path: root/scripts/makepkg

#!/bin/bash
# 
#   makepkg
#  
#   Copyright (c) 2002-2006 by Judd Vinet <jvinet@zeroflux.org>
#   Copyright (c) 2005 by Aurelien Foret <orelien@chez.com>
#   Copyright (c) 2006 by Miklos Vajna <vmiklos@frugalware.org>
#   Copyright (c) 2005 by Christian Hamar <krics@linuxforum.hu>
#   Copyright (c) 2006 by Alex Smith <alex@alex-smith.me.uk>
#   Copyright (c) 2006 by Andras Voroskoi <voroskoi@frugalware.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 2 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, write to the Free Software
#   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 
#   USA.
#

myver='3.0.0'
startdir=`pwd`
PKGDEST=$startdir

BUILDSCRIPT="PKGBUILD"
PKGEXT="pkg.tar.gz"

source "/etc/abs/abs.conf"
SRCROOT=$ABSROOT

# Options
CLEANUP=0
CLEANCACHE=0
DEP_BIN=0
DEP_SRC=0
DEP_SUDO=0
FORCE=0
GENINTEG=0
INSTALL=0
DOWNLOAD=""
NOBUILD=0
NODEPS=0
NOEXTRACT=0
RMDEPS=0
LOGGING=0

PACMAN_OPTS=

INFAKEROOT=
if [ "$1" = "-F" ]; then
	INFAKEROOT=1
	shift
fi

### SUBROUTINES ###

plain() {
	if [ "$USE_COLOR" = "Y" -o "$USE_COLOR" = "y" ]; then
		echo -e "    \033[1;1m$1\033[1;0m" >&2
	else
		echo "    $1" >&2
	fi
}
msg() {
	if [ "$USE_COLOR" = "Y" -o "$USE_COLOR" = "y" ]; then
		echo -e "\033[1;32m==>\033[1;0m \033[1;1m$1\033[1;0m" >&2
	else
		echo "==> $1" >&2
	fi
}

msg2() {
        if [ "$USE_COLOR" = "Y" -o "$USE_COLOR" = "y" ]; then
                echo -e "   \033[1;34m->\033[1;0m \033[1;1m$1\033[1;0m" >&2
        else
                echo "   -> $1" >&2
        fi
}

warning() {
	if [ "$USE_COLOR" = "Y" -o "$USE_COLOR" = "y" ]; then
		echo -e "\033[1;33m==> WARNING:\033[1;0m \033[1;1m$1\033[1;0m" >&2
	else
		echo "==> WARNING: $1" >&2
	fi
}
error() {
	if [ "$USE_COLOR" = "Y" -o "$USE_COLOR" = "y" ]; then
		echo -e "\033[1;31m==> ERROR:\033[1;0m \033[1;1m$1\033[1;0m" >&2
	else
		echo "==> ERROR: $1" >&2
	fi
}

strip_url() {
	echo "$1" | sed 's|^.*://.*/||g'
}

check_option() {
	local i
	for i in ${options[@]}; do
		local uc=`echo $i | tr [:lower:] [:upper:]`
		local lc=`echo $i | tr [:upper:] [:lower:]`
		if [ "$uc" = "$1" -o "$lc" = "$1" ]; then
			echo $1
			return
		fi
	done
}

in_array() {
    needle=$1
    shift 1
    [ -z "$1" ] && return 1
    for i in $*; do
        [ "$i" == "$needle" ] && return 0
    done
    return 1
}

checkdeps() {
	local missdep=""
	local deplist=""

	[ $# -gt 0 ] || return

	missdep=`pacman $PACMAN_OPTS -T $*`
	ret=$?
	if [ "$ret" != "0" ]; then
		if [ "$ret" = "127" ]; then
			msg "Missing Dependencies:"
			msg ""
			nl=0
			for dep in $missdep; do
				echo -ne "$dep " >&2
				if [ "$nl" = "1" ]; then
					nl=0
					echo -ne "\n" >&2
					# add this dep to the list
					depname=`echo $dep | sed 's|=.*$||' | sed 's|>.*$||' | sed 's|<.*$||'`
					deplist="$deplist $depname"
					continue
				fi
				nl=1
			done
			msg ""
		else
			error "pacman returned a fatal error."
			exit 1
		fi
	fi
	echo $deplist
}

