Add Domain Option

bin/gh-pages.js

@@ -74,6 +74,7 @@ function main(args) {
         '--before-add <file>',
         'Execute the function exported by <file> before "git add"'
       )
+      .option('--domain <domain>', 'Custom Domain to publish page')
       .parse(args);
 
     let user;
@@ -122,7 +123,8 @@ function main(args) {
       push: !!program.push,
       history: !!program.history,
       user: user,
-      beforeAdd: beforeAdd
+      beforeAdd: beforeAdd,
+      domain: program.domain
     };
 
     return publish(config);

lib/index.js

@@ -178,6 +178,14 @@ exports.publish = function publish(basePath, config, callback) {
         );
       })
       .then(git => {
+        if (options.domain) {
+          log('Adding CNAME');
+          fs.writeFileSync(
+            path.join(git.cwd, options.dest, 'CNAME'),
+            options.domain
+          );
+        }
+
         return Promise.resolve(
           options.beforeAdd && options.beforeAdd(git)
         ).then(() => git);

test/integration/domain.spec.js

@@ -0,0 +1,39 @@
+const helper = require('../helper');
+const ghPages = require('../../lib');
+const path = require('path');
+
+const fixtures = path.join(__dirname, 'fixtures');
+const fixtureName = 'domain';
+
+beforeEach(() => {
+  ghPages.clean();
+});
+
+describe('the domain option', () => {
+  it('adds CNAME file', done => {
+    const local = path.join(fixtures, fixtureName, 'local');
+    const expected = path.join(fixtures, fixtureName, 'expected');
+    const branch = 'gh-pages';
+
+    helper.setupRemote(fixtureName, {branch}).then(url => {
+      const options = {
+        repo: url,
+        user: {
+          name: 'User Name',
+          email: 'user@email.com'
+        },
+        domain: 'customdomain.github.io'
+      };
+
+      ghPages.publish(local, options, err => {
+        if (err) {
+          return done(err);
+        }
+        helper
+          .assertContentsMatch(expected, url, branch)
+          .then(() => done())
+          .catch(done);
+      });
+    });
+  });
+});

test/integration/fixtures/domain/expected/CNAME

@@ -0,0 +1 @@
+customdomain.github.io

test/integration/fixtures/domain/expected/hello-world.txt

@@ -0,0 +1 @@
+Hello World!

test/integration/fixtures/domain/local/hello-world.txt

@@ -0,0 +1 @@
+Hello World!