thomas.koppandClaude Opus 5
035c88c31c
The lists are derived rather than typed. beastix has 512 explicit packages - years of experiments among them - so taking that as "what this machine needs" would be meaningless. curate.sh combines four usage signals, each of which alone has a blind spot: shell history sees no GUI application, KDE's activity database sees no chat client, autostart sees only what starts by itself, and flatpak entries never appear in pacman -Qqe at all. That reduces 512 to 62. The split follows the data: what beastix and shron both have becomes the base, the rest of beastix becomes desktop, shron's own becomes server. base-devel is one entry in the server list rather than its 26 members. It stopped being a package group in 2022 - "pacman -Sg base-devel" now fails outright - and is a meta package today. base, grub and linux-lts are dropped entirely; they arrive with the operating system. packages.sh never removes anything. Extras are reported and left alone, for the same reason the BookStack playbook refuses to: on a server, individual packages carry mail and web services. It avoids process substitution because /bin/sh is dash on Debian and a POSIX-mode bash on macOS, and this has to run on both. Verified on beastix: 62 wanted, 0 missing, 450 extra reported and untouched; install is a no-op. The server list is a snapshot from 2026-08-06 and wants re-reading when shron is reachable again - its login session has since expired. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
89 lines
3.1 KiB
Bash
Executable File
89 lines
3.1 KiB
Bash
Executable File
#!/bin/sh
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# Compare the installed packages against the lists for this machine's role.
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#
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# packages.sh what is missing and what is extra
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# packages.sh install install what is missing
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#
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# It never removes anything. Extra packages are reported and left alone: on a
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# server, individual packages carry mail and web services, and a tool that
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# tidies up on its own is a tool that eventually takes one of them down. The
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# same caution is why the BookStack upgrade playbook refuses to remove
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# anything either.
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#
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# The lists are data, not code - plain names, one per line. That is deliberate:
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# they map onto home-manager and environment.systemPackages almost unchanged if
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# this ever moves to Nix, whereas an install script would not.
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set -eu
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ROLE=$(cat "$HOME/.config/dotconfs/role" 2>/dev/null || echo desktop)
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DIR="$(cd "$(dirname "$0")/../packages" 2>/dev/null && pwd)" || {
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echo "packages/ not found next to $0" >&2
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exit 1
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}
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# Comments and blank lines are for the reader, not the package manager.
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read_list() {
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[ -f "$1" ] || return 0
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sed -E 's/#.*//' "$1" | tr -d '\r' | awk 'NF'
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}
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case "$(uname -s)" in
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Linux)
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command -v pacman >/dev/null 2>&1 || { echo "not an Arch machine" >&2; exit 1; }
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WANT=$(read_list "$DIR/arch-base.txt"; read_list "$DIR/arch-$ROLE.txt" || true)
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HAVE=$(pacman -Qqe)
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INSTALL="yay -S --needed --noconfirm"
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command -v yay >/dev/null 2>&1 || INSTALL="sudo pacman -S --needed"
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;;
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Darwin)
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command -v brew >/dev/null 2>&1 || { echo "Homebrew not in PATH - is this a login shell?" >&2; exit 1; }
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WANT=$(read_list "$DIR/brew-$ROLE.txt")
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HAVE=$(brew leaves)
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INSTALL="brew install"
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;;
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*)
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echo "unsupported platform: $(uname -s)" >&2
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exit 1
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;;
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esac
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# Temporary files rather than process substitution: <(...) is not POSIX, and
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# /bin/sh is dash on Debian and a POSIX-mode bash on macOS. This script has to
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# run on both.
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TMP=$(mktemp -d)
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trap 'rm -rf "$TMP"' EXIT INT TERM
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printf '%s\n' "$WANT" | awk 'NF' | sort -u > "$TMP/want"
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printf '%s\n' "$HAVE" | awk 'NF' | sort -u > "$TMP/have"
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MISSING=$(comm -23 "$TMP/want" "$TMP/have")
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EXTRA=$(comm -13 "$TMP/want" "$TMP/have")
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WANT=$(cat "$TMP/want")
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HAVE=$(cat "$TMP/have")
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count() { printf '%s\n' "$1" | awk 'NF' | wc -l | tr -d ' '; }
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case "${1:-check}" in
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check)
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echo "role: $ROLE wanted: $(count "$WANT") installed: $(count "$HAVE")"
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echo
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echo "missing ($(count "$MISSING")):"
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printf '%s\n' "$MISSING" | awk 'NF' | sed 's/^/ /'
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echo
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echo "extra, not touched ($(count "$EXTRA")):"
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printf '%s\n' "$EXTRA" | awk 'NF' | sed 's/^/ /'
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;;
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install)
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if [ -z "$(printf '%s\n' "$MISSING" | awk 'NF')" ]; then
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echo "nothing to install"
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exit 0
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fi
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echo "installing:"
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printf '%s\n' "$MISSING" | awk 'NF' | sed 's/^/ /'
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# shellcheck disable=SC2086
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$INSTALL $(printf '%s ' $MISSING)
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;;
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*)
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echo "usage: $0 [check|install]" >&2
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exit 1
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;;
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esac
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