handledeps() {
	local missingdeps=0
	local deplist="$*"
	local haveperm=0
	if [ \( "`id -u`" = "0" -a "$INFAKEROOT" != "1" \) -o "$DEP_SUDO" = 1 ]; then
		haveperm=1
	fi

	if [ "$deplist" != "" -a $haveperm -eq 1 ]; then
		if [ "$DEP_BIN" = "1" ]; then
			# install missing deps from binary packages (using pacman -S)
			msg "Installing missing dependencies..."
            pacman $PACMAN_OPTS -D $deplist
			if [ "$?" = "127" ]; then
				error "Failed to install missing dependencies."
				exit 1
			fi
		elif [ "$DEP_SUDO" = "1" ]; then
			# install missing deps from binary packages (using pacman -S and sudo)
			msg "Installing missing dependencies..."
			if [ "$INFAKEROOT" = "1" ]; then
				# kinda hacky, but we need to make pacman think that we're NOT
				# in fakeroot so it will go ahead and install the dependencies.
				FAKEROOTKEY2=$FAKEROOTKEY
				unset FAKEROOTKEY
            fi
            sudo pacman $PACMAN_OPTS -D $deplist
			if [ "$?" = "127" ]; then
				error "Failed to install missing dependencies."
				exit 1
			fi
			if [ "$INFAKEROOT" = "1" ]; then
				export FAKEROOTKEY=$FAKEROOTKEY2
				unset FAKEROOTKEY2
            fi
		elif [ "$DEP_SRC" = "1" ]; then
			# install missing deps by building them from source.
			# we look for each package name in $SRCROOT and build it.
			if [ "$SRCROOT" = "" ]; then
                error "Source root cannot be found - please make sure it is specified in /etc/makepkg.conf"
				exit 1
			fi
			# TODO: handle version comparators (eg, glibc>=2.2.5)
			msg "Building missing dependencies..."
			for dep in $deplist; do
				candidates=$(find $SRCROOT -type d -name "$dep")
				if [ "$candidates" = "" ]; then
					error "Could not find \"$dep\" under $SRCROOT"
					exit 1
				fi
				success=0
				for pkgdir in $candidates; do
					if [ -f $pkgdir/$BUILDSCRIPT ]; then
						cd $pkgdir
						if [ "$RMDEPS" = "1" ]; then
							makepkg -i -c -b -r -w $PKGDEST
						else
							makepkg -i -c -b -w $PKGDEST
						fi
						if [ $? -eq 0 ]; then
							success=1
							break
						fi
					fi
				done
				if [ "$success" = "0" ]; then
					error "Failed to build \"$dep\""
					exit 1
				fi
			done
		else
			missingdeps=1
		fi
	elif [ "$deplist" != "" -a $haveperm -eq 0 ]; then
		if [ "$DEP_SRC" = "1" -o "$DEP_BIN" = "1" ]; then
			warning "Cannot auto-install missing dependencies as a normal user without sudo!"
			plain "Run makepkg as root or with -S to resolve dependencies automatically."
		fi
		missingdeps=1
	fi
	# rerun any additional sh scripts found in /etc/profile.d/
	for i in /etc/profile.d/*.sh
	do
		if [ -x $i ]; then
			. $i &>/dev/null
		fi
	done
	# some applications (eg, blackbox) will not build with some languages
	unset LC_ALL LANG

