environment

#!/usr/bin/env bash

AUTHOR="Artem Teleshev <artem.teleshev@gmail.com>"
VERSION="1.0"

SCRIPT_DIR_ETC=$SCRIPT_DIR/etc
VERSION_FILE=$SCRIPT_DIR_ETC/version
DOMAIN_FILE=$SCRIPT_DIR_ETC/domain
INSTALLATION_DIR=/usr/local/lib

PHP_NAME=php
PHP_VERSION=$(cat $VERSION_FILE)
PHP_FULL_NAME=$PHP_NAME-$PHP_VERSION
# If you wont to use PHP snaps:
# PHP_FULL_NAME=$PHP_NAME$PHP_VERSION

DIR=$INSTALLATION_DIR/$PHP_NAME$PHP_VERSION
DIR_SRC=$DIR/src

PHP_DIR=$DIR_SRC/$PHP_FULL_NAME
PHP_ARCHIVE_TYPE=tar.bz2
PHP_ARCHIVE_NAME=$PHP_FULL_NAME.$PHP_ARCHIVE_TYPE

DOWNLOAD_HOST=$(cat $DOMAIN_FILE)
DOWNLOAD_URL="http://$DOWNLOAD_HOST/distributions/$PHP_ARCHIVE_NAME"
# If you wont to use PHP snaps:
# DOWNLOAD_URL="http://snaps.php.net/php5.4-201312170830.tar.bz2"

PREFIX=$DIR
EPREFIX=$PREFIX

PHP=$EPREFIX/bin/php
PHPFPM=$EPREFIX/sbin/php-fpm

PECL=$EPREFIX/bin/pecl
PEAR=$EPREFIX/bin/pear
PHPIZE=$EPREFIX/bin/phpize
PHPCONFIG=$EPREFIX/bin/php-config

PHP_INI_DIR=$PREFIX/etc
EXTENSION_INI_DIR=$PHP_INI_DIR/php

if [ -x "$PHPCONFIG" ]; then
  EXTENSION_DIR=$($PHPCONFIG --extension-dir)
fi

if [ -x "$PEAR" ]; then
  PEAR_DOWNLOAD_DIR=$($PEAR config-get download_dir)
fi

PECL_DOWNLOAD_URL="https://pecl.php.net/get"
PECL_DOWNLOAD_ARCHIVE_TYPE="tgz"

function validate_version() { # {{{
  if [[ ! "$1" =~ ^[0-9]+(\.[0-9]+){1,2}$ ]] ; then 
    echo "Incorrect PHP version: '$1' (correct example: 5.4.28)"
    exit 1
  fi
} # }}}

# Extensions {{{
declare -A EXTENSIONS

# 1***
EXTENSIONS["pcntl:url"]="http://php.net/manual/ru/book.pcntl.php"
EXTENSIONS["pcntl:name"]=pcntl
EXTENSIONS["pcntl:type"]=extension
EXTENSIONS["pcntl:source"]=$PHP_DIR/ext/pcntl
EXTENSIONS["pcntl:configure"]=" --enable-pcntl"
EXTENSIONS["pcntl:summary"]="Process control"
EXTENSIONS["pcntl:version"]=$PHP_VERSION
EXTENSIONS["pcntl:priority"]=1000

EXTENSIONS["opcache:url"]="http://pecl.php.net/package/opcache"
EXTENSIONS["opcache:name"]=opcache
EXTENSIONS["opcache:type"]=zend_extension
EXTENSIONS["opcache:summary"]="Zend OPcache"
EXTENSIONS["opcache:version"]=$PHP_VERSION
#EXTENSIONS["opcache:version"]="7.0.5" # <= PHP5.4
EXTENSIONS["opcache:priority"]=1010

# 2***
EXTENSIONS["raphf:url"]="http://pecl.php.net/package/raphf"
EXTENSIONS["raphf:name"]=raphf
EXTENSIONS["raphf:type"]=extension
EXTENSIONS["raphf:summary"]="Resource and persistent handles factory"
EXTENSIONS["raphf:version"]="1.1.2" # PHP5.6
#EXTENSIONS["raphf:version"]="2.0.0" # PHP7
EXTENSIONS["raphf:priority"]=2000

