update: remove -debug packages whose package is gone

makepkg builds pkg-debug alongside an AUR package, and removing the
package leaves it behind: the migration that dropped asdf-vm left
asdf-vm-debug. Found by 30-upgrade-from-baseline at 0c0ddf5, whose
machine kept it where a fresh install has none.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/cleanup.bats

@@ -0,0 +1,33 @@
+#!/usr/bin/env bats
+
+load test_helper
+
+@test "95-cleanup removes -debug packages whose package is gone, and keeps the rest" {
+  # -Qqm lists the AUR packages; -Qq NAME prints what matches NAME, which for
+  # herdr is herdr-bin, as it provides herdr
+  stub pacman '
+case "$1" in
+  -Qqm) printf "%s\n" asdf-vm-debug cliamp cliamp-debug herdr-bin herdr-debug ;;
+  -Qq) case "$2" in cliamp) echo cliamp ;; herdr) echo herdr-bin ;; *) exit 1 ;; esac ;;
+esac'
+  stub sudo
+  stub flatpak
+
+  run bash "$REPO/updates.d/95-cleanup.sh" < /dev/null
+  [ "$status" -eq 0 ]
+  called sudo pacman -R --noconfirm asdf-vm-debug herdr-debug
+}
+
+@test "95-cleanup leaves -debug packages alone while their packages are installed" {
+  stub pacman '
+case "$1" in
+  -Qqm) printf "%s\n" cliamp cliamp-debug ;;
+  -Qq) [ "$2" = cliamp ] && echo cliamp ;;
+esac'
+  stub sudo
+  stub flatpak
+
+  run bash "$REPO/updates.d/95-cleanup.sh" < /dev/null
+  [ "$status" -eq 0 ]
+  [ -z "$(grep 'pacman -R ' "$STUB_LOG")" ]
+}

updates.d/95-cleanup.sh

@@ -10,6 +10,17 @@ if command -v paccache &>/dev/null; then
   sudo paccache -ruk0
 fi
 
+# makepkg builds pkg-debug alongside an AUR package, and removing the package
+# leaves it behind (asdf-vm-debug). Without its package it's no use to anyone,
+# so remove it without asking. The exact name: pacman -Q herdr finds herdr-bin
+mapfile -t STRAY_DEBUG < <(pacman -Qqm 2> /dev/null | grep -- '-debug$' | while read -r pkg; do
+  [ "$(pacman -Qq "${pkg%-debug}" 2> /dev/null)" = "${pkg%-debug}" ] || echo "$pkg"
+done)
+if (( ${#STRAY_DEBUG[@]} > 0 )); then
+  echo "Removing debug symbols for packages that are gone: ${STRAY_DEBUG[*]}"
+  sudo pacman -R --noconfirm "${STRAY_DEBUG[@]}" || exit 1
+fi
+
 # Offer to remove packages that were installed as dependencies and are no
 # longer needed (packages something lists as an optional dependency are kept).
 # Ask first: one may be something you use directly. Without a terminal to ask