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68 lines
1.5 KiB
Nix
68 lines
1.5 KiB
Nix
# `fetchPypi` function for fetching artifacts from PyPI.
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{
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fetchurl,
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makeOverridable,
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}:
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let
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computeUrl =
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{
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format ? "setuptools",
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...
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}@attrs:
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let
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computeWheelUrl =
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{
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pname,
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version,
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dist ? "py2.py3",
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python ? "py2.py3",
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abi ? "none",
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platform ? "any",
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}:
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# Fetch a wheel. By default we fetch an universal wheel.
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# See https://www.python.org/dev/peps/pep-0427/#file-name-convention for details regarding the optional arguments.
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"https://files.pythonhosted.org/packages/${dist}/${builtins.substring 0 1 pname}/${pname}/${pname}-${version}-${python}-${abi}-${platform}.whl";
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computeSourceUrl =
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{
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pname,
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version,
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extension ? "tar.gz",
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}:
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# Fetch a source tarball.
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"mirror://pypi/${builtins.substring 0 1 pname}/${pname}/${pname}-${version}.${extension}";
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compute = (
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if format == "wheel" then
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computeWheelUrl
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else if format == "setuptools" then
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computeSourceUrl
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else
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throw "Unsupported format ${format}"
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);
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in
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compute (removeAttrs attrs [ "format" ]);
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in
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makeOverridable (
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{
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format ? "setuptools",
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sha256 ? "",
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hash ? "",
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...
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}@attrs:
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let
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url = computeUrl (
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removeAttrs attrs [
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"sha256"
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"hash"
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]
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);
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in
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fetchurl {
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inherit url sha256 hash;
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}
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)
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