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Versions: 9
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Contents
# Volay module
module Volay
# Config class
class Config
attr_reader :logger, :mixer, :options
##
# Get option
#
# @return [Mixed]
#
def self.init_config
File.write(config_file, '') unless File.exist?(config_file)
logger.level = get(:log_level)
end
##
# Get option
#
# @return [Mixed]
#
def self.get(option)
@options ||= {}
@options[option.to_sym] if @options.key?(option.to_sym)
end
##
# Set option
#
# @param [String|Symbol] option Option key
# @param [Mixed] value Option value
#
def self.set(option, value)
@options ||= {}
@options[option.to_sym] = value
end
##
# Get config file
#
# @return [String]
#
def self.config_file
File.expand_path('~/.volay')
end
##
# Get logger
#
# @return [Logger]
#
def self.logger
@logger ||= Logger.new(STDOUT)
end
##
# Initialize mixer for controlling volume
#
def self.mixer
@mixer ||= begin
if which('amixer')
Volay::Mixer::Alsa.new
else
fail MixerNotFound
end
end
end
##
# Cross-platform way of finding an executable in the $PATH.
#
# Example:
# which('ruby') #=> /usr/bin/ruby
# which('foo') #=> nil
#
# @param [String] cmd Which command
# @return [String|NilClass]
#
def self.which(cmd)
exts = ENV['PATHEXT'] ? ENV['PATHEXT'].split(';') : ['']
ENV['PATH'].split(File::PATH_SEPARATOR).each do |path|
exts.each do |ext|
exe = File.join(path, "#{cmd}#{ext}")
return exe if File.executable?(exe) && !File.directory?(exe)
end
end
nil
end
end
end
Version data entries
9 entries across 9 versions & 1 rubygems