feat: add support for now

Closes #15

Author: gregberge

packages/core/src/services/index.js

@@ -8,6 +8,7 @@ import * as drone from './drone'
 import * as gitlab from './gitlab'
 import * as heroku from './heroku'
 import * as jenkins from './jenkins'
+import * as now from './now'
 import * as netlify from './netlify'
 import * as semaphore from './semaphore'
 import * as shippable from './shippable'
@@ -18,6 +19,7 @@ import * as wercker from './wercker'
 
 export default [
   netlify,
+  now,
   circle,
   heroku,
   appveyor,

packages/core/src/services/now.js

@@ -0,0 +1,12 @@
+export function detect() {
+  return !!process.env.NOW_GITHUB_DEPLOYMENT
+}
+
+export function config() {
+  return {
+    name: 'Now',
+    service: 'now',
+    commit: process.env.NOW_GITHUB_COMMIT_SHA,
+    branch: process.env.NOW_GITHUB_COMMIT_REF,
+  }
+}