Revert "remove Glyphicons docs autogeneration from Grunt"

This reverts commit 36b530892600648a6d6a24dd2520f84839cc0ace.
This reverts PR #14065.

Turns out Glyphicons is more active than we'd thought.

1 files changed, 41 insertions, 0 deletions

diff --git a/grunt/bs-glyphicons-data-generator.js b/grunt/bs-glyphicons-data-generator.js
new file mode 100644
index 0000000000..82dc727b6f
--- /dev/null
+++ b/grunt/bs-glyphicons-data-generator.js
@@ -0,0 +1,41 @@
+/*!
+ * 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-[^\s]+)/;
+  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.');
+};