1 files changed, 16 insertions, 0 deletions
diff --git a/util.go b/util.go
index 851ee3475..803260920 100644
--- a/util.go
+++ b/util.go
@@ -1,7 +1,23 @@
 package main
 
+import (
+	"net/url"
+)
+
 func Assert(cond bool, msg string) {
 	if !cond {
 		panic(msg)
 	}
 }
+
+func IsRemote(filename string) bool {
+	u, err := url.Parse(filename)
+	check(err)
+	return u.IsAbs()
+}
+
+func check(e error) {
+	if e != nil {
+		panic(e)
+	}
+}