#!/bin/bash
###############################################################################
#                                                                             #
# IPFire.org - A linux based firewall                                         #
# Copyright (C) 2007-2011  IPFire Team  <info@ipfire.org>                     #
#                                                                             #
# This program is free software: you can redistribute it and/or modify        #
# it under the terms of the GNU General Public License as published by        #
# the Free Software Foundation, either version 3 of the License, or           #
# (at your option) any later version.                                         #
#                                                                             #
# This program is distributed in the hope that it will be useful,             #
# but WITHOUT ANY WARRANTY; without even the implied warranty of              #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
# GNU General Public License for more details.                                #
#                                                                             #
# You should have received a copy of the GNU General Public License           #
# along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
#                                                                             #
###############################################################################
###############################################################################
#
# Beautifying variables & presentation & input output interface
#
###############################################################################

## Screen Dimentions
# Find current screen size
if [ -z "${COLUMNS}" ]; then
	COLUMNS=$(stty size)
	COLUMNS=${COLUMNS##* }
fi

# When using remote connections, such as a serial port, stty size returns 0
if [ "${COLUMNS}" = "0" ]; then
	COLUMNS=80
fi

## Measurements for positioning result messages
RESULT_WIDTH=4
TIME_WIDTH=8
OPT_WIDTH=6
VER_WIDTH=10
RESULT_COL=$((${COLUMNS} - $RESULT_WIDTH - 4))
TIME_COL=$((${RESULT_COL} - $TIME_WIDTH - 5))
OPT_COL=$((${TIME_COL} - $OPT_WIDTH - 5))
VER_COL=$((${OPT_COL} - $VER_WIDTH - 5))

## Set Cursur Position Commands, used via echo -e
SET_RESULT_COL="\\033[${RESULT_COL}G"
SET_TIME_COL="\\033[${TIME_COL}G"
SET_OPT_COL="\\033[${OPT_COL}G"
SET_VER_COL="\\033[${VER_COL}G"

# Define color for messages
BOLD="\\033[1;39m"
DONE="\\033[1;32m"
SKIP="\\033[1;34m"
WARN="\\033[1;35m"
FAIL="\\033[1;31m"
NORMAL="\\033[0;39m"

evaluate() {
	if [ "$?" -eq "0" ]; then
		beautify message DONE
	else
		EXITCODE=$1
		shift 1
		beautify message FAIL
		$*
		if [ $EXITCODE -ne "0" ]; then
			exit $EXITCODE
		fi
	fi
}

position_cursor()
{
	# ARG1=starting position on screen
	# ARG2=string to be printed
	# ARG3=offset, negative for left movement, positive for right movement, relative to ARG1
	# For example if your starting position is column 50 and you want to print Hello three columns to the right
	# of your starting position, your call will look like this:
	# position_cursor 50 "Hello" 3 (you'll get the string Hello at position 53 (= 50 + 3)
	# If on the other hand you want your string "Hello" to end three columns to the left of position 50,
	# your call will look like this:
	# position_cursor 50 "Hello" -3 (you'll get the string Hello at position 42 (= 50 - 5 -3)
	# If you want to start printing at the exact starting location, use offset 0

	START=$1
	STRING=$2
	OFFSET=$3

	STRING_LENGTH=${#STRING}

	if [ ${OFFSET} -lt 0 ]; then
		COL=$((${START} + ${OFFSET} - ${STRING_LENGTH}))
	else
		COL=$((${START} + ${OFFSET}))
	fi

	SET_COL="\\033[${COL}G"

	echo $SET_COL
} # End of position_cursor()


