Provides a manifold for gulp object streams.
Splits a stream into ducts by applying filters, allowing ducts to specify their own piping into the Return. The Return from ducts are then merged with the Bypass for further piping.
The Bypass is comprised of anything that wasn't filtered.
------------
| Stream |
------------
|| FILTERS
------------ || ------------
| Manifold |>===|>===>| Duct |===>|
------------ || ------------ ||
B || || R
Y || ------------ || E
P |>===>| Duct |===>| T
A || ------------ || U
S || || R
S || ------------ || N
|>===>| Duct |===>|
|| ------------ ||
------------ || ||
| Stream |<=MERGE<=================<|
------------
This is useful for applying different processing to subsets of the build, then applying further processing on the
combined results as a whole. I.e., process js/css separately, then write them to disk simultaneously with a single call
to gulp.dest(path).
Example 1:
var gulp = require('gulp'),
manifold = require('gulp-manifold'),
uglify = require('gulp-uglify'),
sass = require('gulp-sass');
gulp.task('default', function () {
return gulp.src('src/**/*')
.pipe(manifold({
'**/*.js': function (ductStream) {
// Note: always return a stream to the Return
return ductStream
.pipe(uglify());
},
'**/*.scss': function (ductStream) {
// Note: always return a stream to the Return
return ductStream
.pipe(sass())
}
}))
.pipe(gulp.dest('dist'));
});Example 2:
var gulp = require('gulp'),
manifold = require('gulp-manifold'),
uglify = require('gulp-uglify'),
sass = require('gulp-sass');
gulp.task('default', function () {
return gulp.src('src/**/*')
.pipe(manifold([
manifold.duct([
'src/**/*.js',
'lib/**/*.js'
], function (ductStream) {
// Note: always return a stream to the Return
return ductStream
.pipe(uglify());
}),
manifold.duct('**/*.scss', function (ductStream) {
// Note: always return a stream to the Return
return ductStream
.pipe(sass())
})
]))
.pipe(gulp.dest('dist'));
});