Gulp bundle only if source files changed -


i'm pretty new gulp, easy one.

i'm trying genereate number of bundles, each of composed of bunch of js/css files (sourced file), want build each bundle if of it's source files changed.

my starting code looks following. need add make work?

gulp.task('bundle', function () {     return gulp         .src(sourcefile)         .pipe(bundle())         .pipe(gulp.dest(builddest))         .pipe(bundle.results({             pathprefix: '/bundlepath/',             dest: manifestdest         })); });

sourcefile:

module.exports = {     bundle: {         "bundle1": {             "scripts": [                 "file1.js",                 "file2.js",                 "file3.js"             ],             "styles": "style1.css"               },         "bundle2": {             "scripts": [                 "file1.js",                 "file4.js"             ],             "styles": [                          "style1.css",                 "style2.css"             ]         }     } }

for example, if file1.js changes, want both bundle1 , bundle2 rebuilt since share file1.js. if file4.js changes, bundle2 should rebuilt.

this process kicked off when release version of project built in vs2012.

i looked alternative packages gulp-changed, seem work single files (correct me if i'm wrong).


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