#!/bin/sh
# Copyright 1997, 1998 Patrick Volkerding, Moorhead, MN USA
# Copyright 2002, 2004 Slackware Linux, Inc., Concord, CA USA
# Copyright 2006, 2009 Patrick Volkerding, Sebeka, MN USA
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
# EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
CWD=$(pwd)
# Breaking the help out into it's own deal
usage() {
echo "$0: Converts RPM format to standard GNU tar + GNU zip format."
echo " (view converted packages with \"less\", install and remove"
echo " with \"installpkg\", \"removepkg\", \"pkgtool\", or manually"
echo " with \"tar\")"
echo
if [ "$(basename $0)" = "rpm2tgz" ]; then
echo "Usage: $0 [OPTION] <file.rpm>"
echo " (Outputs \"file.tgz\")"
echo
echo " -s extract the install scripts to /usr/doc/\$PRGNAM-\$VERSION/"
echo " for review."
echo " -S extracts the install scripts to be executed on package installation"
echo " (only pre-install and post-install scripts used)"
echo " USE WITH CAUTION! "
echo " -n name the output package using the rpm's metadata"
echo " -r extract what the rpm's \"requires\" (dependencies)"
echo " as documention to /usr/doc/\$PRGNAM-\$VERSION/"
echo " -d attempt a wellformed slack-desc from the rpm meta data"
echo
else
echo "Usage: $0 <file.rpm>"
echo " (Outputs \"file.tar.gz\")"
fi
exit 1;
}
# Create a new temporary directory with a secure filename:
make_temp_dir() {
if [ -x "$(which mcookie)" ]; then
tempd=/tmp/tmp.$(mcookie)
mkdir -p -m 0755 $tempd
elif [ -x "$(which openssl)" ]; then
tempd=/tmp/tmp.$(dd if=/dev/urandom bs=1k count=1 2> /dev/null | openssl dgst -md5)
mkdir -p -m 0755 $tempd
elif [ -x "$(which md5)" ]; then
tempd=/tmp/tmp.$(dd if=/dev/urandom bs=1k count=1 2> /dev/null | md5)
mkdir -p -m 0755 $tempd
elif [ -x "$(which mktemp)" ]; then
tempd=$(mktemp -d)
chmod 755 $tempd
## Uncomment for insecure use, but don't blame me:
#else
# tempd=/tmp/tmp.$$
# mkdir -p -m 0755 $tempd
fi
if [ -d $tempd ]; then # success, return the name of the directory:
echo $tempd
else
echo "ERROR: Could not find mcookie, openssl, or md5."
echo " Exiting since a secure temporary directory could not be made."
exit 1
fi
}
# Get the meta data off of the rpm
get_meta_data() {
RPM=$1
PRGNAM=$(rpm -qp --qf %{NAME} $RPM )
ARCH=$(rpm -qp --qf %{ARCH} $RPM )
VERSION=$(rpm -qp --qf %{VERSION} $RPM )
BUILD=$(rpm -qp --qf %{RELEASE} $RPM )
}
if [ "$1" = "" ]; then
usage
fi
ARGS=$(getopt "hsSndr" $* )
set -- ${ARGS}
for i; do
case "$1" in
-s)
DOC_SCRIPTS="true"
shift
;;
-S)
INSTALL_SCRIPTS="true"
shift
;;
-r)
DOC_REQUIRES="true"
shift
;;
-d)
DESC="true"
shift
;;
-n)
META_NAME="true"
shift
;;
--)
shift
break
;;
esac
done
for i in $* ; do
# Determine if this is a source or binary RPM.
# If we have getrpmtype, use that. Otherwise, try "file".
if which getrpmtype 1> /dev/null 2> /dev/null; then
if getrpmtype -n $i | grep source 1> /dev/null 2> /dev/null ; then
isSource=1
else
isSource=0
fi
else # use file. This works fine on Slackware, and is the default.
if file $i | grep RPM | grep -w src 1> /dev/null 2> /dev/null ; then
isSource=1
else
isSource=0
fi
fi
# Create a temporary directory:
TMPDIR=$(make_temp_dir)
# Extract the RPM:
ofn=$TMPDIR/$(basename $i .rpm).cpio
if which rpm2cpio 1> /dev/null 2> /dev/null ; then
rpm2cpio $i > $ofn 2> /dev/null
if [ ! $? = 0 ]; then
echo "ERROR: rpm2cpio failed. (maybe $i is not an RPM?)"
rm -rf $TMPDIR
continue
fi
else # less reliable than rpm2cpio...