beautify()
{
	# Commands: build_stage, make_pkg, message, result
	case "$1" in
		message)
			case "$2" in
				DONE)
					echo -ne "${SET_RESULT_COL}[${DONE} DONE ${NORMAL}]\n"
					;;
				WARN)
					echo -ne "${WARN}${3}${NORMAL}${SET_RESULT_COL}[${WARN} WARN ${NORMAL}]\n"
					;;	
				FAIL)
					echo -ne "${SET_RESULT_COL}[${FAIL} FAIL ${NORMAL}]\n"
					;;
				SKIP)
					echo -ne "${SET_RESULT_COL}[${SKIP} SKIP ${NORMAL}]\n"
					;;
			esac
			;;
		build_stage)
			MESSAGE=$2
			if [ "$STAGE_TIME_START" ]; then
				LAST_STAGE_TIME=$[ `date +%s` - $STAGE_TIME_START ]
			fi
			STAGE_TIME_START=`date +%s`
			echo -ne "${BOLD}*** ${MESSAGE}${NORMAL}"
			if [ "$LAST_STAGE_TIME" ]; then
				echo -ne "${DONE} (Last stage took $LAST_STAGE_TIME secs)${NORMAL}"
			fi
			echo -ne "${BOLD}${SET_VER_COL}      version${SET_OPT_COL} options${SET_TIME_COL} time (sec)${SET_RESULT_COL} status${NORMAL}\n"
			;;
		build_start)
			BUILD_TIME_START=`date +%s`
			;;
		build_end)
			BUILD_TIME_END=`date +%s`
			seconds=$[ $BUILD_TIME_END - $BUILD_TIME_START ]
			hours=$((seconds / 3600))
			seconds=$((seconds % 3600))
			minutes=$((seconds / 60))
			seconds=$((seconds % 60))

			echo -ne "${DONE}***Build is finished now and took $hours hour(s) $minutes minute(s) $seconds second(s)!${NORMAL}\n"
			;;
		make_pkg)
			echo "$2" | while read PKG_VER PROGRAM OPTIONS
			do
				SET_VER_COL_REAL=`position_cursor $OPT_COL $PKG_VER -3`

				if [ "$OPTIONS" == "" ]; then
					echo -ne "${PROGRAM}${SET_VER_COL}[ ${BOLD}${SET_VER_COL_REAL}${PKG_VER}"
					echo -ne "${NORMAL} ]${SET_RESULT_COL}"
				else
					echo -ne "${PROGRAM}${SET_VER_COL}[ ${BOLD}${SET_VER_COL_REAL}${PKG_VER}"
					echo -ne "${NORMAL} ]${SET_OPT_COL}[ ${BOLD}${OPTIONS}"
					echo -ne "${NORMAL} ]${SET_RESULT_COL}"
				fi
			done
			;;
		result)
			RESULT=$2

			if [ ! $3 ]; then
				PKG_TIME=0
			else
				PKG_TIME=$3
			fi

			SET_TIME_COL_REAL=`position_cursor $RESULT_COL $PKG_TIME -3`
			case "$RESULT" in
				DONE)
					echo -ne "${SET_TIME_COL}[ ${BOLD}${SET_TIME_COL_REAL}$PKG_TIME${NORMAL} ]"
					echo -ne "${SET_RESULT_COL}[${DONE} DONE ${NORMAL}]\n"
					;;
				FAIL)
					echo -ne "${SET_TIME_COL}[ ${BOLD}${SET_TIME_COL_REAL}$PKG_TIME${NORMAL} ]"
					echo -ne "${SET_RESULT_COL}[${FAIL} FAIL ${NORMAL}]\n"
					;;
				SKIP)
					echo -ne "${SET_RESULT_COL}[${SKIP} SKIP ${NORMAL}]\n"
					;;
			esac
			;;
	esac
} # End of beautify()


get_pkg_ver()
{
	PKG_VER=`grep -E "^VER |^VER=|^VER	" $1 | awk '{print $3}'`

	if [ -z $PKG_VER ]; then
		PKG_VER=`grep "Exp " $1 | awk '{print $4}'`
	fi
	if [ -z $PKG_VER ]; then
		PKG_VER="?"
	fi
	if [ ${#PKG_VER} -gt $VER_WIDTH ]; then
		# If a package version number is greater than $VER_WIDTH, we keep the first 4 characters
		# and replace enough characters to fit the resulting string on the screen.  We'll replace
		# the extra character with .. (two dots).  That's why the "+ 2" in the formula below.
		# Example: if we have a 21-long version number that we want to fit into a 10-long space,
		# we have to remove 11 characters.  But if we replace 11 characters with 2 characters, we'll
		# end up with a 12-character long string.  That's why we replace 12 characters with ..
		REMOVE=`expr substr "$PKG_VER" 4 $[ ${#PKG_VER} - $VER_WIDTH + 2 ]`
		PKG_VER=`echo ${PKG_VER/$REMOVE/..}`
	fi

