Merge pull request #13824 from jsdf/node-requirable

Allow npm package to be resolved via node module resolution

Gruntfile.js

@@ -26,6 +26,7 @@ module.exports = function (grunt) {
     return { sections: parser.parseFile() };
   };
   var generateRawFiles = require('./grunt/bs-raw-files-generator.js');
+  var generateCommonJSModule = require('./grunt/bs-commonjs-generator.js');
 
   // Project configuration.
   grunt.initConfig({
@@ -444,7 +445,7 @@ module.exports = function (grunt) {
   grunt.registerTask('test-js', ['jshint:core', 'jshint:test', 'jshint:grunt', 'jscs:core', 'jscs:test', 'jscs:grunt', 'qunit']);
 
   // JS distribution task.
-  grunt.registerTask('dist-js', ['concat', 'uglify:core']);
+  grunt.registerTask('dist-js', ['concat', 'uglify:core', 'commonjs']);
 
   // CSS distribution task.
   grunt.registerTask('less-compile', ['less:compileCore', 'less:compileTheme']);
@@ -469,6 +470,12 @@ module.exports = function (grunt) {
     generateRawFiles(grunt, banner);
   });
 
+  grunt.registerTask('commonjs', 'Generate CommonJS entrypoint module in dist dir.', function () {
+    var srcFiles = grunt.config.get('concat.bootstrap.src');
+    var destFilepath = 'dist/js/npm.js';
+    generateCommonJSModule(grunt, srcFiles, destFilepath);
+  });
+
   // Docs task.
   grunt.registerTask('docs-css', ['autoprefixer:docs', 'autoprefixer:examples', 'csscomb:docs', 'csscomb:examples', 'cssmin:docs']);
   grunt.registerTask('lint-docs-css', ['csslint:docs', 'csslint:examples']);

dist/js/npm.js

+// This file is generated. You can require() it in a CommonJS environment.
+require('../../js/transition.js')
+require('../../js/alert.js')
+require('../../js/button.js')
+require('../../js/carousel.js')
+require('../../js/collapse.js')
+require('../../js/dropdown.js')
+require('../../js/modal.js')
+require('../../js/tooltip.js')
+require('../../js/popover.js')
+require('../../js/scrollspy.js')
+require('../../js/tab.js')
+require('../../js/affix.js')
\ No newline at end of file

grunt/bs-commonjs-generator.js

+'use strict';
+var fs = require('fs');
+var path = require('path');
+
+var COMMONJS_BANNER = '// This file is generated. You can require() it in a CommonJS environment.\n';
+
+module.exports = function generateCommonJSModule(grunt, srcFiles, destFilepath) {
+  var destDir = path.dirname(destFilepath);
+
+  function srcPathToDestRequire(srcFilepath) {
+    var requirePath = path.relative(destDir, srcFilepath);
+    return 'require(\'' + requirePath + '\')';
+  }
+
+  var moduleOutputJs = COMMONJS_BANNER + srcFiles.map(srcPathToDestRequire).join('\n');
+  try {
+    fs.writeFileSync(destFilepath, moduleOutputJs);
+  }
+  catch (err) {
+    grunt.fail.warn(err);
+  }
+  grunt.log.writeln('File ' + destFilepath.cyan + ' created.');
+};

package.json

@@ -18,6 +18,7 @@
   },
   "style": "dist/css/bootstrap.css",
   "less": "less/bootstrap.less",
+  "main": "./dist/js/npm",
   "repository": {
     "type": "git",
     "url": "https://github.com/twbs/bootstrap.git"