grunt-yaml2properties

A Grunt plugin to convert YAML to .properties using js-yaml.

Getting Started

If you haven't used grunt before, be sure to check out the Getting Started guide.

From the same directory as your project's Gruntfile and package.json, install this plugin with the following command:

npm install grunt-yaml2properties --save-dev

Once that's done, add this line to your project's Gruntfile:

grunt.loadNpmTasks('grunt-yaml2properties');

If the plugin has been installed correctly, running grunt --help at the command line should list the newly-installed plugin's task or tasks. In addition, the plugin should be listed in package.json as a devDependency, which ensures that it will be installed whenever the npm install command is run.

The "yaml2properties" task

Overview

In your project's Gruntfile, add a section named yaml2properties to the data object passed into grunt.initConfig().

grunt.initConfig({
  yaml2properties: {
    your_target: {
      options: {
        ignored: /^_/
      },
      files: [
        {expand: true, cwd: 'yaml_directory/', src: ['**/*.yml'], dest: 'output_directory/'}
      ]
    },
  },
})

In a situation where you do not want to output a file, but want to manipulate the data on your own, you can provide a middleware function and disable the destination write process:

grunt.initConfig({
  yaml2properties: {
    your_target: {
      options: {
        disableDest: true,    // Grunt will not create i18n.properties as per the destination of the files object
        middleware: function(output, properties, src, dest){
          console.log(output);      // the output that is saved in the .properties file
          console.log(properties);  // a list of the single properties
          console.log(src);         // Source file path
          console.log(dest);        // Destination file path
        }
      },
      files: {
        'i18n.properties':    ['i18n.yml']
      }
    },
  },
})

Options

options.ignored

Type: RegExp or String Default value: null

A value that specifies file pattern not to compile.

options.middleware

Type: Function Default value: function(response, json, src, dest) {}

A function which provides you an interface to manipulate the YAML before it becomes JSON, or manipulate the JSON after being stringified.

options.disableDest

Type: Boolean Default value: false

A boolean flag which will prevent grunt-yaml2properties from creating an output file if you would like to just work with the middleware function.

options.strict

Type: Boolean Default value: false

A boolean flag which makes js-yaml to throw errors instead of warnings.

options.readEncoding

Type: String Default value: grunt.file.defaultEncoding

An override to the default buffer encoding used to read in the YAML file (grunt.file.read).

options.writeEncoding

Type: String Default value: grunt.file.defaultEncoding

An override to the default buffer encoding used to write out the JSON file (grunt.file.write).

YAML Usage Examples

See shiwano's schema.

Contributing

In lieu of a formal styleguide, take care to maintain the existing coding style. Add unit tests for any new or changed functionality. Lint and test your code using grunt.

Credits

• grunt-yaml served as the foundation and starting point for this package – I just had to tweak it a little bit to output .properties instead of .json files. So, all kudos belong to Shogo Iwano. ありがとうございました！

License

View the LICENSE file (MIT).