Package Exports
- gulp-filter
This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (gulp-filter) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.
Readme
gulp-filter 
Filter files in a vinyl stream
Enables you to work on a subset of the original files by filtering them using globbing. When you're done and want all the original files back you just call the restore method.
Install
$ npm install --save-dev gulp-filterUsage
Simple
var gulp = require('gulp');
var jscs = require('gulp-jscs');
var gulpFilter = require('gulp-filter');
gulp.task('default', function () {
// create filter instance inside task function
var filter = gulpFilter(['*', '!src/vendor']);
return gulp.src('src/*.js')
// filter a subset of the files
.pipe(filter)
// run them through a plugin
.pipe(jscs())
// bring back the previously filtered out files (optional)
.pipe(filter.restore())
.pipe(gulp.dest('dist'));
});Multiple filters
By combining and restoring different filters you can process different sets of files with a single pipeline.
var gulp = require('gulp');
var less = require('gulp-less');
var concat = require('gulp-concat');
var gulpFilter = require('gulp-filter');
gulp.task('default', function () {
var jsFilter = gulpFilter('**/*.js');
var lessFilter = gulpFilter('**/*.less');
gulp.src('assets/**')
.pipe(jsFilter)
.pipe(concat('bundle.js'))
.pipe(jsFilter.restore())
.pipe(lessFilter)
.pipe(less())
.pipe(lessFilter.restore())
.pipe(gulp.dest('out/'));
});Restore as a file source
You may also want to restore filtered files in a different place and use it as a standalone source of files. The end option allow you to do so.
var gulp = require('gulp');
var jscs = require('gulp-jscs');
var gulpFilter = require('gulp-filter');
gulp.task('default', function () {
var filter = gulpFilter(['*', '!src/vendor']);
gulp.src('src/*.js')
// filter a subset of the files
.pipe(filter)
// run them through a plugin
.pipe(jscs())
.pipe(gulp.dest('dist'));
// use filtered files as a gulp file source
filter.restore({end: true})
.pipe(gulp.dest('vendor-dist'));
});API
filter(pattern, options)
Returns a transform stream with a .restore() method.
pattern
Type: String|Array|Function
Accepts a string/array with globbing patterns which are run through multimatch.
If you supply a function you'll get a vinyl file object as the first argument and you're expected to return true/false whether to include the file:
filter(function (file) {
return /unicorns/.test(file.path);
});options
Type: Object
Accepts minimatch options.
Note: Set dot: true if you need to match files prefixed with a dot (eg. .gitignore).
stream.restore(options)
Brings back the previously filtered out files.
options.end
Type: boolean
Default: false
Set to true if you want restore streams to end when their source stream ends.