inspec/lib/utils/command_wrapper.rb
2016-04-18 11:48:42 -04:00

32 lines
888 B
Ruby

# encoding: utf-8
# author: Dominik Richter
# author: Christoph Hartmann
require 'shellwords'
class CommandWrapper
UNIX_SHELLS = %w{sh bash zsh}.freeze
def self.wrap(cmd, options)
unless options.is_a?(Hash)
fail 'All options for the command wrapper must be provided as a hash. '\
"You entered: #{options.inspect}. Please consult the documentation."
end
wrap = options[:wrap]
if !wrap.nil? && !wrap.is_a?(Proc)
fail "Called command wrapper with wrap: #{wrap.inspect}. It must be called with a Proc."
elsif !wrap.nil?
return wrap.call(cmd)
end
shell = options[:shell]
unless UNIX_SHELLS.include?(shell)
fail "Don't know how to wrap commands for shell: #{shell.inspect}."
end
path = options[:path] || shell
args = options[:args] || '-c'
path.to_s + ' ' + args + ' ' + Shellwords.escape(cmd)
end
end