Major updates/patches, functionality, api

scripting/config/config.go

@@ -0,0 +1,96 @@
+package config
+
+import (
+	"github.com/yuin/gopher-lua"
+	"io/ioutil"
+	luajson "layeh.com/gopher-json"
+	"os"
+	"path"
+)
+
+var (
+	BasePath string
+)
+
+func Loader(L *lua.LState) int {
+	// register functions to the table
+	mod := L.SetFuncs(L.NewTable(), exports)
+
+	// returns the module
+	L.Push(mod)
+	return 1
+}
+
+var exports = map[string]lua.LGFunction{
+	"load": loadFunc,
+	"save": saveFunc,
+}
+
+func loadFunc(L *lua.LState) int {
+	name := L.CheckString(1)
+
+	f, err := os.Open(path.Join(BasePath, name+".json"))
+
+	if err != nil {
+		L.Push(lua.LNil)
+		L.Push(lua.LString(err.Error()))
+		return 2
+	}
+
+	defer f.Close()
+
+	b, err := ioutil.ReadAll(f)
+
+	if err != nil {
+		L.Push(lua.LNil)
+		L.Push(lua.LString(err.Error()))
+		return 2
+	}
+
+	v, err := luajson.Decode(L, b)
+
+	if err != nil {
+		L.Push(lua.LNil)
+		L.Push(lua.LString(err.Error()))
+		return 2
+	}
+
+	L.Push(v)
+	L.Push(lua.LNil)
+	return 2
+}
+
+func saveFunc(L *lua.LState) int {
+	name := L.CheckString(1)
+	value := L.CheckAny(2)
+
+	f, err := os.Create(path.Join(BasePath, name+".json"))
+
+	if err != nil {
+		L.Push(lua.LString(err.Error()))
+		return 1
+	}
+
+	b, err := luajson.Encode(value)
+
+	if err != nil {
+		L.Push(lua.LString(err.Error()))
+		return 1
+	}
+
+	_, err = f.Write(b)
+
+	if err != nil {
+		L.Push(lua.LString(err.Error()))
+		return 1
+	}
+
+	err = f.Close()
+
+	if err != nil {
+		L.Push(lua.LString(err.Error()))
+		return 1
+	}
+
+	return 0
+}