[packages/rpm-build-tools.git] / builder.sh

#!/bin/ksh
#
# This program is free software, distributed under the terms of
# the GNU General Public License Version 2.
#
# -----------
# Exit codes:
#	  0 - succesful
#	  1 - help displayed
#	  2 - no spec file name in cmdl parameters
#	  3 - spec file not stored in repo
#	  4 - some source, patch or icon files not stored in repo
#	  5 - package build failed
#	  6 - spec file with errors
#	  7 - wrong source in /etc/poldek.conf
#	  8 - Failed installing buildrequirements and subrequirements
#	  9 - Requested tag already exist
#	 10 - Refused to build fractional release
#	100 - Unknown error (should not happen)

# Notes (todo/bugs):
# - when Icon: field is present, -5 and -a5 doesn't work
# - builder -R skips installing BR if spec is not present before builder invocation (need to run builder twice)
# - does not respect NoSource: X, and tries to cvs up such files [ example: VirtualBox-bin.spec and its Source0 ]
# TODO:
# - ability to do ./builder -bb foo.spec foo2.spec foo3.spec
# - funny bug, if source-md5 is set then builder will download from distfiles even if there is no url present:
#   Source10:	forwardfix.pl
#   # Source10-md5:	8bf85f7368933a4e0cb4f875bac28733
# - builder --help:
#	basename: missing operand
#	Try `basename --help' for more information.
#	-- and the normal usage info --

PROGRAM=${0##*/}
APPDIR=$(d=$0; [ -L "$d" ] && d=$(readlink -f "$d"); dirname "$d")
RCSID='$Id$' r=${RCSID#* * } rev=${r%% *}
VERSION="v0.35/$rev"
VERSIONSTRING="\
Build package utility from PLD Linux CVS repository
$VERSION (C) 1999-2010 Free Penguins".

PATH="/bin:/usr/bin:/usr/sbin:/sbin:/usr/X11R6/bin"

# required rpm-build-macros
RPM_MACROS_VER=1.534

COMMAND="build"
TARGET=""

SPECFILE=""
BE_VERBOSE=""
QUIET=""
CLEAN=""
DEBUG=""
NOURLS=""
NOCVS=""
NOCVSSPEC=""
NODIST=""
NOINIT=""
PREFMIRRORS=""
UPDATE=""
ADD5=""
NO5=""
ALWAYS_CVSUP=${ALWAYS_CVSUP:-"yes"}
CVSROOT=""
GREEDSRC=""

# use rpm 4.4.6+ digest format instead of comments if non-zero
USEDIGEST=

# user agent when fetching files
USER_AGENT="PLD/Builder($VERSION)"

# It can be used i.e. in log file naming.
# See LOGFILE example.
DATE=`date +%Y-%m-%d_%H-%M-%S`

# Example: LOGFILE='../log.$PACKAGE_NAME'
# Example: LOGFILE='../LOGS/log.$PACKAGE_NAME.$DATE'
# Example: LOGFILE='$PACKAGE_NAME/$PACKAGE_NAME.$DATE.log'
# Example: LOGFILE='$PACKAGE_NAME.$DATE.log'
# Yes, you can use variable name! Note _single_ quotes!
LOGFILE=''

LOGDIR=""
LOGDIROK=""
LOGDIRFAIL=""
LASTLOG_FILE=""

CHMOD="no"
CHMOD_MODE="0644"
RPMOPTS=""
RPMBUILDOPTS=""
BCOND=""
GROUP_BCONDS="no"

# create symlinks for tools in PACKAGE_DIR, see get_spec()
SYMLINK_TOOLS="no"

PATCHES=""
SOURCES=""
ICONS=""
PACKAGE_RELEASE=""
PACKAGE_VERSION=""
PACKAGE_NAME=""
ASSUMED_NAME=""
PROTOCOL="ftp"
WGET_RETRIES=${MAX_WGET_RETRIES:-0}

CVS_COMMAND=${CVS_COMMAND:-cvs}
CVS_FORCE=""
CVSIGNORE_DF="yes"
CVS_RETRIES=${MAX_CVS_RETRIES:-1000}
CVS_SERVER="cvs.pld-linux.org"
CVSTAG=""

RES_FILE=""

DISTFILES_SERVER="://distfiles.pld-linux.org"
ATTICDISTFILES_SERVER="://attic-distfiles.pld-linux.org"

DEF_NICE_LEVEL=19
SCHEDTOOL="auto"

FAIL_IF_NO_SOURCES="yes"

# let get_files skip over files which are present to get those damn files fetched
SKIP_EXISTING_FILES="no"

TRY_UPGRADE=""
# should the specfile be restored if upgrade failed?
REVERT_BROKEN_UPGRADE="yes"

if rpm --specsrpm 2>/dev/null; then
	FETCH_BUILD_REQUIRES_RPMSPECSRPM="yes"
	FETCH_BUILD_REQUIRES_RPMGETDEPS="no"
else
	FETCH_BUILD_REQUIRES_RPMSPECSRPM="no"
	if [ -x /usr/bin/rpm-getdeps ]; then
		FETCH_BUILD_REQUIRES_RPMGETDEPS="yes"
	else
		FETCH_BUILD_REQUIRES_RPMGETDEPS="no"
	fi
fi


# Here we load saved user environment used to
# predefine options set above, or passed to builder
# in command line.
# This one reads global system environment settings:
if [ -f ~/etc/builderrc ]; then
	. ~/etc/builderrc
fi
# And this one cascades settings using user personal
# builder settings.
# Example of ~/.builderrc:
#
#UPDATE_POLDEK_INDEXES="yes"
#FETCH_BUILD_REQUIRES="yes"
#REMOVE_BUILD_REQUIRES="force"
#GROUP_BCONDS="yes"
#LOGFILE='../LOGS/log.$PACKAGE_NAME.$DATE'
#TITLECHANGE=no
#
SU_SUDO=""
if [ -n "$HOME_ETC" ]; then
	USER_CFG="$HOME_ETC/.builderrc"
	BUILDER_MACROS="$HOME_ETC/.builder-rpmmacros"
else
	USER_CFG=~/.builderrc
	BUILDER_MACROS=~/.builder-rpmmacros
fi

[ -f "$USER_CFG" ] && . "$USER_CFG"

if [ "$SCHEDTOOL" = "auto" ]; then
	if [ -x /usr/bin/schedtool ] && schedtool -B -e echo >/dev/null; then
		SCHEDTOOL="schedtool -B -e"
	else
		SCHEDTOOL="no"
	fi
fi

if [ -n "$USE_PROZILLA" ]; then
	GETURI="proz --no-getch -r -P ./ -t$WGET_RETRIES $PROZILLA_OPTS"
	GETURI2="$GETURI"
	OUTFILEOPT="-O"
elif [ -n "$USE_AXEL" ]; then
	GETURI="axel -a $AXEL_OPTS"
	GETURI2="$GETURI"
	OUTFILEOPT="-o"
else
	wget --help 2>&1 | grep -q -- ' --no-check-certificate ' && WGET_OPTS="$WGET_OPTS --no-check-certificate"
	wget --help 2>&1 | grep -q -- ' --inet ' && WGET_OPTS="$WGET_OPTS --inet"
	wget --help 2>&1 | grep -q -- ' --retry-connrefused ' && WGET_OPTS="$WGET_OPTS --retry-connrefused"
	WGET_OPTS="$WGET_OPTS --user-agent=$USER_AGENT"

	GETURI="wget --passive-ftp -c -nd -t$WGET_RETRIES $WGET_OPTS"
	GETURI2="wget -c -nd -t$WGET_RETRIES $WGET_OPTS"
	OUTFILEOPT="-O"
fi

GETLOCAL="cp -a"

if (rpm --version 2>&1 | grep -q '4.0.[0-2]'); then
	RPM="rpm"
	RPMBUILD="rpm"
else
	RPM="rpm"
	RPMBUILD="rpmbuild"
fi

