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grunt-aem-clientlib-generator

A Grunt plugin wrapper for aem-clientlib-generator.

Installation

npm install grunt-aem-clientlib-generator

Once the plugin has been installed, it may be enabled inside your Gruntfile with this line of JavaScript:

grunt.loadNpmTasks("grunt-aem-clientlib-generator");

Usage

Define clientlib property in your grunt configuration file:

grunt.initConfig({

  clientlib: {

    // define options globally (used for all targets)
    options: {
      clientLibRoot: "./test/result/clientlibs-root", // clientlib root path
      cwd: "./test/src/frontend",
      "serializationFormat": "json" // use json or xml as output format
    },

    // target key will be used as clientlib name
    "test.base.apps.mainapp": {

      // collect all JS files within js directory
      "js": {
        flatten: false, // keep source directory structure
        cwd: "./test/src/frontend/js",

        // Important: the order defines how AEM merges/bundles the JavaScript files.
        // This is important for dependencies within JavaScript files
        src: [
          "**/*.js",  // find all JavaScript files
          "!app.js",  // exclude app.js because
          "app.js"    // it should be at the end (in the clientlib bundle process)
        ]
      },

      // create clientLibs in /apps/myapp/clientlibs and allow proxy to /etc.clientlibs/myapp
      "allowProxy": true,

      // allow URL Fingerprinting via placeholder
      "longCacheKey": "${project.version}-${buildNumber}",

      // collect all CSS files within css directory
      // Important: use globbing only if the files haven't any dependencies to
      // each other. The order can be different between Unix and Windows systems.
      "css": "css/**/*.css"
    },

    "test.base.apps.secondapp": {
      options: {
        cwd: "./test/src/frontend/secondapp"  // will override the global `cwd`
      },
      "embed": [
        "test.base.apps.thirdapp"   // this clientlib will be auto embedded in AEM (kind of `merging`)
      ],
      "dependencies": [
        "test.base.apps.mainapp"    // define clientlib dependency
      ],
      "cssProcessor": ["default:none", "min:none"], // disable minification for CSS
      "jsProcessor": ["default:none", "min:gcc;compilationLevel=whitespace"], // using google closure compiler instead of YUI for minification
  
      // example for copy & rename (for a single file)
      "js": {

        // source to be copied
        src: "js/lib.js",

        // renames lib.js to secondapp-lib.js
        rename: "secondapp-lib.js"
      },

      "css": {
        base: "style",    // change base dir from `css` (default) to `style` within the client lib folder
        src: "main.css"
      },
      "resources": {
        cwd: "./test/src/frontend/",
        base: ".",      // using root from this clientlib
        flatten: false, // and keep directory structure from src
        src: [
          "resources/**",
          "!resources/**/*.txt"
        ]
      }
    },
    "test.base.apps.thirdapp": {

      // keep in mind we are using `cwd` from options
      resources: {
        base: ".",      // use the clientlib subfolder instead of the default `resources` directory
        flatten: false, // keep the original folder structure from src
        src: [
          "resources/**/*.txt"
        ]
      }
    },
    "test.base.apps.serializationFormatXML": {
      options: {
        cwd: "./test/src/frontend/secondapp"
      },
      "serializationFormat": "xml", // can be set on individual ClientLibs or globally in clientlib.options
      "categories": [
        "test.base.apps.six",
        "test.categorie.in.config"
      ],
      "embed": [
        "test.base.apps.thirdapp"   // this clientlib will be auto embedded in AEM (kind of `merging`)
      ],
      "dependencies": "test.base.apps.mainapp",
      "js": {
        "src": "js/lib.js",
        "rename": "secondapp-lib.js"
      },
      "css": {
        base: "style", // changes the `base` from `css` (default) to `style`
        src: "main.css"
      },
      "resources": {
        cwd: "./test/src/frontend/",
        base: ".",      // using root from this clientlib
        flatten: false, // and keep directory structure from src
        src: [
          "resources/**",
          "!resources/**/*.txt"
        ]
      }
    }
  }
});

Options

Options can be defined globally and for every task separately. The special file pattern properties can also be defined for assets.

