release.yml

name: release

# based off of https://github.com/astral-sh/ruff/blob/main/.github/workflows/release.yaml
on:
  workflow_dispatch:
    inputs:
      tag:
        description: "The version to tag (without the leading 'v'). If omitted, will initiate a dry run (no uploads)."
        default: ""
        type: string
      branch:
        description: "The branch from which to release."
        type: string

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  validate-tag:
    name: Validate tag
    runs-on: ubuntu-latest
    # If you don't set an input tag, it's a dry run (no uploads).
    if: ${{ inputs.tag }}
    steps:
      - uses: actions/checkout@v4
        with:
          ref: ${{ inputs.branch }}
      - name: Check tag consistency
        run: |
          # Switch to the commit we want to release
          git checkout ${{ inputs.branch }}
          version=$(grep "^version = " pyproject.toml | sed -e 's/version = "\(.*\)"/\1/g')
          if [ "${{ inputs.tag }}" != "${version}" ]; then
            echo "The input tag does not match the version from pyproject.toml:" >&2
            echo "${{ inputs.tag }}" >&2
            echo "${version}" >&2
            exit 1
          else
            echo "Releasing ${version}"
          fi