#!/bin/bash # # 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/>. # shopt -s extglob shopt -s nullglob readonly progname="bacman" readonly progver="0.2.1" # # User Friendliness # 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 (( $# != 1 )); then usage exit 1 fi if [[ $1 == "--help" || $1 == "-h" ]]; then usage exit 0 fi if [[ $1 == "--version" || $1 == "-v" ]]; then echo "$progname version $progver" echo "Copyright (C) 2008 locci" exit 0 fi # # Fakeroot support # if (( EUID )); then if [[ -f /usr/bin/fakeroot ]]; then echo "Entering fakeroot environment" export INFAKEROOT="1" /usr/bin/fakeroot -u -- "$0" "$@" 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="$1" pkg_dir=("$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 (( ${#pkg_dir[@]} != 1 )); then printf "ERROR: %d entries for package %s found in pacman database\n" \ ${#pkg_dir[@]} "${pkg_name}" printf "%s\n" "${pkg_dir[@]}" exit 1 fi if [[ ! -d $pkg_dir ]]; then printf "ERROR: package %s is found in pacman database,\n" "${pkg_name}" printf " but \`%s' is not a directory\n" "${pkg_dir}" exit 1 fi # # Begin # echo "Package: ${pkg_namver}" work_dir=$(mktemp -d --tmpdir bacman.XXXXXXXXXX) 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 || -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 )); then rm -rf "$work_dir" exit 1 fi pkg_size=$(du -sk | awk '{print $1 * 1024}') # # .PKGINFO stuff # TODO adopt makepkg's write_pkginfo() into this or scripts/library # 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} | 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 ;; %DEPENDS%) echo "depend = $i" >> .PKGINFO ;; %OPTDEPENDS%) echo "optdepend = $i" >> .PKGINFO ;; %CONFLICTS%) echo "conflict = $i" >> .PKGINFO ;; %PROVIDES%) echo "provides = $i" >> .PKGINFO ;; # files %BACKUP%) # strip the md5sum after the tab echo "backup = ${i%%$'\t'*}" >> .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 "$work_dir"/{.PKGINFO,.CHANGELOG,.INSTALL} 2> /dev/null # # Generate the package # echo "Generating the package..." pkg_file="$pkg_dest/$pkg_namver-$pkg_arch${PKGEXT}" ret=0 # 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.Z) compress -c -f ;; *tar) cat ;; *) echo "WARNING: '%s' is not a valid archive extension." \ "$PKGEXT" >&2; cat ;; esac > "${pkg_file}"; ret=$? if (( ret )); 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: