From 8e5c8c0832e102ef54d35c73857fc08ea598ead8 Mon Sep 17 00:00:00 2001
From: Vincent Fretin <vincent.fretin@gmail.com>
Date: Wed, 7 Jan 2015 19:04:40 +0100
Subject: [PATCH] give CACHE_PATH environment variable for forward
 compatibility with herokuish

herokuish defaults to /tmp/cache, so the build cache don't work without giving the CACHE_PATH environment variable. You can test it with buildstep herokuish branch. cc @progrium
---
 dokku | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dokku b/dokku
index d4e00a68c..9f9819851 100755
--- a/dokku
+++ b/dokku
@@ -54,7 +54,7 @@ case "$1" in
     docker commit $id $IMAGE > /dev/null
     [[ -d $CACHE_DIR ]] || mkdir $CACHE_DIR
     pluginhook pre-build $APP
-    id=$(docker run -d -v $CACHE_DIR:/cache $IMAGE /build/builder)
+    id=$(docker run -d -v $CACHE_DIR:/cache -e CACHE_PATH=/cache $IMAGE /build/builder)
     docker attach $id
     test "$(docker wait $id)" -eq 0
     docker commit $id $IMAGE > /dev/null