option to specify global var name to attach modernizr to Modernizr#2362 (Modernizr#2363)

* add option to specificy global variable name to attach modernizr to Modernizr#2362

* add tests for scriptGlobalName Modernizr#2362

* add command line option for script global name Modernizr#2362

Author: mreinstein

bin/modernizr

@@ -39,6 +39,10 @@ var yargs = require('yargs')
     alias: 'uglify',
     describe: 'uglify/minify the output'
   })
+  .options('s', {
+    alias: 'scriptGlobalName',
+    describe: 'Script global variable where Modernizr is attached. Defaults to window'
+  })
   .options('q', {
     alias: 'quiet',
     describe: 'Silence all output'
@@ -178,6 +182,10 @@ if (argv.u) {
   config.minify = true;
 }
 
+if (argv.scriptGlobalName) {
+  config.scriptGlobalName = argv.scriptGlobalName;
+}
+
 Modernizr.build(config, function(output) {
   fs.writeFileSync(dest, output);
   log('Modernizr build saved to ' + dest);

lib/build.js

@@ -82,6 +82,10 @@ function build(generate, generateBanner, pkg) {
       requireConfig.optimize = 'none';
     }
 
+    if(config.scriptGlobalName) {
+      requireConfig.wrap.end = '})(' + config.scriptGlobalName + ', document);';
+    }
+
     requireConfig.out = function(output) {
       output = banner + output;
 

lib/config-all.json

@@ -1,5 +1,6 @@
 {
   "classPrefix": "",
+  "scriptGlobalName": "window",
   "options": [
     "addTest",
     "atRule",

test/node/lib/build.js

@@ -113,6 +113,31 @@ describe('cli/build', function() {
 
     });
 
+    describe('scriptGlobalName', function() {
+      
+      it('should inject modernizr onto window by default', function(done) {
+        var config = {
+          'feature-detects': ['css/boxsizing']
+        };
+        build(config, function(file) {
+          expect(file).to.contain('})(window, document);');
+          done();
+        });
+      });
+
+      it('should inject modernizr onto custom window global when specified', function(done) {
+        var config = {
+          'scriptGlobalName': 'window.awesomeco',
+          'feature-detects': ['css/boxsizing']
+        };
+        build(config, function(file) {
+          expect(file).to.contain('})(window.awesomeco, document);');
+          done();
+        });
+      });
+
+    });
+
     describe('minified', function() {
       var output;