From fcf4a08452f41a6ac343d36985d9499822de38fb Mon Sep 17 00:00:00 2001
From: Andrew Gerrand <adg@golang.org>
Date: Mon, 6 Oct 2014 16:28:27 +1100
Subject: [PATCH] go.tools/dashboard/app: return specific error string on
 commit not found

TBR=bradfitz
R=bradfitz
CC=golang-codereviews
https://golang.org/cl/153070043
---
 dashboard/app/build/handler.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/dashboard/app/build/handler.go b/dashboard/app/build/handler.go
index 780d11e7..9682ea93 100644
--- a/dashboard/app/build/handler.go
+++ b/dashboard/app/build/handler.go
@@ -47,6 +47,9 @@ func commitHandler(r *http.Request) (interface{}, error) {
 		com.PackagePath = r.FormValue("packagePath")
 		com.Hash = r.FormValue("hash")
 		if err := datastore.Get(c, com.Key(c), com); err != nil {
+			if err == datastore.ErrNoSuchEntity {
+				return nil, errors.New("Commit not found")
+			}
 			return nil, fmt.Errorf("getting Commit: %v", err)
 		}
 		if com.Num == 0 {