I have a gulp task that I would like to run on multiple sets of files. My problem is pretty much similar to what is described here except that I define my sets of files in an extra config.
What I've come up with so far looks like the following:
config.json
{
"files": {
"mainScript": [
"mainFileA.js",
"mainFileB.js"
],
"extraAdminScript": [
"extraFileA.js",
"extraFileB.js"
]
}
}
gulpfile.js
var config = require ('./config.json');
...
gulp.task('scripts', function() {
var features = [],
dest = (argv.production ? config.basePath.compile : config.basePath.build) + '/scripts/';
for(var feature in config.files) {
if(config.files.hasOwnProperty(feature)) {
features.push(gulp.src(config.files[feature])
.pipe(plumper({
errorHandler: onError
}))
.pipe(jshint(config.jshintOptions))
.pipe(jshint.reporter('jshint-stylish'))
.pipe(sourcemaps.init())
.pipe(concat(feature + '.js'))
.pipe(gulpif(argv.production, uglify()))
.pipe(sourcemaps.write('.'))
.pipe(gulp.dest(dest))
);
}
}
return mergeStream(features);
});
My problem is that this doesn't seem to work. The streams are not combine or at least nothing really happens. Some while ago others ran into a similar problem, see here, but even though it should have been fixed it's not working for me.
By the way I've also tested merging the streams in this way:
return es.merge(features)
return es.merge.apply(null, features)
And if I just run the task on a single set of files it works fine.
Motivation
The reason why I want to do this is that at some point concatenating and minifying ALL scripts into one final file doesn't make sense when the sheer number of files is too large. Also, sometimes there is no need to load everything at once. For example all scripts related to an admin interface doesn't need to be load by every visitor.