	return $missingdeps
}

usage() {
	echo "makepkg version $myver"
	echo
	echo "Usage: $0 [options]"
	echo
	echo "Options:"
	echo "  -b, --builddeps  Build missing dependencies from source"
	echo "  -B, --noccache   Do not use ccache during build"
	echo "  -c, --clean      Clean up work files after build"
	echo "  -C, --cleancache Clean up source files from the cache"
	echo "  -d, --nodeps     Skip all dependency checks"
	echo "  -e, --noextract  Do not extract source files (use existing src/ dir)"
	echo "  -f, --force      Overwrite existing package"
	echo "  -g, --geninteg   Generate integrity checks for source files"
	echo "  -h, --help       This help"
	echo "  -i, --install    Install package after successful build"
	echo "  -j <jobs>        Set MAKEFLAGS to \"-j<jobs>\" before building"
    echo "  -k, --keepdocs   Keep doc and info directories"
	echo "  -L, --log        Log package build process"
	echo "  -m, --nocolor    Disable colorized output messages"
	echo "  -n, --nostrip    Do not strip symbols from binaries/libraries"
	echo "  -o, --nobuild    Download and extract files only"
	echo "  -p <buildscript> Use an alternate build script (instead of '$BUILDSCRIPT')"
	echo "  -r, --rmdeps     Remove installed dependencies after a successful build"
	echo "  -s, --syncdeps   Install missing dependencies with pacman"
	echo "  -S, --sudosync   Install missing dependencies with pacman and sudo"
    # fix flyspray feature request #5223 - Dan McGee <dpmcgee@gmail.com>
    echo "  -t <sourcedir>   Cache source files in <sourcedir>"
	echo "  -w <destdir>     Write package to <destdir> instead of the working dir"
	echo
	echo "These options can be passed to pacman:"
	echo
	echo "  --noconfirm      Do not ask for confirmation when resolving dependencies"
	echo "  --noprogressbar  Do not show a progress bar when downloading files"
	echo
	echo "If -p is not specified, makepkg will look for '$BUILDSCRIPT'"
	echo
}

ARGLIST=$@

if [ -f /etc/makepkg.conf ]; then
    source /etc/makepkg.conf
else
    error "/etc/makepkg.conf not found. cannot continue"
    exit 1
fi

#Let's be courteous and support frugalware's extensions
[ -e /usr/lib/frugalware/fwmakepkg ] && . /usr/lib/frugalware/fwmakepkg

while [ "$#" -ne "0" ]; do
	case $1 in
# pacman
		--noconfirm)      PACMAN_OPTS="$PACMAN_OPTS --noconfirm" ;;
		--noprogressbar)  PACMAN_OPTS="$PACMAN_OPTS --noprogressbar" ;;
# makepkg
		--clean)      CLEANUP=1 ;;
		--cleancache) CLEANCACHE=1 ;;
		--syncdeps)   DEP_BIN=1 ;;
		--sudosync)   DEP_SUDO=1 ;;
		--builddeps)  DEP_SRC=1 ;;
		--noccache)   USE_CCACHE=0 ;;
		--nodeps)     NODEPS=1 ;;
		--noextract)  NOEXTRACT=1 ;;
		--install)    INSTALL=1 ;;
		--force)      FORCE=1 ;;
        --keepdocs)   KEEPDOCS=1 ;;
		--nostrip)    NOSTRIP=1 ;;
		--nobuild)    NOBUILD=1 ;;
		--nocolor)    USE_COLOR="n" ;;
		--geninteg)   GENINTEG=1 ;;
		--rmdeps)     RMDEPS=1 ;;
        --log)        LOGGING=1 ;;
		--help)
			usage
			exit 0
			;;
		--*)
			usage
			exit 1
			;;
		-*)
			while getopts "bBcCdefghij:kLmnop:rsSt:w:-" opt; do
				case $opt in
					b) DEP_SRC=1 ;;
					B) USE_CCACHE=0 ;;
					c) CLEANUP=1 ;;
					C) CLEANCACHE=1 ;;
					d) NODEPS=1 ;;
					e) NOEXTRACT=1 ;;
					f) FORCE=1 ;;
					g) GENINTEG=1 ;;
					h)
						usage
						exit 0
						;;
					i) INSTALL=1 ;;
					j) export MAKEFLAGS="-j$OPTARG" ;;
                    k) KEEPDOCS=1 ;;
                    L) LOGGING=1 ;;
					m) USE_COLOR="n" ;;
					n) NOSTRIP=1 ;;
					o) NOBUILD=1 ;;
					p) BUILDSCRIPT=$OPTARG ;;
					r) RMDEPS=1 ;;
					s) DEP_BIN=1 ;;
					S) DEP_SUDO=1 ;;
					t) SRCDEST=$OPTARG ;;
					w) PKGDEST=$OPTARG ;;
					-)
						OPTIND=0
						break
						;;
					*)
						usage
						exit 1
						;;
				esac
			done
			;;
		*)
			true
			;;
	esac
	shift
done

