Get an array of file names without extensions from a directory in Gulp? - npm

Question

I want to get each of the file names in 2 directories (helpers/ and dialogs/) into an array without the file extension using Gulp and/or NPM. Note that the array will be pre-populated with values - I need to append the file names to this array.
In other words, my directory structure is like this:
helpers/
a.js
b.js
c.js
dialogs/
x.js
y.js
z.js
I have this:
var modules = ['main-module'];
And I need to populate my array like this based on the directories:
var modules = ['main-module', 'a', 'b', 'c', 'x', 'y', 'z'];
How do I do that?
I have tried using the fs module fs.readdirSync along with gulp-rename, but it would be nice to get this task done in a single streamed operation, if possible.
It would also be useful to get each directory into its own array for other operations - in other words, output a combined array and 2 individual arrays (total of 3 arrays) based on the directories.
var modules = ['main-module', 'a', 'b', 'c', 'x', 'y', 'z'];
var helpers = ['a', 'b', 'c'];
var dialogs = ['x', 'y', 'z'];

Answer 1

You can do it easily with glob, here is a code doing what you want.
var glob = require('glob');
var path = require('path');
var modules = ['main-module'];
var helpers = [];
var dialogs = [];
glob.sync("#(helpers|dialogs)/*.js")
.forEach(function(file) {
var module = path.basename(file, path.extname(file))
modules.push(module);
switch(path.dirname(file)) {
case 'helpers':
helpers.push(module);
break;
case 'dialogs':
dialogs.push(module);
break;
}
});