EXTENSIONS["propro:url"]="http://pecl.php.net/package/propro"
EXTENSIONS["propro:name"]=propro
EXTENSIONS["propro:type"]=extension
EXTENSIONS["propro:summary"]="Property proxy"
EXTENSIONS["propro:version"]="1.0.2" # PHP5.6
#EXTENSIONS["propro:version"]="2.0.1" # PHP7
EXTENSIONS["propro:priority"]=2010

# 3***
EXTENSIONS["http:url"]="http://pecl.php.net/package/pecl_http"
EXTENSIONS["http:name"]=pecl_http
EXTENSIONS["http:type"]=extension
EXTENSIONS["http:summary"]="Extended HTTP Support"
EXTENSIONS["http:version"]="2.5.6" # PHP5.6
#EXTENSIONS["http:version"]="3.0.1" # PHP7
#EXTENSIONS["http:version"]="1.7.6" # sf-1.4
EXTENSIONS["http:priority"]=3000

EXTENSIONS["pthreads:url"]="http://pecl.php.net/package/pthreads"
EXTENSIONS["pthreads:name"]=pthreads
EXTENSIONS["pthreads:type"]=extension
EXTENSIONS["pthreads:summary"]="Threading API"
EXTENSIONS["pthreads:version"]="2.0.10" # PHP5.6
#EXTENSIONS["pthreads:version"]="3.1.6" # PHP7
EXTENSIONS["pthreads:priority"]=3010

# 4***
EXTENSIONS["gearman:url"]="http://pecl.php.net/package/gearman"
EXTENSIONS["gearman:name"]=gearman
EXTENSIONS["gearman:type"]=extension
EXTENSIONS["gearman:summary"]="PHP wrapper to libgearman"
EXTENSIONS["gearman:version"]="1.1.2"
EXTENSIONS["gearman:priority"]=4000

EXTENSIONS["memcached:url"]="http://pecl.php.net/package/memcached"
EXTENSIONS["memcached:name"]=memcached
EXTENSIONS["memcached:type"]=extension
EXTENSIONS["memcached:configure"]=" --disable-memcached-sasl"
EXTENSIONS["memcached:summary"]="Interfacing with memcached via libmemcached library"
EXTENSIONS["memcached:version"]="2.2.0"
EXTENSIONS["memcached:priority"]=4010

EXTENSIONS["couchbase:url"]="http://pecl.php.net/package/couchbase"
EXTENSIONS["couchbase:name"]=couchbase
EXTENSIONS["couchbase:type"]=extension
EXTENSIONS["couchbase:summary"]="Couchbase Server PHP extension"
EXTENSIONS["couchbase:version"]="2.2.0"
EXTENSIONS["couchbase:priority"]=4020

EXTENSIONS["cassandra:url"]="http://pecl.php.net/package/cassandra"
EXTENSIONS["cassandra:name"]=cassandra
EXTENSIONS["cassandra:type"]=extension
EXTENSIONS["cassandra:summary"]="DataStax PHP Driver for Apache Cassandra"
EXTENSIONS["cassandra:version"]="1.1.0"
EXTENSIONS["cassandra:priority"]=4030

EXTENSIONS["imagick:url"]="http://pecl.php.net/package/imagick"
EXTENSIONS["imagick:name"]=imagick
EXTENSIONS["imagick:type"]=extension
EXTENSIONS["imagick:summary"]="Provides a wrapper to the ImageMagick library"
EXTENSIONS["imagick:version"]="3.4.1"
EXTENSIONS["imagick:priority"]=4030

EXTENSIONS["redis:url"]="http://pecl.php.net/package/redis"
EXTENSIONS["redis:name"]=redis
EXTENSIONS["redis:type"]=extension
EXTENSIONS["redis:summary"]="Provides a wrapper to the Redis driver"
EXTENSIONS["redis:version"]="2.2.7"
EXTENSIONS["redis:priority"]=4040

EXTENSIONS["amqp:url"]="http://pecl.php.net/package/amqp"
EXTENSIONS["amqp:name"]=amqp
EXTENSIONS["amqp:type"]=extension
EXTENSIONS["amqp:summary"]="implementation of amqp protocol"
EXTENSIONS["amqp:version"]="1.7.1"
EXTENSIONS["amqp:priority"]=4050

