Mario Fetka
125 lines
3.4 KiB
Bash
Executable File
125 lines
3.4 KiB
Bash
Executable File
#!/bin/sh
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set -eu
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PROGRAM=${0##*/}
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ROOT=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
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PACKAGE_DIR="$ROOT/packages"
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HOLD_PACKAGES="libmailutils9t64 libmu-dbm9t64 mailutils-common libspf2-2t64 libsrs2-0"
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die()
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{
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echo "$PROGRAM: $*" >&2
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exit 1
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}
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need_root()
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{
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[ "$(id -u)" -eq 0 ] || die "run this installer as root"
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}
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check_target()
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{
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[ -r /etc/os-release ] || die "cannot identify the operating system"
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. /etc/os-release
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[ "${ID:-}" = debian ] || die "this bundle targets Debian"
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[ "${VERSION_CODENAME:-}" = trixie ] ||
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die "this bundle targets Debian Trixie, found ${VERSION_CODENAME:-unknown}"
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command -v apt-get >/dev/null || die "apt-get is required"
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command -v apt-mark >/dev/null || die "apt-mark is required"
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command -v dpkg-deb >/dev/null || die "dpkg-deb is required"
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}
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verify_bundle()
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{
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[ -f "$ROOT/SHA256SUMS" ] || die "SHA256SUMS is missing"
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(cd "$ROOT" && sha256sum -c SHA256SUMS)
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}
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find_package_file()
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{
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wanted=$1
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found=
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for file in "$PACKAGE_DIR"/*.deb; do
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[ -f "$file" ] || continue
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package=$(dpkg-deb -f "$file" Package)
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if [ "$package" = "$wanted" ]; then
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[ -z "$found" ] || die "more than one $wanted package is present"
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found=$file
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fi
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done
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[ -n "$found" ] || die "required package $wanted is absent"
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printf '%s\n' "$found"
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}
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patched_version()
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{
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file=$(find_package_file "$1")
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version=$(dpkg-deb -f "$file" Version)
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case $version in
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*+bongo*) ;;
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*) die "$1 does not carry a Bongo patched version: $version" ;;
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esac
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printf '%s\n' "$version"
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}
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unhold()
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{
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need_root
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present=
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for package in $HOLD_PACKAGES; do
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if dpkg-query -W -f='${Status}\n' "$package" 2>/dev/null |
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grep -q '^install ok installed$'; then
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present="$present $package"
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fi
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done
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[ -z "$present" ] || apt-mark unhold $present
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echo "Bongo patched-library holds removed."
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}
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install_bundle()
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{
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need_root
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check_target
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verify_bundle
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install_files=
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for package in $HOLD_PACKAGES; do
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version=$(patched_version "$package")
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file=$(find_package_file "$package")
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echo "Selected $package $version"
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install_files="$install_files $file"
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done
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bongo_file=$(find_package_file bongo)
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echo "Selected bongo $(dpkg-deb -f "$bongo_file" Version)"
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install_files="$install_files $bongo_file"
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# apt resolves ordinary Trixie dependencies and displays any MTA package
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# replacement before it proceeds. Bongo itself intentionally remains
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# outside the hold set so subsequent Bongo releases remain upgradeable.
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apt-get install $install_files
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for package in $HOLD_PACKAGES; do
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expected=$(patched_version "$package")
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installed=$(dpkg-query -W -f='${Version}' "$package")
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[ "$installed" = "$expected" ] ||
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die "$package version mismatch: expected $expected, found $installed"
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done
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apt-mark hold $HOLD_PACKAGES
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echo
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echo "Bongo and its patched libraries are installed."
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echo "Bongo remains upgradeable; only patched libraries are held."
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echo "Run '$PROGRAM --unhold' before deliberately replacing those libraries."
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echo "Run 'bongo-setup' before enabling bongo.service on a new server."
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}
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case ${1:-install} in
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install) install_bundle ;;
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--unhold) unhold ;;
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--help|-h)
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echo "Usage: $PROGRAM [install|--unhold]"
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;;
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*) die "unknown option: $1" ;;
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esac
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