	echo "$PKG_VER"
} # End of get_pkg_ver()

if [ 'x86_64' = $MACHINE -o 'i686' = $MACHINE -o 'i586' = $MACHINE ]; then
	echo "`date -u '+%b %e %T'`: Machine is iX86 (or equivalent)" >> $LOGFILE
	MACHINE=i586
	BUILDTARGET=i586-pc-linux-gnu
	CFLAGS="-O2 -march=i586 -pipe -fomit-frame-pointer"
	CXXFLAGS="-O2 -march=i586 -pipe -fomit-frame-pointer"
	C2FLAGS="-O2 -march=i586 -mtune=i586 -pipe -fomit-frame-pointer"
	CXX2FLAGS="-O2 -march=i586 -mtune=i586 -pipe -fomit-frame-pointer"
elif [ 'armv5tejl' = $MACHINE -o 'armv5tel' = $MACHINE -o 'armv6l' = $MACHINE -o 'armv7l' = $MACHINE ]; then
	echo "`date -u '+%b %e %T'`: Machine is ARM (or equivalent)" >> $LOGFILE
	MACHINE=armv5tel
	MACHINE_TYPE=arm
	BUILDTARGET=${MACHINE}-unknown-linux-gnueabi
	CFLAGS="-O2 -march=armv5te -mfloat-abi=soft -fomit-frame-pointer -pipe"
	CXXFLAGS="$CFLAGS"
	C2FLAGS="$CFLAGS"
	CXX2FLAGS="$CXXFLAGS"
else
	echo "`date -u '+%b %e %T'`: Can't determine your architecture - $MACHINE"
	exit 1
fi

# Define immediately
stdumount() {
	umount $BASEDIR/build/sys			2>/dev/null;
	umount $BASEDIR/build/dev/shm		2>/dev/null;
	umount $BASEDIR/build/dev/pts		2>/dev/null;
	umount $BASEDIR/build/dev			2>/dev/null;
	umount $BASEDIR/build/proc			2>/dev/null;
	umount $BASEDIR/build/install/mnt		2>/dev/null;
	umount $BASEDIR/build/usr/src/cache	2>/dev/null;
	umount $BASEDIR/build/usr/src/ccache	2>/dev/null;
	umount $BASEDIR/build/usr/src/config	2>/dev/null;
	umount $BASEDIR/build/usr/src/doc		2>/dev/null;
	umount $BASEDIR/build/usr/src/html		2>/dev/null;
	umount $BASEDIR/build/usr/src/langs	2>/dev/null;
	umount $BASEDIR/build/usr/src/lfs		2>/dev/null;
	umount $BASEDIR/build/usr/src/log		2>/dev/null;
	umount $BASEDIR/build/usr/src/src		2>/dev/null;
}

exiterror() {
	stdumount
	for i in `seq 0 7`; do
	    if ( losetup /dev/loop${i} 2>/dev/null | grep -q "/install/images" ); then
		losetup -d /dev/loop${i} 2>/dev/null
	    fi;
	done
	echo -e "\nERROR: $*"
	echo "       Check $LOGFILE for errors if applicable"
	exit 1
}

fake_environ() {
	[ -e "${BASEDIR}/build/tools/lib/libpakfire_preload.so" ] || return

	local env="LD_PRELOAD=/tools/lib/libpakfire_preload.so"

	# Fake kernel version, because some of the packages do not compile
	# with kernel 3.0 and later.
	env="${env} UTS_RELEASE=${KVER}"

