dev/null +++ b/lib/gitlab/patch/database_config.rb @@ -0,0 +1,111 @@ +# frozen_string_literal: true + +# The purpose of this code is to transform legacy `database.yml` +# into a `database.yml` containing `main:` as a name of a first database +# +# This should be removed once all places using legacy `database.yml` +# are fixed. The likely moment to remove this check is the %14.0. +# +# This converts the following syntax: +# +# production: +# adapter: postgresql +# database: gitlabhq_production +# username: git +# password: "secure password" +# host: localhost +# +# Into: +# +# production: +# main: +# adapter: postgresql +# database: gitlabhq_production +# username: git +# password: "secure password" +# host: localhost +# + +module Gitlab + module Patch + module DatabaseConfig + extend ActiveSupport::Concern + + prepended do + attr_reader :uses_legacy_database_config + end + + def load_database_yaml + return super unless Gitlab.ee? + + super.deep_merge(load_geo_database_yaml) + end + + # This method is taken from Rails to load a database YAML file without + # evaluating ERB. This allows us to create the rake tasks for the Geo + # tracking database without filling in the configuration values or + # loading the environment. To be removed when we start configure Geo + # tracking database in database.yml instead of custom database_geo.yml + # + # https://github.com/rails/rails/blob/v6.1.4/railties/lib/rails/application/configuration.rb#L255 + def load_geo_database_yaml + path = Rails.root.join("config/database_geo.yml") + return {} unless File.exist?(path) + + require "rails/application/dummy_erb_compiler" + + yaml = DummyERB.new(Pathname.new(path).read).result + config = YAML.load(yaml) || {} # rubocop:disable Security/YAMLLoad + + config.to_h do |env, configs| + # This check is taken from Rails where the transformation + # of a flat database.yml is done into `primary:` + # https://github.com/rails/rails/blob/v6.1.4/activerecord/lib/active_record/database_configurations.rb#L169 + if configs.is_a?(Hash) && !configs.all? { |_, v| v.is_a?(Hash) } + configs = { "geo" => configs } + end + + [env, configs] + end + end + + def database_configuration + @uses_legacy_database_config = false # rubocop:disable Gitlab/ModuleWithInstanceVariables + + super.to_h do |env, configs| + # TODO: To be removed in 15.0. See https://gitlab.com/gitlab-org/gitlab/-/issues/338182 + # This preload is needed to convert legacy `database.yml` + # from `production: adapter: postgresql` + # into a `production: main: adapter: postgresql` + unless Gitlab::Utils.to_boolean(ENV['SKIP_DATABASE_CONFIG_VALIDATION'], default: false) + # This check is taken from Rails where the transformation + # of a flat database.yml is done into `primary:` + # https://github.com/rails/rails/blob/v6.1.4/activerecord/lib/active_record/database_configurations.rb#L169 + if configs.is_a?(Hash) && !configs.all? { |_, v| v.is_a?(Hash) } + configs = { "main" => configs } + + @uses_legacy_database_config = true # rubocop:disable Gitlab/ModuleWithInstanceVariables + end + end + + if Gitlab.ee? + if !configs.key?("geo") && File.exist?(Rails.root.join("config/database_geo.yml")) + configs["geo"] = Rails.application.config_for(:database_geo).stringify_keys + end + + if configs.key?("geo") + migrations_paths = Array(configs["geo"]["migrations_paths"]) + migrations_paths << "ee/db/geo/migrate" if migrations_paths.empty? + migrations_paths << "ee/db/geo/post_migrate" unless ENV['SKIP_POST_DEPLOYMENT_MIGRATIONS'] + + configs["geo"]["migrations_paths"] = migrations_paths.uniq + configs["geo"]["schema_migrations_path"] = "ee/db/geo/schema_migrations" if configs["geo"]["schema_migrations_path"].blank? + end + end + + [env, configs] + end + end + end + end +end |