#
# sanity checks
#
if [ -d $HOME/rpm/SOURCES ]; then
	echo "ERROR: ~/rpm/{SPECS,SOURCES} structure is obsolete" >&2
	echo "ERROR: get rid of your ~/rpm/SOURCES" >&2
	exit 1
fi

#
# are we using cvs-nserver ?
#
CVS_NSERVER=0
$CVS_COMMAND --version 2>&1 | grep -q 'CVS-nserver'
[ $? -eq 0 ] && CVS_NSERVER=1

POLDEK_INDEX_DIR="$($RPM --eval %_rpmdir)/"
POLDEK_CMD="$SU_SUDO /usr/bin/poldek --noask"

run_poldek() {
	RES_FILE=$(mktemp -t builder.XXXXXX || ${TMPDIR:-/tmp}/builder.$RANDOM)
	if [ -n "$LOGFILE" ]; then
		LOG=`eval echo $LOGFILE`
		if [ -n "$LASTLOG_FILE" ]; then
			echo "LASTLOG=$LOG" > $LASTLOG_FILE
		fi
		(${NICE_COMMAND} ${POLDEK_CMD} `while test $# -gt 0; do echo "$1 ";shift;done` ; echo $? > ${RES_FILE})|tee -a $LOG
		return $exit_pldk
	else
		(${NICE_COMMAND} ${POLDEK_CMD} `while test $# -gt 0; do echo "$1 ";shift;done` ; echo $? > ${RES_FILE}) 1>&2 >/dev/null
		return `cat ${RES_FILE}`
		rm -rf ${RES_FILE}
	fi
}

#---------------------------------------------
# functions

usage() {
	if [ -n "$DEBUG" ]; then set -xv; fi
	echo "\
Usage: builder [-D|--debug] [-V|--version] [--short-version] [-a|--as_anon] [-b|-ba|--build]
[-bb|--build-binary] [-bs|--build-source] [-bc] [-bi] [-bl] [-u|--try-upgrade]
[{-cf|--cvs-force}] [{-B|--branch} <branch>] [{-d|--cvsroot} <cvsroot>]
[-g|--get] [-h|--help] [--http] [{-l|--logtofile} <logfile>] [-m|--mr-proper]
[-q|--quiet] [--date <yyyy-mm-dd> [-r <cvstag>] [{-T|--tag <cvstag>]
[-Tvs|--tag-version-stable] [-Ts|--tag-stable] [-Tv|--tag-version]
[{-Tp|--tag-prefix} <prefix>] [{-tt|--test-tag}] [--use-greed-sources]
[-nu|--no-urls] [-v|--verbose] [--opts <rpm opts>] [--short-circuit]
[--show-bconds] [--with/--without <feature>] [--define <macro> <value>]
<package>[.spec][:cvstag]

-5, --update-md5    - update md5 comments in spec, implies -nd -ncs
-a5, --add-md5      - add md5 comments to URL sources, implies -nc -nd -ncs
-n5, --no-md5       - ignore md5 comments in spec
-D, --debug         - enable builder script debugging mode,
-debug              - produce rpm debug package (same as --opts -debug)
-V, --version       - output builder version string
--short-version     - output builder short version
-a, --as_anon       - get files via pserver as cvs@$CVS_SERVER,
-b, -ba, --build    - get all files from CVS repo or HTTP/FTP and build package
                      from <package>.spec,
-bb, --build-binary - get all files from CVS repo or HTTP/FTP and build binary
                      only package from <package>.spec,
-bp, --build-prep   - execute the %prep phase of <package>.spec,
-bc                 - execute the %build phase of <package>.spec,
-bi                 - execute the %install phase of <package>.spec
-bl					- execute the %files phase of <package>.spec
-bs, --build-source - get all files from CVS repo or HTTP/FTP and only pack
                      them into src.rpm,
--short-circuit     - short-circuit build
-B, --branch        - add branch
-c, --clean         - clean all temporarily created files (in BUILD\$RPM_BUILD_ROOT) after rpmbuild commands.
                      may be used with building process.
-m, --mr-proper     - clean all temporarily created files (in BUILD, SOURCES,
					  SPECS and \$RPM_BUILD_ROOT and CVS/Entries). Doesn't run
					  any rpm building.
-cf, --cvs-force	- use -F when tagging (useful when moving branches)
-d <cvsroot>, --cvsroot <cvsroot>
                    - setup \$CVSROOT,
--define <macro> <value>
                    - define a macro <macro> with value <value>,
--alt_kernel <kernel>
                    - same as --define 'alt_kernel <kernel>'
--nodeps            - rpm won't check any dependences
-g, --get           - get <package>.spec and all related files from CVS repo
                      or HTTP/FTP,
-h, --help          - this message,
--http              - use http instead of ftp,
-l <logfile>, --logtofile <logfile>
                    - log all to file,
-nc, --no-cvs       - don't download sources from CVS, if source URL is given,
-ncs, --no-cvs-specs
                    - don't check specs in CVS
-nd, --no-distfiles - don't download from distfiles
-nm, --no-mirrors   - don't download from mirror, if source URL is given,
-nu, --no-urls      - don't try to download from FTP/HTTP location,
-ns, --no-srcs      - don't download Sources/Patches
-ns0, --no-source0  - don't download Source0
-nn, --no-net       - don't download anything from the net
-pm, --prefer-mirrors - prefer mirrors (if any) over distfiles for SOURCES
--no-init           - don't initialize builder paths (SPECS and SOURCES)
-ske,
--skip-existing-files - skip existing files in get_files
--opts <rpm opts>   - additional options for rpm
-q, --quiet         - be quiet,
--date yyyy-mm-dd   - build package using resources from specified CVS date,
-r <cvstag>, --cvstag <cvstag>
                    - build package using resources from specified CVS tag,
-A                  - build package using CVS resources as any sticky tags/date/kopts being reset.
-R, --fetch-build-requires
                    - fetch what is BuildRequired,
-RB, --remove-build-requires
                    - remove all you fetched with -R or --fetch-build-requires
                      remember, this option requires confirmation,
-FRB, --force-remove-build-requires
                    - remove all you fetched with -R or --fetch-build-requires
                      remember, this option works without confirmation,
-sd, --source-distfiles - list sources available from distfiles (intended for offline
                      operations; does not work when Icon field is present
                      but icon file is absent),
-sc, --source-cvs - list sources available from CVS
-sdp, --source-distfiles-paths - list sources available from distfiles -
                      paths relative to distfiles directory (intended for offline
                      operations; does not work when Icon field is present
                      but icon file is absent),
-sf, --source-files - list sources - bare filenames (intended for offline
                      operations; does not work when Icon field is present
                      but icon file is absent),
-sp, --source-paths - list sources - filenames with full local paths (intended for
                      offline operations; does not work when Icon field is present
                      but icon file is absent),
-su, --source-urls  - list urls - urls to sources and patches
                      intended for copying urls with spec with lots of macros in urls
-T <cvstag> , --tag <cvstag>
                    - add cvs tag <cvstag> for files,
-Tvs, --tag-version-stable
                    - add cvs tags STABLE and NAME-VERSION-RELEASE for files,
-Ts, --tag-stable
                    - add cvs tag STABLE for files,
-Tv, --tag-version
                    - add cvs tag NAME-VERSION-RELEASE for files,
-Tp, --tag-prefix <prefix>
                    - add <prefix> to NAME-VERSION-RELEASE tags,
-tt, --test-tag <prefix>
                    - fail if tag is already present,
-ir, --integer-release-only
                    - allow only integer and snapshot releases
-v, --verbose       - be verbose,
-u, --try-upgrade   - check version, and try to upgrade package
-un, --try-upgrade-with-float-version
                    - as above, but allow float version
--use-greed-sources
                    - try download source from tag head if don't find it in
                      current tag
-U, --update        - refetch sources, don't use distfiles, and update md5 comments
-Upi, --update-poldek-indexes
                    - refresh or make poldek package index files.
-np, --nopatch <patchnumber>
                    - don't apply <patchnumber>
--show-bconds       - show available conditional builds, which can be used
                    - with --with and/or --without switches.
--show-bcond-args   - show active bconds, from ~/.bcondrc. this is used by
                      ./repackage.sh script. in other words, the output is
                      parseable by scripts.
--show-avail-bconds - show available bconds
--with/--without <feature>
                    - conditional build package depending on %_with_<feature>/
                      %_without_<feature> macro switch.  You may now use
                      --with feat1 feat2 feat3 --without feat4 feat5 --with feat6
                      constructions. Set GROUP_BCONDS to yes to make use of it.
--target <platform>, --target=<platform>
                     - build for platform <platform>.
--init-rpm-dir       - initialize ~/rpm directory structure
"
}

