semver-check-helper.yml

name: Semver Check Helper

on:
  workflow_call:
    inputs:
      pull_request_number:
        description: Pull request whose code should be checked
        required: true
        type: number
    outputs:
      label:
        description: SemVer label calculated for the pull request
        value: ${{ jobs.semver_check.outputs.label }}

permissions:
  # By specifying at least one permission, any non-specified permissions will default to `none`.
  contents: read

jobs:
  semver_check:
    name: Calculate SemVer label
    runs-on: ubuntu-latest
    outputs:
      label: ${{ steps.semver.outputs.label }}
    steps:
      - name: Checkout code
        uses: actions/checkout@v7
        with:
          # This job has no secrets and only a read-only token.
          allow-unsafe-pr-checkout: true
          ref: refs/pull/${{ inputs.pull_request_number }}/head
          fetch-depth: 0
          persist-credentials: false
      - name: Fetch main branch for reference
        run: git fetch origin main:main
      - name: Install cargo-semver-checks
        run: cargo install cargo-semver-checks --locked
      - name: Run cargo-semver-checks
        id: semver
        run: |
          (cargo semver-checks --baseline-rev $(git merge-base main HEAD) && echo "label=V-non-breaking" >> $GITHUB_OUTPUT) || echo "label=V-breaking" >> $GITHUB_OUTPUT