Defect #35435
Updated by Go MAEDA almost 3 years ago
see for details https://github.com/ruby/psych/pull/487 https://github.com/rails/rails/commit/1e56b1d1152e8ab74203db30625116844614cc78 patch <pre><code class="diff"> <pre> diff --git a/Gemfile b/Gemfile index b83cd2215..8f6bbe946 100644 --- a/Gemfile +++ b/Gemfile @@ -52,7 +52,8 @@ require 'erb' require 'yaml' database_file = File.join(File.dirname(__FILE__), "config/database.yml") if File.exist?(database_file) - database_config = YAML::load(ERB.new(IO.read(database_file)).result) + yaml_config = ERB.new(IO.read(database_file)).result + database_config = YAML.respond_to?(:unsafe_load) ? YAML.unsafe_load(yaml_config) : YAML.load(yaml_config) adapters = database_config.values.map {|c| c['adapter']}.compact.uniq if adapters.any? adapters.each do |adapter| </code></pre> </pre> without this change, Psych 4 will break aliases in config/database.yml <pre> production: &alias adapter: mysql2 database: xxx development: *alias </pre> error <pre> Cannot load database configuration: (Psych::BadAlias) Unknown alias: alias </pre>