# change dependency to specname
# common changes:
# - perl(Package::Name) -> perl-Package-Name
depspecname() {
	local package="$1"

	package=$(echo "$package" | sed -e '/perl(.*)/{s,perl(\(.*\)),perl-\1,;s,::,-,g};' -e 's/-\(devel\|static\)$//' )
	echo "$package"
}

update_shell_title() {
	[ -t 1 ] || return
	local len=${COLUMNS:-80}
	local msg="$(echo "$*" | cut -c-$len)"

	if [ -n "$BE_VERBOSE" ]; then
		echo >&2 "$(date +%s.%N) $*"
	fi

	if [ "x$TITLECHANGE" = "xyes" -o "x$TITLECHANGE" = "x" ]; then
		local pkg
		if [ -n "$PACKAGE_NAME" ]; then
			pkg=${PACKAGE_NAME}-${PACKAGE_VERSION}-${PACKAGE_RELEASE}
		else
			pkg=${SPECFILE}
		fi

		msg="$pkg: ${SHELL_TITLE_PREFIX:+$SHELL_TITLE_PREFIX }$msg"
		msg=$(echo $msg | tr -d '\n\r')
		case "$TERM" in
			cygwin|xterm*)
			echo >&2 -ne "\033]1;$msg\007\033]2;$msg\007"
		;;
			screen*)
			echo >&2 -ne "\033]0;$msg\007"
		;;
		esac
	fi
}

# set TARGET from BuildArch: from SPECFILE
set_spec_target() {
	if [ -n "$SPECFILE" ] && [ -z "$TARGET" ]; then
		tmp=$(awk '/^BuildArch:/ { print $NF; exit }' $ASSUMED_NAME/$SPECFILE)
		if [ "$tmp" ]; then
				target_platform=$(rpm -E '%{_target_vendor}-%{_target_os}%{?_gnu}')
				TARGET="$tmp"
				case "$RPMBUILD" in
				"rpmbuild")
					TARGET_SWITCH="--target ${TARGET}-${target_platform}" ;;
				"rpm")
					TARGET_SWITCH="--target=$TARGET" ;;
				esac
		fi
	fi
}

# runs rpm with minimal macroset
minirpm() {
	# we reset macros not to contain macros.build as all the %() macros are
	# executed here, while none of them are actually needed.
	# at the time of this writing macros.build + macros contained 70 "%(...)" macros.
	safe_macrofiles=$(rpm $TARGET_SWITCH --showrc | awk -F: '/^macrofiles/ { gsub(/^macrofiles[ \t]+:/, "", $0); gsub(/:.*macros.build:/, ":", $0); print $0 } ')

	# TODO: move these to /usr/lib/rpm/macros
	cat > $BUILDER_MACROS <<'EOF'
%x8664 x86_64 amd64 ia32e
%alt_kernel %{nil}
%_alt_kernel %{nil}
%bootstrap_release() %{1}
%requires_releq_kernel_up(s:n:) %{nil}
%requires_releq_kernel_smp(s:n:) %{nil}
%requires_releq_kernel(s:n:) %{nil}
%requires_releq() %{nil}
%pyrequires_eq() %{nil}
%requires_eq() %{nil}
%requires_eq_to() %{nil}
%requires_ge() %{nil}
%requires_ge_to() %{nil}
%requires_ge() %{nil}
%releq_kernel_up(n:) ERROR
%releq_kernel_smp(n:) ERROR
%releq_kernel(n:) ERROR
%kgcc_package ERROR
%_fontsdir ERROR
%ruby_version ERROR
%ruby_ver_requires_eq() %{nil}
%ruby_mod_ver_requires_eq() %{nil}
%__php_api_requires() %{nil}
%php_major_version ERROR
%php_api_version ERROR
%requires_xorg_xserver_extension %{nil}
%requires_xorg_xserver_xinput %{nil}
%requires_xorg_xserver_font %{nil}
%requires_xorg_xserver_videodrv %{nil}
%py_ver ERROR
%perl_vendorarch ERROR
%perl_vendorlib ERROR
# damn. need it here! - copied from /usr/lib/rpm/macros.build
%tmpdir		%(echo "${TMPDIR:-/tmp}")
%patchset_source(f:b:) %(
	base=%{-b*}%{!-b*:10000};
	start=$(expr $base + %1);
	end=$(expr $base + %{?2}%{!?2:%{1}});
	# we need to call seq twice as it doesn't allow two formats
	seq -f 'Patch%g:' $start $end > %{tmpdir}/__ps1;
	seq -f '%{-f*}' %1 %{?2}%{!?2:%{1}} > %{tmpdir}/__ps2;
	paste %{tmpdir}/__ps{1,2};
	rm -f %{tmpdir}/__ps{1,2};
) \
%{nil}
%add_etc_shells(p) %{p:<lua>}
%remove_etc_shells(p) %{p:<lua>}
%lua_add_etc_shells()  %{nil}
%lua_remove_etc_shells() %{nil}
%required_jdk %{nil}
%buildrequires_jdk %{nil}
EOF
	if [ "$NOINIT" = "yes" ] ; then
		cat >> $BUILDER_MACROS <<'EOF'
%_specdir ./
%_sourcedir ./
EOF
	fi
	eval $RPMBUILD $TARGET_SWITCH --macros "$safe_macrofiles:$BUILDER_MACROS" $QUIET $RPMOPTS $RPMBUILDOPTS $BCOND $* 2>&1
}

cache_rpm_dump() {
	if [ -n "$DEBUG" ]; then
		set -x
		set -v
	fi

	if [ -x /usr/bin/rpm-specdump ]; then
		update_shell_title "cache_rpm_dump using rpm-specdump command"
		rpm_dump_cache=$(rpm-specdump $TARGET_SWITCH $BCOND $SPECFILE)
	else
		update_shell_title "cache_rpm_dump using rpmbuild command"
		local rpm_dump
		rpm_dump=`
			# what we need from dump is NAME, VERSION, RELEASE and PATCHES/SOURCES.
			dump='%{echo:dummy: PACKAGE_NAME %{name} }%dump'
			case "$RPMBUILD" in
			rpm)
				ARGS='-bp'
				;;
			rpmbuild)
				ARGS='--nodigest --nosignature --nobuild'
				;;
			esac
			minirpm $ARGS --define "'prep $dump'" --nodeps $SPECFILE
		`
		if [ $? -gt 0 ]; then
			error=$(echo "$rpm_dump" | sed -ne '/^error:/,$p')
			echo "$error" >&2
			Exit_error err_build_fail
		fi

		# make small dump cache
		rpm_dump_cache=`echo "$rpm_dump" | awk '
			$2 ~ /^SOURCEURL/ {print}
			$2 ~ /^PATCHURL/  {print}
			$2 ~ /^nosource/ {print}
			$2 ~ /^PACKAGE_/ {print}
		'`
	fi

	update_shell_title "cache_rpm_dump: OK!"
}

rpm_dump() {
	if [ -z "$rpm_dump_cache" ] ; then
		echo >&2 "internal error: cache_rpm_dump not called! (missing %prep?)"
	fi
	echo "$rpm_dump_cache"
}

get_icons() {
	update_shell_title "get icons"
	ICONS=$(awk '/^Icon:/ {print $2}' $PACKAGE_DIR/${SPECFILE})
	if [ -z "$ICONS" ]; then
		return
	fi

	rpm_dump_cache="kalasaba" NODIST="yes" get_files $ICONS
}

parse_spec() {
	update_shell_title "parsing specfile"
	if [ -n "$DEBUG" ]; then
		set -x
		set -v
	fi

