Merge pull request #2 from GeertJohan/master

Handle version overflow better. Add missing return.

.gitignore

@@ -0,0 +1 @@
+/gopkg

main.go

@@ -139,6 +139,7 @@ func handler(resp http.ResponseWriter, req *http.Request) {
 	repo.Version, ok = parseVersion(m[3])
 	if !ok {
 		sendNotFound(resp, "Version %q improperly considered invalid; please warn the service maintainers.", m[3])
+		return
 	}
 
 	repo.HubRoot = repo.GitRoot

version.go

@@ -91,9 +91,12 @@ func parseVersionPart(s string, i int) (part int, newi int) {
 		}
 		part *= 10
 		part += int(s[i] - '0')
+		if part < 0 {
+			return -1, -1
+		}
 		i++
 		if i+1 < len(s) && s[i] == '.' {
-			return part, i+1
+			return part, i + 1
 		}
 	}
 	return part, i