phermin (PHP Version Manager)

phermin

#!/bin/bash

##
# phermin -- PHP Version Manager
#
#     *** USE AT OWN RISK! ***
#
# Usage:   phermin [<task>] [<args>]
# Author:  Marc Ermshaus <marc@ermshaus.org>
# License: MIT <http://opensource.org/licenses/mit-license.php>
# Version: 0.1.0-dev 2012-Sep-15
##

glo_retstate=0
glo_phermin_path="${HOME}/.phermin"
glo_phermin_builds_path="${glo_phermin_path}/builds"

#
#
#
phermin_echo()
{
        echo "[phermin] ${1}"
}

#
#
#
phermin_task_help()
{
        local content=$(cat <<EOF
help

        Prints this help.

install <version>

        Tries to download and install the specified PHP version.

purge

        Removes ~/.phermin directory.

status

        Prints status information about the phermin environment.

use <version>

        Changes the target of symlink /usr/bin/php to specified version.

use-reset

        Resets the target of symlink /usr/bin/php to /etc/alternatives/php.

version

        Prints the phermin version number string.
EOF
)

        echo "${content}"
        glo_retstate=0
}

#
#
#
phermin_task_version()
{
        echo "phermin 0.1.0-dev"
        glo_retstate=0
}

#
#
#
phermin_task_install()
{
        local version=${1}
        local prefix=${glo_phermin_builds_path}

        local cwd=$(pwd)
        local url="http://php.net/get/php-${version}.tar.gz/from/de.php.net/mirror"
        local tmpfile=$(mktemp)
        local tmpdir=$(mktemp -d)

        phermin_echo "Downloading ${url} to ${tmpfile}"
        wget -O ${tmpfile} ${url}
        
        if [ $? -ne 0 ];
        then
                # Try to grab from museum.php.net
                url="http://museum.php.net/php5/php-${version}.tar.gz"
                wget -O ${tmpfile} ${url} || (cd ${cwd} && exit 1)
        fi

        phermin_echo "Unpacking ${tmpfile} to ${tmpdir}"
        tar xzpf ${tmpfile} -C ${tmpdir} || (cd ${cwd} && exit 1)

        phermin_echo "Configure"
        cd "${tmpdir}/php-${version}" || (cd ${cwd} && exit 1)
        ./configure \
                --prefix="${prefix}/${version}" \
                --with-libdir=/lib64 \
                --with-gd \
                --with-jpeg-dir \
                --enable-mbstring \
                --with-curl \
                --with-kerberos \
                --enable-bcmath \
                --with-zlib \
                --with-freetype-dir=/usr \
                --with-gettext \
                --with-openssl \
                --enable-soap \
                --enable-pcntl \
                --with-xsl \
                --with-pspell \
                --enable-zip \
                --with-xmlrpc \
                --enable-sockets \
                --enable-exif \
                --enable-calendar || (cd ${cwd} && exit 1)               

        phermin_echo "Make"
        make || (cd ${cwd} && exit 1)

        phermin_echo "Make install"
        make install || (cd ${cwd} && exit 1)

        phermin_echo "Moving php.ini"
        cp "${tmpdir}/php-${version}/php.ini-development" "${prefix}/${version}/lib/php.ini"

        phermin_echo "Test"
        ${prefix}/${version}/bin/php --version || (cd ${cwd} && exit 1)

        phermin_echo "Success"

        phermin_echo "Cleaning up"
        rm -rf ${tmpdir}
        rm ${tmpfile}

        phermin_echo "Resetting cwd"
        cd ${cwd}

        glo_retstate=0
}

#
#
#
phermin_task_purge()
{
        phermin_task_use_reset
        rm -rf ${glo_phermin_path}

        phermin_echo "Purged."

        glo_retstate=0
}

#
#
#
phermin_task_status()
{
        echo "phermin directory: ${glo_phermin_path}"
        echo "phermin builds directory: ${glo_phermin_builds_path}"

        local versions=$(ls -1 ${glo_phermin_builds_path} | tr "\\n" " ")

        echo "Installed versions: ${versions}"

        echo -n "Symlink: "
        readlink /usr/bin/php

        glo_retstate=0
}

#
#
#
phermin_task_use()
{
        local version=${1}
        sudo rm /usr/bin/php
        sudo ln -s "${glo_phermin_builds_path}/${version}/bin/php" /usr/bin/php
        php --version

        phermin_echo "PHP version changed to ${version}."

        glo_retstate=0
}

#
#
#
phermin_task_use_reset()
{
        sudo rm /usr/bin/php
        sudo ln -s /etc/alternatives/php /usr/bin/php
        php --version

        phermin_echo "PHP version reset."

        glo_retstate=0
}



mkdir -p "${glo_phermin_path}" || exit 1
mkdir -p "${glo_phermin_builds_path}" || exit 1

task="help"

if [ "$#" -ne "0" ];
then
        task=${1}
fi

case ${task} in
        "help")
                phermin_task_help
                ;;
        "install")
                version=${2:?"missing version"}
                phermin_task_install ${version}
                ;;
        "purge")
                phermin_task_purge
                ;;
        "status")
                phermin_task_status
                ;;
        "use")
                version=${2:?"missing version"}
                phermin_task_use ${version}
                ;;
        "use-reset")
                phermin_task_use_reset
                ;;
        "version")
                phermin_task_version
                ;;
        *)
                phermin_echo "Unknown task \"${task}\". See  \$ phermin help  for list of tasks."
                phermin_echo "Exiting."
                glo_retstate=1
                ;;
esac

exit ${glo_retstate}