git-node: ask to push commits and copy to clipboard

Refs: nodejs#428
Refs: nodejs#425

lib/landing_session.js

@@ -6,6 +6,7 @@ const {
   runAsync, runSync, forceRunAsync
 } = require('./run');
 const Session = require('./session');
+const clipboardy = require('clipboardy');
 const {
   shortSha
 } = require('./utils');
@@ -256,9 +257,21 @@ class LandingSession extends Session {
     }
 
     cli.log('To finish landing:');
-    cli.log(`1. Run \`git push ${upstream} ${branch}\``);
+
+    const shouldPush = await cli.prompt(
+      `Do you want to push the commits to ${upstream} ${branch}?`
+    );
+    if (shouldPush) {
+      await runAsync('git', ['push', upstream, branch]);
+    } else {
+      cli.log(`Run \`git push ${upstream} ${branch}\``);
+    }
+
     const url = `https://github.com/${owner}/${repo}/pull/${prid}`;
-    cli.log(`2. Post "Landed in ${willBeLanded}" in ${url}`);
+
+    clipboardy.writeSync(`Landed in ${willBeLanded} :tada:`);
+    cli.log(`Copied "Landed in ${willBeLanded} :tada:" to clipboard`);
+    cli.log(`Please copy the clipboard to ${url}`);
 
     const shouldClean = await cli.prompt('Clean up generated temporary files?');
     if (shouldClean) {