	# icons are needed for successful spec parse
	get_icons

	cd $PACKAGE_DIR
	cache_rpm_dump

	if (rpm_dump | grep -qEi ":.*nosource.*1"); then
		FAIL_IF_NO_SOURCES="no"
	fi

	if [ "$NOSRCS" != "yes" ]; then
		SOURCES=$(rpm_dump | awk '$2 ~ /^SOURCEURL[0-9]+/ {print substr($2, length("SOURCEURL") + 1), $3}' | LC_ALL=C sort -n | awk '{print $2}')
		PATCHES=$(rpm_dump | awk '$2 ~ /^PATCHURL[0-9]+/ {print substr($2, length("PATCHURL") + 1), $3}' | LC_ALL=C sort -n | awk '{print $2}')
		ICONS=$(awk '/^Icon:/ {print $2}' ${SPECFILE})
	fi

	PACKAGE_NAME=$(rpm_dump | awk '$2 == "PACKAGE_NAME" { print $3; exit}')
	PACKAGE_VERSION=$(rpm_dump | awk '$2 == "PACKAGE_VERSION" { print $3; exit}')
	PACKAGE_RELEASE=$(rpm_dump | awk '$2 == "PACKAGE_RELEASE" { print $3; exit}')

	if [ "$PACKAGE_NAME" != "$ASSUMED_NAME" ]; then
		echo >&2 "WARNING! Spec name ($ASSUMED_NAME) does not agree with package name ($PACKAGE_NAME)"
	fi

	if [ -n "$BE_VERBOSE" ]; then
		echo "- Sources :  `nourl $SOURCES`"
		if [ -n "$PATCHES" ]; then
			echo "- Patches :  `nourl $PATCHES`"
		else
			echo "- Patches :  *no patches needed*"
		fi
		if [ -n "$ICONS" ]; then
			echo "- Icon    :  `nourl $ICONS`"
		else
			echo "- Icon    :  *no package icon*"
		fi
		echo "- Name    : $PACKAGE_NAME"
		echo "- Version : $PACKAGE_VERSION"
		echo "- Release : $PACKAGE_RELEASE"
	fi

	update_shell_title "parse_spec: OK!"
}

Exit_error() {
	if [ -n "$DEBUG" ]; then
		set -x
		set -v
	fi

	cd "$__PWD"

	case "$1" in
		"err_no_spec_in_cmdl" )
			remove_build_requires
			echo >&2 "ERROR: spec file name not specified."
			exit 2 ;;
		"err_invalid_cmdline" )
			echo >&2 "ERROR: invalid command line arg ($2)."
			exit 2 ;;
		"err_no_spec_in_repo" )
			remove_build_requires
			echo >&2 "Error: spec file not stored in CVS repo."
			exit 3 ;;
		"err_no_source_in_repo" )
			remove_build_requires
			echo >&2 "Error: some source, patch or icon files not stored in CVS repo. ($2)"
			exit 4 ;;
		"err_build_fail" )
			remove_build_requires
			echo >&2 "Error: package build failed. (${2:-no more info})"
			exit 5 ;;
		"err_no_package_data" )
			remove_build_requires
			echo >&2 "Error: couldn't get out package name/version/release from spec file."
			exit 6 ;;
		"err_tag_exists" )
			remove_build_requires
			echo >&2 "Tag ${2} already exists (spec release: ${3})."
			exit 9 ;;
		"err_fract_rel" )
			remove_build_requires
			echo >&2 "Release ${2} not integer and not a snapshot."
			exit 10 ;;
		"err_branch_exists" )
			remove_build_requires
			echo >&2 "Tree branch already exists (${2})."
			exit 11 ;;
		"err_acl_deny" )
			remove_build_requires
			echo >&2 "Error: conditions reject building this spec (${2})."
			exit 12 ;;
	esac
	echo >&2 "Unknown error."
	exit 100
}

init_builder() {
	if [ -n "$DEBUG" ]; then
		set -x
		set -v
	fi

	if [ "$NOINIT" != "yes" ] ; then
		TOP_DIR=$(eval $RPM $RPMOPTS --eval '%{_topdir}')

		local macros_ver=$(rpm -E %?rpm_build_macros)
		if [ -z "$macros_ver" ]; then
			REPO_DIR=$TOP_DIR/packages
			PACKAGE_DIR=$TOP_DIR/packages/$ASSUMED_NAME
		else
			if awk "BEGIN{exit($macros_ver>=$RPM_MACROS_VER)}"; then
				echo >&2 "builder requires rpm-build-macros >= $RPM_MACROS_VER"
				exit 1
			fi
			REPO_DIR=$TOP_DIR
			PACKAGE_DIR=$REPO_DIR/$ASSUMED_NAME
		fi
	else
		REPO_DIR="."
		PACKAGE_DIR="."
	fi

	__PWD=$(pwd)
}

get_spec() {

	update_shell_title "get_spec"

	if [ -n "$DEBUG" ]; then
		set -x
		set -v
	fi

	cd "$REPO_DIR"
	if [ ! -f "$ASSUMED_NAME/$SPECFILE" ]; then
		# XXX: still needed?
		SPECFILE=$(basename $SPECFILE)
	fi
	if [ "$NOCVSSPEC" != "yes" ]; then

		if [ ! -s CVS/Root -a "$NOCVSSPEC" != "yes" ]; then
			echo "Warning: No CVS access defined - using local .spec file"
			NOCVSSPEC="yes"
		fi

		if [ -d "$ASSUMED_NAME" ]; then
			cvsup "$ASSUMED_NAME/$SPECFILE" || Exit_error err_no_spec_in_repo
		else
			cvsup -c -d $ASSUMED_NAME "packages/$ASSUMED_NAME/$SPECFILE" || Exit_error err_no_spec_in_repo

			# remove Entries.Static -- so 'cvs up' would update all files in a repo
			rm "$ASSUMED_NAME/CVS/Entries.Static"
			cvsignore_df .cvsignore

			# add default log format to .cvsignore if it is relative
			if [ "$LOGFILE" == $(basename "$LOGFILE") ]; then
				# substitute known "macros" to glob
				local logfile=$(echo "$LOGFILE" | sed -e 's,\$\(PACKAGE_NAME\|DATE\),*,g')
				if [ "$logfile" ]; then
					cvsignore_df "$logfile"
				fi
			fi

			# create symlinks for tools
			if [ "$SYMLINK_TOOLS" != "no" ]; then
				for a in dropin md5 adapter builder {relup,compile,repackage,rsync,pearize}.sh pldnotify.awk; do
					[ -f $a ] || continue
					ln -s ../$a $ASSUMED_NAME
					cvsignore_df $a
				done
			fi
		fi
	fi

	if [ ! -f "$ASSUMED_NAME/$SPECFILE" ]; then
		Exit_error err_no_spec_in_repo
	fi

	if [ "$CHMOD" = "yes" -a -n "$SPECFILE" ]; then
		chmod $CHMOD_MODE $ASSUMED_NAME/$SPECFILE
	fi
	unset OPTIONS
	[ -n "$DONT_PRINT_REVISION" ] || grep -E -m 1 "^#.*Revision:.*Date" $ASSUMED_NAME/$SPECFILE

	set_spec_target
}

find_mirror() {
	cd "$REPO_DIR"
	local url="$1"
	if [ ! -f "mirrors" -a "$NOCVSSPEC" != "yes" ] ; then
		$CVS_COMMAND update mirrors >&2
	fi

