diff options
Diffstat (limited to 'justfile')
| -rw-r--r-- | justfile | 35 |
1 files changed, 35 insertions, 0 deletions
@@ -448,6 +448,41 @@ etc-untrack +paths: just etc-reset {{ paths }} just etc-rm {{ paths }} +# Restore live /etc/<path> to pristine pacman contents (bypasses the repo) +etc-restore +paths: + #!/usr/bin/env bash + set -eo pipefail + for raw in {{ paths }}; do + case "$raw" in + *..*|*/./*|./*|../*) echo "error: unsafe path: $raw" >&2; exit 1 ;; + esac + p=${raw#/}; p=${p#etc/} + live=/etc/$p + [ -e "$live" ] || { echo "error: $live does not exist" >&2; exit 1; } + pkg=$(pacman -Qoq "$live" 2>/dev/null) \ + || { echo "error: $live has no owning package; nothing to restore to" >&2; exit 1; } + ver=$(pacman -Q "$pkg" | awk '{print $2}') + arch=$(pacman -Qi "$pkg" | awk -F': *' '/^Architecture/{print $2; exit}') + cache="" + for ext in zst xz; do + c="/var/cache/pacman/pkg/${pkg}-${ver}-${arch}.pkg.tar.${ext}" + [ -f "$c" ] && { cache="$c"; break; } + done + if [ -z "$cache" ]; then + echo " fetching $pkg from mirror..." >&2 + doas pacman -Sw --noconfirm "$pkg" >/dev/null || true + for ext in zst xz; do + c="/var/cache/pacman/pkg/${pkg}-${ver}-${arch}.pkg.tar.${ext}" + [ -f "$c" ] && { cache="$c"; break; } + done + fi + [ -n "$cache" ] || { echo "error: no cache for ${pkg}-${ver}; mirror may have moved past installed version" >&2; exit 1; } + bsdtar -tf "$cache" "${live#/}" >/dev/null 2>&1 \ + || { echo "error: $live not present in $pkg archive" >&2; exit 1; } + bsdtar -xOf "$cache" "${live#/}" | doas tee "$live" >/dev/null + echo "restored (from $pkg): $live" + done + # ═══════════════════════════════════════════════════════════════════ # Package management # ═══════════════════════════════════════════════════════════════════ |