I'm not even sure if what I'm trying to achieve is possible with the currently available set of tools (and my limited JavaScript knowledge). I believe what I'm trying to achieve is a pretty common scenario, but I haven't been able to find the information I've been looking for.

Consider the following diagram:

The lines indicate depedencies. For shared modules, such as Module-v and Module-y, I don't want the scripts to be duplicated by being included in each of their respective bundles.

I know that using Browserify I can manually ignore or exclude modules, which is fine when the project is young - but as the project grows managing which dependencies need to be included where is going to become very cumbersome.

A similar Q&A here I think has the same essence of what I'm trying to ask, but to me, it isn't quite clear. It also references gulp-browserify which has since been blacklisted.

In my diagram, I can see that I have three Browserify entry points, but my lack of Gulp/Node/Browserify experience means I'm struggling to wrap my head around how I can try to achieve what I want to.

I'm happy to do the work to try and piece it together, as I already have been trying - however project managers are breathing down my neck so I'm having to hack together a temporary "solution" until I can implement something a little more automated and robust.

Thanks in advance.

Edit

It seems from Browserify's plugin documentation that this might be able to be achieved by using factor-bundle which substack pointed out to me; however again due to my lack of Node/Browserify/Gulp experience I am struggling to pull all the pieces together.

Related Questions

• How can I use factor-bundle with browserify programmatically?

Figured it out, sharing the learns:

Code example:

var gulp = require('gulp'),
    source = require('vinyl-source-stream'),
    browserify = require('browserify'),
    factor = require('factor-bundle');

gulp.task('browserify', function(){

    return browserify({
        entries: ['blog.js', 'page.js']
    })
    .plugin(factor, {
        // File output order must match entry order
        o: ['bundle/blog.js', 'bundle/page.js']
    })
    .bundle({
        debug: true
    })
    .pipe(source('common.js'))
    .pipe(gulp.dest('bundle/'));

});

The key difference between this output and the diagram, is that the common.js file is automatically generated based on common depenedencies between blog.js and page.js. This is described in the factor-bundle documentation.

Notes:

• I found that Node would throw an error if the output files didn't already exist. I'm unsure why as I would have assumed that factor-bundle would simply write a stream to the outputting file regardless of whether it was there or not. As a workaround, after 'cleaning' the output directory, I simply created 'placeholder' files to keep it happy.

• I haven't figured out how to access the factor-bundle stream event when using it as a browserify plugin (it may not even be possible), so any further work on the output files (such as uglifying etc) would likely need to be done somewhere else in the pipeline, possibly with another browserify plugin, or even after the fact.

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