rollup-stream

    1.24.1 • Public • Published

    rollup-stream npm Dependency Status Build Status

    This is a simple wrapper around Rollup that returns a readable stream instead of a Promise, like Browserify's bundle() method. It's designed to make using Rollup with gulp easier, but if you find another use for it, go ahead!

    The options object is passed to Rollup's rollup() and generate() methods. This currently works because there's no overlap between the names of the options those methods take. Hopefully that won't change any time soon!

    Installation

    npm install --save-dev rollup-stream

    Basic usage

    var gulp = require('gulp'),
        rollup = require('rollup-stream'),
        source = require('vinyl-source-stream');
     
    gulp.task('rollup', function() {
      return rollup({
          input: './src/main.js'
        })
        
        // give the file the name you want to output with.
        .pipe(source('app.js'))
        
        // and output to ./dist/app.js as normal.
        .pipe(gulp.dest('./dist'));
    });

    Usage with sourcemaps

    var gulp = require('gulp'),
        rollup = require('rollup-stream'),
        sourcemaps = require('gulp-sourcemaps'),
    //  rename = require('gulp-rename'),
        source = require('vinyl-source-stream'),
        buffer = require('vinyl-buffer');
     
    gulp.task('rollup', function() {
      return rollup({
          input: './src/main.js',
          sourcemap: true
        })
        
        // point to the entry file.
        .pipe(source('main.js', './src'))
        
        // buffer the output. most gulp plugins, including gulp-sourcemaps, don't support streams.
        .pipe(buffer())
        
        // tell gulp-sourcemaps to load the inline sourcemap produced by rollup-stream.
        .pipe(sourcemaps.init({loadMaps: true}))
            
            // transform the code further here.
            
        // if you want to output with a different name from the input file, use gulp-rename here.
    //  .pipe(rename('index.js'))
        
        // write the sourcemap alongside the output file.
        .pipe(sourcemaps.write('.'))
        
        // and output to ./dist/main.js as normal.
        .pipe(gulp.dest('./dist'));
    });

    Usage with caching

    var gulp = require('gulp'),
        rollup = require('rollup-stream'),
        source = require('vinyl-source-stream');
     
    var cache;
    gulp.task('rollup', function() {
      return rollup({
          input: './src/main.js',
          cache: cache
        })
        
        .on('bundle', function(bundle) {
          cache = bundle;
        })
        
        // after listening for the 'bundle' event, proceed as usual.
        .pipe(source('app.js'))
        .pipe(gulp.dest('./dist'));
    });
     
    gulp.task('watch', function() {
      gulp.watch('./src/**/*.js', ['rollup']);
    });

    Usage with newer, older, or custom Rollup

    var gulp = require('gulp'),
        rollup = require('rollup-stream'),
        source = require('vinyl-source-stream');
     
    gulp.task('rollup', function() {
      return rollup({
          input: './src/main.js',
          rollup: require('rollup')
        })
        
        // after passing options.rollup, proceed as usual.
        .pipe(source('app.js'))
        .pipe(gulp.dest('./dist'));
    });

    Usage with Rollup config file

    var gulp = require('gulp'),
        rollup = require('rollup-stream'),
        source = require('vinyl-source-stream');
     
    gulp.task('rollup', function() {
      return rollup('rollup.config.js')
        .pipe(source('app.js'))
        .pipe(gulp.dest('./dist'));
    });

    Install

    npm i rollup-stream

    DownloadsWeekly Downloads

    1,976

    Version

    1.24.1

    License

    MIT

    Last publish

    Collaborators

    • permutator