Ruby Language OptionParser Default values
Example
With OptionsParser, it's really easy to set up default values. Just pre-populate the hash you store the options in:
options = {
:directory => ENV['HOME']
}
When you define the parser, it will overwrite the default if a user provide a value:
OptionParser.new do |opts|
opts.on("-d", "--directory HOME", "Directory to use") do |d|
options[:directory] = d
end
end
