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Contents
module Appfuel
module Configuration
# Handle loading files and parsing them correctly based on their type.
# The file loader used for loading configuration data into a definition
module FileLoader
attr_writer :file_module, :json_module, :yaml_module
def file_module
@file_module ||= ::File
end
def json_module
@json_module || ::JSON
end
def yaml_module
@yaml_module ||= YAML
end
# @param path [String]
# @return [Hash]
def parse_json(path)
file = file_module.read(path)
json_module.parse(file)
end
# @param path [String]
# @return [Hash]
def parse_yaml(path)
yaml_module.load_file(path)
end
alias_method :parse_yml, :parse_yaml
# Load file will search through a configuration's definition file
# paths and use the first on that exists. It parse it based on
# the file type.
#
# @raises [RuntimeException] when no files are found
#
# @param definition [DefinitionDsl]
# @return [Hash]
def load_file(definition)
paths = definition.file
paths.each do |path|
ext = file_module.extname(path).strip.downcase[1..-1]
parse_method = "parse_#{ext}"
unless respond_to?(parse_method)
fail "extension (#{ext}), for (#{definition.key}: #{path}) " +
"is not valid, only yaml and json are supported"
end
if file_module.exists?(path)
config = public_send(parse_method, path)
unless config.is_a?(Hash)
fail "[config #{parse_method}] config must be a hash"
end
config.deep_symbolize_keys!
return config[definition.key]
end
end
list = paths.join(',')
fail "none of :#{definition.key} config files exist at (#{list})"
end
end
end
end
Version data entries
9 entries across 9 versions & 1 rubygems