Global Options

Global options will be used for all defined tasks and asset configurations until the property will be overridden.

  • options {Object} global configuration properties
    • clientLibRoot {String} Clientlib root path for all clientlibs
    • cwd {String} directory all paths start with; paths are stripped from the beginning
    • expand {Boolean} using glob pattern for file searching (default: true)
    • flatten {Boolean} removes the path component from source, keep the filename (default: true)
    • filter {String|Function} if string it must be a valid fs.Stats method or a function that is passed the matched src filepath (default: isFile)
    • serializationFormat {String} Format of clientLib definition, either xml or json, default json
clientlib: {

  // define options globally (used for all targets)
  options: {
    clientLibRoot: "./test/result/clientlibs-root", // clientlib root path
    cwd: "./test/src/frontend"
  },

  // task definitions follow.
}

Task Options

Task options defines properties for a specific clientlib and will override properties from global options. cwd, expand and flatten will also be used for all asset configurations.

  • options {Object} task configuration properties
    • path {String} Clientlib root path (optional if options.clientLibRoot is set)
    • cwd {String} directory all paths start with; paths are stripped from the beginning
    • expand {Boolean} using glob pattern for file searching (default: true)
    • flatten {Boolean} removes the path component from source, keep the filename
    • filter {String|Function} if string it must be a valid fs.Stats method or a function that is passed the matched src filepath (default: isFile)
clientlib: {

  "clientlib.name": {
    options: {
      clientLibRoot: "./test/result/clientlibs-root", // clientlib root path
      cwd: "./test/src/frontend"
    },

    // asset configuration follows
    js: { },
    ...
  }
}

ClientLib Configuration

A ClientLib can be configured for each task with the following properties:

  • embed {Array<String>} array of ClientLib names that should be embedded by AEM (optional)
  • dependencies {Array<String>} array of other ClientLib names that should be included by AEM (optional)
  • cssProcessor {Array<String>} array of configuration properties for the ClientLib CSS processor, requires AEM 6.2 (optional)
  • jsProcessor {Array<String>} array of configuration properties for the ClientLib JS processor, requires AEM 6.2 (optional)
  • allowProxy {Boolean} allow for Clientlib creation under /apps/myapp/clientLibs but enable proxy to /etc.clientlibs/myapp/clientlibs/mylib See AEM 6.3 Documentation
  • longCacheKey {String} optional string with placeholders to use with URL Fingerprinting, eq. "${project.version}-${buildNumber}"
  • serializationFormat {String} Format of clientLib definition, either xml or json, default json
  • js|css|resources {Object} asset configuration properties
  • cwd {String} directory all paths start with; paths are stripped from the beginning
  • expand {Boolean} using glob pattern for file searching (default: true)
  • flatten {Boolean} removes the path component from source, keep the filename
  • filter {String|Function} if string it must be a valid fs.Stats method or a function that is passed the matched src filepath (default: isFile)
  • base {String} subpath under clientlib folder where the assets should be copied to (default: asset key, e.g. for asset configuration "js" is the base folder "js/"; use "." to copy files into the clientlib base)
  • src {String|Array<String>} globbing patterns for filename expansion
  • rename {String|Function}
    • if a string is defined, a single src will be renamed (ensure that src is a string)
    • if a function is specified it will be used for building the destination path for every source path Important: Keep in mind that the destination path will be used as a relative path to the clientlib base folder.
clientlib: {

  "your.clientlib.name": {
    
    "embed": ["other.clientlib.name"], // AEM embeds this ClientLib
    "jsProcessor": ["default:none", "min:gcc;compilationLevel=whitespace"], // change the processor for JS minification in AEM

    // asset configuration
    "js": {
      flatten: false,                 // keep folder structure
      cwd: "./test/src/frontend/js",  // choose another directory
      src: [
        "**/*.js"
      ]
    },
    ...
  }
}