.github/workflows/release.yaml

name: Release

on:
  push:
    tags:
      - 'v*'

permissions:
  contents: write

concurrency:
  group: release-${{ github.ref }}
  cancel-in-progress: false

jobs:
  release:
    name: Create release
    runs-on: ubuntu-latest
    steps:
      - name: Create release with generated notes
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          set -euo pipefail
          if output=$(gh release view "$GITHUB_REF_NAME" --repo "$GITHUB_REPOSITORY" 2>&1); then
            echo "Release $GITHUB_REF_NAME already exists, skipping"
            exit 0
          elif ! grep -qi "release not found" <<< "$output"; then
            # A lookup failure other than "not found" (auth, network, API)
            # must not fall through to the create step.
            echo "$output" >&2
            exit 1
          fi
          gh release create "$GITHUB_REF_NAME" \
            --repo "$GITHUB_REPOSITORY" \
            --title "${GITHUB_REF_NAME#v}" \
            --verify-tag \
            --generate-notes