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Contents
# frozen_string_literal: true
module RuboCop
module Cop
# A mixin to extend cops in order to determine the database type.
#
# This module automatically detect an adapter from `development` environment
# in `config/database.yml` or the environment variable `DATABASE_URL`
# when the `Database` option is not set.
module DatabaseTypeResolvable
MYSQL = 'mysql'
POSTGRESQL = 'postgresql'
def database
cop_config['Database'] || database_from_yaml || database_from_env
end
private
def database_from_yaml
return unless database_yaml
case database_adapter
when 'mysql2', 'trilogy'
MYSQL
when 'postgresql', 'postgis'
POSTGRESQL
end
end
def database_from_env
url = ENV['DATABASE_URL'].presence
return unless url
case url
when %r{\A(mysql2|trilogy)://}
MYSQL
when %r{\Apostgres(ql)?://}
POSTGRESQL
end
end
def database_yaml
return unless File.exist?('config/database.yml')
yaml = if YAML.respond_to?(:unsafe_load_file)
YAML.unsafe_load_file('config/database.yml')
else
YAML.load_file('config/database.yml')
end
return unless yaml.is_a? Hash
config = yaml['development']
return unless config.is_a?(Hash)
config
rescue Psych::SyntaxError
# noop
end
def database_adapter
database_yaml['adapter'] || database_yaml.first.last['adapter']
end
end
end
end
Version data entries
12 entries across 12 versions & 4 rubygems