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Revision 1.8 - (show annotations) (download)
Sun Aug 31 19:43:05 2003 UTC (11 years ago) by liquidx
Branch: MAIN
Changes since 1.7: +2 -2 lines
now depends on rpm2targz-9.0-r1 with bzip2 support

1 # Copyright 1999-2003 Gentoo Technologies, Inc.
2 # Distributed under the terms of the GNU General Public License v2
3 # $Header: /home/cvsroot/gentoo-x86/eclass/rpm.eclass,v 1.7 2003/06/25 23:50:02 liquidx Exp $
4
5 # Author : Alastair Tse <liquidx@gentoo.org> (21 Jun 2003)
6 #
7 # Convienence class for extracting RPMs
8 #
9 # Basically, rpm_src_unpack does:
10 #
11 # 1. uses rpm_unpack to unpack a rpm file using rpmoffset and cpio
12 # 2. if it is a source rpm, it finds all .tar .tar.gz, .tgz, .tbz2, .tar.bz2,
13 # .zip, .ZIP and unpacks them using unpack() (with a little hackery)
14 # 3. deletes all the unpacked tarballs and zip files from ${WORKDIR}
15 #
16 # This ebuild now re-defines a utility function called rpm_unpack which
17 # basically does what rpm2targz does, except faster. It does not gzip the
18 # output tar again but directly extracts to ${WORKDIR}
19 #
20 # It will autodetect for rpm2cpio (included in app-arch/rpm) and if it exists
21 # it will use that instead of the less reliable rpmoffset. This means if a
22 # particular rpm cannot be read using rpmoffset, you just need to put :
23 #
24 # DEPEND="app-arch/rpm"
25 #
26 # in your ebuild and it will install and use rpm2cpio instead. If you wish
27 # to force your ebuild to use rpmoffset in the presence of rpm2cpio, define:
28 #
29 # USE_RPMOFFSET_ONLY="1"
30
31 ECLASS="rpm"
32 INHERITED="$INHERITED $ECLASS"
33
34 USE_RPMOFFSET_ONLY=${USE_RPMOFFSET_ONLY-""}
35
36 newdepend ">=app-arch/rpm2targz-9.0-r1"
37
38 # extracts the contents of the RPM in ${WORKDIR}
39 rpm_unpack() {
40 local rpmfile rpmoff decompcmd
41 rpmfile=$1
42 if [ -z "${rpmfile}" ]; then
43 return 1
44 fi
45
46 cd ${WORKDIR}
47 if [ -x /usr/bin/rpm2cpio -a -z "${USE_RPMOFFSET_ONLY}" ]; then
48 rpm2cpio ${rpmfile} | cpio -idmu --no-preserve-owner --quiet || return 1
49 else
50 rpmoff=`rpmoffset < ${rpmfile}`
51 [ -z "${rpmoff}" ] && return 1
52
53 decompcmd="gzip -dc"
54 if [ -n "`dd if=${rpmfile} skip=${rpmoff} bs=1 count=3 2>/dev/null | file - | grep bzip2`" ]; then
55 decompcmd="bzip2 -dc"
56 fi
57 dd ibs=${rpmoff} skip=1 if=${rpmfile} 2> /dev/null \
58 | ${decompcmd} \
59 | cpio -idmu --no-preserve-owner --quiet || return 1
60 fi
61
62 return 0
63 }
64
65 rpm_src_unpack() {
66 local x prefix ext myfail OLD_DISTDIR
67
68 for x in ${A}; do
69 myfail="failure unpacking ${x}"
70 ext=${x##*.}
71 case "$ext" in
72 rpm)
73 echo ">>> Unpacking ${x}"
74 prefix=${x%.rpm}
75 cd ${WORKDIR}
76 rpm_unpack ${DISTDIR}/${x} || die "${myfail}"
77
78 # find all tar.gz files and extract for srpms
79 if [ "${prefix##*.}" = "src" ]; then
80 OLD_DISTDIR=${DISTDIR}
81 DISTDIR=${WORKDIR}
82 findopts="* -maxdepth 0 -name *.tar"
83 for t in *.tar.gz *.tgz *.tbz2 *.tar.bz2 *.zip *.ZIP; do
84 findopts="${findopts} -o -name ${t}"
85 done
86 for t in $(find ${findopts} | xargs); do
87 unpack ${t}
88 rm -f ${t}
89 done
90 DISTDIR=${OLD_DISTDIR}
91 fi
92 ;;
93 *)
94 unpack ${x}
95 ;;
96 esac
97 done
98
99 }
100
101 EXPORT_FUNCTIONS src_unpack

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