nixpkgs/pkgs/servers/klipper/default.nix

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{ stdenv
, lib
, fetchFromGitHub
, python3
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, unstableGitUpdater
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, makeWrapper
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}:
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stdenv.mkDerivation rec {
pname = "klipper";
version = "unstable-2023-04-24";
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src = fetchFromGitHub {
owner = "KevinOConnor";
repo = "klipper";
rev = "b17ae55f5bd3a079ab3626b1e6fd5c60416e6ba0";
sha256 = "sha256-e1luOJdTeSB/UNl/W91tBuuQ5f2fKfo1CSMQiE+A1T4=";
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};
sourceRoot = "source/klippy";
# NB: This is needed for the postBuild step
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nativeBuildInputs = [
(python3.withPackages ( p: with p; [ cffi ] ))
makeWrapper
];
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buildInputs = [ (python3.withPackages (p: with p; [ cffi pyserial greenlet jinja2 markupsafe numpy ])) ];
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# we need to run this to prebuild the chelper.
postBuild = ''
python ./chelper/__init__.py
'';
# Python 3 is already supported but shebangs aren't updated yet
postPatch = ''
for file in klippy.py console.py parsedump.py; do
substituteInPlace $file \
--replace '/usr/bin/env python2' '/usr/bin/env python'
done
'';
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# 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
# Moonraker expects `config_examples` and `docs` to be available
# under `klipper_path`
cp -r $src/docs $out/lib/docs
cp -r $src/config $out/lib/config
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mkdir -p $out/bin
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chmod 755 $out/lib/klipper/klippy.py
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makeWrapper $out/lib/klipper/klippy.py $out/bin/klippy --chdir $out/lib/klipper
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runHook postInstall
'';
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passthru.updateScript = unstableGitUpdater { url = meta.homepage; };
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meta = with lib; {
description = "The Klipper 3D printer firmware";
homepage = "https://github.com/KevinOConnor/klipper";
maintainers = with maintainers; [ lovesegfault zhaofengli cab404 ];
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platforms = platforms.linux;
license = licenses.gpl3Only;
};
}