From c77a8d0f9f7e155cd1ba085e5fd7ed4c1137c2f0 Mon Sep 17 00:00:00 2001
From: Victorien Elvinger <victorien@elvinger.fr>
Date: Mon, 11 Apr 2016 23:26:57 +0200
Subject: [PATCH] feat(cli): add tag signing option (--sign-tag and its alias
 -s)

By default, a tag is not signed (git tag -a).
The option `--sign-tag` enables tag signing (git tag -s).
---
 index.js | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/index.js b/index.js
index 5a18542b9..b7e74f219 100755
--- a/index.js
+++ b/index.js
@@ -24,6 +24,13 @@ var argv = require('yargs')
     default: false,
     global: true
   })
+  .option('sign-tag', {
+    alias: 's',
+    describe: 'Should the git tag be signed?',
+    type: 'boolean',
+    default: false,
+    global: true
+  })
   .help()
   .alias('help', 'h')
   .example('$0', 'Update changelog and tag release')
@@ -123,8 +130,14 @@ function formatCommitMessage (msg, newVersion) {
 }
 
 function tag (newVersion, argv) {
+  var tagOption
+  if (argv.signTag) {
+    tagOption = '-s '
+  } else {
+    tagOption = '-a '
+  }
   checkpoint('tagging release %s', [newVersion])
-  exec('git tag -a v' + newVersion + ' -m "' + argv.message + '"', function (err, stdout, stderr) {
+  exec('git tag ' + tagOption + 'v' + newVersion + ' -m "' + argv.message + '"', function (err, stdout, stderr) {
     var errMessage = null
     if (err) errMessage = err.message
     if (stderr) errMessage = stderr