	# Fake machine version.
	env="${env} UTS_MACHINE=${MACHINE}"

	echo "${env}"
}

entershell() {
	if [ ! -e $BASEDIR/build/usr/src/lfs/ ]; then
		exiterror "No such file or directory: $BASEDIR/build/usr/src/lfs/"
	fi

	echo "Entering to a shell inside LFS chroot, go out with exit"
	$linux32 chroot $LFS /tools/bin/env -i HOME=/root TERM=$TERM PS1='\u:\w\$ ' \
		PATH=/usr/local/bin:/bin:/usr/bin:/sbin:/usr/sbin:/tools/bin \
		VERSION=$VERSION CONFIG_ROOT=$CONFIG_ROOT \
		NAME="$NAME" SNAME="$SNAME" SLOGAN="$SLOGAN" \
		CFLAGS="$CF2LAGS" CXXFLAGS="$CXX2FLAGS" \
		CCACHE_DIR=/usr/src/ccache \
		CCACHE_COMPRESS=1 \
		CCACHE_COMPILERCHECK="none" \
		KVER=$KVER \
		BUILDTARGET="$BUILDTARGET" \
		MACHINE="$MACHINE" \
		MACHINE_TYPE="$MACHINE_TYPE" \
		KGCC="ccache /usr/bin/gcc" \
		$(fake_environ) \
		/tools/bin/bash
	if [ $? -ne 0 ]; then
			beautify message FAIL
			exiterror "chroot error"
	else
		stdumount
	fi
}

############################################################################
#                                                                          #
# Necessary shell functions                                                #
#                                                                          #
############################################################################
#
# Common checking before entering the chroot and compilling
#
# Return:0 caller can continue
#	:1 skip (nothing to do)
#	or fail if no script file found
#
lfsmakecommoncheck()
{
	# Script present?
	if [ ! -f $BASEDIR/lfs/$1 ]; then
		exiterror "No such file or directory: $BASEDIR/$1"
	fi

	local PKG_VER=`get_pkg_ver $BASEDIR/lfs/$1`
	beautify make_pkg "$PKG_VER $*"

	# Check if this package is supported by our architecture.
	# If no SUP_ARCH is found, we assume the package can be built for all.
	if grep "^SUP_ARCH" ${BASEDIR}/lfs/${1} >/dev/null; then
		# Check if package supports ${MACHINE} or all architectures.
		if ! grep -E "^SUP_ARCH.*${MACHINE}|^SUP_ARCH.*all" ${BASEDIR}/lfs/${1} >/dev/null; then
			beautify result SKIP
			return 1
		fi
	fi

	# Script slipped?
	local i
	for i in $SKIP_PACKAGE_LIST
	do
		if [ "$i" == "$1" ]; then
			beautify result SKIP
			return 1;
		fi 
	done

	echo -ne "`date -u '+%b %e %T'`: Building $* " >> $LOGFILE

	cd $BASEDIR/lfs && make -s -f $* LFS_BASEDIR=$BASEDIR MACHINE=$MACHINE \
		MACHINE_TYPE="$MACHINE_TYPE" \
		MESSAGE="$1\t " download  >> $LOGFILE 2>&1
	if [ $? -ne 0 ]; then
		exiterror "Download error in $1"
	fi

	cd $BASEDIR/lfs && make -s -f $* LFS_BASEDIR=$BASEDIR MACHINE=$MACHINE \
		MACHINE_TYPE="$MACHINE_TYPE" \
		MESSAGE="$1\t md5sum" md5  >> $LOGFILE 2>&1
	if [ $? -ne 0 ]; then
		exiterror "md5sum error in $1, check file in cache or signature"
	fi

	return 0	# pass all!
} # End of lfsmakecommoncheck()

lfsmake1() {
	lfsmakecommoncheck $*
	[ $? == 1 ] && return 0

	local PKG_TIME_START=`date +%s`

	cd $BASEDIR/lfs && make -f $* 	BUILDTARGET=$BUILDTARGET \
						MACHINE=$MACHINE \
						MACHINE_TYPE=$MACHINE_TYPE \
						LFS_BASEDIR=$BASEDIR \
						ROOT=$LFS \
						KVER=$KVER \
						MAKETUNING=$MAKETUNING \
						$(fake_environ) \
						install >> $LOGFILE 2>&1
	local COMPILE_SUCCESS=$?
	local PKG_TIME_END=`date +%s`

