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#!/bin/bash
# Copyright 1999-2005 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-src/portage/bin/quickpkg,v 1.13.2.6 2005/08/10 22:08:48 vapier Exp $

# This script tries to quickly create a Gentoo binary package using the
# VDB_PATH/category/pkg/*  files
#
# Resulting tbz2 file will be created in ${PKGDIR} ...
# default is /usr/portage/packages/All/

if [ "`whoami`" != "root" ] ; then
	echo "You must run this as root"
	exit 1
fi

export PORTAGE_DB=$(portageq vdb_path)
if [ -z "$1" ] || [ $1 == "-h" ] || [ $1 == "--help" ] ; then
	echo "QUICKPKG ver 1.2"
	echo "USAGE: quickpkg <list of pkgs>"
	echo "    a pkg can be of the form:"
	echo "        - ${PORTAGE_DB}/<CATEGORY>/<PKG-VERSION>/"
	echo "        - single depend-type atom ..."
	echo "              if portage can emerge it, quickpkg can make a package"
	echo "              for exact definitions of depend atoms, see ebuild(5)"
	echo
	echo "EXAMPLE:"
	echo "    quickpkg ${PORTAGE_DB}/net-www/apache-1.3.27-r1"
	echo "        package up apache, just version 1.3.27-r1"
	echo "    quickpkg apache"
	echo "        package up apache, all versions of apache installed"
	echo "    quickpkg =apache-1.3.27-r1"
	echo "        package up apache, just version 1.3.27-r1"
	exit 1
fi

export PKGDIR=$(portageq envvar PKGDIR)
export PORTAGE_TMPDIR=$(portageq envvar PORTAGE_TMPDIR)

source /sbin/functions.sh

# here we make a package given a little info
# $1 = package-name w/version
# $2 = category
do_pkg() {
	mkdir -p "${PORTAGE_TMPDIR}/portage-pkg" || exit 1
	chmod 0750 "${PORTAGE_TMPDIR}/portage-pkg"
	MYDIR="${PORTAGE_TMPDIR}/portage-pkg/$1"
	SRCDIR="${PORTAGE_DB}/$2/$1"
	LOG="${PORTAGE_TMPDIR}/portage-pkg/$1-quickpkglog"

	ebegin "Building package for $1"
	(
		# clean up temp directory
		rm -rf "${MYDIR}"

		# get pkg info files
		mkdir -p "${MYDIR}"/temp
		cp "${SRCDIR}"/* "${MYDIR}"/temp/

		# create filelist and a basic tbz2
		gawk '{
			if ($1 != "dir") {
				if ($1 == "obj")
					NF=NF-2
				else if ($1 == "sym")
					NF=NF-3
				print
			}
		}' "${SRCDIR}"/CONTENTS | cut -f2- -d" " - > "${MYDIR}"/filelist
		tar vjcf "${MYDIR}"/bin.tar.bz2 --files-from="${MYDIR}"/filelist --no-recursion

		# join together the basic tbz2 and the pkg info files
		xpak "${MYDIR}"/temp "${MYDIR}"/inf.xpak
		tbz2tool join "${MYDIR}"/bin.tar.bz2 "${MYDIR}"/inf.xpak "${MYDIR}"/$1.tbz2

		# move the final binary package to PKGDIR
		[ -d "${PKGDIR}"/All ] ||  mkdir -p "${PKGDIR}"/All
		[ -d "${PKGDIR}/$2" ] || mkdir -p "${PKGDIR}/$2"
		mv "${MYDIR}"/$1.tbz2 "${PKGDIR}"/All
		( cd "${PKGDIR}/$2" && ln -s ../All/$1.tbz2 )

		# cleanup again
		rm -rf "${MYDIR}"
	) >& "${LOG}"

	if [ -e "${PKGDIR}/All/$1.tbz2" ] ; then
		rm -f "${LOG}"
		PKGSTATS="${PKGSTATS}"$'\n'"$(einfo $1: $(du -h "${PKGDIR}/All/$1.tbz2" | gawk '{print $1}'))"
		eend 0
	else
		cat ${LOG}
		PKGSTATS="${PKGSTATS}"$'\n'"$(ewarn $1: not created)"
		eend 1
	fi
}

# here we parse the parameters given to use on the cmdline
export PKGERROR=""
export PKGSTATS=""
for x in "$@" ; do

	# they gave us full path
	if [ -e "${x}"/CONTENTS ] ; then
		x=$(readlink -f $x)
		pkg=$(echo ${x} | cut -d/ -f6)
		cat=$(echo ${x} | cut -d/ -f5)
		do_pkg "${pkg}" "${cat}"

	# lets figure out what they want
	else
		DIRLIST=$(portageq match / "${x}")
		if [ -z "${DIRLIST}" ] ; then
			eerror "Could not find anything to match '${x}'; skipping"
			export PKGERROR="${PKGERROR} ${x}"
			continue
		fi

		for d in ${DIRLIST} ; do
			pkg=$(echo ${d} | cut -d/ -f2)
			cat=$(echo ${d} | cut -d/ -f1)
			if [ -f "${PORTAGE_DB}/${cat}/${pkg}/CONTENTS" ] ; then
				do_pkg ${pkg} ${cat}
			elif [ -d "${PORTAGE_DB}/${cat}/${pkg}" ] ; then
				ewarn "Package '${cat}/${pkg}' was injected; skipping"
			else
				eerror "Unhandled case (${cat}/${pkg}) !"
				eerror "Please file a bug at http://bugs.gentoo.org/"
				exit 10
			fi
		done
	fi

done

if [ -z "${PKGSTATS}" ] ; then
	eerror "No packages found"
	exit 1
else
	echo $'\n'"$(einfo Packages now in ${PKGDIR}:)${PKGSTATS}"
fi
if [ ! -z "${PKGERROR}" ] ; then
	ewarn "The following packages could not be found:"
	ewarn "${PKGERROR}"
	exit 2
fi

exit 0