diff options
Diffstat (limited to 'contrib/bacman.in')
| -rwxr-xr-x | contrib/bacman.in | 313 |
1 files changed, 313 insertions, 0 deletions
diff --git a/contrib/bacman.in b/contrib/bacman.in new file mode 100755 index 00000000..b4e3b4ba --- /dev/null +++ b/contrib/bacman.in @@ -0,0 +1,313 @@ +#!@BASH_SHELL@ +# +# bacman: recreate a package from a running system +# This script rebuilds an already installed package using metadata +# stored into the pacman database and system files +# +# (c) 2008 - locci <carlocci_at_gmail_dot_com> +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. +# + +readonly progname="bacman" +readonly progver="0.2.1" + +# +# User Friendliness +# +function usage(){ + echo "This program recreates a package using pacman's db and system files" + echo "Usage: $progname <installed package name>" + echo "Example: $progname kernel26" +} + +if [ $# -ne 1 ] ; then + usage + exit 1 +fi + +if [ "$1" = "--help" -o "$1" = "-h" ] ; then + usage + exit 0 +fi + +if [ "$1" = "--version" -o "$1" = "-v" ]; then + echo "$progname version $progver" + echo "Copyright (C) 2008 locci" + exit 0 +fi + +# +# Fakeroot support +# +if [ $EUID -gt 0 ]; then + if [ -f /usr/bin/fakeroot ]; then + echo "Entering fakeroot environment" + export INFAKEROOT="1" + /usr/bin/fakeroot -u -- $0 $1 + exit $? + else + echo "WARNING: installing fakeroot or running ${progname} as root is required to" + echo " preserve the ownership permissions of files in some packages" + echo "" + fi +fi + +# +# Setting environmental variables +# +if [ ! -r @sysconfdir@/pacman.conf ]; then + echo "ERROR: unable to read @sysconfdir@/pacman.conf" + exit 1 +fi + +eval $(awk '/DBPath/ {print $1$2$3}' @sysconfdir@/pacman.conf) +pac_db="${DBPath:-@localstatedir@/lib/pacman/}/local" + +if [ ! -r @sysconfdir@/makepkg.conf ]; then + echo "ERROR: unable to read @sysconfdir@/makepkg.conf" + exit 1 +fi + +source "@sysconfdir@/makepkg.conf" +if [ -r ~/.makepkg.conf ]; then + source ~/.makepkg.conf +fi + +pkg_arch=${CARCH:-'unknown'} +pkg_dest="${PKGDEST:-$PWD}" +pkg_pkger=${PACKAGER:-'Unknown Packager'} + +pkg_name="$1" +pkg_dir="$(echo $pac_db/$pkg_name-[0-9]*)" +pkg_namver="${pkg_dir##*/}" + +# +# Checks everything is in place +# +if [ ! -d "$pac_db" ] ; then + echo "ERROR: pacman database directory ${pac_db} not found" + exit 1 +fi + +if [ ! -d "$pkg_dir" ] ; then + echo "ERROR: package ${pkg_name} not found in pacman database" + exit 1 +fi + +# +# Begin +# +echo Package: ${pkg_namver} +work_dir=$(mktemp -d -p /tmp) +cd "$work_dir" || exit 1 + +# +# File copying +# +echo "Copying package files..." + +cat "$pkg_dir"/files | +while read i; do + if [ -z "$i" ] ; then + continue + fi + + if [[ "$i" =~ %[A-Z]*% ]] ; then + current=$i + continue + fi + + case $current in + %FILES%) + ret=0 + if [ -e "/$i" ]; then + bsdtar -cnf - "/$i" 2> /dev/null | bsdtar -xpf - + + # Workaround to bsdtar not reporting a missing file as an error + if [ ! -e "$work_dir/$i" -a ! -L "$work_dir/$i" ]; then + echo "" + echo "ERROR: unable to add /$i to the package" + echo " If your user does not have permssion to read this file then" + echo " you will need to run $progname as root" + rm -rf "$work_dir" + exit 