gulp-clone

Duplicate files in memory.

Install

Install with npm.

npm install --save-dev gulp-clone

Changelog

• 2.0.0: Possible Breaking change - The dependency from gutil has been dropped, this has been reported to cause a breaking change in some circumstances. Please continue to use the 1.0 branch if that would cause problems in your setup.
• 1.0.0: Breaking change - There is a new operating mode, as explained in the 1st example. The old operating mode is still available under the clone.sink() property.

Example

gulp-clone is useful in all those situations where you perform a destructive operation on your files (as for example concat) and you want to keep your original files for further processing or saving.

var gulp = require('gulp');
var concat = require('gulp-concat');
var clone = require('gulp-clone');
var es = require('event-stream');
 
gulp.task('default', function () {
    var scripts = gulp.src('assets/**/*.js');
 
    var bundle = scripts.pipe(clone())
      .pipe(concat('bundle.js'));
 
    // Merge the streams together, then write them to the out folder
    return es.merge(scripts, bundle).pipe(gulp.dest('out'));
});

Example - Bypass mode

var gulp = require('gulp');
var concat = require('gulp-concat');
var clone = require('gulp-clone');
 
var cloneSink = clone.sink();
 
gulp.task('default', function () {
  gulp.src('assets/**/*.js')
    .pipe(cloneSink)                //<- clone objects streaming through this point
    .pipe(concat("bundle.js"))
    .pipe(cloneSink.tap())          //<- output cloned objects + bundle.js
    .pipe(gulp.dest('out/'));       //<- saves bundle.js + original files in one pass
});

License

MIT @ Mario Casciaro