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68052b5619
Documents the reason why it's needed and also prevents the ensureNewerSourcesHook call being evaluated again and again for every single Python package.
44 lines
1.5 KiB
Nix
44 lines
1.5 KiB
Nix
# This function provides a generic Python package builder,
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# and can build packages that use distutils, setuptools or flit.
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{ lib
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, python
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, wrapPython
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, setuptools
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, unzip
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, ensureNewerSourcesForZipFilesHook
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, toPythonModule
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, namePrefix
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, bootstrapped-pip
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, flit
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}:
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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 python 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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mkPythonDerivation = import ./mk-python-derivation.nix {
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inherit lib python wrapPython setuptools unzip ensureNewerSourcesForZipFilesHook toPythonModule namePrefix;
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};
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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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formatspecific =
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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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in mkPythonDerivation ( attrs // formatspecific )
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