	IFS="|"
	local origin mirror name rest ol prefix
	while read origin mirror name rest; do
		# skip comments and empty lines
		if [ -z "$origin" ] || [ "${origin#\#}" != "$origin" ]; then
			continue
		fi
		ol=$(echo -n "$origin" | wc -c)
		prefix=$(echo -n "$url" | head -c $ol)
		if [ "$prefix" = "$origin" ] ; then
			suffix=$(echo "$url" | cut -b $((ol+1))-)
			echo -n "$mirror$suffix"
			return 0
		fi
	done < mirrors
	echo "$url"
}

# Warning: unpredictable results if same URL used twice
src_no() {
	cd $PACKAGE_DIR
	rpm_dump | \
	grep "SOURCEURL[0-9]*[ 	]*$1""[ 	]*$" | \
	sed -e 's/.*SOURCEURL\([0-9][0-9]*\).*/\1/' | \
	head -n 1 | xargs
}

src_md5() {
	[ "$NO5" = "yes" ] && return
	no=$(src_no "$1")
	[ -z "$no" ] && return
	cd $PACKAGE_DIR
	local md5

	if [ -f additional-md5sums ]; then
		local spec_rev=$(grep $SPECFILE CVS/Entries 2>/dev/null | sed -e s:/$SPECFILE/:: -e s:/.*::)
		if [ -z "$spec_rev" ]; then
			spec_rev=$(head -n 1 $SPECFILE | sed -e 's/.*\$Revision: \([0-9.]*\).*/\1/')
		fi
		local spec="$SPECFILE[0-9.,]*,$(echo $spec_rev | sed 's/\./\\./g')"
		md5=$(grep -s -v '^#' additional-md5sums | \
		grep -E "[ 	]$(basename "$1")[ 	]+${spec}([ 	,]|\$)" | \
		sed -e 's/^\([0-9a-f]\{32\}\).*/\1/' | \
		grep -E '^[0-9a-f]{32}$')

		if [ "$md5" ]; then
			if [ $(echo "$md5" | wc -l) != 1 ] ; then
				echo "$SPECFILE: more then one entry in additional-md5sums for $1" 1>&2
			fi
			echo "$md5" | tail -n 1
			return
		fi
	fi

	source_md5=`grep -i "^#[ 	]*Source$no-md5[ 	]*:" $SPECFILE | sed -e 's/.*://'`
	if [ -n "$source_md5" ]; then
		echo $source_md5
	else
		source_md5=`grep -i "BuildRequires:[ 	]*digest(%SOURCE$no)[ 	]*=" $SPECFILE | sed -e 's/.*=//'`
		if [ -n "$source_md5" ]; then
			echo $source_md5
		else
			# we have empty SourceX-md5, but it is still possible
			# that we have NoSourceX-md5 AND NoSource: X
			nosource_md5=`grep -i "^#[	 ]*NoSource$no-md5[	 ]*:" $SPECFILE | sed -e 's/.*://'`
			if [ -n "$nosource_md5" -a -n "`grep -i "^NoSource:[	 ]*$no$" $SPECFILE`" ] ; then
				echo $nosource_md5
			fi
		fi
	fi
}

distfiles_path() {
	echo "by-md5/$(src_md5 "$1" | sed -e 's|^\(.\)\(.\)|\1/\2/&|')/$(basename "$1")"
}

distfiles_url() {
	echo "$PROTOCOL$DISTFILES_SERVER/distfiles/$(distfiles_path "$1")"
}

distfiles_attic_url() {
	echo "$PROTOCOL$ATTICDISTFILES_SERVER/distfiles/Attic/$(distfiles_path "$1")"
}

good_md5() {
	md5=$(src_md5 "$1")
	[ "$md5" = "" ] || \
	[ "$md5" = "$(md5sum $(nourl "$1") 2> /dev/null | sed -e 's/ .*//')" ]
}

good_size() {
	size=$(find $(nourl "$1") -printf "%s" 2>/dev/null)
	[ -n "$size" -a "$size" -gt 0 ]
}

cvsignore_df() {
	if [ "$CVSIGNORE_DF" != "yes" ]; then
		return
	fi
	cvsignore=${PACKAGE_DIR}/.cvsignore

	# add only if not yet there
	if ! awk -vf="$1" -vc=1 '$0 == f { c = 0 } END { exit c }' $cvsignore 2>/dev/null; then
		echo "$1" >> $cvsignore
	fi
}

cvsup() {
	update_shell_title "cvsup"
	local OPTIONS="up "

	if [ "$1" = "-c" ]; then
		OPTIONS="co "
		shift
	fi
	if [ -n "$CVSROOT" ]; then
		OPTIONS="-d $CVSROOT $OPTIONS"
	fi

	if [ -z "$CVSDATE" -a -z "$CVSTAG" ]; then
		OPTIONS="$OPTIONS -A"
	else
		if [ -n "$CVSDATE" ]; then
			OPTIONS="$OPTIONS -D $CVSDATE"
		fi
		if [ -n "$CVSTAG" ]; then
			OPTIONS="$OPTIONS -r $CVSTAG"
		fi
	fi

	local result=1
	local retries_counter=0
	if [ $# = 1 ]; then
		update_shell_title "cvsup: $*"
	else
		update_shell_title "cvsup: $# files"
	fi
	while [ "$result" != "0" -a "$retries_counter" -le "$CVS_RETRIES" ]; do
		retries_counter=$(( $retries_counter + 1 ))
		output=$(LC_ALL=C $CVS_COMMAND $OPTIONS "$@" 2>&1)
		result=$?
		[ -n "$output" ] && echo "$output"
		if (echo "$output" | grep -qE "(Cannot connect to|connect to .* failed|Connection reset by peer|Connection timed out|Unknown host)") && [ "$result" -ne "0" -a "$retries_counter" -le "$CVS_RETRIES" ]; then
			echo "Trying again [$*]... ($retries_counter)"
			update_shell_title "cvsup: retry #$retries_counter"
			sleep 2
			continue
		else
			break
		fi
	done
	update_shell_title "cvsup: done!"
	return $result
}

# returns true if "$1" is ftp, http or https protocol url
is_url() {
	case "$1" in
	ftp://*|http://*|https://*)
		return 0
	;;
	esac
	return 1
}

update_md5() {
	if [ $# -eq 0 ]; then
		return
	fi

	update_shell_title "update md5"
	if [ -n "$DEBUG" ]; then
		set -x
		set -v
	fi

	cd "$PACKAGE_DIR"

	# pass 1: check files to be fetched
	local todo
	local need_files
	for i in "$@"; do
		local fp=$(nourl "$i")
		local srcno=$(src_no "$i")
		if [ -n "$ADD5" ]; then
			[ "$fp" = "$i" ] && continue # FIXME what is this check doing?
			grep -qiE '^#[ 	]*Source'$srcno'-md5[ 	]*:' $PACKAGE_DIR/$SPECFILE && continue
			grep -qiE '^BuildRequires:[ 	]*digest[(]%SOURCE'$srcno'[)][ 	]*=' $PACKAGE_DIR/$SPECFILE && continue
		else
			grep -qiE '^#[ 	]*Source'$srcno'-md5[ 	]*:' $PACKAGE_DIR/$SPECFILE || grep -qiE '^BuildRequires:[ 	]*digest[(]%SOURCE'$srcno'[)][ 	]*=' $PACKAGE_DIR/$SPECFILE || continue
		fi
		if [ ! -f "$fp" ] || [ $ALWAYS_CVSUP = "yes" ]; then
			need_files="$need_files $i"
		fi
	done

