configure

#!/bin/bash

BUILD_RPM=1
BUILD_DPKG=1
BUILD_SSL_098=1
BUILD_SSL_100=1
BUILD_SSL_110=1
BUILD_SSL_SYSTEM=0
BUILD_DEBUG=0
BUILD_OMS=
DEBUG_FLAGS=""
DSC_MODULES_PATH="/opt/microsoft/dsc/modules"
DSC_SCRIPT_PATH="/opt/microsoft/dsc/Scripts"
DSC_PATH_MODIFIER="/dsc"

for opt
do
    
    arg=`expr "x$opt" : 'x[^=]*=\(.*\)'`
    
    case $opt in
	-h | --help)
	    help=1
	    ;;
	--enable-debug)
	    if [ "$build_type" = "Bullseye" ]; then
		echo "Cannot build debug if Bullseye is enabled"
		exit 1
	    fi
	    BUILD_DEBUG=1
	    DEBUG_FLAGS="--enable-debug"
	    ;;
	
	
	--no-rpm)
	    BUILD_RPM=0
	    ;;
	--no-dpkg)
	    BUILD_DPKG=0
	    ;;
	
	--local)
	    if [ "$BUILD_OMS" = "BUILD_OMS" ]; then
		echo "Error: options --oms and --local conflict."
		exit 1
	    fi
	    BUILD_LOCAL=1
	    DSC_MODULES_PATH="\$(CONFIG_DATADIR)/dsc/modules"
	    DSC_SCRIPT_PATH="\$(CONFIG_DATADIR)/dsc/Scripts"
	    ;;
	
	--no-ssl-098)
	    BUILD_SSL_098=0
	    ;;
	--no-ssl-100)
	    BUILD_SSL_100=0
		;;
	--no-ssl-110)
	    BUILD_SSL_110=0
	    ;;
	--oms)
	    if [ "$BUILD_LOCAL" = "1" ]; then
		echo "Error: options --oms and --local conflict."
		exit 1
	    fi
	    BUILD_OMS=BUILD_OMS
	    DSC_MODULES_PATH="/opt/microsoft/omsconfig/modules"
	    DSC_SCRIPT_PATH="/opt/microsoft/omsconfig/Scripts"
	    DSC_PATH_MODIFIER="/omsconfig"
	    ;;
	
	*)
	    echo "configure: invalid option '$opt'"
	    echo "Try configure --help' for more information."
	    exit 1
	    ;;
	
    esac
    
done

if [ "$help" = "1" ]; then
    
    cat<<EOF

Usage: ./configure [OPTIONS]

OVERVIEW:

This script configures DSC for Linux for building.

OPTIONS:
    -h, --help                  Print this help message.
    --enable-debug              Perform a debug build.

    --no-rpm                    Do not build an RPM package
    --no-dpkg                   Do not build a DEB package
    --no-ssl-098                Do not build for OpenSSL 0.9.8x
    --no-ssl-100                Do not build for OpenSSL 1.0.x
	--no-ssl-110                Do not build for OpenSSL 1.1.x

    --local                     Build without packages and for the OpenSSL installed to the system.
EOF
    exit 0
fi


pkgconfig=`which pkg-config`

if [ -d "/usr/local_ssl_0.9.8" ] || [ -d "/usr/local_ssl_1.0.0" ] || [ -d "/usr/local_ssl_1.1.0" ]; then
    if [ -d "/usr/local_ssl_0.9.8" ]; then
        if [ "`uname -m`" == "x86_64" ]; then
            openssl098_libdir=/usr/local_ssl_0.9.8/lib
        else
            openssl098_libdir=/usr/local_ssl_0.9.8/lib
        fi
        openssl098_cflags=`PKG_CONFIG_PATH=$openssl098_libdir/pkgconfig $pkgconfig --cflags openssl`
        openssl098_libs=`PKG_CONFIG_PATH=$openssl098_libdir/pkgconfig $pkgconfig --libs openssl`
    else
        echo -e "\e[33mYellow SSL version 0.9.8 is not found at path /usr/local_ssl_0.9.8. Skipping build for SSL 0.9.8.\e[0m"
        BUILD_SSL_098=0
    fi
    if [ -d "/usr/local_ssl_1.0.0" ]; then
        if [ "`uname -m`" == "x86_64" ]; then
            openssl100_libdir=/usr/local_ssl_1.0.0/lib64
        else
            openssl100_libdir=/usr/local_ssl_1.0.0/lib
        fi
        openssl100_cflags=`PKG_CONFIG_PATH=$openssl100_libdir/pkgconfig $pkgconfig --cflags openssl`
        openssl100_libs=`PKG_CONFIG_PATH=$openssl100_libdir/pkgconfig $pkgconfig --libs openssl`
    else
        echo -e "\e[33mYellow SSL version 1.0.0 is not found at path /usr/local_ssl_1.0.0. Skipping build for SSL 1.0.0.\e[0m"
        BUILD_SSL_100=0
    fi
    if [ -d "/usr/local_ssl_1.1.0" ]; then
        if [ "`uname -m`" == "x86_64" ]; then
            openssl110_libdir=/usr/local_ssl_1.1.0/lib
        fi
        openssl110_cflags=`PKG_CONFIG_PATH=$openssl110_libdir/pkgconfig $pkgconfig --cflags openssl`
        openssl110_libs=`PKG_CONFIG_PATH=$openssl110_libdir/pkgconfig $pkgconfig --libs openssl`
    else
        echo -e "\e[33mYellow SSL version 1.1.0 is not found at path /usr/local_ssl_1.1.0. Skipping build for SSL 1.1.0.\e[0m"
        BUILD_SSL_110=0
    fi
fi

cat <<EOF > config.mak
BUILD_RPM=$BUILD_RPM
BUILD_DPKG=$BUILD_DPKG
BUILD_SSL_098=$BUILD_SSL_098
BUILD_SSL_100=$BUILD_SSL_100
BUILD_SSL_110=$BUILD_SSL_110
BUILD_LOCAL=$BUILD_LOCAL
BUILD_OMS=$BUILD_OMS
DSC_MODULES_PATH=$DSC_MODULES_PATH
DSC_SCRIPT_PATH=$DSC_SCRIPT_PATH

BUILD_DEBUG=$BUILD_DEBUG
DEBUG_FLAGS=$DEBUG_FLAGS
# DSC cannot build with -Werror
ENABLE_WERROR=0

openssl098_cflags=$openssl098_cflags
openssl098_libs=$openssl098_libs
openssl098_libdir=$openssl098_libdir
openssl100_cflags=$openssl100_cflags
openssl100_libs=$openssl100_libs
openssl100_libdir=$openssl100_libdir
openssl110_cflags=$openssl110_cflags
openssl110_libs=$openssl110_libs
openssl110_libdir=$openssl110_libdir

EOF

cat <<EOF > dsc_config.h
#pragma once
#include "config.h"

#define DSC_ETC_PATH CONFIG_SYSCONFDIR "$DSC_PATH_MODIFIER"

EOF

echo "Configured DSC"