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96 lines
2.5 KiB
Nix
96 lines
2.5 KiB
Nix
/* Generic builder for Python packages that come without a setup.py. */
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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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, ensureNewerSourcesHook
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}:
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{ name
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# by default prefix `name` e.g. "python3.3-${name}"
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, namePrefix ? python.libPrefix + "-"
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# Dependencies for building the package
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, buildInputs ? []
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# Dependencies needed for running the checkPhase.
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# These are added to buildInputs when doCheck = true.
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, checkInputs ? []
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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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# DEPRECATED: use propagatedBuildInputs
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, pythonPath ? []
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# used to disable derivation, useful for specific python versions
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, disabled ? false
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# Raise an error if two packages are installed with the same name
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, catchConflicts ? true
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# Additional arguments to pass to the makeWrapper function, which wraps
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# generated binaries.
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, makeWrapperArgs ? []
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, meta ? {}
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, passthru ? {}
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, doCheck ? false
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, ... } @ attrs:
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# Keep extra attributes from `attrs`, e.g., `patchPhase', etc.
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if disabled
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then throw "${name} not supported for interpreter ${python.executable}"
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else
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python.stdenv.mkDerivation (builtins.removeAttrs attrs ["disabled"] // {
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name = namePrefix + name;
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inherit pythonPath;
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buildInputs = [ wrapPython ] ++ buildInputs ++ pythonPath
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++ [ (ensureNewerSourcesHook { year = "1980"; }) ]
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++ (lib.optional (lib.hasSuffix "zip" attrs.src.name or "") unzip)
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++ lib.optionals doCheck checkInputs;
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# propagate python/setuptools to active setup-hook in nix-shell
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propagatedBuildInputs = propagatedBuildInputs ++ [ python setuptools ];
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# Python packages don't have a checkPhase, only an installCheckPhase
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doCheck = false;
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doInstallCheck = doCheck;
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postFixup = attrs.postFixup or ''
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wrapPythonPrograms
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'' + lib.optionalString catchConflicts ''
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# check if we have two packages with the same name in closure and fail
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# this shouldn't happen, something went wrong with dependencies specs
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${python.interpreter} ${./catch_conflicts.py}
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'';
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passthru = {
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inherit python; # The python interpreter
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} // passthru;
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meta = with lib.maintainers; {
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# default to python's platforms
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platforms = python.meta.platforms;
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} // meta // {
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# add extra maintainer(s) to every package
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maintainers = (meta.maintainers or []) ++ [ chaoflow domenkozar ];
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# a marker for release utilities to discover python packages
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isBuildPythonPackage = python.meta.platforms;
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};
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})
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