diff options
| -rw-r--r-- | changelog.d/2876.change.rst | 1 | ||||
| -rw-r--r-- | setuptools/build_meta.py | 21 |
2 files changed, 20 insertions, 2 deletions
diff --git a/changelog.d/2876.change.rst b/changelog.d/2876.change.rst new file mode 100644 index 00000000..e220d213 --- /dev/null +++ b/changelog.d/2876.change.rst @@ -0,0 +1 @@ +In the build backend, allow single config settings to be supplied. diff --git a/setuptools/build_meta.py b/setuptools/build_meta.py index 2a5b529a..5dc65e2d 100644 --- a/setuptools/build_meta.py +++ b/setuptools/build_meta.py @@ -38,6 +38,8 @@ import warnings import setuptools import distutils from ._reqs import parse_strings +from .extern.more_itertools import always_iterable + __all__ = ['get_requires_for_build_sdist', 'get_requires_for_build_wheel', @@ -127,9 +129,24 @@ def suppress_known_deprecation(): class _BuildMetaBackend: - def _fix_config(self, config_settings): + @staticmethod + def _fix_config(config_settings): + """ + Ensure config settings meet certain expectations. + + >>> fc = _BuildMetaBackend._fix_config + >>> fc(None) + {'--global-option': []} + >>> fc({}) + {'--global-option': []} + >>> fc({'--global-option': 'foo'}) + {'--global-option': ['foo']} + >>> fc({'--global-option': ['foo']}) + {'--global-option': ['foo']} + """ config_settings = config_settings or {} - config_settings.setdefault('--global-option', []) + config_settings['--global-option'] = list(always_iterable( + config_settings.get('--global-option'))) return config_settings def _get_build_requires(self, config_settings, requirements): |