From 9573c2732d06432d06f9adc126add0e67de1497c Mon Sep 17 00:00:00 2001
From: Devin Singh <drsingh2518@icloud.com>
Date: Thu, 27 May 2021 17:23:15 -0500
Subject: [PATCH] feat: cd - changes pwd to previous one

close #53
---
 preload.lua | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/preload.lua b/preload.lua
index 9c15a5d..4cb3d46 100644
--- a/preload.lua
+++ b/preload.lua
@@ -3,6 +3,7 @@
 local fs = require 'fs'
 local commander = require 'commander'
 local bait = require 'bait'
+local old_dir = os.getenv "PWD"
 
 -- Builtins
 commander.register('cd', function (args)
@@ -13,8 +14,12 @@ commander.register('cd', function (args)
 			path = path .. tostring(args[i]) .. ' '
 		end
 		path = path:gsub('$%$','\0'):gsub('${([%w_]+)}', os.getenv)
-		:gsub('$([%w_]+)', os.getenv):gsub('%z','$')
+		:gsub('$([%w_]+)', os.getenv):gsub('%z','$'):gsub("%s+", "")
 
+        if path == '-' then
+            path = old_dir
+        end
+        old_dir = os.getenv "PWD"
 		local ok, err = pcall(function() fs.cd(path) end)
 		if not ok then
 			if err == 1 then