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Automatic semantic versioning for python projects

Project description

Automatic semantic versioning for python projects. This is a python implementation of the semantic-release for js by Stephan Bönnemann. If you find this topic interesting you should check out his talk from JSConf Budapest.

Build status PyPI version

The general idea is to be able to detect what the next version of the project should be based on the commits. This tool will use that to automate the whole release, upload to PyPI and upload changelogs to Github. You can run the tool with a CI service or just run it locally.

Setup in your project

Install it

pip install python-semantic-release

Configure it

There are a three different ways to configure semantic-release.

  • [semantic_release] section in setup.cfg

  • [tool.semantic_release] section in pyproject.toml

  • Passing -D to the command like semantic-release <command> -D <option_name>=<option_value>

The important thing to configure for all projects is where the version variable is stored. This is used to get the current version and updating it. The config variable for that is version_variable. If your project main package is super_package and the version with name __version__ variable is in __init__.py then you can set it too version_variable = super_package/__init__.py:__version__.

For the basic setup this should be all you need to, for further reading on supported config variables check the Configuration page in the documentation

Run it

There is three different things you can do with this tool. Run the commands below with semantic-release <command>.

  • version - Create a new release. Will change the version, commit it and tag it.

  • publish - Runs version before pushing to git and uploading to pypi.

  • changelog - Generates the changelog for the next release.

Running commands from setup.py

Add the following to your setup.py and you will be able to run python setup.py <command> as you would semantic-release <command>.

try:
    from semantic_release import setup_hook
    setup_hook(sys.argv)
except ImportError:
    pass

Configuration

Configuration belongs in semantic_release section of the setup.cfg file in your project. Details about configuration options can be found in the configuration documentation.

Running it on CI

Getting a fully automated setup with automatic releases from CI can be helpful for some projects. It was the main motivation to create this tool. There is a dedicated documentation page for setting up with different CI tools: Automatic release with CI documentation

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5.2.0

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