Sha256: b6463cb228174619decfaf5eaa923fabef8ffe15255dd85d3f9afb6d98e23b60
Contents?: true
Size: 1.29 KB
Versions: 22
Compression:
Stored size: 1.29 KB
Contents
require 'set'
require 'yaml'
require 'erb'
require 'ostruct'
class BigqueryMigration
class ConfigLoader
attr_reader :config_path, :namespace
class AlreayIncluded < ::StandardError; end
def initialize(config_path, vars = {})
@config_path = File.expand_path(config_path)
@included_files = Set.new
@namespace = OpenStruct.new(vars)
unless @namespace.respond_to?(:include_file)
itself = self
# ToDo: better way?
@namespace.define_singleton_method(:include_file) do |path|
caller_path = caller[0][/^([^:]+):\d+:in `[^']*'$/, 1]
abs_path = File.expand_path(path, File.dirname(caller_path))
if File.extname(path) == '.erb'
itself.load_erb(abs_path)
else
File.read(abs_path)
end
end
end
end
def load
if File.extname(config_path) == '.erb'
YAML.load(load_erb(config_path))
else
YAML.load(File.read(config_path))
end
end
def load_erb(path = config_path)
unless @included_files.add?(path)
raise AlreayIncluded, "#{path} was included twice"
end
raw = File.read(path)
erb = ERB.new(raw, nil, "-")
erb.filename = path
erb.result(namespace.instance_eval { binding })
end
end
end
Version data entries
22 entries across 22 versions & 1 rubygems