gh-action-bump-version/README.md

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## gh-action-bump-version
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GitHub Action for automated npm version bump.
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This Action publishes a package to npm. It is meant to be used on every successful merge to master but
you'll need to configured that workflow yourself. You can look to the
[`.github/workflows/push.yml`](./.github/workflows/push.yml) file in this project as an example.
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### Workflow
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* Check for the latest version number published to npm.
* Lookup all commits between the git commit that triggered the action and the latest publish.
* If the package hasn't been published or the prior publish does not include a git hash, we'll
only pull the commit data that triggered the action.
* Based on the commit messages, increment the version from the lastest release.
* If the string "BREAKING CHANGE" is found anywhere in any of the commit messages or descriptions the major
version will be incremented.
* If a commit message begins with the string "feat" then the minor version will be increased. This works
for most common commit metadata for feature additions: `"feat: new API"` and `"feature: new API"`.
* All other changes will increment the patch version.
* Publish to npm using the configured token.
* Push the bumped npm version in package.json back into the repo.
* Push a tag for the new version to GitHub.