#!/bin/bash

# Download and install PYTHON

VERSION=2.7.2

ARCHIVE_EXT=.tgz

ARCHIVE=Python-${VERSION}${ARCHIVE_EXT}

TARGET_DIR=`basename ${ARCHIVE} ${ARCHIVE_EXT}`

ARCHIVE_LOCATION=http://www.python.org/ftp/python/${VERSION}/${ARCHIVE}

BUILD_TAG=python${VERSION}

LOCAL_DIR=${HOME}/local

mkdir -p ${LOCAL_DIR}

BUILD_DIR=${HOME}/build_${BUILD_TAG}

TAG="BUILD${BUILD_TAG} -- "

mkdir -p ${BUILD_DIR}

cd ${BUILD_DIR}

SQLITE_DIR=${HOME}/local/include

OPENSSL_DIR=${HOME}/local/include/

if [ ! -d ${TARGET_DIR} ]; then

echo "${TAG} Downloading ${BUILD_TAG} in " `pwd`

wget -c ${ARCHIVE_LOCATION}

if [ ! -e ${ARCHIVE} ]; then

echo "${TAG} Failed to download from ${ARCHIVE_LOCATION}."

exit 1

fi

tar -xzf ${ARCHIVE}

fi

if [ ! -d ${TARGET_DIR} ]; then

echo "${TAG} Failed to extract ${ARCHIVE}."

exit 1

fi

cd ${TARGET_DIR}

mkdir -p ${LOCAL_DIR}

#TODO: If sqlite3 is in local/lib, add '$HOME/local/include' to sqlite_inc_paths list in setup.py

# Maybe add set the 64 bit option by sed'ing the Makefile

if [ -e ${SQLITE_DIR}/sqlite3.h ]; then

echo "${TAG} Configuring setup.py for local sqlite3."

if [ ! -e setup.py.old ]; then

cp setup.py setup.py.old

fi

sed=`which sed`

cat <<EOF > configure_sqlite.sed

#!${sed} -f

# Created by build-${TAG}.bash

s! sqlite_inc_paths = \[ '/usr/include',! sqlite_inc_paths = \[ '${SQLITE_DIR}' !

s! '/usr/include/sqlite',!!

s! '/usr/include/sqlite3',!!

s! '/usr/local/include',!!

s! '/usr/local/include/sqlite',!!

s! '/usr/local/include/sqlite3',!!

EOF

chmod +x configure_sqlite.sed

cp setup.py tmp_setup.py

./configure_sqlite.sed < tmp_setup.py > setup.py

else

echo "${TAG} Local sqlite3 does not exist."

fi

if [ -e ${OPENSSL_DIR}/openssl/ssl.h ]; then

echo "${TAG} Configuring setup.py for local openssl."

sed=`which sed`

cat <<EOF > configure_openssl.sed

#!${sed} -f

# Created by build-${TAG}.bash

s! search_for_ssl_incs_in = \[! search_for_ssl_incs_in = \[ '${OPENSSL_DIR}' !

s! '/usr/local/ssl/include',!!

s! '/usr/contrib/ssl/include/'!!

s! \['/usr/local/ssl/lib',! \[ '${LOCAL_DIR}/lib64/',!

EOF

cat <<EOF

EOF

chmod +x configure_openssl.sed

cp setup.py tmp_setup.py

./configure_openssl.sed < tmp_setup.py > setup.py

else

echo "${TAG} Local openssl does not exist."

fi

CONFIGURE_OUT=configure.out

echo "${TAG} Configuring >& ${CONFIGURE_OUT}"

if [[ `uname -m` == "ppc64" ]]; then

CC="gcc -m64"

else

CC="gcc"

fi

CC="gcc -m64"

# For some reason I have to configure twice to get readline working

./configure --prefix=${LOCAL_DIR} --with-readline=yes --enable-unicode >& ${CONFIGURE_OUT}

if [ $? != 0 ]; then

tail ${CONFIGURE_OUT}

echo "${TAG} Failed to configure ${BUILD_TAG} (check ${CONFIGURE_OUT})"

exit 3

fi

if [ -e ${LOCAL_DIR}/lib/libreadline.a ]; then

echo "${TAG} Using local readline installation."

echo "readline readline.c -I${LOCAL_DIR}/include -L${LOCAL_DIR}/lib -lreadline -ltermcap" >> Modules/Setup.local

./configure --prefix=${LOCAL_DIR} --with-readline=yes >& ${CONFIGURE_OUT}

if [ $? != 0 ]; then

tail ${CONFIGURE_OUT}

echo "${TAG} Failed to configure ${BUILD_TAG} with readline (check ${CONFIGURE_OUT})"

exit 3

fi

fi

BUILD_OUT=make.out

echo "${TAG} Building python with ${CC}"

echo "${TAG} Building >& ${BUILD_OUT}"

env CC="${CC}" make >& ${BUILD_OUT}

if [ $? != 0 ]; then

tail ${BUILD_OUT}

echo "${TAG} Failed to build ${BUILD_TAG} (check ${BUILD_OUT})"

exit 3

fi

INSTALL_OUT=make_install.out

echo "${TAG} Installing >& ${INSTALL_OUT}"

make install >& ${INSTALL_OUT}

if [ $? != 0 ]; then

tail ${INSTALL_OUT}

echo "${TAG} Failed to install ${BUILD_TAG} (check ${INSTALL_OUT})"

exit 3

fi

echo "${TAG} Success."