1 + fi + else + echo "" + echo "WARNING: package file /$i is missing" + echo "" + fi + + + ;; + esac +done + +ret=$? +if [ $ret -ne 0 ]; then + rm -rf "$work_dir" + exit 1 +fi + +pkg_size=$(du -sk | awk '{print $1 * 1024}') + +# +# .PKGINFO stuff +# +echo Generating .PKGINFO metadata... +echo "# Generated by $progname $progver" > .PKGINFO +if [ "$INFAKEROOT" = "1" ]; then + echo "# Using $(fakeroot -v)" >> .PKGINFO +fi +echo "# $(LC_ALL=C date)" >> .PKGINFO +echo "#" >> .PKGINFO + +cat "$pkg_dir"/{desc,files,depends} | +while read i; do + if [[ -z "$i" ]]; then + continue; + fi + + if [[ "$i" =~ %[A-Z]*% ]] ; then + current=$i + continue + fi + + case "$current" in + # desc + %NAME%) + echo "pkgname = $i" >> .PKGINFO + ;; + %VERSION%) + echo "pkgver = $i" >> .PKGINFO + ;; + %DESC%) + echo "pkgdesc = $i" >> .PKGINFO + ;; + %URL%) + echo "url = $i" >> .PKGINFO + ;; + %LICENSE%) + echo "license = $i" >> .PKGINFO + ;; + %ARCH%) + echo "arch = $i" >> .PKGINFO + ;; + %BUILDDATE%) + echo "builddate = $(date -u "+%s")" >> .PKGINFO + ;; + %PACKAGER%) + echo "packager = $pkg_pkger" >> .PKGINFO + ;; + %SIZE%) + echo "size = $pkg_size" >> .PKGINFO + ;; + %GROUPS%) + echo "group = $i" >> .PKGINFO + ;; + %REPLACES%) + echo "replaces = $i" >> .PKGINFO + ;; + %EPOCH%) + echo "epoch = $i" >> .PKGINFO + ;; + %FORCE%) + echo "force = true" >> .PKGINFO + ;; + + # files + %BACKUP%) + # strip the md5sum after the tab + echo "backup = ${i%%$'\t'*}" >> .PKGINFO + ;; + + # depends + %DEPENDS%) + echo "depend = $i" >> .PKGINFO + ;; + %OPTDEPENDS%) + echo "optdepend = $i" >> .PKGINFO + ;; + %CONFLICTS%) + echo "conflict = $i" >> .PKGINFO + ;; + %PROVIDES%) + echo "provides = $i" >> .PKGINFO + ;; + esac +done + +comp_files=".PKGINFO" + +if [ -f "$pkg_dir/install" ] ; then + cp "$pkg_dir/install" "$work_dir/.INSTALL" + comp_files+=" .INSTALL" +fi +if [ -f $pkg_dir/changelog ] ; then + cp "$pkg_dir/changelog" "$work_dir/.CHANGELOG" + comp_files+=" .CHANGELOG" +fi + +# +# Fixes owner:group and permissions for .PKGINFO, .CHANGELOG, .INSTALL +# +chown root:root "$work_dir"/{.PKGINFO,.CHANGELOG,.INSTALL} 2> /dev/null +chmod 644 "$work_dir"/{.PKGINFO,.CHANGELOG,.INSTALL} 2> /dev/null + +# +# Generate the package +# +echo "Generating the package..." + +case "$PKGEXT" in + *tar.gz) EXT=${PKGEXT%.gz} ;; + *tar.bz2) EXT=${PKGEXT%.bz2} ;; + *tar.xz) EXT=${PKGEXT%.xz} ;; + *tar) EXT=${PKGEXT} ;; + *) echo "WARNING: '%s' is not a valid archive extension." \ + "$PKGEXT" ; EXT=$PKGEXT ;; +esac + +pkg_file="$pkg_dest/$pkg_namver-$pkg_arch${PKGEXT}" +ret=0 + +# when fileglobbing, we want * in an empty directory to expand to +# the null string rather than itself +shopt -s nullglob +# TODO: Maybe this can be set globally for robustness +shopt -s -o pipefail +bsdtar -cf - $comp_files * | +case "$PKGEXT" in + *tar.gz) gzip -c -f -n ;; + *tar.bz2) bzip2 -c -f ;; + *tar.xz) xz -c -z - ;; + *tar) cat ;; +esac > ${pkg_file} || ret=$? + +if [ $ret -ne 0 ]; then + echo "ERROR: unable to write package to $pkg_dest" + echo " Maybe the disk is full or you do not have write access" + rm -rf "$work_dir" + exit 1 +fi + +rm -rf "$work_dir" + +echo Done + +exit 0 + +# vim: set ts=2 sw=2 noet: + |