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# Generic builder.
{ lib
, python
, wrapPython
, setuptools
, unzip
, ensureNewerSourcesHook
# Whether the derivation provides a Python module or not.
, pythonModule
, namePrefix
}:
{ name ? "${attrs.pname}-${attrs.version}"
# Dependencies for building the package
, buildInputs ? []
# Dependencies needed for running the checkPhase.
# These are added to buildInputs when doCheck = true.
, checkInputs ? []
# propagate build dependencies so in case we have A -> B -> C,
# C can import package A propagated by B
, propagatedBuildInputs ? []
# DEPRECATED: use propagatedBuildInputs
, pythonPath ? []
# used to disable derivation, useful for specific python versions
, disabled ? false
# Raise an error if two packages are installed with the same name
, catchConflicts ? true
# Additional arguments to pass to the makeWrapper function, which wraps
# generated binaries.
, makeWrapperArgs ? []
# Skip wrapping of python programs altogether
, dontWrapPythonPrograms ? false
, meta ? {}
, passthru ? {}
, doCheck ? false
, ... } @ attrs:
# Keep extra attributes from `attrs`, e.g., `patchPhase', etc.
if disabled
then throw "${name} not supported for interpreter ${python.executable}"
else
python.stdenv.mkDerivation (builtins.removeAttrs attrs [
"disabled" "checkInputs" "doCheck" "doInstallCheck" "dontWrapPythonPrograms" "catchConflicts"
] // {
name = namePrefix + name;
buildInputs = ([ wrapPython (ensureNewerSourcesHook { year = "1980"; }) ]
++ (lib.optional (lib.hasSuffix "zip" attrs.src.name or "") unzip)
++ lib.optionals doCheck checkInputs
++ lib.optional catchConflicts setuptools # If we nog longer propagate setuptools
++ buildInputs
++ pythonPath
);
# Propagate python and setuptools. We should stop propagating setuptools.
propagatedBuildInputs = propagatedBuildInputs ++ [ python setuptools ];
# Python packages don't have a checkPhase, only an installCheckPhase
doCheck = false;
doInstallCheck = doCheck;
postFixup = lib.optionalString (!dontWrapPythonPrograms) ''
wrapPythonPrograms
'' + lib.optionalString catchConflicts ''
# Check if we have two packages with the same name in the closure and fail.
# If this happens, something went wrong with the dependencies specs.
# Intentionally kept in a subdirectory, see catch_conflicts/README.md.
${python.interpreter} ${./catch_conflicts}/catch_conflicts.py
'' + attrs.postFixup or '''';
passthru = {
inherit python; # The python interpreter
inherit pythonModule;
} // passthru;
meta = {
# default to python's platforms
platforms = python.meta.platforms;
isBuildPythonPackage = python.meta.platforms;
} // meta;
})
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