revel/revel#1057 code improvements docs, errcheck, cyclo, etc

revel/package.go

@@ -1,3 +1,7 @@
+// Copyright (c) 2012-2016 The Revel Framework Authors, All rights reserved.
+// Revel Framework source code and usage is governed by a MIT style
+// license that can be found in the LICENSE file.
+
 package main
 
 import (
@@ -38,7 +42,7 @@ func packageApp(args []string) {
 	}
 
 	// Determine the run mode.
-	mode := "dev"
+	mode := DefaultRunMode
 	if len(args) >= 2 {
 		mode = args[1]
 	}
@@ -48,7 +52,9 @@ func packageApp(args []string) {
 
 	// Remove the archive if it already exists.
 	destFile := filepath.Base(revel.BasePath) + ".tar.gz"
-	os.Remove(destFile)
+	if err := os.Remove(destFile); err != nil && !os.IsNotExist(err) {
+		revel.ERROR.Fatal(err)
+	}
 
 	// Collect stuff in a temp directory.
 	tmpDir, err := ioutil.TempDir("", filepath.Base(revel.BasePath))