pyrox.dev
1{
2 lib,
3 stdenv,
4 python,
5 build,
6 flit-core,
7 installer,
8 packaging,
9 pyproject-hooks,
10 tomli,
11 makeWrapper,
12}:
13let
14 buildBootstrapPythonModule =
15 basePackage: attrs:
16 stdenv.mkDerivation (
17 {
18 pname = "${python.libPrefix}-bootstrap-${basePackage.pname}";
19 inherit (basePackage) version src meta;
20
21 nativeBuildInputs = [ makeWrapper ];
22
23 buildPhase = ''
24 runHook preBuild
25
26 PYTHONPATH="${flit-core}/${python.sitePackages}" \
27 ${python.interpreter} -m flit_core.wheel
28
29 runHook postBuild
30 '';
31
32 installPhase = ''
33 runHook preInstall
34
35 PYTHONPATH="${installer}/${python.sitePackages}" \
36 ${python.interpreter} -m installer \
37 --destdir "$out" --prefix "" dist/*.whl
38
39 runHook postInstall
40 '';
41 }
42 // attrs
43 );
44
45 bootstrap-packaging = buildBootstrapPythonModule packaging { };
46
47 bootstrap-pyproject-hooks = buildBootstrapPythonModule pyproject-hooks { };
48
49 bootstrap-tomli = buildBootstrapPythonModule tomli { };
50
51 sitePkgs = python.sitePackages;
52in
53buildBootstrapPythonModule build {
54 # like the installPhase above, but wrapping the pyproject-build command
55 # to set up PYTHONPATH with the correct dependencies.
56 # This allows using `pyproject-build` without propagating its dependencies
57 # into the build environment, which is necessary to prevent
58 # pythonCatchConflicts from raising false positive alerts.
59 # This would happen whenever the package to build has a dependency on
60 # another version of a package that is also a dependency of pyproject-build.
61 installPhase = ''
62 runHook preInstall
63
64 PYTHONPATH="${installer}/${python.sitePackages}" \
65 ${python.interpreter} -m installer \
66 --destdir "$out" --prefix "" dist/*.whl
67
68 wrapProgram $out/bin/pyproject-build \
69 --prefix PYTHONPATH : "$out/${sitePkgs}" \
70 --prefix PYTHONPATH : "${bootstrap-pyproject-hooks}/${sitePkgs}" \
71 --prefix PYTHONPATH : "${bootstrap-packaging}/${sitePkgs}" \
72 --prefix PYTHONPATH : "${bootstrap-tomli}/${sitePkgs}"
73
74 runHook postInstall
75 '';
76}