* Release checklist

- Check that the current virtualenv matches the current coverage branch.
- Version number in coverage/version.py
        version_info = (4, 0, 2, "alpha", 1)
        version_info = (4, 0, 2, "beta", 1)
        version_info = (4, 0, 2, "candidate", 1)
        version_info = (4, 0, 2, "final", 0)
- Python version number in classifiers in setup.py
- Copyright date in NOTICE.txt
- Update CHANGES.rst, including release date.
    - don't forget the jump target
- Update README.rst
    - "New in x.y:"
    - Python versions supported
- Update docs
    - Python versions in doc/index.rst
    - Version of latest stable release in doc/index.rst
    - Version, release, release_date and copyright date in doc/conf.py
        - Look for CHANGEME comments
    - Don't forget the man page: doc/python-coverage.1.txt
    - Check that the docs build correctly:
        $ tox -e doc
- Generate new sample_html to get the latest, incl footer version number:
    $ make clean
    $ pip install -e .
    $ cd ~/cog/trunk
    $ rm -rf htmlcov
    $ coverage run --branch --source=cogapp -m pytest -k CogTestsInMemory; coverage combine; coverage html
    - IF PRE-RELEASE:
        $ rm -f ~/coverage/trunk/doc/sample_html_beta/*.*
        $ cp -r htmlcov/ ~/coverage/trunk/doc/sample_html_beta/
    - IF NOT PRE-RELEASE:
        $ rm -f ~/coverage/trunk/doc/sample_html/*.*
        $ cp -r htmlcov/ ~/coverage/trunk/doc/sample_html/
    cd ~/coverage/trunk
    - IF NOT PRE-RELEASE:
        check in the new sample html
- Done with changes to source files, check them in.
    $ git push
- Build and publish docs:
    - IF PRE-RELEASE:
        $ make publishbeta
    - ELSE:
        $ make publish
- Kits:
    - Manually trigger the kit GitHub Action
        - https://github.com/nedbat/coveragepy/actions/workflows/kit.yml
    - Download and check built kits from GitHub Actions:
        $ make clean download_kits check_kits
    - examine the dist directory, and remove anything that looks malformed.
    - test the pypi upload:
        $ make test_upload
- Update PyPI:
    - upload kits:
        $ make kit_upload
- Tag the tree
    $ git tag coverage-3.0.1
    $ git push --tags
- Bump version:
    - coverage/version.py
        - increment version number
        - IF NOT PRE-RELEASE:
            - set to alpha-0 if just released.
    - CHANGES.rst
        - add an "Unreleased" section to the top.
    $ git push
- Update Tidelift:
    $ make tidelift_relnotes
- Update GitHub releases:
    $ make github_releases
- Update readthedocs
    - @ https://readthedocs.org/projects/coverage/versions/
        - find the latest tag in the inactive list, edit it, make it active.
            - readthedocs won't find the tag until a commit is made on master.
        - keep just the latest version of each x.y release, make the rest active but hidden.
    - IF NOT PRE-RELEASE:
        - update git "stable" branch to point to latest release
            $ git branch -f stable <latest-tag>
            $ git push --all
        - @ https://readthedocs.org/projects/coverage/builds/
            - wait for the new tag build to finish successfully.
        - @ https://readthedocs.org/dashboard/coverage/advanced/
            - change the default version to the new version
- Visit the fixed issues on GitHub and mention the version it was fixed in.
    - "This is now released as part of [coverage 5.2](https://pypi.org/project/coverage/5.2)."
    - make a milestone for the next release and move open issues into it.
- Announce:
    - twitter @coveragepy
    - nedbatchelder.com blog post?
    - testing-in-python mailing list?


* Testing

- Testing of Python code is handled by tox.
    - Create and activate a virtualenv
    - pip install -r requirements/dev.pip
    - $ tox

- Testing on Linux:
    - $ make test_linux

- For complete coverage testing:

    $ make metacov

    This will run coverage.py under its own measurement.  You can do this in
    different environments (Linux vs. Windows, for example), then copy the data
    files (.metacov.*) to one machine for combination and reporting.  To
    combine and report:

    $ make metahtml

- To run the Javascript tests:

    open tests/js/index.html in variety of browsers.