EXTENSIONS["ssh2:url"]="https://pecl.php.net/package/ssh2"
EXTENSIONS["ssh2:name"]=ssh2
EXTENSIONS["ssh2:type"]=extension
EXTENSIONS["ssh2:summary"]="Bindings for the libssh2 library"
EXTENSIONS["ssh2:version"]="0.13"
EXTENSIONS["ssh2:priority"]=4060

# 5***
EXTENSIONS["xdebug:url"]="http://pecl.php.net/package/xdebug"
EXTENSIONS["xdebug:name"]=xdebug
EXTENSIONS["xdebug:type"]=zend_extension
EXTENSIONS["xdebug:summary"]="Provides functions for function traces and profiling"
EXTENSIONS["xdebug:version"]="2.4.0"
EXTENSIONS["xdebug:priority"]=5000
# }}}

function prepare_php_extension() { # {{{
  EXTENSION=$1
  CUSTOM_VERSION=$2
  EXTENSION_NAME=${EXTENSIONS["$EXTENSION:name"]}
  EXTENSION_TYPE=${EXTENSIONS["$EXTENSION:type"]}
  EXTENSION_SUMMARY=${EXTENSIONS["$EXTENSION:summary"]}
  EXTENSION_VERSION=${CUSTOM_VERSION:-${EXTENSIONS["$EXTENSION:version"]}}
  EXTENSION_PRIORITY=${EXTENSIONS["$EXTENSION:priority"]}
  EXTENSION_FULL_NAME=$EXTENSION_NAME-$EXTENSION_VERSION
  
  if [ ! ${EXTENSIONS["$EXTENSION:source"]} ] ; then
    EXTENSION_SOURCE=$DIR_SRC/$EXTENSION_FULL_NAME
  else
    EXTENSION_SOURCE=${EXTENSIONS["$EXTENSION:source"]}
  fi

  EXTENSION_ARCHIVE="${EXTENSION_SOURCE}.${PECL_DOWNLOAD_ARCHIVE_TYPE}"
  
  if [ ! ${EXTENSIONS["$EXTENSION:configure"]} ] ; then
    EXTENSION_CONGIFURE=""
  else
    EXTENSION_CONGIFURE=${EXTENSIONS["$EXTENSION:configure"]}
  fi

  EXTENSION_SO=$EXTENSION.so
  EXTENSION_PATH_TO_SO=$EXTENSION_DIR/$EXTENSION_SO

  EXTENSION_INI=$EXTENSION_PRIORITY-$EXTENSION.ini
  EXTENSION_PATH_TO_INI=$EXTENSION_INI_DIR/$EXTENSION_INI
} # }}}

function check_php_extension() { # {{{
  if [ ! $EXTENSION ] ; then
    echo "You need prepare php extension"
    exit 1
  fi

  if [ -f $EXTENSION_PATH_TO_INI ] ; then
    echo "The '$EXTENSION' PHP extension is already installed in PHP $PHP_VERSION"
    echo -n "Reinstall '$EXTENSION' extension? (yes/[no]): "
    while read INPUTTED_CONFIRMATION
    do
      if [ "$INPUTTED_CONFIRMATION" = "yes" ] ; then
        echo -n "Started to delete '$EXTENSION' extension for PHP $PHP_VERSION ... "
        rm $EXTENSION_PATH_TO_INI || echo "[ Error ]" && echo "[ OK ]"

        if [ -f $EXTENSION_PATH_TO_SO ] ; then
          rm $EXTENSION_PATH_TO_SO || exit 1
        fi;
      else
        echo "Cancel installation '$EXTENSION' extension for PHP $PHP_VERSION ... [ OK ]"
        exit 1
      fi
      break
    done
  fi;

  if [ ! -d $EXTENSION_INI_DIR ] ; then
    mkdir -p $EXTENSION_INI_DIR || exit 1
  fi;
} # }}}

function install_php_extension() { # {{{
  echo "Started installation: '$EXTENSION_NAME' ($EXTENSION_VERSION)"

  cd $EXTENSION_SOURCE || exit 1 && echo "Change current directory to '$EXTENSION_SOURCE'"

  $PHPIZE || exit 1

  # configure
  #  echo "./configure --prefix=$PREFIX --exec-prefix=$EPREFIX --enable-shared=PKGS --with-php-config=$PHPCONFIG $EXTENSION_CONGIFURE"
  ./configure --prefix=$PREFIX --exec-prefix=$EPREFIX --enable-shared=PKGS --with-php-config=$PHPCONFIG $EXTENSION_CONGIFURE || exit 1

