From 52347a0c983dedece08d5be6d3f1a237ed9d19ca Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Gra=C3=B1a?= <dangra@gmail.com>
Date: Wed, 6 Aug 2014 00:10:43 -0300
Subject: [PATCH] Do not fail if buildpack dir is readonly

---
 bin/steps/python | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/bin/steps/python b/bin/steps/python
index 8d2384f..d36b316 100755
--- a/bin/steps/python
+++ b/bin/steps/python
@@ -52,22 +52,22 @@ if [ "$FRESH_PYTHON" ] || [[ ! $(pip --version) == *$PIP_VERSION* ]]; then
 
   bpwatch start prepare_environment
 
+  TMPTARDIR=$(mktemp -d)
+  trap "rm -rf $TMPTARDIR" RETURN
+
   bpwatch start install_setuptools
     # Prepare it for the real world
     # puts-step "Installing Setuptools ($SETUPTOOLS_VERSION)"
-    cd $ROOT_DIR/vendor/
-    tar zxf setuptools-$SETUPTOOLS_VERSION.tar.gz
-    cd $ROOT_DIR/vendor/setuptools-$SETUPTOOLS_VERSION/
+    tar zxf $ROOT_DIR/vendor/setuptools-$SETUPTOOLS_VERSION.tar.gz -C $TMPTARDIR
+    cd $TMPTARDIR/setuptools-$SETUPTOOLS_VERSION/
     python setup.py install &> /dev/null
     cd $WORKING_DIR
   bpwatch stop install_setuptoools
 
   bpwatch start install_pip
     # puts-step "Installing Pip ($PIP_VERSION)"
-
-    cd $ROOT_DIR/vendor/
-    tar zxf pip-$PIP_VERSION.tar.gz
-    cd $ROOT_DIR/vendor/pip-$PIP_VERSION/
+    tar zxf $ROOT_DIR/vendor/pip-$PIP_VERSION.tar.gz -C $TMPTARDIR
+    cd $TMPTARDIR/pip-$PIP_VERSION/
     python setup.py install &> /dev/null
     cd $WORKING_DIR
 
@@ -76,4 +76,4 @@ if [ "$FRESH_PYTHON" ] || [[ ! $(pip --version) == *$PIP_VERSION* ]]; then
 fi
 
 set -e
-hash -r
\ No newline at end of file
+hash -r