fix internal ref. via consts

cmd/rex/run.go

 		cwd = ctx.Args()[0]
 	}
 	if abspath, err := filepath.Abs(cwd); err == nil {
-		env.Set(internal.Root, abspath)
+		env.Set(internal.ROOT, abspath)
 	} else {
 		log.Fatalf("Failed to retrieve the directory: %v", err)
 	}

internal/consts.go

+/* ----------------------------------------------------------------------
+ *       ______      ___                         __
+ *      / ____/___  /   |  ____  __  ___      __/ /_  ___  ________
+ *     / / __/ __ \/ /| | / __ \/ / / / | /| / / __ \/ _ \/ ___/ _ \
+ *    / /_/ / /_/ / ___ |/ / / / /_/ /| |/ |/ / / / /  __/ /  /  __/
+ *    \____/\____/_/  |_/_/ /_/\__. / |__/|__/_/ /_/\___/_/   \___/
+ *                            /____/
+ *
+ * (C) Copyright 2015 GoAnywhere (http://goanywhere.io).
+ * ----------------------------------------------------------------------
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ * ----------------------------------------------------------------------*/
+package internal
+
+const ROOT = "rex.root"

rex.go

 	"path/filepath"
 	"runtime"
 
+	"github.com/goanywhere/rex/internal"
 	"github.com/goanywhere/rex/modules"
 	"github.com/goanywhere/x/env"
 	"github.com/goanywhere/x/fs"
 func init() {
 	// setup project root
 	var root = fs.Getcd(2)
-	env.Set("rex.root", fs.Getcd(2))
+	env.Set(internal.ROOT, root)
 	env.Load(filepath.Join(root, ".env"))
 
 	// cmd arguments