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Developing LinkChecker
======================
The following steps describe how to work with the LinkChecker source which can
be found on [GitHub](https://github.com/linkchecker/linkchecker/) where
development is managed.
This is a technical document, if you are looking for ways to
participate in the community, you should rather look into
[contributing](../CONTRIBUTING.rst).
Requirements
------------
hatchling and hatch-vcs are used to create the application metadata and build
distribution packages.
These requirements are in addition to the dependencies covered in the
[installation instructions](install.txt).
Developers may wish to install hatch or tox to manage running tests.
To run the copy of linkchecker in the local repository first create the
metadata in linkcheck/_release.py:
hatchling build -t sdist --hooks-only
Then linkchecker can be run with:
python -m linkcheck
Workflows using GitHub Actions are used to check every PR, each commit and
regularly the repository HEAD. Developers are able to perform these checks
locally, using `flake8` for code style, and run the test suite with `tox` or
`hatch -e test run tests` that are both configured to use pytest.
`hatchling build` creates distributions packages.
Source layout
-------------
Important files and directories for developers to be aware of:
.flake8
.gitignore
.yamllint
Dockerfile
pyproject.toml
pytest.ini
robots.txt - test file
tox.ini
.github/ - GitHub automation
cgi-bin/ - WSGI frontend
doc/ - documentation including source for web site and man pages
linkcheck/ - core code and CLI frontend
po/ - application translations
scripts/ - automated IANA schemes updater, analysis tools
tests/
tools/ - build scripts
Release process
---------------
1. check whether updated man pages and translations need committing
(`make locale; make -C doc locale; make -C doc man`)
if so create a pull request using the GitHub workflow:
"Create a branch with updated man pages and application translations"
2. run `scripts/update_iana_uri_schemes.sh` and commit any changes
3. edit `changelog.txt` and `upgrading.txt`
4. confirm tests have passed
5. submit a pull request
6. create release (vX.Y.Z) on GitHub
7. check release has been created on PyPI
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