A laravel-mix extension that copies files while replacing public urls with their corresponding values from the mix-manifest.json .
latest v1.1.1 - released
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MIT license
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A laravel-mix extension that copies files while replacing public urls with their corresponding values from the mix-manifest.json .


Some times you may want to make some configuration files public ( browsersync.xml, manifest.json ... ), and they might contain urls for other public assets ( images, icons ... ), but the problem is that you'll need to add a hash as a query parameter to these public urls for cache busting purposes ( in blade templates in laravel projects, this is done by using the mix() function ), doing this manually is painful, especially for large configuration files . This is where mix-replacer comes in .


Install this package as a devDependency :

npm --save-dev i mix-replacer


After installing this package and then requiring it from your webpack.mix.js file, a new method called copyAndReplace is gonna be available through the mix api :

// require order doesn't matter here
const mix = require("laravel-mix");

mix.js("resources/js/app.js", "public/js")
	.sass("resources/sass/app.scss", "public/css")
	.copyAndReplace("resources/configFiles/browsersync.xml", "public/configFiles")
	// you can use it with a glob pattern too
	.copyAndReplace("resources/configFiles/*.json", "public/configFiles");
  • The first parameter is either a file path or a glob pattern for source files .
  • The second parameter is the target directory inside the public path that the source files are gonna be copied into . ( it defaults to the public path used by the mix api)

Now to the fun part, all you have to do is to surround you public urls with double brace syntax ( example "{{/public/url/here}}" ), and when you compile your assets using npm run dev or npm run prod the extension is gonna do its magic .


Let's assume this is your webpack.mix.js file :

const mix = require("laravel-mix");

	.copy("resources/assets/compiledByMix.xml", "public")
	.copy("resources/assets/compiledByMix2.json", "public")
	.copy("resources/assets/sub/compiledByMix3.xml", "public")
	.copy("resources/assets/sub/compiledByMix4.json", "public")
	.copyAndReplace("resources/configFiles/src1.xml", "public");

And the content of resources/configFiles/src1.xml is :

<?xml version="1.0" encoding="utf-8"?>
            <square70x70logo src="{{/compiledByMix.xml}}"/>
            <square150x150logo src="{{/sub/compiledByMix3.xml}}"/>
            <square310x310logo src="{{/notCompiledByMix.xml}}"/>

Now after you run npm run prod and the compilation is done, your public directory will contain the 5 files you copied, and the content of public/src1.xml will be :

<?xml version="1.0" encoding="utf-8"?>
            <square70x70logo src="/compiledByMix.xml?id=dea9e98536d837de68fb"/>
            <square150x150logo src="/sub/compiledByMix3.xml?id=839319469771b9c831ed"/>
            <square310x310logo src="/notCompiledByMix.xml"/>

Oh and don't forget about the generated public/mix-manifest.json ;

	"/compiledByMix.xml": "/compiledByMix.xml?id=dea9e98536d837de68fb",
	"/compiledByMix2.json": "/compiledByMix2.json?id=cb5269e255dd5926f863",
	"/sub/compiledByMix3.xml": "/sub/compiledByMix3.xml?id=839319469771b9c831ed",
	"/sub/compiledByMix4.json": "/sub/compiledByMix4.json?id=913e067a162e99e34741",
	"/src1.xml": "/src1.xml?id=ca86c548265ae49236dc"


First of all, install the devDependencies by running npm install .

All tests are using the jasmine testing framework .

Some tests are using random string inputs, so in order to reproduce any failures that could happen while testing the specs, a seeded random number generator is needed ( see what i did there ? :upside_down_face: ), that's where seedrandom comes in, so you'll have to be aware that Math.random() is not the same as the original one .

If you take a peek into the package.json file and go straight for the test script, you'll notice that there's a seed argument wich you can change to seed the random number generator .

And to run the tests you just run npm run test or npx jasmine --seed=your_seed_here with a seed of your choice .


A pull request is welcome any time .


MIT license

MIT license