	if [ $COMPILE_SUCCESS -ne 0 ]; then
		beautify result FAIL $[ $PKG_TIME_END - $PKG_TIME_START ]
		exiterror "Building $*";
	else
		beautify result DONE $[ $PKG_TIME_END - $PKG_TIME_START ]
	fi

	return 0
}

lfsmake2() {
	lfsmakecommoncheck $*
	[ $? == 1 ] && return 0

	local PKG_TIME_START=`date +%s`
	$linux32 chroot $LFS /tools/bin/env -i 	HOME=/root \
						TERM=$TERM PS1='\u:\w\$ ' \
						PATH=/usr/local/bin:/bin:/usr/bin:/sbin:/usr/sbin:/tools/bin \
						VERSION=$VERSION \
						CONFIG_ROOT=$CONFIG_ROOT \
						NAME="$NAME" SNAME="$SNAME" SLOGAN="$SLOGAN" \
						CFLAGS="$C2FLAGS" CXXFLAGS="$CXX2FLAGS" \
						CCACHE_DIR=/usr/src/ccache CCACHE_COMPRESS=1 \
						CCACHE_COMPILERCHECK="none" \
						KVER=$KVER MAKETUNING=$MAKETUNING \
						BUILDTARGET="$BUILDTARGET" MACHINE="$MACHINE" \
						MACHINE_TYPE="$MACHINE_TYPE" \
						$(fake_environ) \
						/tools/bin/bash -x -c "cd /usr/src/lfs && \
						make -f $* LFS_BASEDIR=/usr/src install" >>$LOGFILE 2>&1
	local COMPILE_SUCCESS=$?
	local PKG_TIME_END=`date +%s`

	if [ $COMPILE_SUCCESS -ne 0 ]; then
		beautify result FAIL $[ $PKG_TIME_END - $PKG_TIME_START ]
		exiterror "Building $*";
	else
		beautify result DONE $[ $PKG_TIME_END - $PKG_TIME_START ]
	fi

	return 0
}

ipfiremake() {
	lfsmakecommoncheck $*
	[ $? == 1 ] && return 0

	local PKG_TIME_START=`date +%s`
	$linux32 chroot $LFS /tools/bin/env -i 	HOME=/root \
						TERM=$TERM PS1='\u:\w\$ ' \
						PATH=/usr/local/bin:/bin:/usr/bin:/sbin:/usr/sbin \
						VERSION=$VERSION \
						CORE=$CORE \
						CONFIG_ROOT=$CONFIG_ROOT \
						NAME="$NAME" SNAME="$SNAME" SLOGAN="$SLOGAN" \
						CFLAGS="$C2FLAGS" CXXFLAGS="$CXX2FLAGS" \
						CCACHE_DIR=/usr/src/ccache CCACHE_COMPRESS=1 \
						CCACHE_COMPILERCHECK="none" \
						KVER=$KVER MAKETUNING=$MAKETUNING \
						BUILDTARGET="$BUILDTARGET" MACHINE="$MACHINE" \
						MACHINE_TYPE="$MACHINE_TYPE" \
						$(fake_environ) \
						/bin/bash -x -c "cd /usr/src/lfs && \
						make -f $* LFS_BASEDIR=/usr/src install" >>$LOGFILE 2>&1

	local COMPILE_SUCCESS=$?
	local PKG_TIME_END=`date +%s`

	if [ $COMPILE_SUCCESS -ne 0 ]; then
		beautify result FAIL $[ $PKG_TIME_END - $PKG_TIME_START ]
		exiterror "Building $*";
	else
		beautify result DONE $[ $PKG_TIME_END - $PKG_TIME_START ]
	fi
	return 0
}

