nixpkgs/pkgs/development/interpreters/python/build-python-package.nix
Tuomas Tynkkynen 68052b5619 python: Pull ensureNewerSourcesHook call to all-packages.nix
Documents the reason why it's needed and also prevents the
ensureNewerSourcesHook call being evaluated again and again for every
single Python package.
2018-02-13 16:32:16 +02:00

44 lines
1.5 KiB
Nix

# This function provides a generic Python package builder,
# and can build packages that use distutils, setuptools or flit.
{ lib
, python
, wrapPython
, setuptools
, unzip
, ensureNewerSourcesForZipFilesHook
, toPythonModule
, namePrefix
, bootstrapped-pip
, flit
}:
let
setuptools-specific = import ./build-python-package-setuptools.nix { inherit lib python bootstrapped-pip; };
flit-specific = import ./build-python-package-flit.nix { inherit python flit; };
wheel-specific = import ./build-python-package-wheel.nix { };
common = import ./build-python-package-common.nix { inherit python bootstrapped-pip; };
mkPythonDerivation = import ./mk-python-derivation.nix {
inherit lib python wrapPython setuptools unzip ensureNewerSourcesForZipFilesHook toPythonModule namePrefix;
};
in
{
# Several package formats are supported.
# "setuptools" : Install a common setuptools/distutils based package. This builds a wheel.
# "wheel" : Install from a pre-compiled wheel.
# "flit" : Install a flit package. This builds a wheel.
# "other" : Provide your own buildPhase and installPhase.
format ? "setuptools"
, ... } @ attrs:
let
formatspecific =
if format == "setuptools" then common (setuptools-specific attrs)
else if format == "flit" then common (flit-specific attrs)
else if format == "wheel" then common (wheel-specific attrs)
else if format == "other" then {}
else throw "Unsupported format ${format}";
in mkPythonDerivation ( attrs // formatspecific )