Added cname option

--cname has been added as an option
If added it will create a 'CNAME' file enabling custom domain name usage
README updated to demonstrate how to use

Author: Ben Davies

README.md

@@ -200,7 +200,13 @@ With `--no-dotfiles` files starting with `.` are ignored.
 
 Run through without making any changes. This can be very usefull, because it outputs what would happend without doing anything.
 
+#### <a id="cname">--cname</a>
+ * __optional__
+ * Default: `No CNAME file is generated`
+ * Example:
+    * `ngh --cname=example.com`
 
+A CNAME file will be created enabling you to use a custom domain. [More information on Github Pages using a custom domain](https://help.github.com/articles/using-a-custom-domain-with-github-pages/). 
 
 ## FAQ
 

bin/angular-cli-ghpages

@@ -15,6 +15,7 @@ program
   .option('-e, --email <email>', 'The git user-email which is associated with this commit')
   .option('-S, --no-silent', 'Logging is in silent mode by default. The option enables extended console logging. Keep this untouched if the repository URL or other information passed to git commands is sensitive!')
   .option('-T, --no-dotfiles', 'Includes dotfiles by default. When set files starting with `.` are ignored.')
+  .option('-c, --cname <domain>', 'Generate a CNAME for the specified domain')
   .option('--dry-run', 'For testing: Run through without making any changes.')
   .parse(process.argv);
 

index.js

@@ -87,11 +87,23 @@ exports.run = function (options) {
           user: options.user || 'undefined: local or gloabl git username & email properties will be taken',
           noSilent: options.noSilent || 'undefined: logging is in silent mode by default',
           noDotfiles: options.noDotfiles || 'undefined: dotfiles are included by default',
-          dryRun: options.dryRun
+          dryRun: options.dryRun,
+          cname: options.cname || 'undefined: no CNAME file will be created',
         });
         return;
       }
 
+      if (options.cname) {
+        console.log('CNAME option is present with value: ' + options.cname);
+        fs.writeFile(dir + '/CNAME', options.cname, function (err) {
+          if (err) {
+            console.log(err);
+          } else {
+            console.log('CNAME file created');
+          }
+        })
+      }
+
       return publish(dir, options)
     })
     .then(function showSuccess() {