45 lines
1.2 KiB
Bash
45 lines
1.2 KiB
Bash
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#!/bin/sh
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set -ef
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find_fresh_ts() {
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{
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find "$@" -exec stat -c '%Y' '{}' '+' 2>/dev/null || :
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# duck and cover!
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echo 1
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} | sort -rn | head -n 1
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}
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_apt_update() {
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# update package lists; may fail sometimes,
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# e.g. soon-to-release channels like Debian "bullseye" @ 22.04.2021
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# (wannabe) smart package list update
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ts_sources=$(find_fresh_ts /etc/apt/ -follow -regextype egrep -regex '.+\.(list|sources)$' -type f)
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ts_lists=$(find_fresh_ts /var/lib/apt/lists/ -maxdepth 1 -regextype egrep -regex '.+_Packages(\.(bz2|gz|lz[4o]|xz|zstd?))?$' -type f)
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if [ ${ts_sources} -gt ${ts_lists} ] ; then
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apt-env.sh apt-get update
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fi
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}
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_dpkg_avail_hack() {
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VERSION_CODENAME=$(. /etc/os-release ; printf '%s' "${VERSION_CODENAME}") || :
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f="${DPKG_ADMINDIR:-/var/lib/dpkg}/available"
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# if ${VERSION_CODENAME} is empty then we're on Debian sid or so :)
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case "${VERSION_CODENAME}" in
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stretch | buster | bionic | focal )
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# ref: https://unix.stackexchange.com/a/271387/49297
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if [ -s "$f" ] ; then
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return
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fi
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/usr/lib/dpkg/methods/apt/update "${DPKG_ADMINDIR:-/var/lib/dpkg}" apt apt
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;;
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* )
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touch "$f"
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;;
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esac
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}
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_apt_update
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_dpkg_avail_hack
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exec apt-env.sh apt-get install -y --no-install-recommends --no-install-suggests "$@"
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