use absolute path for common.sh

support/helpers.sh → bin/common.sh

+#!/usr/bin/env bash
+
 # fail fast
 set -e
 
@@ -7,7 +9,6 @@ set -e
 function tar_download() {
   url="$1"
   location="$2"
-
   mkdir -p $location
   curl $url -s -o - | tar xzf - -C $location
 }

bin/compile

 #!/usr/bin/env bash
-source support/helpers.sh
 
 BUILD_DIR=$1
 CACHE_DIR=$2
-NODE_VERSION='0.10.15'
+BIN_DIR=$(cd $(dirname $0); pwd) # absolute path
+NODE_VERSION="0.10.15"
 NODE_URL="http://s3pository.heroku.com/node/v$NODE_VERSION/node-v$NODE_VERSION-linux-x64.tar.gz"
 
+source $BIN_DIR/common.sh
+
 status "Downloading node v$NODE_VERSION"
 echo "$NODE_URL" | indent
 tar_download $NODE_URL