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Creating PythonLibCore releases

These instructions cover steps needed to create new releases of PythonLibCore. Many individual steps are automated, but we don't want to automate the whole procedure because it would be hard to react if something goes terribly wrong. When applicable, the steps are listed as commands that can be copied and executed on the command line.

Preconditions

Operating system and Python requirements

Generating releases has only been tested on Linux, but it ought to work the same way also on OSX and other unixes. Generating releases on Windows may work but is not tested, supported, or recommended.

Creating releases is only supported with Python 3.6 or newer.

The pip and invoke commands below are also expected to run on Python 3.6+. Alternatively, it's possible to use the python3.6 -m pip approach to run these commands.

Python dependencies

Many steps are automated using the generic Invoke tool with a help by our rellu utilities, but also other tools and modules are needed. A pre-condition is installing all these, and that's easiest done using pip and the provided requirements-build.txt file:

pip install -r requirements-build.txt

Using Invoke

Invoke tasks are defined in the tasks.py file and they are executed from the command line like:

inv[oke] task [options]

Run invoke without arguments for help. All tasks can be listed using invoke --list and each task's usage with invoke --help task.

Different Git workflows

Git commands used below always expect that origin is the project main repository. If that's not the case, and instead origin is your personal fork, you probably still want to push to the main repository. In that case you need to add upstream or similar to git push commands before running them.

Testing

Make sure that adequate unit and acceptance tests are executed using supported interpreters and operating systems before releases are created. Unit and acceptance tests can be executed by running utest/run.py and atest/run.py scripts, respectively.

Preparation

  1. Check that you are on the master branch and have nothing left to commit, pull, or push:

    git branch
git status
git pull --rebase
git push

  2. Clean up:

    invoke clean

  3. Set version information to a shell variable to ease copy-pasting further commands. Add aN, bN or rcN postfix if creating a pre-release:

    VERSION=<version>

    For example, VERSION=3.0.1 or VERSION=3.1a2.

Release notes

  1. Set GitHub user information into shell variables to ease copy-pasting the following command:

    GITHUB_USERNAME=<username>
GITHUB_PASSWORD=<password>

    Alternatively, supply the credentials when running that command.

  2. Generate a template for the release notes:

    invoke release-notes -w -v $VERSION -u $GITHUB_USERNAME -p $GITHUB_PASSWORD

    The -v $VERSION option can be omitted if version is already set. Omit the -w option if you just want to get release notes printed to the console, not written to a file.

    When generating release notes for a preview release like 3.0.2rc1, the list of issues is only going to contain issues with that label (e.g. rc1) or with a label of an earlier preview release (e.g. alpha1, beta2).

  3. Fill the missing details in the generated release notes template.

  4. Make sure that issues have correct information:

    • All issues should have type (bug, enhancement or task) and priority set. Notice that issues with the task type are automatically excluded from the release notes.
    • Issue priorities should be consistent.
    • Issue titles should be informative. Consistency is good here too, but no need to overdo it.

    If information needs to be added or edited, its better to edit it in the issue tracker than in the generated release notes. This allows re-generating the list of issues later if more issues are added.

  5. Add, commit and push:

    git add docs/PythonLibCore-$VERSION.rst
git commit -m "Release notes for $VERSION" docs/PythonLibCore-$VERSION.rst
git push

  6. Update later if necessary. Writing release notes is typically the biggest task when generating releases, and getting everything done in one go is often impossible.

Set version

  1. Set version information in src/robotlibcore.py:

    invoke set-version $VERSION

  2. Commit and push changes:

    git commit -m "Updated version to $VERSION" src/robotlibcore.py
git push

Tagging

  1. Create an annotated tag and push it:

    git tag -a v$VERSION -m "Release $VERSION"
git push --tags

  2. Add short release notes to GitHub's releases page with a link to the full release notes.

Creating distributions

  1. Checkout the earlier created tag if necessary:

    git checkout v$VERSION

    This isn't necessary if continuing right after tagging.

  2. Cleanup (again). This removes temporary files as well as build and dist directories:

    invoke clean

  3. Create source distribution and universal (i.e. Python 2 and 3 compatible) wheel:

    python setup.py sdist bdist_wheel --universal
ls -l dist

    Distributions can be tested locally if needed.

  4. Upload distributions to PyPI:

    twine upload dist/*

  5. Verify that project the page at PyPI looks good.

  6. Test installation (add --pre with pre-releases):

    pip install --upgrade robotframework-pythonlibcore

Post actions

  1. Back to master if needed:

    git checkout master

  2. Set dev version based on the previous version:

    invoke set-version dev
git commit -m "Back to dev version" src/robotlibcore.py
git push

    For example, 1.2.3 is changed to 1.2.4.dev1 and 2.0.1a1 to 2.0.1a2.dev1.

  3. Close the issue tracker milestone. Create also new milestone for the next release unless one exists already.

Announcements

  1. robotframework-users and robotframework-announce lists. The latter is not needed with preview releases but should be used at least with major updates. Notice that sending to it requires admin rights.

  2. Twitter. Either Tweet something yourself and make sure it's re-tweeted by @robotframework, or send the message directly as [@robotframework]{.title-ref}. This makes the note appear also at http://robotframework.org.

    Should include a link to more information. Possibly a link to the full release notes or an email to the aforementioned mailing lists.

  3. Slack community. The #general channel is probably best.

  4. Possibly also Robot Framework LinkedIn group.