/*!

* Bootstrap Grunt task for Glyphicons data generation
* http://getbootstrap.com
* Copyright 2014 Twitter, Inc.
* Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
*/

‘use strict’; var fs = require(‘fs’);

module.exports = function generateGlyphiconsData(grunt) {

// Pass encoding, utf8, so `readFileSync` will return a string instead of a
// buffer
var glyphiconsFile = fs.readFileSync('less/glyphicons.less', 'utf8');
var glyphiconsLines = glyphiconsFile.split('\n');

// Use any line that starts with ".glyphicon-" and capture the class name
var iconClassName = /^\.(glyphicon-[a-zA-Z0-9-]+)/;
var glyphiconsData = '# This file is generated via Grunt task. **Do not edit directly.**\n' +
                     '# See the \'build-glyphicons-data\' task in Gruntfile.js.\n\n';
var glyphiconsYml = 'docs/_data/glyphicons.yml';
for (var i = 0, len = glyphiconsLines.length; i < len; i++) {
  var match = glyphiconsLines[i].match(iconClassName);

  if (match !== null) {
    glyphiconsData += '- ' + match[1] + '\n';
  }
}

// Create the `_data` directory if it doesn't already exist
if (!fs.existsSync('docs/_data')) {
  fs.mkdirSync('docs/_data');
}

try {
  fs.writeFileSync(glyphiconsYml, glyphiconsData);
}
catch (err) {
  grunt.fail.warn(err);
}
grunt.log.writeln('File ' + glyphiconsYml.cyan + ' created.');

};