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https://github.com/ilyakooo0/nixpkgs.git
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buildPythonPackage: refactor
This commit is contained in:
Frederik Rietdijk
parent
c6a7d8e10f
commit
42bad32e13
@ -523,7 +523,7 @@ All parameters from `mkDerivation` function are still supported.
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* `postShellHook`: Hook to execute commands after `shellHook`.
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* `makeWrapperArgs`: A list of strings. Arguments to be passed to `makeWrapper`, which wraps generated binaries. By default, the arguments to `makeWrapper` set `PATH` and `PYTHONPATH` environment variables before calling the binary. Additional arguments here can allow a developer to set environment variables which will be available when the binary is run. For example, `makeWrapperArgs = ["--set FOO BAR" "--set BAZ QUX"]`.
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* `installFlags`: A list of strings. Arguments to be passed to `pip install`. To pass options to `python setup.py install`, use `--install-option`. E.g., `installFlags=["--install-option='--cpp_implementation'"].
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* `format`: Format of the source. Options are `setup` for when the source has a `setup.py` and `setuptools` is used to build a wheel, and `wheel` in case the source is already a binary wheel. The default value is `setup`.
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* `format`: Format of the source. Valid options are `setuptools` (default), `flit`, `wheel`, and `other`. `setuptools` is for when the source has a `setup.py` and `setuptools` is used to build a wheel, `flit`, in case `flit` should be used to build a wheel, and `wheel` in case a wheel is provided. In case you need to provide your own `buildPhase` and `installPhase` you can use `other`.
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* `catchConflicts` If `true`, abort package build if a package name appears more than once in dependency tree. Default is `true`.
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* `checkInputs` Dependencies needed for running the `checkPhase`. These are added to `buildInputs` when `doCheck = true`.
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@ -0,0 +1,27 @@
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# This function provides generic bits to install a Python wheel.
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{ python
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, bootstrapped-pip
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}:
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{ buildInputs ? []
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# Additional flags to pass to "pip install".
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, installFlags ? []
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, ... } @ attrs:
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attrs // {
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buildInputs = buildInputs ++ [ bootstrapped-pip ];
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installPhase = attrs.installPhase or ''
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runHook preInstall
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mkdir -p "$out/${python.sitePackages}"
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export PYTHONPATH="$out/${python.sitePackages}:$PYTHONPATH"
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pushd dist
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${bootstrapped-pip}/bin/pip install *.whl --no-index --prefix=$out --no-cache ${toString installFlags}
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popd
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runHook postInstall
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'';
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}
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@ -0,0 +1,19 @@
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# This function provides specific bits for building a flit-based Python package.
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{ flit
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}:
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{ ... } @ attrs:
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attrs // {
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buildInputs = [ flit ];
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buildPhase = attrs.buildPhase or ''
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runHook preBuild
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flit wheel
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runHook postBuild
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'';
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# Flit packages do not come with tests.
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installCheckPhase = attrs.checkPhase or ":";
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doCheck = attrs.doCheck or false;
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}
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@ -0,0 +1,56 @@
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# This function provides specific bits for building a setuptools-based Python package.
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{ lib
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, python
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, bootstrapped-pip
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}:
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{
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# passed to "python setup.py build_ext"
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# https://github.com/pypa/pip/issues/881
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setupPyBuildFlags ? []
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# Execute before shell hook
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, preShellHook ? ""
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# Execute after shell hook
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, postShellHook ? ""
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, ... } @ attrs:
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let
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# use setuptools shim (so that setuptools is imported before distutils)
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# pip does the same thing: https://github.com/pypa/pip/pull/3265
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setuppy = ./run_setup.py;
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in attrs // {
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# we copy nix_run_setup.py over so it's executed relative to the root of the source
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# many project make that assumption
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buildPhase = attrs.buildPhase or ''
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runHook preBuild
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cp ${setuppy} nix_run_setup.py
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${python.interpreter} nix_run_setup.py ${lib.optionalString (setupPyBuildFlags != []) ("build_ext " + (lib.concatStringsSep " " setupPyBuildFlags))} bdist_wheel
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runHook postBuild
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'';
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installCheckPhase = attrs.checkPhase or ''
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runHook preCheck
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${python.interpreter} nix_run_setup.py test
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runHook postCheck
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'';
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# Python packages that are installed with setuptools
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# are typically distributed with tests.
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# With Python it's a common idiom to run the tests
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# after the software has been installed.
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doCheck = attrs.doCheck or true;
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shellHook = attrs.shellHook or ''
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${preShellHook}
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if test -e setup.py; then
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tmp_path=$(mktemp -d)
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export PATH="$tmp_path/bin:$PATH"
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export PYTHONPATH="$tmp_path/${python.sitePackages}:$PYTHONPATH"
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mkdir -p $tmp_path/${python.sitePackages}
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${bootstrapped-pip}/bin/pip install -e . --prefix $tmp_path
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fi
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${postShellHook}
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'';
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}
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@ -0,0 +1,20 @@
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# This function provides specific bits for building a wheel-based Python package.
