Create a Virtual ENV for appengine and python2.7

appengine.sh

#!/bin/bash
# 
# Build a virtual environment suitable for running appengine. 
# This uses virtualenvwrapper to make the virtual environment.
# Which you can activate with 'workon appengine'
#
# Everyone loves one-liners!
# Mac one-liner:
#   $ curl -s https://raw.github.com/gist/2839803 | bash
# 
# Ubuntu one-liner:
#   $ sudo apt-get install curl && curl -s https://raw.github.com/gist/1012769 | bash
#
#
# Install steps:
# 1) Checks for virtualenvwrapper and install if needed.
# 2) Activates virtualenvwrapper and creates $WORKON_HOME
# 3) Makes 'appengine' virtual environment
# 4) Downloads and extracts google appengine source
# 5) pip installs a few extra packages
# 
# Ubuntu Install Help
# 1) sudo apt-get install curl python-setuptools
#
# CHANGELOG
# 11-18-12 - Fixed url for the appengine version check.
# 05-16-12 - Fixing typos in if statements.
# 11-01-11 - Adding support for Macosx Lion.
# 11-01-11 - Fixing bug in platform check which was always true.
# 10-03-11 - Adding support for Ubunutu. 

PLATFORM=`uname -s`
VERSION=`uname -r`

if [[ $PLATFORM == "Linux" ]]
then
    # check for individual packages in case they already had python2.5
    # just in case
    if [[ ! -e /usr/bin/curl ]]
    then
        sudo apt-get install curl
    fi
    if [[ ! -e /usr/bin/easy_install ]]
    then
        sudo apt-get install python-setuptools
    fi
    # check for ssl
    if [[ ! -e /usr/include/openssl/ssl.h ]]
    then
        sudo apt-get install libssl-dev
    fi
    # check for libbluetooth-dev
    if [[ ! -e /usr/include/bluetooth/bluetooth.h ]]
    then
        sudo apt-get install libbluetooth-dev
    fi
fi

LATEST_VERSION=`curl -s https://appengine.google.com/api/updatecheck | awk '$1 ~/release/ {print $2};' | sed s/\"//g`

# Modify me as new versions are released.
APPENGINE_VERSION=google_appengine_$LATEST_VERSION.zip


which virtualenvwrapper.sh
VWNOTFOUND=$?

if [[ $VWNOTFOUND == 1 ]]
then
	echo 'Installing virtualenvwrapper...'
        sudo easy_install virtualenvwrapper
fi

if [[ ! $WORKON_HOME ]]
then
        export WORKON_HOME=$HOME/envs
fi

# make sure we are not dealing with a customize path
unset PYTHONPATH

mkdir -p $WORKON_HOME
source `which virtualenvwrapper.sh`

cd $WORKON_HOME

if [[ -e appengine ]] 
then
     echo "Using existing appengine ENV"
     workon appengine
else
     mkvirtualenv --no-site-packages --distribute --python=python2.7 appengine
fi

if [[ ! $VIRTUAL_ENV ]]
then
     echo "Problem running mkvirtualenv!"
     exit 1
fi

# Don't download the file over again.
if [[ ! -e $APPENGINE_VERSION ]]
then
    curl -O http://googleappengine.googlecode.com/files/$APPENGINE_VERSION
fi

echo "Extracting Google App Engine source..."
unzip -uq $APPENGINE_VERSION -d $VIRTUAL_ENV

if [[ ! $? == 0 ]]
then
    echo "Problem unzipping file $APPENGINE_VERISON"
    echo "Please delete it and try again!"
    exit $?
fi
# Create a pth file for App Engine source
echo "$VIRTUAL_ENV/google_appengine" > $VIRTUAL_ENV/lib/python2.7/site-packages/gae.pth

# Link scripts
cd $VIRTUAL_ENV/bin
ln -s $VIRTUAL_ENV/google_appengine/*.py .

# On mac's add some compiler flags.
if [[ $PLATFORM == "Darwin" ]]
then
     ARCHFLAGS="-arch i386 -arch x86_64"
fi

for package in webtest PIL fabric coverage ipython==0.10.2
do
    echo "Installing $package ..."
    pip install -qU $package
done

# uninstall webob as it conflicts with the bundled one in app engine.
echo "Uninstalling webob ..."
pip uninstall -q -y webob

echo "You are ready to roll. Edit .bashrc as needed and run 'workon appengine'"

if [[ $VWNOTFOUND == 1 ]]
then
        echo "Virtualenvwrapper has been installed."
        echo "Please add the following to your .bashrc file:"
        echo ' export WORKON_HOME=$HOME/envs'
        echo ' source `which virtualenvwrapper.sh`'
fi