feat: add uninstall.sh mirroring install.sh (leaves libwlroots alone)

uninstall.sh

@@ -0,0 +1,48 @@
+#!/bin/sh
+# ./uninstall.sh [--prefix PREFIX]
+#
+# Removes what install.sh installed by plain copy:
+#   $DESTDIR$PREFIX/bin/kick
+#   $DESTDIR$PREFIX/bin/kick-session
+#   $DESTDIR$PREFIX/share/applications/kick.desktop
+#   $DESTDIR$PREFIX/share/wayland-sessions/kick.desktop
+#
+# Never touches libwlroots-0.20.so: install.sh only ships that fallback
+# when no system copy exists, so deleting it here could destroy a
+# distro-owned file. A leftover fallback lib is left in place.
+#
+# Defaults to PREFIX=/usr to match install.sh.
+# DESTDIR is honoured for staging (e.g. DESTDIR=/tmp/stage ./uninstall.sh).
+set -e
+cd "$(dirname "$0")"
+
+PREFIX=/usr
+if [ "$1" = "--prefix" ]; then
+    [ $# -ge 2 ] || { echo "usage: $0 [--prefix PREFIX]" >&2; exit 2; }
+    PREFIX=$2
+    shift 2
+fi
+[ $# -eq 0 ] || { echo "usage: $0 [--prefix PREFIX]" >&2; exit 2; }
+[ -n "$PREFIX" ] || { echo "uninstall: empty --prefix" >&2; exit 2; }
+case "$PREFIX" in
+    /*) ;;
+    *) echo "uninstall: --prefix must be absolute: $PREFIX" >&2; exit 2 ;;
+esac
+
+DEST=${DESTDIR:-}
+ROOT="$DEST$PREFIX"
+
+# Need root only when the target isn't writable (system prefix, no DESTDIR):
+# walk up to the first existing ancestor and test that.
+SUDO=
+_anc="$ROOT"
+while [ ! -e "$_anc" ] && [ "$_anc" != "/" ]; do
+    _anc=$(dirname "$_anc")
+done
+[ -w "$_anc" ] || SUDO=sudo
+
+set -x
+$SUDO rm -f "$ROOT/bin/kick" \
+    "$ROOT/bin/kick-session" \
+    "$ROOT/share/applications/kick.desktop" \
+    "$ROOT/share/wayland-sessions/kick.desktop"