MIAOU-BASH is a collection of settings and helpers for leveraging BASH.
Developer-friendly, it may be used as solo package with or without the miaou project.
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#!/bin/bash
source "$MIAOU_BASH_DIR"/lib/functions.sh
function usage { local BASECMD BASECMD=$(basename "$0") echo "usage: $BASECMD <packages...>" case $(os-release) in debian) echo 'idempotent debian package installation : update if necessary, install only if not yet done' ;; arch) echo 'idempotent archlinux package installation : update if necessary, install only if not yet done' ;; esac
exit 1 }
[ "$(id -u)" -ne 0 ] && echo 'root privilege required' && exit 2 [[ $# -lt 1 ]] && usage
case $(os-release) in debian) if [ "$(date --date='-12 hours' +%s)" -gt "$(date -d "$(stat -c %y /var/lib/apt/lists/partial)" +%s)" ]; then echo "updating repositoring..." apt-get update fi
for i in "$@"; do if ! dpkg -l "$i" 2>/dev/null | grep -q ^ii; then sudo apt-get install -y "$i" elif [ -n "${VERBOSE+x}" ] && $VERBOSE; then echo "apt package <$i> already installed!" fi done ;; arch) for i in "$@"; do if ! pacman -Ql "$i" 2>/dev/null | grep -q ^ii; then sudo pacman -S "$i" elif [ -n "${VERBOSE+x}" ] && $VERBOSE; then echo "pacman package <$i> already installed!" fi done ;; *) echo "unknown os release <$(os-release)>!" && exit 2 ;; esac
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