Add i3 cleanup script for post-migration hosts

- Add a manual oneshot script to remove i3-only packages and configs after moving a host to SwayFX and Noctalia
- Support dry-run by default with optional apply and aggressive cleanup modes

scripts/cleanup_i3_after_sway_migration.sh

@@ -0,0 +1,242 @@
+#!/usr/bin/env sh
+
+set -eu
+
+APPLY=0
+AGGRESSIVE=0
+
+SAFE_PACKAGES="
+arandr
+autorandr
+feh
+i3
+i3blocks
+i3blocks-blocklets
+i3lock-color
+i3status
+scrot
+setxkbmap
+volumeicon
+xclip
+xkbutils
+xorg-fonts
+xorg-minimal
+xss-lock
+"
+
+AGGRESSIVE_PACKAGES="
+dunst
+rofi
+blueman
+network-manager-applet
+xfce-polkit
+xfce4-clipman-plugin
+xfce4-screenshooter
+"
+
+SAFE_PATHS="
+$HOME/.config/i3
+$HOME/.config/i3blocks
+$HOME/.config/autorandr
+$HOME/.xinitrc
+"
+
+AGGRESSIVE_PATHS="
+$HOME/.config/dunst
+$HOME/.config/rofi
+"
+
+usage() {
+  cat <<'EOF'
+Usage: cleanup_i3_after_sway_migration.sh [--apply] [--aggressive]
+
+One-shot cleanup for removing i3/X11-only packages and dotfiles after a host
+has already migrated to SwayFX + Noctalia.
+
+Options:
+  --apply       perform the cleanup for real
+  --aggressive  also remove extra desktop apps/configs that were mainly useful
+                in the old i3 setup (dunst, rofi, blueman, etc.)
+  -h, --help    show this help
+
+Default mode is dry-run.
+EOF
+}
+
+have_command() {
+  command -v "$1" >/dev/null 2>&1
+}
+
+require_sway_noctalia() {
+  if [ ! -f "$HOME/.config/sway/config" ]; then
+    printf 'Error: Sway config not found at %s\n' "$HOME/.config/sway/config" >&2
+    exit 1
+  fi
+
+  if [ ! -f "$HOME/.config/noctalia/settings.json" ]; then
+    printf 'Error: Noctalia settings not found at %s\n' "$HOME/.config/noctalia/settings.json" >&2
+    exit 1
+  fi
+}
+
+append_lines() {
+  src_lines=$1
+  dst_var=$2
+
+  for line in $src_lines; do
+    line=$(printf '%s' "$line" | sed 's/^[[:space:]]*//;s/[[:space:]]*$//')
+    [ -n "$line" ] || continue
+    case "$dst_var" in
+      PACKAGES)
+        PACKAGES="$PACKAGES $line"
+        ;;
+      PATHS)
+        PATHS="$PATHS $line"
+        ;;
+      *)
+        printf 'Error: unsupported destination list: %s\n' "$dst_var" >&2
+        exit 1
+        ;;
+    esac
+  done
+}
+
+filter_installed_packages() {
+  packages=$1
+  installed=''
+
+  for pkg in $packages; do
+    pkg=$(printf '%s' "$pkg" | sed 's/^[[:space:]]*//;s/[[:space:]]*$//')
+    [ -n "$pkg" ] || continue
+    if xbps-query -s "$pkg" >/dev/null 2>&1; then
+      installed="$installed $pkg"
+    fi
+  done
+
+  printf '%s' "$installed"
+}
+
+filter_existing_paths() {
+  paths=$1
+  existing=''
+
+  for path in $paths; do
+    path=$(printf '%s' "$path" | sed 's/^[[:space:]]*//;s/[[:space:]]*$//')
+    [ -n "$path" ] || continue
+    if [ -e "$path" ] || [ -L "$path" ]; then
+      existing="$existing $path"
+    fi
+  done
+
+  printf '%s' "$existing"
+}
+
+print_section() {
+  title=$1
+  items=$2
+
+  printf '%s\n' "$title"
+  if [ -z "$items" ]; then
+    printf '  (none)\n'
+    return
+  fi
+
+  for item in $items; do
+    item=$(printf '%s' "$item" | sed 's/^[[:space:]]*//;s/[[:space:]]*$//')
+    [ -n "$item" ] || continue
+    printf '  - %s\n' "$item"
+  done
+}
+
+confirm_apply() {
+  printf 'Proceed with i3 cleanup? [y/N] '
+  IFS= read -r answer
+  case "$answer" in
+    y|Y|yes|YES)
+      ;;
+    *)
+      printf 'Aborted.\n'
+      exit 0
+      ;;
+  esac
+}
+
+run_remove_packages() {
+  packages=$1
+  [ -n "$packages" ] || return 0
+
+  if [ "$(id -u)" -eq 0 ]; then
+    xbps-remove -R $packages
+  elif have_command sudo; then
+    sudo xbps-remove -R $packages
+  else
+    printf 'Error: package removal requires root and sudo was not found.\n' >&2
+    exit 1
+  fi
+}
+
+run_remove_paths() {
+  paths=$1
+  [ -n "$paths" ] || return 0
+
+  for path in $paths; do
+    path=$(printf '%s' "$path" | sed 's/^[[:space:]]*//;s/[[:space:]]*$//')
+    [ -n "$path" ] || continue
+    rm -rf "$path"
+  done
+}
+
+while [ $# -gt 0 ]; do
+  case "$1" in
+    --apply)
+      APPLY=1
+      ;;
+    --aggressive)
+      AGGRESSIVE=1
+      ;;
+    -h|--help)
+      usage
+      exit 0
+      ;;
+    *)
+      printf 'Error: unknown argument: %s\n\n' "$1" >&2
+      usage >&2
+      exit 1
+      ;;
+  esac
+  shift
+done
+
+require_sway_noctalia
+
+PACKAGES=''
+PATHS=''
+append_lines "$SAFE_PACKAGES" PACKAGES
+append_lines "$SAFE_PATHS" PATHS
+
+if [ "$AGGRESSIVE" -eq 1 ]; then
+  append_lines "$AGGRESSIVE_PACKAGES" PACKAGES
+  append_lines "$AGGRESSIVE_PATHS" PATHS
+fi
+
+INSTALLED_PACKAGES=$(filter_installed_packages "$PACKAGES")
+EXISTING_PATHS=$(filter_existing_paths "$PATHS")
+
+printf 'Mode: %s\n' "$( [ "$APPLY" -eq 1 ] && printf 'apply' || printf 'dry-run' )"
+printf 'Aggressive cleanup: %s\n\n' "$( [ "$AGGRESSIVE" -eq 1 ] && printf 'yes' || printf 'no' )"
+
+print_section 'Packages to remove:' "$INSTALLED_PACKAGES"
+printf '\n'
+print_section 'Paths to remove:' "$EXISTING_PATHS"
+
+if [ "$APPLY" -ne 1 ]; then
+  printf '\nDry-run only. Re-run with --apply to perform the cleanup.\n'
+  exit 0
+fi
+
+confirm_apply
+
+run_remove_packages "$INSTALLED_PACKAGES"
+run_remove_paths "$EXISTING_PATHS"
+
+printf '\nCleanup complete.\n'