Mix

A Laravel Mix function for WordPress themes.

The mix() function is useful if you want to enable cache busting for your theme asset files (CSS, JavaScript, images, icon sprites). Laravel Mix allows you to create a mix-manifest.json file, which might look like this:

{
    "/css/styles.css": "/css/styles.css?id=6ed48b0b831e80bd7549",
    "/js/scripts.js": "/js/scripts.js?id=1bdd07b944e933aa88aa",
}

The ID parameter is a hash of the file contents that changes every time that you make a change to a file. The mix(), mix_child() and mix_any() functions provided in this package allow you to use these hashed URLs for enqueueing your assets in your WordPress theme.

Installation

You can install the package via Composer:

composer require mindkomm/theme-lib-mix

Usage

The mix() function assumes that you have a mix-manifest.json (generated by the version function of Laravel Mix) in the build folder of your theme.

add_action( 'wp_enqueue_scripts', function() {
    wp_enqueue_style(
        'styles',
        mix( 'build/css/styles.css' )
    );
} );

If the mix function can’t find your asset file in the manifest file, it will return the asset URL through get_theme_file_uri as a fallback.

Functions

Name	Return Type	Summary/Returns
mix()	string	Gets the path to a versioned Mix file in a theme. Returns: The versioned file URL.
mix_child()	string	Gets the path to a versioned Mix file in a child theme. Returns: The versioned file URL.
mix_any()	string	Gets the path to a versioned Mix file outside of your theme folders. Returns: The versioned file URL.

mix()

Gets the path to a versioned Mix file in a theme.

Use this function if you want to load theme dependencies. This function will cache the contents of the manifest files for you.

• If you want to use mix in a child theme, use mix_child().
• If you want to use mix outside of your theme folder, you can use mix_any().

since 1.0.0

mix( string $path, array $args = [] )

Returns: string The versioned file URL.

Name	Type	Description
$path	string	The relative path to the file.
$args	array	Optional. An array of arguments for the function. (bool) $is_child – Whether to check the child directory first. Default false. (string) $manifest_directory – Custom relative path to manifest directory. Default build.

add_action( 'wp_enqueue_scripts', function() {
    wp_enqueue_style(
        'styles',
        mix( 'build/css/styles.css' )
    );
} );

mix_child()

Gets the path to a versioned Mix file in a child theme.

Similar to mix(), but tries to load a file from the child theme first.

since 1.2.0

mix_child( string $path, array $args = [] )

add_action( 'wp_enqueue_scripts', function() {
	wp_enqueue_style(
		'theme-styles-child',
		mix_child( 'build/css/styles-child.css' ),
		[],
		null
	);
} );

mix_any()

Gets the path to a versioned Mix file outside of your theme folders.

The difference to the mix() function is that for this function, you need to provide the absolute paths to the file and the manifest directory. The benefit is that it’s more versatile and that you can use it for functionality that might not live in a theme, but in a plugin, vendor packages or in a symlinked package.

since 1.1.0

mix_any( string $path, string $manifest_directory, string $manifest_name = mix-manifest.json )

Returns: string The versioned file URL.

Name	Type	Description
$path	string	The full path to the file.
$manifest_directory	string	The full path to the manifest directory.
$manifest_name	string	Optional. The name of the manifest file in $manifest_directory. Default mix-manifest.json.

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Support

This is a library that we use at MIND to develop WordPress themes. You’re free to use it, but currently, we don’t provide any support.