CODEWITHSUNDEEP
javascriptgulp
Martin Bliss
Martin Bliss

Reputation: 1051

How to achieve multiple sources mid-stream in gulp

I have a situation where I need to pull files from numerous folders through a pipeline of tasks ultimately resulting in a single file.

Suppose I have two different types of sources, source type A and B. "A" sources need to be uglified/minified, while B sources do not (they already are.) Ultimately, I want both A and B to be concatenated together. How can this be achieved with gulp and gulp plugins?

var aSources = gulp.src(...)
                   .pipe(uglify());
var bSources = gulp.src(...);

return ?????.pipe(concat(...)).pipe(gulp.dest(...));

I've tried using the event-stream plugin to merge the two streams: this causes the "a" stream to be replayed on the merge, so the result is the a stream in duplicate.

Upvotes: 1

Views: 163

Answers (1)

Nhat Hong Ly
Nhat Hong Ly

Reputation: 628

You can use "merge-stream"

mergeStream([streamA, streamB]).pipe(concat(...))...

Or "gulp-if":

gulp.src([sources])
    .pipe(gulpIf(/[.]js$/, uglify))
    .pipe(concat(...))

Or "gulp-add-src":

gulp.src(source1).pipe(uglify()).pipe(gulAddSrc(source2))

Upvotes: 2

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