new rpm extraction convienence eclass

1 files changed, 78 insertions, 0 deletions

diff --git a/eclass/rpm.eclass b/eclass/rpm.eclass
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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 1.1 2003/06/21 13:24:12 liquidx Exp $
+
+# Author : Alastair Tse <liquidx@gentoo.org> (21 Jun 2003)
+#
+# Convienence class for extracting RPMs
+# 
+# Basically, rpm_src_unpack does:
+#
+# 1. convert all *.rpm in ${A} to tar.gz, non rpm files are passed through 
+#    unpack()
+# 2. unpacks the tar.gz into ${WORKDIR}
+# 3. 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)
+# 4. deletes all the unpacked tarballs and zip files from ${WORKDIR}
+#
+# Warning !!
+#
+# Sometimes, pure rpm2targz will fail on certain RPMs (eg: scim-chinese)
+# because their code for detecting RPM header offset is not good enough.
+# In that case, you need to add app-arch/rpm to your DEPEND. rpm2targz
+# will automatically find rpm2cpio and use it instead of its own rpmoffset.
+#
+# Also, rpm2targz-8.0 behaves differently from rpm2targz-9.0. The newer
+# versions will autodetect rpm2cpio whereas 8.0 doesn't. Also, 9.0 will
+# detect if it is a source rpm and place files in ${prefix%.src} whereas
+# 8.0 will just place them in the current directory. This eclass DEPENDS
+# on rpm2targz 9.0.
+
+ECLASS="rpm"
+INHERITED="$INHERITED $ECLASS"
+
+newdepend ">=app-arch/rpm2targz-0.9"
+
+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}
+			# convert rpm to tar.gz and then extract
+			rpm2targz ${DISTDIR}/${x} || die "${myfail}"
+			if [ "$(tar tzvf ${WORKDIR}/${prefix}.tar.gz | wc -l)" -lt 2 ]; then
+				die "rpm2targz failed, produced an empty tar.gz"
+			fi
+			tar xz --no-same-owner -f ${WORKDIR}/${prefix}.tar.gz || die "${myfail}"
+			rm -f ${WORKDIR}/${prefix}.tar.gz
+			
+			# find all tar.gz files and extract for srpms
+			if [ "${prefix##*.}" = "src" ]; then
+				OLD_DISTDIR=${DISTDIR}
+				DISTDIR=${WORKDIR}
+				findopts="-name *.tar"
+				for t in *.tar.gz *.tgz *.tbz2 *.tar.bz2 *.zip *.ZIP; do
+					findopts="${findopts} -o -name ${t}"
+				done
+				for t in $(find ${prefix%.src} ${findopts} | xargs); do
+					unpack ${t}
+					rm -f ${t}
+				done
+				DISTDIR=${OLD_DISTDIR}
+			fi				
+			;;
+		*)
+			unpack ${x}
+			;;
+		esac
+	done
+			
+}
+
+EXPORT_FUNCTIONS src_unpack