( dd ibs=$(rpmoffset < $i) skip=1 if=$i 2> /dev/null | gzip -dc > $ofn 2>/dev/null ) || \
( dd ibs=$(rpmoffset < $i) skip=1 if=$i 2> /dev/null | bzip2 -dc > $ofn 2>/dev/null )
fi
DEST=$TMPDIR
if [ "$isSource" = "1" ]; then
DEST=$DEST/$(basename $(basename $i .rpm) .src)
fi
mkdir -p $DEST
( cd $DEST
cpio -i -m -d < $ofn 1> /dev/null 2> /dev/null
rm -f $ofn
find . -type d -perm 700 -exec chmod 755 {} \;
)
# Save the scripts in the rpm as documentation
if [ "$DOC_SCRIPTS" = "true" ]; then
get_meta_data $i
mkdir -p $TMPDIR/usr/doc/$PRGNAM-$VERSION/
for state in PREIN POSTIN PREUN POSTUN ; do
if [ "$(rpm -qp --qf %{$state} $i )" != '(none)' ] ; then
rpm -qp --qf %{$state} $i > $TMPDIR/usr/doc/$PRGNAM-$VERSION/$state.script
fi
done
fi
# Save the scripts in the rpm to be installed
if [ "$INSTALL_SCRIPTS" = "true" ]; then
mkdir -p $TMPDIR/install
echo '#!/bin/sh' > $TMPDIR/install/doinst.sh
for state in PREIN POSTIN ; do
if [ "$(rpm -qp --qf %{$state} $i )" != '(none)' ] ; then
rpm -qp --qf %{$state} $i > $TMPDIR/install/doinst.sh
echo "" >> $TMPDIR/install/doinst.sh
fi
done
fi
# Save the rpm's requires (dependencies) as documentation
if [ "$DOC_REQUIRES" = "true" ]; then
get_meta_data $i
mkdir -p $TMPDIR/usr/doc/$PRGNAM-$VERSION/
rpm -qp --qf %{REQUIRES} $i > $TMPDIR/usr/doc/$PRGNAM-$VERSION/README-$PRGNAM-rpm-dependencies.txt
fi
# Save the rpm's summary and description as the slack-desc
if [ "$DESC" = "true" ]; then
mkdir -p $TMPDIR/install
rpm -qp --qf %{SUMMARY} $i | sed -l 70 -r "s/^(.*)/$PRGNAM: $PRGNAM - \1\n/" > $TMPDIR/install/slack-desc
rpm -qp --qf %{DESCRIPTION} $i | sed -l 70 -r "s/^/$PRGNAM: /" >> $TMPDIR/install/slack-desc
fi
# If this program was called as "rpm2targz", then repack as a plain
# tar+gz archive. If it was called as "rpm2tgz", use Slackware's
# makepkg to produce the .tgz:
if [ "$(basename $0)" = "rpm2tgz" ]; then
(
cd $TMPDIR
if [ "$META_NAME" = "true" ]; then
get_meta_data $CWD/$i
makepkg -l y -c n $CWD/$PRGNAM-$VERSION-$ARCH-${BUILD}.tgz
else
makepkg -l y -c n $CWD/$(basename $i .rpm).tgz
fi
)
else
( cd $TMPDIR ; tar cf - . ) > $(basename $i .rpm).tar
gzip -9 $(basename $i .rpm).tar
fi
# Remove temporary directory:
rm -rf $TMPDIR
done