	# pass 1a: get needed files
	if [ "$need_files" ]; then
		get_files $need_files
	fi

	# pass 2: proceed with md5 adding or updating
	for i in "$@"; do
		local fp=$(nourl "$i")
		local srcno=$(src_no "$i")
		local md5=$(grep -iE '^#[ 	]*(No)?Source'$srcno'-md5[ 	]*:' $PACKAGE_DIR/$SPECFILE )
		if [ -z "$md5" ]; then
			md5=$(grep -iE '^[ 	]*BuildRequires:[ 	]*digest[(]%SOURCE'$srcno'[)][ 	]*=' $PACKAGE_DIR/$SPECFILE )
		fi
		if [ -n "$ADD5" ] && is_url $i || [ -n "$md5" ]; then
			local tag="# Source$srcno-md5:\t"
			if [[ "$md5" == *NoSource* ]]; then
				tag="# NoSource$srcno-md5:\t"
			elif [ -n "$USEDIGEST" ]; then
				tag="BuildRequires:\tdigest(%SOURCE$srcno) = "
			fi
			md5=$(md5sum "$fp" | cut -f1 -d' ')
			echo "Updating Source$srcno ($md5: $fp)."
			perl -i -ne '
				print unless (/^\s*#\s*(No)?Source'$srcno'-md5\s*:/i or /^\s*BuildRequires:\s*digest\(%SOURCE'$srcno'\)/i);
				print "'"$tag$md5"'\n" if /^Source'$srcno'\s*:\s+/;
			' \
			$PACKAGE_DIR/$SPECFILE
		fi
	done
}

check_md5() {
	local bad
	[ "$NO5" = "yes" ] && return

	update_shell_title "check md5"

	for i in "$@"; do
		bad=0
		if ! good_md5 "$i"; then
			echo -n "MD5 sum mismatch."
			bad=1
		fi
		if ! good_size "$i"; then
			echo -n "0 sized file."
			bad=1
		fi

		if [ $bad -eq 1 ]; then
			echo " Use -U to refetch sources,"
			echo "or -5 to update md5 sums, if you're sure files are correct."
			Exit_error err_no_source_in_repo $i
		fi
	done
}

get_files() {
	update_shell_title "get_files"

	if [ -n "$DEBUG" ]; then
		set -x
		set -v
	fi

	if [ $# -gt 0 ]; then
		cd "$PACKAGE_DIR"

		if [ ! -s CVS/Root -a "$NOCVS" != "yes" ]; then
			echo "Warning: No CVS access defined for SOURCES"
			NOCVS="yes"
		fi

		local nc=0
		local get_files_cvs=""
		for i in "$@"; do
			nc=$((nc + 1))
			local cvsup=0
			SHELL_TITLE_PREFIX="get_files[$nc/$#]"
			update_shell_title "$i"
			local fp=`nourl "$i"`
			if [ "$SKIP_EXISTING_FILES" = "yes" ] && [ -f "$fp" ]; then
				continue
			fi

			FROM_DISTFILES=0
			local srcmd5=$(src_md5 "$i")

			# we know if source/patch is present in cvs/distfiles
			# - has md5 (in distfiles)
			# - in cvs... ideas?

			# CHECK: local file didn't exist or always cvs up (first) requested.
			if [ ! -f "$fp" ] || [ $ALWAYS_CVSUP = "yes" ]; then
				if echo $i | grep -vE '(http|ftp|https|cvs|svn)://' | grep -qE '\.(gz|bz2)$']; then
					echo "Warning: no URL given for $i"
				fi
				target="$fp"

				if [ -z "$NODIST" ] && [ -n "$srcmd5" ]; then
					if good_md5 "$i" && good_size "$i"; then
						echo "$fp having proper md5sum already exists"
						continue
					fi

					# optionally prefer mirror over distfiles if there's mirror
					# TODO: build url list and then try each url from the list
					if [ -n "$PREFMIRRORS" ] && [ -z "$NOMIRRORS" ] && im=$(find_mirror "$i") && [ "$im" != "$i" ]; then
						url="$im"
					else
						url=$(distfiles_url "$i")
					fi

					url_attic=$(distfiles_attic_url "$i")
					FROM_DISTFILES=1
					# is $url local file?
					if [[ "$url" = [./]* ]]; then
						update_shell_title "${GETLOCAL%% *}: $url"
						${GETLOCAL} $url $target
					else
						if [ -z "$NOMIRRORS" ]; then
							url=$(find_mirror "$url")
						fi

						local uri=${url}
						# make shorter message for distfiles urls
						if [[ "$uri" = ${PROTOCOL}${DISTFILES_SERVER}* ]] || [[ "$uri" = ${PROTOCOL}${ATTICDISTFILES_SERVER}* ]]; then
							uri=${uri#${PROTOCOL}${DISTFILES_SERVER}/distfiles/by-md5/?/?/*/}
							uri=${uri#${PROTOCOL}${ATTICDISTFILES_SERVER}/distfiles/by-md5/?/?/*/}
							uri="df: $uri"
						fi
						update_shell_title "${GETURI%% *}: $uri"
						${GETURI} ${OUTFILEOPT} "$target" "$url" || \
						if [ "`echo $url | grep -E 'ftp://'`" ]; then
							update_shell_title "${GETURI2%% *}: $url"
							${GETURI2} ${OUTFILEOPT} "$target" "$url"
						fi
					fi

					# is it empty file?
					if [ ! -s "$target" ]; then
						rm -f "$target"
						if [ `echo $url_attic | grep -E '^(\.|/)'` ]; then
							update_shell_title "${GETLOCAL%% *}: $url_attic"
							${GETLOCAL} $url_attic $target
						else
							if [ -z "$NOMIRRORS" ]; then
								url_attic=$(find_mirror "$url_attic")
							fi
							update_shell_title "${GETURI%% *}: $url_attic"
							${GETURI} ${OUTFILEOPT} "$target" "$url_attic" || \
							if [ "`echo $url_attic | grep -E 'ftp://'`" ]; then
								update_shell_title "${GETURI2%% *}: $url_attic"
								${GETURI2} ${OUTFILEOPT} "$target" "$url_attic"
							fi
							test -s "$target" || rm -f "$target"
						fi
					fi

					if [ -s "$target" ]; then
						cvsignore_df $target
					else
						rm -f "$target"
						FROM_DISTFILES=0
					fi
				elif [ "$NOCVS" != "yes" -a -z "$srcmd5" ]; then
					if [ $# -gt 1 ]; then
						get_files_cvs="$get_files_cvs $fp"
						update_shell_title "$fp (will cvs up later)"
						cvsup=1
					else
						cvsup $fp
					fi
				fi

				if [ -z "$NOURLS" ] && [ ! -f "$fp" -o -n "$UPDATE" ] && [ "`echo $i | grep -E 'ftp://|http://|https://'`" ]; then
					if [ -z "$NOMIRRORS" ]; then
						im=$(find_mirror "$i")
					else
						im="$i"
					fi
					update_shell_title "${GETURI%% *}: $im"
					${GETURI} "$im" ${OUTFILEOPT} "$target" || \
					if [ "`echo $im | grep -E 'ftp://'`" ]; then
						update_shell_title "${GETURI2%% *}: $im"
						${GETURI2} "$im" ${OUTFILEOPT} "$target"
					fi
					test -s "$target" || rm -f "$target"
				fi

				if [ "$cvsup" = 1 ]; then
					continue
				fi

			fi

			# the md5 check must be moved elsewhere as if we've called from update_md5 the md5 is wrong.
			if [ ! -f "$fp" -a "$FAIL_IF_NO_SOURCES" != "no" ]; then
				if [ -n "GREEDSRC" ]; then
					get_greed_sources $i
				else
					Exit_error err_no_source_in_repo $i
				fi
			fi

