Use godep

Godeps/_workspace/src/github.com/codegangsta/martini/env.go

@@ -0,0 +1,21 @@
+package martini
+
+import (
+	"os"
+)
+
+const (
+	Dev  string = "development"
+	Prod string = "production"
+	Test string = "test"
+)
+
+// Env is the environment that Martini is executing in. The MARTINI_ENV is read on initialization to set this variable.
+var Env string = Dev
+
+func init() {
+	e := os.Getenv("MARTINI_ENV")
+	if len(e) > 0 {
+		Env = e
+	}
+}