# check for sudo
if [ "$DEP_SUDO" = "1" -a ! "`type -p sudo`" ]; then
	error "Cannot find the sudo binary! Is sudo installed?"
	exit 1
fi

# convert a (possibly) relative path to absolute
cd $PKGDEST 2>/dev/null
if [ $? -ne 0 ]; then
	error "Package destination directory does not exist or permission denied."
	exit 1
fi
PKGDEST=`pwd`
cd $OLDPWD

if [ "$CLEANCACHE" = "1" ]; then
    if [ -n "$SRCDEST" ]; then
        msg "Cleaning up source files from the cache."
        rm -rf /var/cache/pacman/src/*
        rm -rf "${SRCDEST}"/*
        exit 0
    else
        if [ "`id -u`" = "0" -a "$INFAKEROOT" != "1" ]; then
            msg "Cleaning up source files from the cache."
            rm -rf /var/cache/pacman/src/*
            exit 0
        else
            error "You must be root to clean the cache."
            exit 1
        fi
    fi
fi

unset pkgname pkgver pkgrel pkgdesc url license groups provides md5sums force
unset replaces depends conflicts backup source install build makedepends
unset options

# some applications (eg, blackbox) will not build with some languages
unset LC_ALL LANG
umask 0022

if [ ! -f $BUILDSCRIPT ]; then
	error "$BUILDSCRIPT does not exist."
	exit 1
#TODO this is an attempt at a generic way to unset all package specific
#variables in a PKGBUILD
#else
#    #this is fun.... we'll unset
#    for var in $(grep "=" $BUILDSCRIPT | sed "s|.*\(\<.*\>\)=.*|\1|g"); do
#        unset $var
#    done
fi

source $BUILDSCRIPT

# check for no-no's
if [ -z "$pkgver" ]; then
	error "pkgver is not allowed to be empty."
	exit 1
fi
if [ -z "$pkgrel" ]; then
	error "pkgrel is not allowed to be empty."
	exit 1
fi
if [ $(echo $pkgver | grep '-') ]; then
	error "pkgver is not allowed to contain hyphens."
	exit 1
fi
if [ $(echo $pkgrel | grep '-') ]; then
	error "pkgrel is not allowed to contain hyphens."
	exit 1
fi
if ! in_array $CARCH ${arch[@]}; then
	error "$pkgname is not available for the '$CARCH' architecture."
    plain "Note that many packages may need a line added to their $BUILDSCRIPT"
    plain "such as arch=('$CARCH')."
	exit 1
fi

if [ "$install" -a ! -f "$install" ]; then
	error "install scriptlet ($install) does not exist."
	exit 1
fi

if [ -f $PKGDEST/${pkgname}-${pkgver}-${pkgrel}-${CARCH}.${PKGEXT} -a "$FORCE" = "0" -a "$GENINTEG" = "0" ]; then
	if [ "$INSTALL" = "1" ]; then
		warning "a package has already been built, installing existing package."
		echo pacman $PACMAN_OPTS -U $PKGDEST/${pkgname}-${pkgver}-${pkgrel}-${CARCH}.${PKGEXT}
		pacman $PACMAN_OPTS -U $PKGDEST/${pkgname}-${pkgver}-${pkgrel}-${CARCH}.${PKGEXT}
		exit $?
	else
		error "a package has already been built.  (use -f to overwrite)"
		exit 1
	fi
fi

# Enter the fakeroot environment if necessary.  This will call the makepkg script again
# as the fake root user.  We detect this by passing a sentinel option (-F) to makepkg
if [ "`id -u`" != "0" ]; then
	if [ "$USE_FAKEROOT" = "y" -o "$USE_FAKEROOT" = "Y" ]; then
		if [ `type -p fakeroot` ]; then
			msg "Entering fakeroot environment"
			fakeroot -- $0 -F $ARGLIST
			exit $?
		else
			warning "Fakeroot is not installed.  Building as an unprivileged user"
			plain "will result in non-root ownership of the packaged files."
			plain "Install the fakeroot package to correctly build as a non-root"
			plain "user."
			plain ""
			sleep 1
		fi
	else
		warning "Running makepkg as an unprivileged user will result in non-root"		
		plain "ownership of the packaged files.  Try using the fakeroot"
		plain "environment.  (USE_FAKEROOT=y in makepkg.conf)"
		plain ""
		sleep 1
	fi
fi