			# we check md5 here just only to refetch immediately
			if good_md5 "$i" && good_size "$i"; then
				:
			elif [ "$FROM_DISTFILES" = 1 ]; then
				# wrong md5 from distfiles: remove the file and try again
				# but only once ...
				echo "MD5 sum mismatch. Trying full fetch."
				FROM_DISTFILES=2
				rm -f $target
				update_shell_title "${GETURI%% *}: $url"
				${GETURI} ${OUTFILEOPT} "$target" "$url" || \
				if [ "`echo $url | grep -E 'ftp://'`" ]; then
					update_shell_title "${GETURI2%% *}: $url"
					${GETURI2} ${OUTFILEOPT} "$target" "$url"
				fi
				if [ ! -s "$target" ]; then
					rm -f "$target"
					update_shell_title "${GETURI%% *}: $url_attic"
					${GETURI} ${OUTFILEOPT} "$target" "$url_attic" || \
					if [ "`echo $url_attic | grep -E 'ftp://'`" ]; then
						update_shell_title "${GETURI2%% *}: $url_attic"
						${GETURI2} ${OUTFILEOPT} "$target" "$url_attic"
					fi
				fi
				test -s "$target" || rm -f "$target"
			fi
		done
		SHELL_TITLE_PREFIX=""

		if [ "$get_files_cvs" ]; then
			cvsup $get_files_cvs
		fi

		if [ "$CHMOD" = "yes" ]; then
			CHMOD_FILES=$(nourl "$@")
			if [ -n "$CHMOD_FILES" ]; then
				chmod $CHMOD_MODE $CHMOD_FILES
			fi
		fi
	fi
}

make_tagver() {
	if [ -n "$DEBUG" ]; then
		set -x
		set -v
	fi

	# Check whether first character of PACKAGE_NAME is legal for tag name
	if [ -z "${PACKAGE_NAME##[_0-9]*}" -a -z "$TAG_PREFIX" ]; then
		TAG_PREFIX=tag_
	fi

	# NOTE: CVS tags may must not contain the characters `$,.:;@'
	TAGVER=$(echo $TAG_PREFIX$PACKAGE_NAME-$PACKAGE_VERSION-$PACKAGE_RELEASE | tr '[.@]' '[_#]')

	# Remove #kernel.version_release from TAGVER because tagging sources
	# could occur with different kernel-headers than kernel-headers used at build time.
	# besides, %{_kernel_ver_str} is not expanded.

	# TAGVER=auto-ac-madwifi-ng-0-0_20070225_1#%{_kernel_ver_str}
	# TAGVER=auto-ac-madwifi-ng-0-0_20070225_1

	TAGVER=${TAGVER%#*}
	echo -n "$TAGVER"
}

# bool is_tag_a_branch(tag)
#
# returns 1 if a tag is a branch set on SPECFILE
is_tag_a_branch() {
	if [ -n "$DEBUG" ]; then
		set -x
		set -v
	fi

	if [ $# -ne 1 ]; then
		return 0;
	fi

	TAG=$1

	cd "$PACKAGE_DIR"
	$CVS_COMMAND status -v $SPECFILE | grep -Eiq "${TAG}.+(branch: [0-9.]+)"
	return $?
}

tag_files() {
	TAG_FILES="$@"

	if [ -n "$DEBUG" ]; then
		set -x
		set -v
	fi

	echo "Version: $PACKAGE_VERSION"
	echo "Release: $PACKAGE_RELEASE"

	local TAGVER
	if [ "$TAG_VERSION" = "yes" ]; then
		TAGVER=`make_tagver`
		echo "CVS tag: $TAGVER"
	fi
	if [ -n "$TAG" ]; then
		echo "CVS tag: $TAG"
	fi

	local OPTIONS="tag $CVS_FORCE"
	if [ -n "$CVSROOT" ]; then
		OPTIONS="-d $CVSROOT $OPTIONS"
	fi

	# if a tagname we are about to set already exists
	# and happens to be a branch (common case with AC-branch)
	# pass -B (allows -F to disturb branch tag)
	local _tag=$TAG
	if [ "$TAG_VERSION" = "yes" ]; then
		_tag=$TAGVER
	fi;
	is_tag_a_branch $_tag
	if [ $? -eq 0 -a $CVS_NSERVER -eq 0 ]; then
		OPTIONS="$OPTIONS -B"
	fi;

	cd "$PACKAGE_DIR"
	local tag_files
	for i in $TAG_FILES; do
		# don't tag files stored on distfiles
		[ -n "`src_md5 $i`" ] && continue
		local fp=`nourl "$i"`
		if [ -f "$fp" ]; then
			tag_files="$tag_files $fp"
		elif [ -n "GREEDSRC" ]; then
			get_greed_sources $i
		else
			Exit_error err_no_source_in_repo $i
		fi
	done

	if [ "$tag_files" ]; then
		if [ "$TAG_VERSION" = "yes" ]; then
			update_shell_title "tag sources: $TAGVER"
			printf "Tagging %d files\n" $(echo $tag_files | wc -w)
			$CVS_COMMAND $OPTIONS $TAGVER $tag_files || exit
		fi
		if [ -n "$TAG" ]; then
			update_shell_title "tag sources: $TAG"

			while [ "$tag_files" ]; do
				local chunk=$(echo $tag_files | tr ' ' '\n' | head -n 100)
				printf "Tagging %d files\n" $(echo $chunk | wc -w)
				$CVS_COMMAND $OPTIONS $TAG $chunk || exit
				tag_files=$(echo $tag_files | tr ' ' '\n' | tail +101)
			done
		fi
	fi

	cd "$PACKAGE_DIR"
	if [ "$TAG_VERSION" = "yes" ]; then
		update_shell_title "tag spec: $TAGVER"
		$CVS_COMMAND $OPTIONS $TAGVER $SPECFILE || exit
	fi
	if [ -n "$TAG" ]; then
		update_shell_title "tag spec: $TAG"
		$CVS_COMMAND $OPTIONS $TAG $SPECFILE || exit
	fi
}

branch_files() {
	TAG=$1
	echo "CVS branch tag: $TAG"
	shift

	TAG_FILES="$@"

	if [ -n "$DEBUG" ]; then
		set -x
		set -v
	fi

	local OPTIONS="tag $CVS_FORCE -b"

	# branch exists?
	is_tag_a_branch $TAG
	if [ $? -eq 1 ]; then
		OPTIONS="$OPTIONS -B"
	fi

	if [ -n "$CVSROOT" ]; then
		OPTIONS="-d $CVSROOT $OPTIONS"
	fi
	cd "$PACKAGE_DIR"
	local tag_files
	for i in $TAG_FILES; do
		local fp=`nourl "$i"`
		if [ -f "$fp" ]; then
			tag_files="$tag_files $fp"
		elif [ -n "GREEDSRC" ]; then
			get_greed_sources $i
		else
			Exit_error err_no_source_in_repo $i
		fi
	done
	if [ "$tag_files" ]; then
		$CVS_COMMAND $OPTIONS $TAG $tag_files || exit
	fi

	cd "$PACKAGE_DIR"
	$CVS_COMMAND $OPTIONS $TAG $SPECFILE || exit
}


# this function should exit early if package can't be built for this arch
# this avoids unneccessary BR filling.
check_buildarch() {
	local out ret
	out=$(minirpm --short-circuit -bp --define "'prep exit 0'" --nodeps $SPECFILE 2>&1)
	ret=$?
	if [ $ret -ne 0 ]; then
		echo >&2 "$out"
		exit $ret
	fi
}

# from relup.sh
set_release() {
	local specfile="$1"
	local rel="$2"
	local newrel="$3"
	sed -i -e "
		s/^\(%define[ \t]\+_\?rel[ \t]\+\)$rel\$/\1$newrel/
		s/^\(Release:[ \t]\+\)$rel\$/\1$newrel/
	" $specfile
}

set_version() {
	local specfile="$1"
	local ver="$2"
	local newver="$3"
	sed -i -e "
		s/^\(%define[ \t]\+_\?ver[ \t]\+\)$ver\$/\1$newver/
		s/^\(Version:[ \t]\+\)$ver\$/\1$newver/
	" $specfile
}

try_upgrade() {
	if [ -n "$TRY_UPGRADE" ]; then
		local TNOTIFY TNEWVER TOLDVER
		update_shell_title "build_package: try_upgrade"

		cd "$PACKAGE_DIR"
		
		if [ -n "$FLOAT_VERSION" ]; then
			TNOTIFY=$($APPDIR/pldnotify.awk ${BE_VERBOSE:+-vDEBUG=1} $SPECFILE -n) || exit 1
		else
			TNOTIFY=$($APPDIR/pldnotify.awk ${BE_VERBOSE:+-vDEBUG=1} $SPECFILE) || exit 1
		fi

