release.yml

name: Release

on:
  push:
    tags:
      - "v*"
  workflow_dispatch:
    inputs:
      tag:
        description: "Existing tag, for example v1.0.0+3.15.1"
        required: true
        type: string

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

permissions:
  contents: write

jobs:
  build:
    name: Build Windows x64
    uses: ./.github/workflows/build-windows.yml

  release:
    name: Create draft GitHub release
    needs: build
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 1

      - name: Download installer artifact
        uses: actions/download-artifact@v4
        with:
          name: zcode-windows-x64
          path: dist

      - name: Resolve and verify tag
        id: tag
        shell: bash
        env:
          REQUESTED_TAG: ${{ inputs.tag }}
        run: |
          set -euo pipefail
          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
            tag="$REQUESTED_TAG"
          else
            tag="${GITHUB_REF_NAME}"
          fi
          version="$(node -p "require('./package.json').version")"
          if [ -z "$tag" ]; then
            echo "Missing release tag" >&2
            exit 1
          fi
          if [ "$tag" != "v${version}" ]; then
            echo "Tag $tag does not match package version $version (expected v${version})" >&2
            exit 1
          fi
          echo "tag=$tag" >> "$GITHUB_OUTPUT"
          echo "[release] tag=$tag package=$version"

      - name: Generate checksums
        shell: bash
        run: |
          set -euo pipefail
          cd dist
          sha256sum *.exe > SHA256SUMS.txt
          cat SHA256SUMS.txt

      - name: Create or update draft release
        shell: bash
        env:
          GH_TOKEN: ${{ github.token }}
          TAG: ${{ steps.tag.outputs.tag }}
        run: |
          set -euo pipefail
          shopt -s nullglob
          assets=(dist/*.exe dist/*.blockmap dist/*.yml dist/SHA256SUMS.txt)
          if [ "${#assets[@]}" -eq 0 ]; then
            echo "No release assets found under dist" >&2
            exit 1
          fi
          if gh release view "$TAG" >/dev/null 2>&1; then
            gh release upload "$TAG" "${assets[@]}" --clobber
          else
            gh release create "$TAG" "${assets[@]}" \
              --title "ZCode $TAG" \
              --generate-notes \
              --draft
          fi