Display server version at startup when not running from git repository

Author: gklyne

bin/lib/cli.js

@@ -25,10 +25,15 @@ function getVersion () {
     // Obtain version from git
     const options = { cwd: __dirname, encoding: 'utf8' }
     const { stdout } = spawnSync('git', ['describe', '--tags'], options)
-    return stdout.trim()
+    const version = stdout.trim()
+    if (version === '') {
+      throw new Error('No git version here')
+    }
+    return version
   } catch (e) {
     // Obtain version from package.json
     const { version } = require(path.join(__dirname, '../../package.json'))
     return version
   }
 }
+