		TNEWVER=$(echo $TNOTIFY | awk '{ match($4,/\[NEW\]/); print $5 }')

		if [ -n "$TNEWVER" ]; then
			TOLDVER=`echo $TNOTIFY | awk '{ print $3; }'`
			echo "New version found, updating spec file from $TOLDVER to version $TNEWVER"
			if [ "$REVERT_BROKEN_UPGRADE" = "yes" ]; then
				cp -f $SPECFILE $SPECFILE.bak
			fi
			chmod +w $SPECFILE
			set_release $SPECFILE $PACKAGE_RELEASE 1
			set_version $SPECFILE $PACKAGE_VERSION $TNEWVER
			parse_spec
			return 1
		fi
	fi
	return 0
}

build_package() {
	update_shell_title "build_package"
	if [ -n "$DEBUG" ]; then
		set -x
		set -v
	fi

	cd "$PACKAGE_DIR"

	case "$COMMAND" in
		build )
			BUILD_SWITCH="-ba" ;;
		build-binary )
			BUILD_SWITCH="-bb" ;;
		build-source )
			BUILD_SWITCH="-bs --nodeps" ;;
		build-prep )
			BUILD_SWITCH="-bp --nodeps" ;;
		build-build )
			BUILD_SWITCH="-bc" ;;
		build-install )
			BUILD_SWITCH="-bi" ;;
		build-list )
			BUILD_SWITCH="-bl" ;;

	esac

	update_shell_title "build_package: $COMMAND"
	if [ -n "$LOGFILE" ]; then
		LOG=`eval echo $LOGFILE`
		if [ -d "$LOG" ]; then
			echo "Log file $LOG is a directory."
			echo "Parse error in the spec?"
			Exit_error err_build_fail
		fi
		if [ -n "$LASTLOG_FILE" ]; then
			echo "LASTLOG=$LOG" > $LASTLOG_FILE
		fi
		RES_FILE=$(mktemp -t builder.XXXXXX || ${TMPDIR:-/tmp}/builder.$RANDOM)

		(time eval ${NICE_COMMAND} $RPMBUILD $TARGET_SWITCH $BUILD_SWITCH -v $QUIET $CLEAN $RPMOPTS $RPMBUILDOPTS $BCOND --define \'_specdir $PACKAGE_DIR\' --define \'_sourcedir $PACKAGE_DIR\' $SPECFILE; echo $? > $RES_FILE) 2>&1 |tee $LOG
		RETVAL=`cat $RES_FILE`
		rm $RES_FILE
		if [ -n "$LOGDIROK" ] && [ -n "$LOGDIRFAIL" ]; then
			if [ "$RETVAL" -eq "0" ]; then
				mv $LOG $LOGDIROK
			else
				mv $LOG $LOGDIRFAIL
			fi
		fi
	else
		eval ${NICE_COMMAND} $RPMBUILD $TARGET_SWITCH $BUILD_SWITCH -v $QUIET $CLEAN $RPMOPTS $RPMBUILDOPTS $BCOND --define \'_specdir $PACKAGE_DIR\' --define \'_sourcedir $PACKAGE_DIR\' $SPECFILE
		RETVAL=$?
	fi
	if [ "$RETVAL" -ne "0" ]; then
		if [ -n "$TRY_UPGRADE" ]; then
			echo "\nUpgrade package to new version failed."
			if [ "$REVERT_BROKEN_UPGRADE" = "yes" ]; then
				echo "Restoring old spec file."
				mv -f $SPECFILE.bak $SPECFILE
			fi
			echo ""
		fi
		Exit_error err_build_fail
	fi
	unset BUILD_SWITCH
}

nourl() {
	echo "$@" | sed 's#\<\(ftp\|http\|https\|cvs\|svn\)://[^ ]*/##g'
}

install_required_packages() {
	run_poldek -vi $1
	return $?
}

find_spec_bcond() { # originally from /usr/lib/rpm/find-spec-bcond
	local SPEC="$1"
	awk -F"\n" '
	/^%changelog/ { exit }
	/^%bcond_with/{
		match($0, /bcond_with(out)?[ \t]+[_a-zA-Z0-9]+/);
		bcond = substr($0, RSTART + 6, RLENGTH - 6);
		gsub(/[ \t]+/, "_", bcond);
		print bcond
	}' $SPEC | LC_ALL=C sort -u
}

process_bcondrc() {
	# expand bconds from ~/.bcondrc
	# The file structure is like gentoo's package.use:
	# ---
	# * -selinux
	# samba -mysql -pgsql
	# w32codec-installer license_agreement
	# php +mysqli
	# ---
	if ([ -f $HOME/.bcondrc ] || ([ -n $HOME_ETC ] && [ -f $HOME_ETC/.bcondrc ])); then
		:
	else
		return
	fi

	SN=${SPECFILE%%\.spec}

	local bcondrc=$HOME/.bcondrc
	[ -n $HOME_ETC ] && [ -f $HOME_ETC/.bcondrc ] && bcondrc=$HOME_ETC/.bcondrc

	local bcond_avail=$(find_spec_bcond $SPECFILE)

	while read pkg flags; do
		# ignore comments
		[[ "$pkg" == \#* ]] && continue

		# any package or current package?
		if [ "$pkg" = "*" ] || [ "$pkg" = "$PACKAGE_NAME" ] || [ "$pkg" = "$SN" ]; then
			for flag in $flags; do
				local opt=${flag#[+-]}

				# use only flags which are in this package.
				if [[ $bcond_avail = *${opt}* ]]; then
					if [[ $flag = -* ]]; then
						if [[ $BCOND != *--with?${opt}* ]]; then
							BCOND="$BCOND --without $opt"
						fi
					else
						if [[ $BCOND != *--without?${opt}* ]]; then
							BCOND="$BCOND --with $opt"
						fi
					fi
				fi
			done
		fi
	done < $bcondrc
	update_shell_title "parse ~/.bcondrc: DONE!"
}

set_bconds_values() {
	update_shell_title "set bcond values"

	AVAIL_BCONDS_WITHOUT=""
	AVAIL_BCONDS_WITH=""

	if egrep -q '^# *_with' ${SPECFILE}; then
		echo >&2 "ERROR: This spec has old style bconds."
		exit 1
	fi

	if ! grep -q '^%bcond' ${SPECFILE}; then
		return
	fi

	local bcond_avail=$(find_spec_bcond $SPECFILE)
	process_bcondrc "$SPECFILE"

	update_shell_title "parse bconds"

	local opt bcond
	for opt in $bcond_avail; do
		case "$opt" in
		without_*)
			bcond=${opt#without_}
			case "$BCOND" in
			*--without?${bcond}*)
				AVAIL_BCONDS_WITHOUT="$AVAIL_BCONDS_WITHOUT <$bcond>"
				;;
			*)
				AVAIL_BCONDS_WITHOUT="$AVAIL_BCONDS_WITHOUT $bcond"
				;;
			esac
			;;
		with_*)
			bcond=${opt#with_}
			case "$BCOND" in
			*--with?${bcond}*)
				AVAIL_BCONDS_WITH="$AVAIL_BCONDS_WITH <$bcond>"
				;;
			*)
				AVAIL_BCONDS_WITH="$AVAIL_BCONDS_WITH $bcond"
				;;
			esac
			;;
		*)
			echo >&2 "ERROR: unexpected '$opt' in set_bconds_values"
			exit 1
			;;
		esac
	done
}

run_sub_builder() {
	package_name="${1}"
	update_shell_title "run_sub_builder $package_name"
	#