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Synchronizes JSON translation files for angular-translate during development by moving new keys to out-of-date files.
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README.md

grunt-translate-sync

Synchronizes JSON translation files for angular-translate during development by moving new keys to out-of-date files.

Build Status

Useful for libraries like angular-translate, where translation info is kept in multiple JSON files with identical keys.

Getting Started

This plugin requires Grunt ~0.4.2

If you haven't used Grunt before, be sure to check out the Getting Started guide, as it explains how to create a Gruntfile as well as install and use Grunt plugins. Once you're familiar with that process, you may install this plugin with this command:

npm install grunt-translate-sync --save-dev

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

grunt.loadNpmTasks('grunt-translate-sync');

The "translate_sync" task

Overview

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

grunt.initConfig({
  translate_sync: {
    options: {
      keepKeyOrder: Boolean,
      indent: String or Number,
      warnOnIdenticalValues: Boolean
    },
    source: String,
    targets: [String]
  },
});

Options

options.keepKeyOrder

Type: String Default value: true

A boolean value that indicates if the keys in the target files should appear in the same order as in the source file.

options.indent

Type: String or Number Default value: 2

A string or numeric value that is passed to JSON.stringify as the space parameter when writing the target files. Setting it to null will remove pretty-printing, anything else will pretty-pring the JSON as outlined in the JSON.stringify documentation

options.warnOnIdenticalValues

Type: boolean Default value: true

Usually, different files will hold identical keys with different values. If this option is switched on, the task will report keys where the source and the target values are equal. This happens when a key has not yet been translated into the target language.

source

Type: String Default value: null

Required value of the path to the source file. All key-value pairs in this file will be added to all target files unless they are already present there. Must be valid JSON.

targets

Type: [String] Default value: []

Required array of target files that should be updated with the keys from the source file. Must not be empty. All files must be valid JSON.

Usage Example

Default Options

In this example, a source file called tmp/enUS.json will be used to update the key-value pairs in tmp/frFR.json and tmp/deDE.json.

grunt.initConfig({
  translate_sync: {
    source: "tmp/enUS.json",
    targets: ["tmp/frFR.json", "tmp/deDE.json"]
  },
});

Custom Options

In this example, a source file called tmp/enUS.json will be used to update the key-value pairs in tmp/frFR and tmp/deDE, keeping the key order in the target files as they are (new keys will be added after the last key), and using a tab character for pretty-printing. Warnings about identical values will be supressed.

grunt.initConfig({
  translate_sync: {
    options: {
      keepKeyOrder: false,
      indent: "\t",
      warnOnIdenticalValues: false
    },
    source: "tmp/enUS.json",
    targets: ["tmp/frFR.json", "tmp/deDE.json"]
  },
});

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.

Release History

0.1.0 - Initial Version, keys are added after the last key if not present in target files

0.2.0 - keepKeyOrder option introduced, testing refined for both cases

0.2.1 - added travis integration

0.3.0 - added namespace compatibility, fixes arvidkahl/grunt-translate-sync#1

0.3.1 - fixed behavior with empty string values, fixed issues with invalid JSON in the source/target files and added the warnOnIdenticalValues option. refactored the comparison function to be readable

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