JarCastinggulp-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