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Merge pull request #489 from TyberiusPrime/LegacyVersion

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fix: non-PEP-440 version strings handled
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DavHau 2022-07-29 12:47:00 +02:00 committed by GitHub
commit f2e0ebdf48
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1 changed files with 19 additions and 1 deletions
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20
mach_nix/nix/buildPythonPackage.nix
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@ -35,7 +35,25 @@ let
else l.extract_meta python_pkg src "name" "pname";
version =
if hasAttr "version" args then args.version
else l.extract_meta python_pkg src "version" "version";
else (
let
input_version = l.extract_meta python_pkg src "version" "version";
output_version =
if
! builtins.isNull (builtins.match
# straight from Appendix B of PEP 440
"^([1-9][0-9]*!)?(0|[1-9][0-9]*)(\.(0|[1-9][0-9]*))*((a|b|rc)(0|[1-9][0-9]*))?(\.post(0|[1-9][0-9]*))?(\.dev(0|[1-9][0-9]*))?$"
input_version)
then input_version
else
# if possible, do a fake 'public+local' (ie. 0+xyz) version according to
# https://peps.python.org/pep-0440/#local-version-identifiers
if ! builtins.isNull (builtins.match "^[a-zA-Z0-9.]*$" input_version)
then "0+" + input_version
else throw "package ${pname} version '${input_version}' could not be turned into a valid PEP 440 (local) version string. Supply version attribute manually.";
in
output_version
);
meta_reqs = l.extract_requirements python_pkg src "${pname}:${version}" extras;
reqs =
(if requirements == "" then