extra

extra
=====

parse extra arguments to a command after "--"


Ever want to create a command that spawned another command, and let the user pass
arguments and environment variables to it?

extra modifies process.argv and parses out command/arguments/etc passed after
-- in the argument list, which enables you to spawn a separate command with the
result, and still use commander.js
or other "strict" argument checking libraries which would normally complain about
unknown arguments.

$3

``js
var extra = require('extra')
, cmd = require('commander')
, spawn = require('child_process').spawn

var e = extra();
cmd.parse(process.argv);
if (cmd.args[0] === 'spawn') {
spawn(e.cmd, e.args, {env: e.env});
}
`

$3

Use extra() to spawn an arbitrary command with user-specified options.

`js
#!/usr/bin/env node
var extra = require('extra')
, program = require('commander')
, spawn = require('child_process').spawn

var e = extra();

program
.command('spawn')
.usage('[options] -- [cmd_options] [cmd_args...]')
.option('--fork', 'fork the process and exit')
.action(function (cmd) {
var proc = spawn(e.cmd, e.args, {env: e.env});
if (cmd.fork) {
process.exit();
}
proc.stdout.pipe(process.stdout);
proc.stderr.pipe(process.stderr);
process.on('exit', function () {
proc.kill();
});
})

program.parse(process.argv);

if (!program.args.length) program.outputHelp();
``

- - -

$3

Terra Eclipse, Inc. is a nationally recognized political technology and
strategy firm located in Aptos, CA and Washington, D.C.

- - -

$3

- Copyright (C) 2013 Carlos Rodriguez (http://s8f.org/)
- Copyright (C) 2013 Terra Eclipse, Inc. (http://www.terraeclipse.com/)

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of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
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The above copyright notice and this permission notice shall be included in
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