Initial commit, with working version

install.sh

@@ -0,0 +1,44 @@
+#!/bin/sh
+# SPDX-License-Identifier: MIT
+# Register the mouselaser driver with SteamVR.
+# Only touches ~/.config/openvr/openvrpaths.vrpath (a backup is made first).
+set -eu
+DIR="$(cd "$(dirname "$0")" && pwd)/driver/mouselaser"
+VRPATHS="$HOME/.config/openvr/openvrpaths.vrpath"
+VRPATHREG=/opt/steamvr/bin/linuxarm64/vrpathreg
+
+[ -f "$DIR/bin/linuxarm64/driver_mouselaser.so" ] || {
+    echo "Driver not built. Run: cmake -S . -B build -G Ninja && cmake --build build"
+    exit 1
+}
+
+# Refuse if a mouselaser driver is already registered from another path:
+# two drivers with the same name would conflict.
+OTHER=$(python3 - "$VRPATHS" "$DIR" <<'PY'
+import json, os, sys
+try:
+    paths = json.load(open(sys.argv[1])).get("external_drivers") or []
+except FileNotFoundError:
+    paths = []
+for p in paths:
+    if os.path.realpath(p) == os.path.realpath(sys.argv[2]):
+        continue
+    try:
+        if json.load(open(os.path.join(p, "driver.vrdrivermanifest"))).get("name") == "mouselaser":
+            print(p)
+    except (OSError, ValueError):
+        if os.path.basename(p.rstrip("/")) == "mouselaser":
+            print(p)
+PY
+)
+if [ -n "$OTHER" ]; then
+    echo "Another mouselaser driver is already registered:"
+    echo "$OTHER"
+    echo "Remove it first:  $VRPATHREG removedriver <path>"
+    exit 1
+fi
+
+[ -f "$VRPATHS" ] && cp "$VRPATHS" "$VRPATHS.bak-mouselaser"
+"$VRPATHREG" adddriver "$DIR"
+"$VRPATHREG" show | grep -A5 -i "external drivers" || true
+echo "Registered. Reboot to load it (on the Steam Frame, restarting SteamVR also restarts gamescope)."