118 lines
3 KiB
Plaintext
118 lines
3 KiB
Plaintext
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#!/usr/bin/bash
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#
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# checkupdates: Safely print a list of pending updates.
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#
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# Copyright (c) 2013 Kyle Keen <keenerd@gmail.com>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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declare -r myname='checkupdates'
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declare -r myver='1.0.0'
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plain() {
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(( QUIET )) && return
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local mesg=$1; shift
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printf "${BOLD} ${mesg}${ALL_OFF}\n" "$@" >&1
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}
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msg() {
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(( QUIET )) && return
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local mesg=$1; shift
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printf "${GREEN}==>${ALL_OFF}${BOLD} ${mesg}${ALL_OFF}\n" "$@" >&1
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}
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msg2() {
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(( QUIET )) && return
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local mesg=$1; shift
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printf "${BLUE} ->${ALL_OFF}${BOLD} ${mesg}${ALL_OFF}\n" "$@" >&1
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}
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ask() {
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local mesg=$1; shift
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printf "${BLUE}::${ALL_OFF}${BOLD} ${mesg}${ALL_OFF}" "$@" >&1
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}
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warning() {
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local mesg=$1; shift
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printf "${YELLOW}==> $(gettext "WARNING:")${ALL_OFF}${BOLD} ${mesg}${ALL_OFF}\n" "$@" >&2
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}
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error() {
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local mesg=$1; shift
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printf "${RED}==> $(gettext "ERROR:")${ALL_OFF}${BOLD} ${mesg}${ALL_OFF}\n" "$@" >&2
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}
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# check if messages are to be printed using color
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unset ALL_OFF BOLD BLUE GREEN RED YELLOW
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if [[ -t 2 && ! $USE_COLOR = "n" ]]; then
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# prefer terminal safe colored and bold text when tput is supported
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if tput setaf 0 &>/dev/null; then
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ALL_OFF="$(tput sgr0)"
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BOLD="$(tput bold)"
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BLUE="${BOLD}$(tput setaf 4)"
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GREEN="${BOLD}$(tput setaf 2)"
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RED="${BOLD}$(tput setaf 1)"
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YELLOW="${BOLD}$(tput setaf 3)"
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else
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ALL_OFF="\e[1;0m"
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BOLD="\e[1;1m"
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BLUE="${BOLD}\e[1;34m"
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GREEN="${BOLD}\e[1;32m"
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RED="${BOLD}\e[1;31m"
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YELLOW="${BOLD}\e[1;33m"
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fi
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fi
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readonly ALL_OFF BOLD BLUE GREEN RED YELLOW
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if (( $# > 0 )); then
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echo "${myname} v${myver}"
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echo
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echo "Safely print a list of pending updates"
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echo
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echo "Usage: ${myname}"
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echo
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echo 'Note: Export the "CHECKUPDATES_DB" variable to change the path of the temporary database.'
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exit 0
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fi
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if ! type -P fakeroot >/dev/null; then
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error 'Cannot find the fakeroot binary.'
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exit 1
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fi
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if [[ -z $CHECKUPDATES_DB ]]; then
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CHECKUPDATES_DB="${TMPDIR:-/tmp}/checkup-db-${USER}/"
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fi
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trap 'rm -f $CHECKUPDATES_DB/db.lck' INT TERM EXIT
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DBPath="$(pacman-conf DBPath)"
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if [[ -z "$DBPath" ]] || [[ ! -d "$DBPath" ]]; then
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DBPath="/var/lib/pacman/"
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fi
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mkdir -p "$CHECKUPDATES_DB"
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ln -s "${DBPath}/local" "$CHECKUPDATES_DB" &> /dev/null
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if ! fakeroot -- pacman -Sy --dbpath "$CHECKUPDATES_DB" --logfile /dev/null &> /dev/null; then
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error 'Cannot fetch updates'
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exit 1
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fi
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pacman -Qu --dbpath "$CHECKUPDATES_DB" 2> /dev/null | grep -v '\[.*\]'
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exit 0
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# vim: set noet:
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