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# Copyright 1999-2003 Gentoo Technologies, Inc.
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/eclass/rpm.eclass,v 1.8 2003/08/31 19:43:05 liquidx Exp $
# Author : Alastair Tse <liquidx@gentoo.org> (21 Jun 2003)
#
# Convienence class for extracting RPMs
#
# Basically, rpm_src_unpack does:
#
# 1. uses rpm_unpack to unpack a rpm file using rpmoffset and cpio
# 2. if it is a source rpm, it finds all .tar .tar.gz, .tgz, .tbz2, .tar.bz2,
# .zip, .ZIP and unpacks them using unpack() (with a little hackery)
# 3. deletes all the unpacked tarballs and zip files from ${WORKDIR}
#
# This ebuild now re-defines a utility function called rpm_unpack which
# basically does what rpm2targz does, except faster. It does not gzip the
# output tar again but directly extracts to ${WORKDIR}
#
# It will autodetect for rpm2cpio (included in app-arch/rpm) and if it exists
# it will use that instead of the less reliable rpmoffset. This means if a
# particular rpm cannot be read using rpmoffset, you just need to put :
#
# DEPEND="app-arch/rpm"
#
# in your ebuild and it will install and use rpm2cpio instead. If you wish
# to force your ebuild to use rpmoffset in the presence of rpm2cpio, define:
#
# USE_RPMOFFSET_ONLY="1"
ECLASS="rpm"
INHERITED="$INHERITED $ECLASS"
USE_RPMOFFSET_ONLY=${USE_RPMOFFSET_ONLY-""}
newdepend ">=app-arch/rpm2targz-9.0-r1"
# extracts the contents of the RPM in ${WORKDIR}
rpm_unpack() {
local rpmfile rpmoff decompcmd
rpmfile=$1
if [ -z "${rpmfile}" ]; then
return 1
fi
cd ${WORKDIR}
if [ -x /usr/bin/rpm2cpio -a -z "${USE_RPMOFFSET_ONLY}" ]; then
rpm2cpio ${rpmfile} | cpio -idmu --no-preserve-owner --quiet || return 1
else
rpmoff=`rpmoffset < ${rpmfile}`
[ -z "${rpmoff}" ] && return 1
decompcmd="gzip -dc"
if [ -n "`dd if=${rpmfile} skip=${rpmoff} bs=1 count=3 2>/dev/null | file - | grep bzip2`" ]; then
decompcmd="bzip2 -dc"
fi
dd ibs=${rpmoff} skip=1 if=${rpmfile} 2> /dev/null \
| ${decompcmd} \
| cpio -idmu --no-preserve-owner --quiet || return 1
fi
return 0
}
rpm_src_unpack() {
local x prefix ext myfail OLD_DISTDIR
for x in ${A}; do
myfail="failure unpacking ${x}"
ext=${x##*.}
case "$ext" in
rpm)
echo ">>> Unpacking ${x}"
prefix=${x%.rpm}
cd ${WORKDIR}
rpm_unpack ${DISTDIR}/${x} || die "${myfail}"
# find all tar.gz files and extract for srpms
if [ "${prefix##*.}" = "src" ]; then
OLD_DISTDIR=${DISTDIR}
DISTDIR=${WORKDIR}
findopts="* -maxdepth 0 -name *.tar"
for t in *.tar.gz *.tgz *.tbz2 *.tar.bz2 *.zip *.ZIP; do
findopts="${findopts} -o -name ${t}"
done
for t in $(find ${findopts} | xargs); do
unpack ${t}
rm -f ${t}
done
DISTDIR=${OLD_DISTDIR}
fi
;;
*)
unpack ${x}
;;
esac
done
}
EXPORT_FUNCTIONS src_unpack
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