Sha256: c69f8c430080dad12c5ec5910af2f933eff62294cfefbc1bfee8d39745481f75
Contents?: true
Size: 1.75 KB
Versions: 7
Compression:
Stored size: 1.75 KB
Contents
require 'mustache'
require 'json'
module Vcloud
module Core
class ConfigLoader
# Loads the configuration from +config_file+, optionally rendering
# +config_file+ as a Mustache template using vars in +vars_file+ and
# optionally validating config against +schema+ supplied.
#
# @param config_file [String] Location of the YAML config file
# @param schema [String, nil] Location of the validation schema
# if nil, no validation takes place.
# @param vars_file [String, nil] Location of the vars_file (YAML),
# if nil, config_file is not rendered
# by Mustache
# @return [Hash]
def load_config(config_file, schema = nil, vars_file = nil)
if vars_file
rendered_config = Mustache.render(
File.read(config_file),
YAML::load_file(vars_file)
)
input_config = YAML::load(rendered_config)
else
input_config = YAML::load_file(config_file)
end
# There is no way in YAML or Ruby to symbolize keys in a hash
json_string = JSON.generate(input_config)
config = JSON.parse(json_string, :symbolize_names => true)
if schema
validation = Core::ConfigValidator.validate(:base, config, schema)
validation.warnings.each do |warning|
Vcloud::Core.logger.warn(warning)
end
unless validation.valid?
validation.errors.each do |error|
Vcloud::Core.logger.fatal(error)
end
raise("Supplied configuration does not match supplied schema")
end
end
config
end
end
end
end
Version data entries
7 entries across 7 versions & 1 rubygems