label-alpha-bump.yml

name: Autobump

on:
  pull_request:
    types:
      - labeled  # Triggers when any label is added to the PR
  on: workflow_dispatch # Triggers when the workflow is manually triggered

jobs:
    debug:
      name: debug
      runs-on: ubuntu-20.04
      steps:
        - name: output debug info
          run: |
            echo "Check Suite JSON:"
            echo '${{ toJson(github.event) }}' | jq .
            
            echo "Pull Request Labels JSON:"
            echo '${{ toJson(github.event.pull_request.labels) }}' | jq .
    label-alpha-bump:
        name: Release alpha version based on PR label
        runs-on: ubuntu-20.04
        if: |
            github.event.check_suite.conclusion == 'success'
            && contains(github.event.pull_request.labels.*.name, 'bump alpha')
        steps:
            - name: Check out repository
              uses: actions/checkout@v4
              with:
                  ref: ${{ github.event.pull_request.base.ref }}
                  token: ${{ secrets.POSTHOG_BOT_GITHUB_TOKEN }}
                  fetch-depth: 0

            - uses: pnpm/action-setup@v4
              with:
                version: 8.x.x

            - name: Determine new version
              id: versions
              if: steps.bump-type.outputs.bump-type != 'null'
              run: |
                  OLD_VERSION=$(jq ".version" package.json -r)
                  NEW_VERSION=$(npx semver $OLD_VERSION -i pre-release --preid alpha)
                  echo "old-version=$OLD_VERSION" >> "$GITHUB_OUTPUT"
                  echo "new-version=$NEW_VERSION" >> "$GITHUB_OUTPUT"

            - name: Update version in package.json
              if: steps.bump-type.outputs.bump-type != 'null'
              run: |
                  mv package.json package.old.json
                  jq --indent 4 '.version = "${{ steps.versions.outputs.new-version }}"' package.old.json > package.json
                  rm package.old.json

            - name: Publish the alpha in the npm registry
              run: npm publish --access public --dry-run
              env:
                  NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}