release.yml

name: Release

on:
  push:
    tags:
      - "v*"
  workflow_dispatch:
    inputs:
      tag:
        description: "Tag to release (example: v1.2.3)"
        required: true
        type: string

permissions:
  contents: write

concurrency:
  group: release-${{ github.ref_name || inputs.tag }}
  cancel-in-progress: false

jobs:
  publish-release:
    name: Publish GitHub Release
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Resolve and validate release tag
        id: tag
        shell: bash
        run: |
          git fetch --force --tags origin

          if [[ "${{ github.event_name }}" == "workflow_dispatch" ]]; then
            TAG="${{ inputs.tag }}"
          else
            TAG="${{ github.ref_name }}"
          fi

          if [[ ! "$TAG" =~ ^v[0-9]+\.[0-9]+\.[0-9]+([-.][0-9A-Za-z.]+)?$ ]]; then
            echo "Invalid release tag: $TAG"
            exit 1
          fi

          git rev-parse "$TAG" >/dev/null 2>&1
          echo "value=$TAG" >> "$GITHUB_OUTPUT"

      - name: Generate release notes
        env:
          OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
          RELEASE_NOTES_MODEL: ${{ secrets.RELEASE_NOTES_MODEL }}
          OPENAI_BASE_URL: ${{ secrets.OPENAI_BASE_URL }}
        run: |
          export RELEASE_NOTES_MODEL="${RELEASE_NOTES_MODEL:-gpt-4o-mini}"
          export OPENAI_BASE_URL="${OPENAI_BASE_URL:-https://api.openai.com/v1/chat/completions}"

          python3 scripts/generate_release_notes.py \
            --tag "${{ steps.tag.outputs.value }}" \
            --output ".github/release-notes.md"

      - name: Create or update GitHub release
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          TAG: ${{ steps.tag.outputs.value }}
        shell: bash
        run: |
          title="$TAG"
          prerelease=""
          if [[ "$TAG" == *-* ]]; then
            prerelease="--prerelease"
          fi

          if gh release view "$TAG" >/dev/null 2>&1; then
            gh release edit "$TAG" \
              --title "$title" \
              --notes-file ".github/release-notes.md"
          else
            gh release create "$TAG" \
              --title "$title" \
              --verify-tag \
              --notes-file ".github/release-notes.md" \
              $prerelease
          fi