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pythonPackages.fetchPypi: separate url computation from fetchurl

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Frederik Rietdijk 2019-07-11 16:17:31 +02:00 committed by Frederik Rietdijk
parent f2a8117492
commit 30f299027a
1 changed files with 19 additions and 13 deletions
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32
pkgs/development/interpreters/python/fetchpypi.nix
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@ -3,20 +3,26 @@
, makeOverridable
}:
makeOverridable( {format ? "setuptools", ... } @attrs:
let
fetchWheel = {pname, version, sha256, python ? "py2.py3", abi ? "none", platform ? "any"}:
let
computeUrl = {format ? "setuptools", ... } @attrs: let
computeWheelUrl = {pname, version, python ? "py2.py3", abi ? "none", platform ? "any"}:
# Fetch a wheel. By default we fetch an universal wheel.
# See https://www.python.org/dev/peps/pep-0427/#file-name-convention for details regarding the optional arguments.
let
url = "https://files.pythonhosted.org/packages/${python}/${builtins.substring 0 1 pname}/${pname}/${pname}-${version}-${python}-${abi}-${platform}.whl";
in fetchurl {inherit url sha256;};
fetchSource = {pname, version, sha256, extension ? "tar.gz"}:
"https://files.pythonhosted.org/packages/${python}/${builtins.substring 0 1 pname}/${pname}/${pname}-${version}-${python}-${abi}-${platform}.whl";
computeSourceUrl = {pname, version, extension ? "tar.gz"}:
# Fetch a source tarball.
let
url = "mirror://pypi/${builtins.substring 0 1 pname}/${pname}/${pname}-${version}.${extension}";
in fetchurl {inherit url sha256;};
fetcher = (if format == "wheel" then fetchWheel
else if format == "setuptools" then fetchSource
"mirror://pypi/${builtins.substring 0 1 pname}/${pname}/${pname}-${version}.${extension}";
compute = (if format == "wheel" then computeWheelUrl
else if format == "setuptools" then computeSourceUrl
else throw "Unsupported format ${format}");
in fetcher (builtins.removeAttrs attrs ["format"]) )
in compute (builtins.removeAttrs attrs ["format"]);
in makeOverridable( {format ? "setuptools", sha256, ... } @attrs:
let
url = computeUrl (builtins.removeAttrs attrs ["sha256"]) ;
in fetchurl {
inherit url sha256;
})