  # install
  make install || exit 1
} # }}}

function enable_php_extension() { # {{{
  if [ ! -d ${EXTENSION_INI_DIR} ] ; then
    mkdir -p ${EXTENSION_INI_DIR} || exit 1
  fi;

  if [ ! -f ${EXTENSION_PATH_TO_INI} ] ; then
    touch ${EXTENSION_PATH_TO_INI} || exit 1
  fi;

  echo "${EXTENSION_TYPE}=${EXTENSION_PATH_TO_SO}" > ${EXTENSION_PATH_TO_INI} || exit 1 && echo "Save '${EXTENSION_TYPE}=${EXTENSION_PATH_TO_SO}' to '${EXTENSION_PATH_TO_INI}'"
} # }}}

# $1 - module name (mandatory); $2 - custom version (optional)
function install_php_pecl_extension() { # {{{
  prepare_php_extension $1 $2
  check_php_extension

  cd $DIR_SRC && echo "Change current directory to '$DIR_SRC'" || exit 1
  echo "Download ('${EXTENSION_FULL_NAME}'): ${PECL_DOWNLOAD_URL}/${EXTENSION_FULL_NAME}.${PECL_DOWNLOAD_ARCHIVE_TYPE} > ${EXTENSION_ARCHIVE}"
  curl -sL "${PECL_DOWNLOAD_URL}/${EXTENSION_FULL_NAME}.${PECL_DOWNLOAD_ARCHIVE_TYPE}" > "${EXTENSION_SOURCE}.${PECL_DOWNLOAD_ARCHIVE_TYPE}" || exit 2
  # $PECL download $EXTENSION_FULL_NAME || exit 2

  if [ -f $DIR_SRC/channel.xml ] ; then
    rm $DIR_SRC/channel.xml
  fi;
  
  echo "Start unzip: '${EXTENSION_ARCHIVE}'"
  if [ -f ${EXTENSION_ARCHIVE} ]; then
    gzip -d < ${EXTENSION_ARCHIVE} | tar -xvf - || exit 3
  elif [ -f $EXTENSION_SOURCE.tar ]; then
    tar -xvf $EXTENSION_SOURCE.tar || exit 4
  else
    echo "Incorrect ${EXTENSION_SOURCE} file extension, allowed: tgz, tar"
    exit 5
  fi

  if [ -f $DIR_SRC/package.xml ] ; then
    rm $DIR_SRC/package.xml
  fi;

  install_php_extension
  enable_php_extension
} # }}}

function install_php_source_extension() { # {{{
  prepare_php_extension $1
  check_php_extension
  install_php_extension
  enable_php_extension
} # }}}

function create_symlink_to() { # {{{
  SYMLINK_NAME=$1
  SYMLINK_FROM=$2
  SYMLINK_TO=$3
  SYMLINK=$SYMLINK_FROM/$SYMLINK_NAME

  echo " "
  echo "Trying to create symlink '$SYMLINK' in $SYMLINK_TO";
  echo "-----"

  if [ -e $SYMLINK ] ; then
    if [ -d $SYMLINK_TO ] ; then
      echo -n " Trying to change current directory to: '$SYMLINK_TO' ... "
      cd $SYMLINK_TO || echo "[ Error ]" && echo "[ OK ]"

      if [ "$(pwd)" = "$SYMLINK_TO" ] ; then
        if [ -L $SYMLINK_NAME ] || [ -e $SYMLINK_NAME ] ; then
          echo -n " Trying to delete '$SYMLINK_NAME' ... "
          $EXECUTE_FROM_ROOT rm $SYMLINK_NAME || echo "[ Error ]" && echo "[ OK ]"
        fi

        echo -n " Trying to create symlink to: '$SYMLINK' ... "
        $EXECUTE_FROM_ROOT ln -s $SYMLINK || echo "[ Error ]" && echo "[ OK ]"
      else
        echo  " [ Error ] Can't change current directory to: '$SYMLINK_TO'"
      fi

    else
      echo  " [ Error ] Can't find directory: '$SYMLINK_TO'"
    fi
  else
    echo  " [ Error ] '$SYMLINK' doesn't exist"
  fi

  echo " "
} # }}}