Module: Veewee::Provider::Core::Helper::Shell

Included in:
Box, Provider
Defined in:
lib/veewee/provider/core/helper/shell.rb

Instance Method Summary collapse

Instance Method Details

#shell_exec(command, options = {:mute => true,:status => 0,:stderr => "&1"}) ⇒ Object

blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/185404 This should work on windows too now This will result in a ShellResult structure with stdout, stderr and status



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# File 'lib/veewee/provider/core/helper/shell.rb', line 23

def shell_exec(command,options = {:mute => true,:status => 0,:stderr => "&1"})
  defaults={:mute => true, :status => 0}
  options=defaults.merge(options)
  result=ShellResult.new("","",-1)
  ui.info "Executing #{command}" unless options[:mute]
  env.logger.debug "Command: \"#{command}\""
  env.logger.debug "Output:"
  env.logger.debug "-------"
  escaped_command=command
  stderr_redirect = options[:stderr]? options[:stderr] : "&1"
  IO.popen("#{escaped_command}"+ " 2>#{stderr_redirect}") { |p|
    p.each_line{ |l|
      result.stdout+=l
      ui.info(l,{:new_line => false})  unless options[:mute]
      env.logger.debug(l.chomp)
    }
    result.status=Process.waitpid2(p.pid)[1].exitstatus
    if result.status.to_i!=options[:status]
      ui.error "Error: We executed a shell command and the exit status was not #{options[:status]}"
      ui.error "- Command :#{command}."
      ui.error "- Exitcode :#{result.status}."
      ui.error "- Output   :\n#{result.stdout}"
      raise Veewee::Error,"Wrong exit code for command #{command}"
    end
  }
  return result
end