msg "Making package: $pkgname $pkgver-$pkgrel (`date`)"

unset deplist makedeplist
# fix flyspray bug #5973 - Dan McGee <dpmcgee@gmail.com>
if [ `type -p pacman` -a "$NODEPS" = "0" -a "$GENINTEG" = "0" -a "$NOBUILD" = "0" ]; then
	msg "Checking Runtime Dependencies..."
	deplist=`checkdeps ${depends[@]}`
	handledeps $deplist
	if [ $? -gt 0 ]; then
		exit 1
	fi
	# check deps again to make sure they were resolved
	deplist=`checkdeps ${depends[@]}`
	if [ ! -z "$deplist" ]; then
		error "Failed to install missing dependencies."
		exit 1
	fi
	msg "Checking Buildtime Dependencies..."
	makedeplist=`checkdeps ${makedepends[@]}`
	handledeps $makedeplist
	if [ $? -gt 0 ]; then
		exit 1
	fi
elif [ "$NODEPS" = "1" -o "$GENINTEG" = "1" -o "$NOBUILD" = "1" ]; then
	warning "skipping dependency checks."
else
	warning "pacman was not found in PATH. skipping dependency checks."
fi

cd $startdir

# retrieve sources
msg "Retrieving Sources..."
mkdir -p src
cd $startdir/src
for netfile in ${source[@]}; do
	file=$(strip_url $netfile)
	if [ -f "../$file" ]; then
		msg "    Found $file in build dir"
		cp "../$file" .
	elif [ -f "$SRCDEST/$file" ]; then
		msg "    Using cached copy of $file"
		cp "$SRCDEST$file" .
	elif [ -f "/var/cache/pacman/src/$file" ]; then
		msg "    Using cached copy of $file"
		cp "/var/cache/pacman/src/$file" .
	else
		# check for a download utility
		if [ -z "$FTPAGENT" ]; then
			error "FTPAGENT is not configured. Check the /etc/makepkg.conf file."
			msg "Aborting..."
			exit 1
		fi
		ftpclient=`echo $FTPAGENT | awk {'print $1'}`
		if [ ! -x "$ftpclient" ]; then
			error "ftpclient `basename $ftpclient` is not installed."
			msg "Aborting..."
			exit 1
		fi
		proto=$(echo "$netfile" | sed 's|://.*||')
		if [ "$proto" != "ftp" -a "$proto" != "http" -a "$proto" != "https" ]; then
			error "$netfile was not found in the build directory and is not a proper URL."
			msg "Aborting..."
			exit 1
		fi
		msg "    Downloading $file"
		$FTPAGENT "$netfile" 2>&1
		if [ ! -f "$file" ]; then
			error "Failed to download $file"
			msg "Aborting..."
			exit 1
		fi
		if [ "`id -u`" = "0" -a "$INFAKEROOT" != "1" ]; then
			mkdir -p /var/cache/pacman/src && cp $file /var/cache/pacman/src
            if [ -n "$SRCDEST" ]; then
                mkdir -p $SRCDEST && cp "$file" $SRCDEST
            elif [ "`id -u`" = "0" -a "$INFAKEROOT" != "1" ]; then
                mkdir -p /var/cache/pacman/src && cp "$file" /var/cache/pacman/src
            else
                cp "$file" ..
            fi
		fi
	fi
done



if [ "$NOEXTRACT" = "1" ]; then
    warning "Skipping source extraction       -- using existing src/ tree"
    warning "Skipping source integrity checks -- using existing src/ tree"
else
    for integ in ${INTEGRITY_CHECK[@]}; do
        integ="$(echo $integ | tr A-Z a-z)"
        case "$integ" in
            md5) integrity_name="md5sum" ;;
            sha1) integrity_name="sha1sum" ;;
            sha256) integrity_name="sha256sum" ;;
            sha384) integrity_name="sha384sum" ;;
            sha512) integrity_name="sha512sum" ;;
            *) error "Invalid integrity algorithm '$integ' specified"; exit 1;;
        esac
        if [ ! $(type -p $integrity_name) ]; then
            error "Cannot find the $integrity_name program."
            exit 1
        fi

