gulp browserify reactify task is quite slow

Question

I am using Gulp as my task runner and browserify to bundle my CommonJs modules.

I have noticed that running my browserify task is quite slow, it takes around 2 - 3 seco

Answer 1

You have to use watchify and enable its cache. Take a look at : https://www.codementor.io/reactjs/tutorial/react-js-browserify-workflow-part-2 and for more optimisation when building source-map you could do that :

cd node_modules/browserify && npm i substack/browser-pack#sm-fast this would safe you half of time

part of my gulpfile.js

var gulp = require('gulp');
var uglify = require('gulp-uglify');
var htmlreplace = require('gulp-html-replace');
var source = require('vinyl-source-stream');
var browserify = require('browserify');
var watchify = require('watchify');
var reactify = require('reactify');
var streamify = require('gulp-streamify');

var path = {
    OUT : 'build.js',
    DEST2 : '/home/apache/www-modules/admimail/se/se',
    DEST_BUILD : 'build',
    DEST_DEV : 'dev',
    ENTRY_POINT : './src/js/main.jsx'
};

gulp.task('watch', [], function() {
    var bundler = browserify({
        entries : [ path.ENTRY_POINT ],
        extensions : [ ".js", ".jsx" ],
        transform : [ 'reactify' ],
        debug : true,
        fullPaths : true,
        cache : {}, // <---- here is important things for optimization 
        packageCache : {} // <----  and here
    });
    bundler.plugin(watchify, {
//      delay: 100,
//      ignoreWatch: ['**/node_modules/**'],
//      poll: false
    });

    var rebundle = function() {
        var startDate = new Date();
        console.log('Update start at ' + startDate.toLocaleString());
        return bundler.bundle(function(err, buf){
                if (err){
                    console.log(err.toString());
                } else {
                    console.log(' updated in '+(new Date().getTime() - startDate.getTime())+' ms');
                }
            })
            .pipe(source(path.OUT))
            .pipe(gulp.dest(path.DEST2 + '/' + path.DEST_DEV))
            ;
    };

    bundler.on('update', rebundle);
    return rebundle();
});

gulp.task('default', [ 'watch' ]);