#!/bin/bash # # pacscripts : tries to print out the {pre,post}_{install,remove,upgrade} # scripts of a given package # # Copyright (c) 2009 Giulio "giulivo" Fidente <giulivo.navigante@gmail.com> # Copyright (c) 2009 Xavier Chantry <shiningxc@gmail.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/>. # # bash options set -o nounset set -o errexit declare -r myname='pacscripts' declare -r myver='@PACKAGE_VERSION@' conf="@sysconfdir@/pacman.conf" if [ ! -r "$conf" ]; then echo "ERROR: unable to read $conf" exit 1 fi eval $(awk '/DBPath/ {print $1$2$3}' "$conf") eval $(awk '/CacheDir/ {print $1$2$3}' "$conf") pac_db="${DBPath:-@localstatedir@/lib/pacman}/local" pac_cache="${CacheDir:-@localstatedir@/cache/pacman/pkg}" error() { local mesg=$1; shift printf "==> $(gettext "ERROR:") ${mesg}\n" "$@" >&2 } usage() { echo "This program prints out the {pre,post}_{install,remove,upgrade} scripts" echo "of a given package." echo "Usage: $myname pkgname|pkgfile" echo echo " OPTIONS:" echo " -h, --help Print this help message" echo " -v, --version Print program name and version" echo echo "Example: $myname gconf-editor" echo "Example: $myname gconf-editor-2.24.1-1-x86_64.pkg.tar.gz" } version() { printf "%s %s\n" "$myname" "$myver" echo 'Copyright (c) 2009 Giulio "giulivo" Fidente <giulivo.navigante@gmail.com>' echo 'Copyright (c) 2009 Xavier Chantry <shiningxc@gmail.com>' } spacman() { if [ $EUID -eq 0 ]; then pacman "$@" else if ! type -p sudo; then error "Cannot find the sudo binary! Is sudo installed?" error "Otherwise try to run the program as root" exit 1 else sudo pacman "$@" fi fi } print_db() { pkg=$(pacman -Q "$1") pkg=${pkg/ /-} if [ -f $pac_db/$pkg*/install ]; then cat $pac_db/$pkg*/install echo return 0 else error "Package $1 does not include any .INSTALL script" return 1 fi } print_pkg() { if ! bsdtar -xOf "$1" .INSTALL 2>/dev/null; then error "Package $1 does not include any .INSTALL script" return 1 fi echo } print_scriptlet() { if [ -f "$1" ]; then if bsdtar tf "$1" .PKGINFO &>/dev/null; then print_pkg "$1" return fi fi if pacman -Q "$1" &>/dev/null; then print_db "$1" return fi if ! pacman -Si $1 &>/dev/null; then error "Package $1 not found" return 1 fi url=$(spacman -Sdp $1 | tail -n1) filename=$(basename $url) if [ ! -f "$pac_cache/$filename" ]; then if ! spacman -Sdw --noconfirm $1 >&2; then error "Failed to download $1" return 1 fi echo >&2 fi print_pkg "$pac_cache/$filename" return } if [ $# -ne 1 ] ; then usage exit 1 fi case "$1" in --help|-h) usage; exit 0 ;; --version|-V) version; exit 0 ;; *) print_scriptlet $1 ;; esac