Mopidy extension upgrade checklist

Preparations

• Check if on latest master
• Create a branch: git checkout -b python3

Project setup

setup.cfg

• Copy new content, not the entire file, from cookiecutter
• Update the file with details from setup.py and deps from tox.ini

Copy from the cookiecutter

CC=~/mopidy-dev/cookiecutter-mopidy-ext/\{\{cookiecutter.repo_name\}\}
cp $CC/.gitignore .
cp $CC/setup.py .
cp $CC/pyproject.toml .
cp $CC/tox.ini .
cp $CC/MANIFEST.in .
rm .travis.yml
cp -r $CC/.circleci .

.gitignore

• Check diff for custom files that should still be ignored

tox.ini

• Set package name

MANIFEST.in

• Run tox -e check-manifest to check if everything is included

.travis.yml

• Check for dependencies installed which needs to go into .circleci/config.yml or the mopidy/ci-python Docker images

.circleci/config.yml

• Remove {% raw %} clauses: sed -i "s/{% [a-z]* %}//g" .circleci/config.yml

CHANGELOG.rst

• Split out of README.rst

README.rst

• Remove ?style=flat from badge urls
• Update CI and coverage badges
• Indent badges by 4 spaces
• Update install docs to use python3 -m pip
• Add changelog link in resources section
• Add credits section

Commit

git commit -m "Update project to match cookiecutter-mopidy-ext"

Port to Python 3

Commit for each of the following steps:

• pyupgrade --py37-plus **/*.py
• black .
• isort -rc . && black .
• Use pathlib in Extension
• Use pkg_resources to populate __version__
• Use unittest.mock instead of mock
• Use f-strings instead of % and .format()
• Anything else necessary to get tests passing and code running

CircleCI

If first extension in this GitHub org/user:

• Go to CircleCI organization security settings, e.g. https://circleci.com/gh/organizations/mopidy/settings#security
• Check "Yes, allow all members of my organization to (...) use third-party orbs"

For each extension:

• Find project at https://circleci.com/gh/organizations/mopidy/settings#projects
• Open Project settings on the right project
• Click the "Follow project" button
• Open Project settings > Advanced settings
• Set "Build forked pull requests" to "On"
• CircleCI is now ready to build any branch/PR with a .circleci/config.yml
• Setup of coverage data from CircleCI to Codecov.io is automatic

Pull request

• Push the python3 branch and make a PR
• Check that CI runs green
• Merge PR

Release

• Bump version (now in setup.cfg) to a new major number
• Add rc1 suffix to the version number
• Update changelog
• Commit and close Python 3 tracking issue from the commit message
• Release to PyPI: rm -rf dist && python setup.py sdist bdist_wheel && twine upload -s dist/*
• Create release tag: git tag -a -m "Release v2.0.0rc1" v2.0.0rc1
• Push: git push --follow-tags