        #Generate integrity checks
        if [ "$GENINTEG" = "1" ]; then
            msg "Generating ${integrity_name}s for source files"
            plain ""
            ct=0
            newline=0
            numsrc=${#source[@]}
            for netfile in "${source[@]}"; do
                file=`strip_url "$netfile"`
                sum=$(eval "$integrity_name '$file' | cut -d' ' -f 1")
                if [ $ct -eq 0 ]; then
                    echo -n "${integrity_name}s=("
                else
                    echo -ne "\t  "
                fi
                echo -n "'$sum'"
                ct=$(($ct+1))
                if [ $ct -eq $numsrc ]; then
                    echo ')'
                else
                    echo ' \'
                    newline=0
                fi
            done
            plain ""
            exit 0
        #Validate integrity checks
        else 
            integrity_sums=($(eval echo \${${integrity_name}s[@]}))

            if [ ${#integrity_sums[@]} -eq ${#source[@]} ]; then
                msg "Validating source files with ${integrity_name}s"
                errors=0
                idx=0
                for netfile in "${source[@]}"; do
                    file=$(strip_url "$netfile")
                    echo -n "    $file ... " >&2
                    echo "${integrity_sums[$idx]}  $file" | $integrity_name -c - >/dev/null 2>&1
                    if [ $? -ne 0 ]; then
                        echo "FAILED" >&2
                        errors=1
                    else
                        echo "Passed" >&2
                    fi
                    idx=$(($idx+1))
                done
                if [ $errors -gt 0 ]; then
                    error "One or more files did not pass the validity check!"
                    exit 1
                fi
            else
                warning "Integrity checks ($INTEGRITY_CHECK) are missing or incomplete."
            fi
        fi
    done

    msg "Extracting Sources..."
    for netfile in "${source[@]}"; do
        unziphack=0
        file=`strip_url "$netfile"`
        unset cmd
        case "`echo $file |tr "A-Z" "a-z"`" in
            *.tar.gz|*.tar.z|*.tgz)
            cmd="tar --use-compress-program=gzip -xf $file" ;;
            *.tar.bz2|*.tbz2)
            cmd="tar --use-compress-program=bzip2 -xf $file" ;;
            *.tar)
            cmd="tar -xf $file" ;;
            *.zip)
            unziphack=1
            cmd="unzip -qqo $file" ;;
            *.cpio.gz)
            cmd="bsdtar -x -f $file" ;;
            *.cpio.bz2)
            cmd="bsdtar -x -f $file" ;;
            *.gz)
            cmd="gunzip -f $file" ;;
            *.bz2)
            cmd="bunzip2 -f $file" ;;
        esac
        if [ "$cmd" != "" ]; then
            msg "    $cmd"
            $cmd
            if [ $? -ne 0 ]; then
                # unzip will return a 1 as a warning, it is not an error
                if [ "$unziphack" != "1" -o $? -ne 1 ]; then
                    error "Failed to extract $file"
                    msg "Aborting..."
                    exit 1
                fi
            fi
        fi
    done
fi

if [ "`id -u`" = "0" ]; then
	# chown all source files to root.root
	chown -R root.root $startdir/src
fi

# check for existing pkg directory
if [ -d $startdir/pkg ]; then
	msg "Removing existing pkg/ directory..."
	rm -rf $startdir/pkg
fi
mkdir -p $startdir/pkg

if [ "x$NOBUILD" = "1" ]; then
	msg "Sources are ready."
	exit 0
fi

# use distcc if requested
if [ "x$USE_DISTCC" = "y" ]; then
	[ -d /usr/lib/distcc/bin ] && export PATH=/usr/lib/distcc/bin:$PATH
fi

# use ccache if it's available
if [ "x$USE_CCACHE" = "1" ]; then
	[ -d /usr/lib/ccache/bin ] && export PATH=/usr/lib/ccache/bin:$PATH
fi

# build
msg "Starting build()..."

if [ "x$LOGGING" = "1" ]; then
    BUILDLOG="${startdir}/${pkgname}-${pkgver}-${pkgrel}-${CARCH}.log"
    if [ -f "$BUILDLOG" ]; then
        i=1
        while true; do
            if [ -f "$BUILDLOG.$i" ]; then
                i=$(($i +1))
            else
                break
            fi
        done
        mv "$BUILDLOG" "$BUILDLOG.$i"
    fi

    #check for "exit on syntax error" shell option
    echo $SHELLOPTS | grep errexit 2>&1 >/dev/null
    set_e=$?

