Set a semantic-version number (patch/minor/major) on the current draft release

This action requires you to have a draft release already. For this you can use other actions, such as Release Drafter, calling draft-semver after to rename your draft release according to soome specified rules.

Draft-semver requires you to already have at least one non-draft release using semantic version (for example, 1.0.0). It theoretically searches for all pull requests with the bump-minor or bump-major labels and defines the next version number according to the existence of those labels. It will always go on the order major -> minor -> patch.

Example: Consider the current version as being 1.2.3. If at least one PR has the bump-major label, it will increase the major version of the draft release (on this example, 2.0.0). Otherwise, if at least one PR has the bump-minor label, it will increase the minor version of the draft release (on this example, 1.3.0). Otherwise, it will just increase the patch version (on this example, 1.2.4).

You can also refer to the current version identifier on next actions by accessing the output version-identifier.

You should have the action on your workflow. One example, combining the usage with Release Drafter:

name: Create/update draft release

on:
  push:
    branches:
      - master

jobs:
  update_draft_release:
    runs-on: ubuntu-latest
    steps:
      - uses: release-drafter/release-drafter@v5
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      - name: 'Set draft version number'
        uses: pinio/draft-semver@v1
        id: semver
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      - name: Print the next version
        run: echo "Next version - ${{ steps.semver.outputs.version-identifier }}"