ipfiredist() {
	lfsmakecommoncheck $*
	[ $? == 1 ] && return 0
	
	local PKG_TIME_START=`date +%s`
	chroot $LFS /tools/bin/env -i 	HOME=/root \
					TERM=$TERM PS1='\u:\w\$ ' \
					PATH=/usr/local/bin:/bin:/usr/bin:/sbin:/usr/sbin \
					VERSION=$VERSION \
					CONFIG_ROOT=$CONFIG_ROOT \
					NAME="$NAME" SNAME="$SNAME" SLOGAN="$SLOGAN" \
					CFLAGS="$C2FLAGS" CXXFLAGS="$CXX2FLAGS" \
					CCACHE_DIR=/usr/src/ccache CCACHE_COMPRESS=1 \
					CCACHE_COMPILERCHECK="none" \
					KVER=$KVER \
					BUILDTARGET="$BUILDTARGET" MACHINE="$MACHINE" \
					MACHINE_TYPE="$MACHINE_TYPE" \
					$(fake_environ) \
					/bin/bash -x -c "cd /usr/src/lfs && \
					make -f $1 LFS_BASEDIR=/usr/src dist" >>$LOGFILE 2>&1

	local COMPILE_SUCCESS=$?
	local PKG_TIME_END=`date +%s`

	if [ $COMPILE_SUCCESS -ne 0 ]; then
		beautify result FAIL $[ $PKG_TIME_END - $PKG_TIME_START ]
		exiterror "Packaging $*";
	else
		beautify result DONE $[ $PKG_TIME_END - $PKG_TIME_START ]
	fi
	return 0
}

installmake() {
	lfsmakecommoncheck $*
	[ $? == 1 ] && return 0

	local PKG_TIME_START=`date +%s`
	$linux32 chroot $LFS /tools/bin/env -i 	HOME=/root \
						TERM=$TERM PS1='\u:\w\$ ' \
						PATH=/opt/i586-uClibc/i586-linux-uclibc/bin:/opt/i586-uClibc/bin:/usr/local/bin:/bin:/usr/bin:/sbin:/usr/sbin \
						VERSION=$VERSION \
						CONFIG_ROOT=$CONFIG_ROOT \
						LFS_PASS="install" \
						NAME="$NAME" SNAME="$SNAME" SLOGAN="$SLOGAN" \
						CFLAGS="-Os" CXXFLAGS="-Os" \
						CCACHE_DIR=/usr/src/ccache CCACHE_COMPRESS=1 CCACHE_HASHDIR=1 \
						KVER=$KVER \
						BUILDTARGET="$BUILDTARGET" MACHINE="$MACHINE" \
						MACHINE_TYPE="$MACHINE_TYPE" \
		    /bin/bash -x -c "cd /usr/src/lfs && \
		    make -f $* LFS_BASEDIR=/usr/src install" >>$LOGFILE 2>&1

	local COMPILE_SUCCESS=$?
	local PKG_TIME_END=`date +%s`

	if [ $COMPILE_SUCCESS -ne 0 ]; then
		beautify result FAIL $[ $PKG_TIME_END - $PKG_TIME_START ]
		exiterror "Building $*";
	else
		beautify result DONE $[ $PKG_TIME_END - $PKG_TIME_START ]
	fi
	return 0
}

update_langs() {
		echo -ne "Checking the translations for missing or obsolete strings..."
		chmod 755 $BASEDIR/tools/{check_strings.pl,sort_strings.pl,check_langs.sh}
		$BASEDIR/tools/sort_strings.pl en
		$BASEDIR/tools/sort_strings.pl de
		$BASEDIR/tools/sort_strings.pl fr
		$BASEDIR/tools/sort_strings.pl es
		$BASEDIR/tools/sort_strings.pl pl
		$BASEDIR/tools/sort_strings.pl ru
		$BASEDIR/tools/check_strings.pl en > $BASEDIR/doc/language_issues.en
		$BASEDIR/tools/check_strings.pl de > $BASEDIR/doc/language_issues.de
		$BASEDIR/tools/check_strings.pl fr > $BASEDIR/doc/language_issues.fr
		$BASEDIR/tools/check_strings.pl es > $BASEDIR/doc/language_issues.es
		$BASEDIR/tools/check_strings.pl es > $BASEDIR/doc/language_issues.pl
		$BASEDIR/tools/check_strings.pl ru > $BASEDIR/doc/language_issues.ru
		$BASEDIR/tools/check_langs.sh > $BASEDIR/doc/language_missings
		beautify message DONE
}