    #use 'errexit' to bail on syntax error
    [ $set_e -eq 1 ] && set -e
    build 2>&1 | tee "$BUILDLOG"
    [ $set_e -eq 1 ] && set +e

    if [ ${PIPESTATUS[0]} -gt 0 ]; then
        error "Build Failed.  Aborting..."
        exit 2
    fi
else
    #use 'errexit' to bail on syntax error
    [ $set_e -eq 1 ] && set -e
    build 2>&1
    [ $set_e -eq 1 ] && set +e
    if [ $? -gt 0 ]; then
        error "Build Failed.  Aborting..."
        exit 2
    fi
fi

if [ ! "`check_option KEEPDOCS`" -a "$KEEPDOCS" = "0" ]; then
	# remove info/doc files
	msg "Removing info/doc files..."
	cd $startdir
	rm -rf pkg/usr/info pkg/usr/share/info
	rm -rf pkg/usr/doc pkg/usr/share/doc
	rm -rf pkg/{usr,opt/gnome}/share/gtk-doc
fi

# move /usr/share/man files to /usr/man
if [ -d pkg/usr/share/man ]; then
	mkdir -p pkg/usr/man 
	cp -a pkg/usr/share/man/* pkg/usr/man/
	rm -rf pkg/usr/share/man
fi

# remove /usr/share directory if empty
if [ -d pkg/usr/share ]; then
	if [ -z "`ls -1 pkg/usr/share`" ]; then
		rm -r pkg/usr/share
	fi
fi

# compress man pages
msg "Compressing man pages..."
find $startdir/pkg/{usr{,/local},opt/*}/man -type f 2>/dev/null | while read i ; do
	ext="${i##*.}"
	fn="${i##*/}"
	if [ "$ext" != "gz" -a "$ext" != "bz2" ]; then
		# update symlinks to this manpage
		find $startdir/pkg/{usr{,/local},opt/*}/man -lname "$fn" 2> /dev/null | while read ln ; do
			rm -f "$ln"
			ln -sf "${fn}.gz" "${ln}.gz"
		done
		# compress the original
		gzip -9 "$i"
	fi
done

cd $startdir

# strip binaries
if [ ! "`check_option NOSTRIP`" -a "$NOSTRIP" = "0" ]; then
	msg "Stripping debugging symbols from libraries..."
	find pkg/{,usr,usr/local,opt/*}/lib -type f -not -name "*.dll" -not -name "*.exe" \
		-exec /usr/bin/strip --strip-debug '{}' \; 2>&1 \
		| grep -v "No such file" | grep -v "format not recognized"
	msg "Stripping symbols from binaries..."
	find pkg/{,usr,usr/local,opt/*}/{bin,sbin} -type f -not -name "*.dll" -not -name "*.exe" \
		-exec /usr/bin/strip '{}' \; 2>&1 \
		| grep -v "No such file" | grep -v "format not recognized"
fi

# remove libtool (.la) files
if [ "`check_option NOLIBTOOL`" -a "x$NOLIBTOOL" = "1" ]; then
	msg "Removing libtool .la files..."
	find pkg -type f -name "*.la" -exec rm -f -- '{}' \;
fi

# remove empty directories
if [ "`check_option NOEMPTYDIRS`" -a "x$NOEMPTYDIRS" = 1 ]; then
	msg "Removing empty directories..."
	find pkg -depth -type d -empty -delete;
fi

# get some package meta info
builddate=`LC_ALL= ; LANG= ; date -u "+%a %b %e %H:%M:%S %Y"`
if [ "$PACKAGER" != "" ]; then
	packager="$PACKAGER"
else
	packager="Arch Linux (http://www.archlinux.org)"
fi
size=`du -cb $startdir/pkg | tail -n 1 | awk '{print $1}'`

