assets-combiner

v2.2.2

Published

3 years ago

A simple tool for merging your source files into one file

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Assets Combiner

A simple tool for merging your source files into one file

Install

npm install assets-combiner -g

Usage

node assets-combiner ./path/to/my-config.json

If you have configuration file in your working directory and it is called assets-combiner.json you can execute assets-combiner without parameters

node assets-combiner

Example of configuration file

{
  "sourceDir": "src/js",
  "outputFile": "dist/compiled.js",
  "include": [
    "*.js"
  ],
  "exclude": [
    "*.test.js"
  ],
  "variables": {
    "name": "Test JS combining"
  }
}

Multiple configurations:

[
  {
    "sourceDir": "src/js",
    "outputFile": "dist/compiled.js",
    "include": [
      "*.js"
    ]
  },
  {
    "sourceDir": "src/css",
    "outputFile": "dist/compiled.css",
    "include": [
      "*.css"
    ]
  }
]

Multiple configurations with shared variables:

{
  "collections": [
    {
      "sourceDir": "src/js",
      "outputFile": "dist/compiled.js",
      "variables": {
        "title": "override shared variable"
      }
    },
    ...
  ]
  "variables": {
    "name": "Test JS combining",
    "title": "test title"
  }
}

To combine only one configuration from multiple configurations use flag -i INDEX_OF_CONFIGURATION. Example:

node assets-combiner multi-config.json -i 1

sourceDir - relative or absolute path to a sources folder.

outputFile - relative or absolute path to an output file. If this parameter are missing result will be printed to a console.

include - array of filename patterns what can be merged.

exclude - array of filename patterns what not be merged.

variables - array of variables. Those variables can be included in output file with the following tag: {combiner:my_variable_name}

Including order

All sources including recursively. Files first, sub-folders second. For example the following files structure:

src
├── sub_dir
│   └── file_2.js
└── file_1.js

Will be merged with this order:

file_1.js
file_2.js

combiner.json file

combiner.json is an optional, config file witch can be placed in any sources directory.

combiner.json provides you options to define merging order, including files witch not allowed by include parameter and exclude allowed files.

Basic combiner.json structure

{
    "order": [],
    "excluded": [],
    "allowed": []
}

order

Example files structure:

src
├── sub_dir
│   └── combine.json
│   └── file_2.js
│   └── file_3.js
│   └── file_4.js
│   └── file_5.js
└── file_1.js

Example order of src/sub_dir/combine.json:

{
    "includingOrder": [
        "file_4.js",
        "file_3.js"
    ]
}

Files will be merged with following order:

file_1.js
file_4.js
file_3.js
file_2.js
file_5.js

By default sub-directories includes after files. We can use order to include directory first, like this:

{
    "includingOrder": [
        "my_sub_directory"
    ]
}

excluded

Files or folders witch will not be included in output file even though these allowed by include parameter.

allowed

Files witch will be included in output file even though these is not allowed by include parameter.

layout

If this property isset all files content will be inserted into layout file. Layout file should contain a {combiner:layout} tag. It will be replaced with merged content from other files.

It can be useful if you need, for example, embed some HTML inside certain part of other HTML.

Example:

Files structure

src
└── combine.json
└── index.html
└── embed.html

index.html

<html>
    <head>
        <title>Layout</title>
    </head>
    <body>
        {combiner:layout}
    </body>
</html>

embed.html

<div>
    <h1>Embed</h1>
</div>

combine.json

{
    "layout": "index.html"
}

Output:

<html>
    <head>
        <title>Layout</title>
    </head>
    <body>
        <div>
            <h1>Embed</h1>
        </div>
    </body>
</html>