117 lines
4.4 KiB
Nix
117 lines
4.4 KiB
Nix
# Python packages forza_trigger.py imports that aren't in nixpkgs. Returns
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# an attrset consumed by ./default.nix.
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#
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# Bumping a version: change `version` and `hash`, then `nix build` — Nix
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# fails with the new sha256 in the error message, paste it back in.
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{
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lib,
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pkgs,
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python ? pkgs.python3,
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}:
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let
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py = python.pkgs;
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in
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rec {
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# DualSense controller library (yesbotics/dualsense-controller-python).
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# Bundles its own hidapi-cffi binding; replaces the previous pydualsense +
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# hidapi-usb pair. The library's transport model writes the HID output
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# report on every input report tick BUT only when an output state actually
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# changed since the last write — so we get on-demand HID writes for free
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# without disabling any background thread (the thing pydualsense made us
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# work around at ~250 Hz). BT CRC32 is computed correctly inside the
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# library's Bt31OutReport.to_bytes.
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dualsense-controller = py.buildPythonPackage rec {
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pname = "dualsense-controller";
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version = "0.3.1";
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pyproject = true;
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# PyPI normalizes the sdist filename to underscore form (PEP 625) but
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# the project URL slug is dasherized. fetchPypi assumes they match;
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# passing the underscored pname matches the on-disk filename.
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src = py.fetchPypi {
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pname = "dualsense_controller";
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inherit version;
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hash = "sha256-yy1MQeRPqaLvoXaAigQd3gPFsFLbwKqrD4mP2zQqcFw=";
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};
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# Library bug fix: trigger-effect params 8-10 are never propagated to
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# the OUT report. effect.vibration() puts the frequency in param9, so
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# without this patch every vibration call ships frequency=0 to the
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# controller and the trigger sits silently in vibration mode. The
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# patch fixes update_out_report to read params 8/9/10 directly off
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# the parent TriggerEffect state. Confirmed live with strace before
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# patching: byte 31 (= L2 param9) was 0 every tick during slip events.
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patches = [
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../../../patches/dualsense-controller/0001-propagate-trigger-effect-params-8-10.patch
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];
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nativeBuildInputs = [ py.poetry-core ];
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# Upstream's pyproject pins pyee ^11 and cffi ^1.15. nixpkgs ships
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# pyee 13 and cffi 2. The library only uses stable APIs — pyee
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# `EventEmitter`/`on`/`emit` and cffi `FFI`/`cdef`/`dlopen`/`new`/
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# `buffer` — that work unchanged on the newer versions. Relax both.
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pythonRelaxDeps = [
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"pyee"
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"cffi"
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];
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propagatedBuildInputs = with py; [
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pyee
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cffi
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deprecated
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];
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# Same hidapi-binding pattern as our previous hidapi-usb derivation.
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# The library walks a tuple of soname strings via ffi.dlopen() until
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# one resolves; pin the two Linux hidraw entries to absolute store
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# paths so the wrapped Python in writePython3Bin doesn't need
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# LD_LIBRARY_PATH wrapping. The libusb / iohidmanager / dylib / dll
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# entries are dead code on Linux. --replace-fail makes a rename in
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# upstream's tuple a loud build error rather than a silent ImportError
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# at runtime.
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postPatch = ''
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substituteInPlace src/dualsense_controller/core/hidapi/hidapi.py \
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--replace-fail "'libhidapi-hidraw.so'," "'${pkgs.hidapi}/lib/libhidapi-hidraw.so'," \
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--replace-fail "'libhidapi-hidraw.so.0'," "'${pkgs.hidapi}/lib/libhidapi-hidraw.so.0',"
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'';
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pythonImportsCheck = [ "dualsense_controller" ];
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meta = {
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description = "Use DualSense Controller with Python";
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homepage = "https://github.com/yesbotics/dualsense-controller-python";
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license = lib.licenses.mit;
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};
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};
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# Single-file Forza UDP packet parser (nettrom/forza_motorsport). Pinned to
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# a known-good commit; the repo is dormant (last commit 2021) but the FH4
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# packet layout is frozen and FH5 reuses it byte-for-byte.
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fdp = py.buildPythonPackage {
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pname = "fdp";
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version = "0-unstable-2021-05-28";
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format = "other";
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src = pkgs.fetchurl {
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url = "https://raw.githubusercontent.com/nettrom/forza_motorsport/61845cb7ff4082211292a51ce3c49edbfd2d6503/fdp.py";
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hash = "sha256-osFaVF9VaEzU4dp3x6KN6OF7SXsd9ZBwvilU+xTT7mM=";
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};
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dontUnpack = true;
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installPhase = ''
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runHook preInstall
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install -Dm644 $src $out/${python.sitePackages}/fdp.py
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runHook postInstall
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'';
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pythonImportsCheck = [ "fdp" ];
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meta = {
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description = "ForzaDataPacket — Forza Motorsport / Horizon UDP packet parser";
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homepage = "https://github.com/nettrom/forza_motorsport";
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license = lib.licenses.mit;
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};
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};
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}
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