# write the .PKGINFO file
msg "Generating .PKGINFO file..."
cd $startdir/pkg
echo "# Generated by makepkg $myver" >.PKGINFO
echo -n "# " >>.PKGINFO
date >>.PKGINFO
echo "pkgname = $pkgname" >>.PKGINFO
echo "pkgver = $pkgver-$pkgrel" >>.PKGINFO
echo "pkgdesc = $pkgdesc" >>.PKGINFO
echo "url = $url" >>.PKGINFO
echo "builddate = $builddate" >>.PKGINFO
echo "packager = $packager" >>.PKGINFO
echo "size = $size" >>.PKGINFO
if [ "$CARCH" != "" ]; then
	echo "arch = $CARCH" >>.PKGINFO
fi

for it in "${license[@]}"; do
	echo "license = $it" >>.PKGINFO
done
for it in "${replaces[@]}"; do
	echo "replaces = $it" >>.PKGINFO
done
for it in "${groups[@]}"; do
	echo "group = $it" >>.PKGINFO
done
for it in "${depends[@]}"; do
	echo "depend = $it" >>.PKGINFO
done
for it in "${conflicts[@]}"; do
	echo "conflict = $it" >>.PKGINFO
done
for it in "${provides[@]}"; do
	echo "provides = $it" >>.PKGINFO
done
for it in "${backup[@]}"; do
	echo "backup = $it" >>.PKGINFO
done

# check for an install script
if [ "$install" != "" ]; then
	msg "Copying install script..."
	cp $startdir/$install $startdir/pkg/.INSTALL
fi

# build a filelist
msg "Generating .FILELIST file..."
cd $startdir/pkg
tar cvf /dev/null * | sort >.FILELIST

# tar it up
msg "Compressing package..."
cd $startdir/pkg
if [ -f $startdir/pkg/.INSTALL ]; then
	cmd="tar czvf $PKGDEST/$pkgname-$pkgver-$pkgrel-${CARCH}.${PKGEXT} .PKGINFO .FILELIST .INSTALL *"
else
	cmd="tar czvf $PKGDEST/$pkgname-$pkgver-$pkgrel-${CARCH}.${PKGEXT} .PKGINFO .FILELIST *"
fi
$cmd | sort >../filelist

if [ ${PIPESTATUS[0]} -gt 0 ]; then
    error "Failed to create package file."
    exit ${PIPESTATUS[0]}
fi

cd $startdir
if [ "$CLEANUP" = "1" ]; then
	msg "Cleaning up..."
	rm -rf src pkg filelist
    rm -rf ${pkgname}-${pkgver}-${pkgrel}-${CARCH}.log*
fi

if [ "$RMDEPS" = "1" -a "`id -u`" = "0" -a "$INFAKEROOT" != "1" -a \( ! -z "$deplist" -o ! -z "$makedeplist" \) ]; then
	msg "Removing installed dependencies..."
	pacman $PACMAN_OPTS -R $makedeplist $deplist
elif [ "$RMDEPS" = "1" -a "$DEP_SUDO" = "1" ]; then
	msg "Removing installed dependencies..."
	if [ "$INFAKEROOT" = "1" ]; then
		FAKEROOTKEY2=$FAKEROOTKEY
		unset FAKEROOTKEY
	fi
	sudo pacman $PACMAN_OPTS -R $makedeplist $deplist
	if [ "$INFAKEROOT" = "1" ]; then
		export FAKEROOTKEY=$FAKEROOTKEY2
		unset FAKEROOTKEY2
	fi
fi

msg "Finished making: $pkgname  (`date`)"

if [ "$INSTALL" = "1" -a "`id -u`" = "0" -a "$INFAKEROOT" != "1" ]; then
	msg "Installing package with pacman -U..."
	pacman $PACMAN_OPTS -U $PKGDEST/${pkgname}-${pkgver}-${pkgrel}-${CARCH}.${PKGEXT}
	exit $?
elif [ "$INSTALL" = "1" -a "$DEP_SUDO" = "1" ]; then
	msg "Installing package with pacman -U..."
	if [ "$INFAKEROOT" = "1" ]; then
		FAKEROOTKEY2=$FAKEROOTKEY
		unset FAKEROOTKEY
	fi
	sudo pacman $PACMAN_OPTS -U $PKGDEST/${pkgname}-${pkgver}-${pkgrel}-${CARCH}.${PKGEXT}
	if [ "$INFAKEROOT" = "1" ]; then
		export FAKEROOTKEY=$FAKEROOTKEY2
		unset FAKEROOTKEY2
	fi
fi

exit 0