depot/third_party/nixpkgs/pkgs/servers/klipper/default.nix

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{ stdenv
, lib
, fetchFromGitHub
, python2
, unstableGitUpdater
}:
stdenv.mkDerivation rec {
pname = "klipper";
version = "unstable-2021-12-24";
src = fetchFromGitHub {
owner = "KevinOConnor";
repo = "klipper";
rev = "247cd753e283e70a9949e76d0ba669d99c0eb144";
sha256 = "sha256-65wxhE/XqNK6ly+fxZFLjtImvpJlgU54RStUve40CJA=";
};
sourceRoot = "source/klippy";
# there is currently an attempt at moving it to Python 3, but it will remain
# Python 2 for the foreseeable future.
# c.f. https://github.com/KevinOConnor/klipper/pull/3278
# NB: This is needed for the postBuild step
nativeBuildInputs = [ (python2.withPackages ( p: with p; [ cffi ] )) ];
buildInputs = [ (python2.withPackages (p: with p; [ cffi pyserial greenlet jinja2 ])) ];
# we need to run this to prebuild the chelper.
postBuild = "python2 ./chelper/__init__.py";
# NB: We don't move the main entry point into `/bin`, or even symlink it,
# because it uses relative paths to find necessary modules. We could wrap but
# this is used 99% of the time as a service, so it's not worth the effort.
installPhase = ''
runHook preInstall
mkdir -p $out/lib/klipper
cp -r ./* $out/lib/klipper
chmod 755 $out/lib/klipper/klippy.py
runHook postInstall
'';
passthru.updateScript = unstableGitUpdater { url = meta.homepage; };
meta = with lib; {
description = "The Klipper 3D printer firmware";
homepage = "https://github.com/KevinOConnor/klipper";
maintainers = with maintainers; [ lovesegfault zhaofengli ];
platforms = platforms.linux;
license = licenses.gpl3Only;
};
}