MAINT: Add tests to source distributions

[pubpub-zz]

closes #2864

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.23%. Comparing base (762fc1f) to head (7a8aa37).
Report is 90 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2874   +/-   ##
=======================================
  Coverage   96.23%   96.23%           
=======================================
  Files          51       51           
  Lines        8602     8602           
  Branches     1714     1714           
=======================================
  Hits         8278     8278           
  Misses        187      187           
  Partials      137      137           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[stefan6419846]

This is not sufficient - python -m build . as the generic variant will still omit these directories inside the dist/pypdf-5.0.0.tar.gz file (the size is too small as well).

I had to use

[tool.flit.sdist]
exclude = [".github/*", "docs/*", "sample-files/.github/*", "sample-files/.gitignore", "sample-files/.pre-commit-config.yaml",  "requirements/*", ".flake8", ".gitignore", ".gitmodules", ".pylintrc", "tox.ini", "make_release.py", "mutmut-test.sh", ".pre-commit-config.yaml", ".gitblame-ignore-revs", "Makefile", "mutmut_config.py"]
include = ["resources/", "tests/"]

to actually fix this (see docs at https://flit.pypa.io/en/stable/pyproject_toml.html#sdist-section).

[pubpub-zz]

I've used python -m flit build and got good results. Is there any difference?

[stefan6419846]

python -m flit build generates a too small/incomplete source archive from your branch as well:

The correct source distribution should look like this: