add installer to build package

tools/install.sh

@@ -0,0 +1,45 @@
+#!/usr/bin/env bash
+# PLWL installer — bundled inside the release tarball (build/PLWL-<version>.tar.gz).
+# Modeled after LarpixClient's install.sh: copies the app into ~/.local,
+# registers a desktop shortcut and removes the extraction folder.
+set -e
+
+echo "WARNING: Make sure you don't run this script in a folder that contains anything more than PLWL"
+echo "otherwise it may result in data loss"
+
+read -r -p "Press Enter to continue (or Ctrl+C, to cancel)..."
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+INSTALL_DIR="$HOME/.local/lib/PLWL"
+BIN_DIR="$HOME/.local/bin"
+APP_DIR="$HOME/.local/share/applications"
+
+if [ "$SCRIPT_DIR" = "$INSTALL_DIR" ] || [ "$SCRIPT_DIR" = "$HOME" ] || [ "$SCRIPT_DIR" = "/" ]; then
+  echo "install.sh: refusing to run from '$SCRIPT_DIR'" >&2
+  exit 1
+fi
+
+echo "1. Copying files..."
+mkdir -p "$INSTALL_DIR" "$BIN_DIR" "$APP_DIR"
+cp -r "$SCRIPT_DIR/." "$INSTALL_DIR/"
+
+echo "2. Creating shortcut..."
+sed -i "s|^Exec=.*|Exec=$BIN_DIR/plwl|" "$INSTALL_DIR/plwl.desktop"
+mv "$INSTALL_DIR/plwl.desktop" "$APP_DIR/plwl.desktop"
+chmod +x "$APP_DIR/plwl.desktop"
+
+echo "3. Adding executable permissions..."
+chmod +x "$INSTALL_DIR/plwl"
+ln -sfn "$INSTALL_DIR/plwl" "$BIN_DIR/plwl"
+
+echo "4. Cleaning installation..."
+rm -f "$INSTALL_DIR/install.sh"
+command -v update-desktop-database >/dev/null 2>&1 && update-desktop-database "$APP_DIR" 2>/dev/null || true
+
+echo "5. Installation completed. Cleaning up and launching..."
+rm -rf "${SCRIPT_DIR:?}"/*
+nohup "$BIN_DIR/plwl" >/dev/null 2>&1 &
+disown 2>/dev/null || true
+
+exit 0