Spawn with Sudo Permissions?

[FireController1847]

At the moment, I require and run the module like so:

const git = require('simple-git/promise')(dir);

And I have another user on my system who uses the interchangeable dir variable. Issue is, my user doesn't have access to the other user, but sudo does. So how would I require git via sudo without launching the process under sudo?

[steveukx]

This isn't something that I've looked into before. There are a few libraries on NPM that appear to manage running processes with different permissions (sudo or president) that may be of use.

The simple-git library uses ChildProcess.spawn to create the child processes that git runs in, and has the ChildProcess class passed in to it to make it easier to test. It wouldn't be the supported way to do this, but you could try using the regular version (ie: not /promise) and replace it's this.ChildProcess with some other object that spawns an elevated privileges process... for example

const Git = require('simple-git');
const git = Git();
git.ChildProcess = {
  spawn: (command, params, config) => {
    // launch elevated child process here
  }
};

git.log((err, data) => { ... });

If you are able to make that work, let me know and I'll make a supported API for modifying the way to launch child processes so it can work with the Promises version too.

[lashower]

I found a need for this, but will need help on the promise version.

Here is a way to apply it when calling just simple-git

const git = require('simple-git')('/RetroPie-Setup');

git.ChildProcess.spawn = (function() {
    var cached_spawn = require('child_process').spawn;
    return function() {
		var args = ['sudo',[arguments['0']]];
		var keys = Object.keys(arguments);
		if(keys.length >= 2 && arguments['1'].length != null)
		{
			args[1] = args[1].concat(arguments['1'])
		}
		if(keys.length >= 3)
		{
			args.push(arguments['2']);
		}
        var result = cached_spawn.apply(this, args);
        return result;
    };
})();

var test = git.pull();