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Improve support for PEP-440 direct references #22

Merged

abn merged 1 commit into python-poetry:master from abn:file-uri-scheme

Apr 21, 2020

Commits on Apr 16, 2020

Improve support for PEP-440 direct references

With this change we allow for PEP-508 string for file dependencies
to use PEP-440 direct reference using the file URI scheme (RFC-8089).

Note that this implementation will not allow non RFC-8089 file path
references. In order to allow for sdist to be portable in sane use
cases, we ensure that relative path dependencies do not use the
file URI scheme, but preserve path if relative or directories.

In addition to file resource, directory dependencies now support
the same scheme.

References:
- https://www.python.org/dev/peps/pep-0508/#backwards-compatibility
- https://www.python.org/dev/peps/pep-0440/#direct-references
- https://tools.ietf.org/html/rfc8089
- https://discuss.python.org/t/what-is-the-correct-interpretation-of-path-based-pep-508-uri-reference/2815/11

abn committed Apr 16, 2020