fix: use hilbish.cwd to get cwd

close #53

hilbish.go

@@ -14,6 +14,7 @@ import (
 var exports = map[string]lua.LGFunction {
 	"run": run,
 	"flag": flag,
+	"cwd": cwd,
 }
 
 func HilbishLoader(L *lua.LState) int {
@@ -53,3 +54,12 @@ func flag(L *lua.LState) int {
 
 	return 1
 }
+
+func cwd(L *lua.LState) int {
+	cwd, _ := os.Getwd()
+
+	L.Push(lua.LString(cwd))
+
+	return 1
+}
+

lua.go

@@ -12,6 +12,7 @@ import (
 	"hilbish/golibs/fs"
 
 	"github.com/yuin/gopher-lua"
+	"layeh.com/gopher-luar"
 )
 
 var minimalconf = `
@@ -30,6 +31,7 @@ func LuaInit() {
 	l.SetGlobal("alias", l.NewFunction(hshalias))
 	l.SetGlobal("appendPath", l.NewFunction(hshappendPath))
 	l.SetGlobal("exec", l.NewFunction(hshexec))
+	l.SetGlobal("goro", luar.New(l, hshgoroutine))
 
 	// yes this is stupid, i know
 	l.PreloadModule("hilbish", HilbishLoader)
@@ -151,3 +153,7 @@ func hshexec(L *lua.LState) int {
 	syscall.Exec(cmdPath, cmdArgs, os.Environ())
 	return 0 // random thought: does this ever return?
 }
+
+func hshgoroutine(gofunc func()) {
+	go gofunc()
+}

preload.lua

@@ -3,6 +3,7 @@
 local fs = require 'fs'
 local commander = require 'commander'
 local bait = require 'bait'
+local old_dir = hilbish.cwd()
 
 -- Builtins
 commander.register('cd', function (args)
@@ -13,7 +14,13 @@ 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
+            print(path)
+        end
+        old_dir = hilbish.cwd()
 
 		local ok, err = pcall(function() fs.cd(path) end)
 		if not ok then