Question

I’m currently setting up a automated build script (with gruntjs) for a require.js driven project . Therefor I would like to run jslint/jshint on all required files before concatenating and minifying it with r.js. Since the js folder contains a lot of development files I don’t want to lint, I can’t just pass js/**/*.js to JSLint. My first thought was to run r.js with optimizer: 'none', lint the concatenated file and then minify it, but this is not an options for two reasons. First it will include vendor libs I don’t want to lint and second finding the line with the error, find it’s class, find the appropriate js-file in the dev folder, fix it there, run r.js again and finally lint it again, is way to much hassle for our workflow. So I’m looking for a possibility to hook up the linting into the r.js optimizer process or at least get a list of the requirejs dependency tree in some way, that I can parse and pass it to lint. Or any solution practicable for an automated process, you’ll come up with.

Answer 1

This answer sort of bypasses Grunt, but it should work for what you want to do. The way I would do it is look at r.js and try to override a function that receives the path to the various modules being loaded, intercept the module name, and lint the files while r.js is loading and compiling the modules. I’ve done it like so:

var requirejs = require('requirejs');
var options = {/*r.js options as JSON*/};
var oldNewContext = requirejs.s.newContext;
requirejs.s.newContext = function(){
    var context = oldNewContext.apply(this, arguments);
    var oldLoad = context.Module.prototype.load;
    context.Module.prototype.load = function(){
        var module = oldLoad.apply(this, arguments);

        if(/\.js$/.test(this.map.url) && !/^empty:/.test(this.map.url))
            console.log(this.map.url);

        return module;
    }
    return context;
}
requirejs.optimize(options)

Then when you run requirejs.optimize on your modules, you should get all the non-empty JavaScript urls logged to the console. Instead of logging them to the console, you could use the urls to lint the files.