CODEWITHSUNDEEP
javascriptnode.jsgulpfs
Naor
Naor

Reputation: 24083

Use node.js stream to create a file and pipe to gulp

I am using node.js. I have a Buffer and I need to write it to a file named 'bla.js' and then pipe gulp's uglify. Something like:

var uglify = require('gulp-uglify');

var buffer = ....
var wstream = fs.createWriteStream('bla.js');
wstream.write(buffer);
wstream.pipe(uglify());

What is the correct way to do it?

Upvotes: 3

Views: 1485

Answers (2)

es128
es128

Reputation: 1047

Looks like the plugin vinyl-source-stream provides a solution for what you want to do:

var source = require('vinyl-source-stream')
var streamify = require('gulp-streamify')
var browserify = require('browserify')
var fs = require('vinyl-fs');
var uglify = require('gulp-uglify');

var bundleStream = browserify('index.js').bundle()

bundleStream
  .pipe(source('index.js'))
  .pipe(streamify(uglify()))
  .pipe(fs.dest('./bla.js'))

Upvotes: 1

Mike Tunnicliffe
Mike Tunnicliffe

Reputation: 10772

From what I can tell you should be able to call pipe() on the readable stream more than once and have the contents sent to two different writable streams.

Eg (dry-coded):

var fs = require('fs')
,   uglify = require('gulp-uglify');

var rstream = fs.createReadStream('test.log');
rstream.pipe(fs.createWriteStream('bla.js'));
rstream.pipe(uglify());

Upvotes: 1

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