Install pcre on OpenShift

openshift-install-pcre.sh

#!/bin/bash

# script to install pcre on openshift
# this can be called in your action_hooks to setup pcre
# useful if you want to use regex in uwsgi, or nginx
#
# NOTE: 
# If scaling, make sure you call this in your pre_start* hook, 
# ${OPENSHIFT_DATA_DIR} is not copied over for a new gear


PCRE_VERSION="8.33"
PCRE_NAME="pcre-${PCRE_VERSION}"
PCRE_TARBALL=${PCRE_NAME}.tar.gz
PCRE_SRC="ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/${PCRE_TARBALL}"

function setup_env()
{
    if [ -z $(echo $PATH | grep "$OPENSHIFT_DATA_DIR/bin") ]; then
        export PATH=$PATH:${OPENSHIFT_DATA_DIR}/bin
        export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:${OPENSHIFT_DATA_DIR}/lib
    fi
}
function cleanup()
{
    rm -rf ${OPENSHIFT_DATA_DIR}/${PCRE_TARBALL}
    rm -rf ${OPENSHIFT_DATA_DIR}/${PCRE_NAME}
}

function install_pcre()
{
    wget ${PCRE_SRC}
    tar xvf ${PCRE_TARBALL}
    cd ${PCRE_NAME}
    ./configure --prefix=${OPENSHIFT_DATA_DIR}
    make
    make install
}

if [ ! -f "$OPENSHIFT_DATA_DIR/bin/pcre-config" ]; then
    install_pcre
    setup_env
    cleanup
fi