From 761a425b9209d248d2dcf1259b5884a998caa2ad Mon Sep 17 00:00:00 2001
From: Eric Tune <etune@google.com>
Date: Wed, 18 Nov 2015 10:34:32 -0800
Subject: [PATCH] Replace readlink in update-codecgen for OSX

OS X does not have `readlink -f`
---
 hack/update-codecgen.sh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/hack/update-codecgen.sh b/hack/update-codecgen.sh
index 1bf2a268d02..3285c4de7a1 100755
--- a/hack/update-codecgen.sh
+++ b/hack/update-codecgen.sh
@@ -53,7 +53,8 @@ result=""
 function depends {
   file=${generated_files[$1]//\.generated\.go/.go}
   deps=$(go list -f "{{.Deps}}" ${file} | tr "[" " " | tr "]" " ")
-  fullpath=$(readlink -f ${generated_files[$2]//\.generated\.go/.go})
+  inputfile=${generated_files[$2]//\.generated\.go/.go}
+  fullpath=$(cd "$(dirname "${inputfile}")" && pwd -P)
   candidate=$(dirname "${fullpath}")
   result=false
   for dep in ${deps}; do