I'm trying to get spawn
to effect an rm -rf node_modules
followed by npm install
(on windows 7; nx commands courtesy of a transparently installed CygWin. All nx commands resolve on a commandline just fine).
I initially had this using exec
, but wanted to catch the stdout/stderr information as it occurred, so I figured I'd use spawn
, and rewrote the code to use that. However, that breaks everything.
The rm
command, rewritten, became this:
var spawn = require("child_process").spawn,
child = spawn("rm", ["-rf", "node_modules"]);
child.stdout.on('data', function (data) { console.log(data.toString()); });
child.stderr.on('data', function (data) { console.log(data.toString()); });
child.on('error', function() { console.log(arguments); });
However, running this generates the following error:
rm: unknown option -- ,
Try `rm --help' for more information.
The npm
command, rewritten, became this:
var spawn = require("child_process").spawn,
child = spawn("npm", ["install"]);
child.stdout.on('data', function (data) { console.log(data.toString()); });
child.stderr.on('data', function (data) { console.log(data.toString()); });
child.on('error', function() { console.log(arguments); });
However, running this generates the following error:
{
'0': {
[Error: spawn ENOENT]
code: 'ENOENT',
errno: 'ENOENT',
syscall: 'spawn'
}
}
How do I make spawn run the same commands that worked fine using exec
without it throwing up errors all over the place? And why does this not work? Reading the API, http://nodejs.org/api/child_process.html#child_process_child_process_spawn_command_args_options, seems to suggest this is precisely how one is supposed to use spawn...