From 938d9f07b79365cd07b13ff6f3d32621b51a1064 Mon Sep 17 00:00:00 2001
From: Kyle Mathews <mathews.kyle@gmail.com>
Date: Tue, 8 Mar 2016 09:58:32 -0800
Subject: [PATCH] When user runs unknown command, show the help

Closes #178

Also something to investigate would be to do a fuzzy search
for what the user intended to type and suggest that:

https://github.com/tj/commander.js/issues/432#issuecomment-175815584
---
 bin/index.js | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/bin/index.js b/bin/index.js
index 97b9334a7310c..cfa4b5f60eb8e 100644
--- a/bin/index.js
+++ b/bin/index.js
@@ -1,6 +1,9 @@
 /*eslint-disable */
 var program = require('commander')
 var packageJson = require('../package.json')
+var _ = require('lodash')
+var subCmd
+var cmds
 /*eslint-enable */
 
 program
@@ -9,3 +12,11 @@ program
   .command('build [directory]', 'Do a production build of site')
   .command('new [rootPath] [starter]', 'Create new Gatsby project in path [.].')
   .parse(process.argv)
+
+// If the user types an unknown sub-command, just display the help.
+subCmd = _.head(program.args)
+cmds = _.map(program.commands, '_name')
+
+if (!_.includes(cmds, subCmd)) {
+  program.help()
+}