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{
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}:
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{ ... } @ attrs:
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attrs // {
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unpackPhase = ''
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mkdir dist
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cp $src dist/"''${src#*-}"
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'';
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# Wheels are pre-compiled
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buildPhase = attrs.buildPhase or ":";
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installCheckPhase = attrs.checkPhase or ":";
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# Wheels don't have any checks to run
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doCheck = attrs.doCheck or false;
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}
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@ -7,120 +7,31 @@
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, python
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, mkPythonDerivation
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, bootstrapped-pip
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, flit
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}:
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{ buildInputs ? []
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# propagate build dependencies so in case we have A -> B -> C,
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# C can import package A propagated by B
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#, propagatedBuildInputs ? []
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# passed to "python setup.py build_ext"
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# https://github.com/pypa/pip/issues/881
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, setupPyBuildFlags ? []
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# Execute before shell hook
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, preShellHook ? ""
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# Execute after shell hook
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, postShellHook ? ""
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# Additional flags to pass to "pip install".
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, installFlags ? []
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, format ? "setup"
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let
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setuptools-specific = import ./build-python-package-setuptools.nix { inherit lib python bootstrapped-pip; };
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flit-specific = import ./build-python-package-flit.nix { inherit flit; };
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wheel-specific = import ./build-python-package-wheel.nix { };
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common = import ./build-python-package-common.nix { inherit python bootstrapped-pip; };
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in
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{
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# Several package formats are supported.
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# "setuptools" : Install a common setuptools/distutils based package. This builds a wheel.
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# "wheel" : Install from a pre-compiled wheel.
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# "flit" : Install a flit package. This builds a wheel.
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# "other" : Provide your own buildPhase and installPhase.
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format ? "setuptools"
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, ... } @ attrs:
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let
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# use setuptools shim (so that setuptools is imported before distutils)
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# pip does the same thing: https://github.com/pypa/pip/pull/3265
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setuppy = ./run_setup.py;
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formatspecific =
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if format == "wheel" then
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{
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unpackPhase = ''
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mkdir dist
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cp $src dist/"''${src#*-}"
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'';
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if format == "setuptools" then common (setuptools-specific attrs)
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else if format == "flit" then common (flit-specific attrs)
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else if format == "wheel" then common (wheel-specific attrs)
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else if format == "other" then {}
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else throw "Unsupported format ${format}";
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# Wheels are pre-compiled
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buildPhase = attrs.buildPhase or ":";
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installCheckPhase = attrs.checkPhase or ":";
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# Wheels don't have any checks to run
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doCheck = attrs.doCheck or false;
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}
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else if format == "setup" then
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{
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# we copy nix_run_setup.py over so it's executed relative to the root of the source
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# many project make that assumption
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buildPhase = attrs.buildPhase or ''
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runHook preBuild
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cp ${setuppy} nix_run_setup.py
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${python.interpreter} nix_run_setup.py ${lib.optionalString (setupPyBuildFlags != []) ("build_ext " + (lib.concatStringsSep " " setupPyBuildFlags))} bdist_wheel
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runHook postBuild
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'';
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installCheckPhase = attrs.checkPhase or ''
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runHook preCheck
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${python.interpreter} nix_run_setup.py test
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runHook postCheck
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'';
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# Python packages that are installed with setuptools
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# are typically distributed with tests.
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# With Python it's a common idiom to run the tests
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# after the software has been installed.
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doCheck = attrs.doCheck or true;
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}
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else
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throw "Unsupported format ${format}";
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in mkPythonDerivation ( attrs // {
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# To build and install a wheel we need pip
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buildInputs = buildInputs ++ [ bootstrapped-pip ];
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#inherit propagatedBuildInputs;
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configurePhase = attrs.configurePhase or ''
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runHook preConfigure
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# patch python interpreter to write null timestamps when compiling python files
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# this way python doesn't try to update them when we freeze timestamps in nix store
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export DETERMINISTIC_BUILD=1
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runHook postConfigure
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'';
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installPhase = attrs.installPhase or ''
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runHook preInstall
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mkdir -p "$out/${python.sitePackages}"
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export PYTHONPATH="$out/${python.sitePackages}:$PYTHONPATH"
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pushd dist
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${bootstrapped-pip}/bin/pip install *.whl --no-index --prefix=$out --no-cache ${toString installFlags}
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popd
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runHook postInstall
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'';
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shellHook = attrs.shellHook or ''
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${preShellHook}
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if test -e setup.py; then
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tmp_path=$(mktemp -d)
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export PATH="$tmp_path/bin:$PATH"
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export PYTHONPATH="$tmp_path/${python.sitePackages}:$PYTHONPATH"
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mkdir -p $tmp_path/${python.sitePackages}
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${bootstrapped-pip}/bin/pip install -e . --prefix $tmp_path
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fi
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${postShellHook}
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'';
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} // formatspecific)
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in mkPythonDerivation ( attrs // formatspecific )
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@ -57,6 +57,10 @@ python.stdenv.mkDerivation (builtins.removeAttrs attrs ["disabled"] // {
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inherit pythonPath;
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# patch python interpreter to write null timestamps when compiling python files
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# this way python doesn't try to update them when we freeze timestamps in nix store
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DETERMINISTIC_BUILD=1;
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buildInputs = [ wrapPython ] ++ buildInputs ++ pythonPath
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++ [ (ensureNewerSourcesHook { year = "1980"; }) ]
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++ (lib.optional (lib.hasSuffix "zip" attrs.src.name or "") unzip)
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@ -30,6 +30,7 @@ let
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buildPythonPackage = makeOverridable (callPackage ../development/interpreters/python/build-python-package.nix {
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inherit mkPythonDerivation;
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inherit bootstrapped-pip;
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flit = self.flit;
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});
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buildPythonApplication = args: buildPythonPackage ({namePrefix="";} // args );
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