release.yml

name: Release

on:
  push:
    tags:
      - 'v*'
  workflow_dispatch:
    inputs:
      version:
        description: 'Release version (e.g., 1.2.3 or 1.3.0-rc.1). Do NOT include the "v" prefix.'
        required: true
        type: string
      dry_run:
        description: 'Dry run — build and validate without publishing'
        required: false
        type: boolean
        default: false

permissions:
  contents: write

jobs:
  release:
    runs-on: macos-latest
    steps:
      - name: Validate version format
        if: github.event_name == 'workflow_dispatch'
        env:
          INPUT_VERSION: ${{ inputs.version }}
        run: |
          if [[ ! "$INPUT_VERSION" =~ ^[0-9]+\.[0-9]+\.[0-9]+(-[a-zA-Z0-9.]+)?$ ]]; then
            echo "::error::Invalid version format: '$INPUT_VERSION'. Expected semver (e.g., 1.2.3 or 1.3.0-rc.1)"
            exit 1
          fi

      - name: Resolve version
        id: version
        env:
          INPUT_VERSION: ${{ inputs.version }}
          EVENT_NAME: ${{ github.event_name }}
        run: |
          if [[ "$EVENT_NAME" == "workflow_dispatch" ]]; then
            echo "VERSION=v${INPUT_VERSION}" >> "$GITHUB_OUTPUT"
          else
            echo "VERSION=${GITHUB_REF#refs/tags/}" >> "$GITHUB_OUTPUT"
          fi

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

      - name: Check tag does not already exist
        if: github.event_name == 'workflow_dispatch'
        env:
          TAG: ${{ steps.version.outputs.VERSION }}
        run: |
          if git rev-parse "$TAG" >/dev/null 2>&1; then
            echo "::error::Tag $TAG already exists"
            exit 1
          fi

      - name: Set up Go
        uses: actions/setup-go@v5
        with:
          go-version: '1.24'

      - name: Run tests
        run: go test ./... -short

      - name: Validate release build
        if: github.event_name == 'workflow_dispatch'
        uses: goreleaser/goreleaser-action@v6
        with:
          distribution: goreleaser
          version: latest
          args: release --clean --snapshot --skip=publish
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          GORELEASER_CURRENT_TAG: ${{ steps.version.outputs.VERSION }}

      - name: Create tag
        if: github.event_name == 'workflow_dispatch' && !inputs.dry_run
        env:
          TAG: ${{ steps.version.outputs.VERSION }}
        run: |
          git tag "$TAG"
          git push origin "$TAG"

      - name: Run GoReleaser
        if: github.event_name == 'push'
        uses: goreleaser/goreleaser-action@v6
        with:
          distribution: goreleaser
          version: latest
          args: release --clean
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          GORELEASER_CURRENT_TAG: ${{ steps.version.outputs.VERSION }}

      - name: Create DMG files
        if: github.event_name == 'push'
        env:
          TAG: ${{ steps.version.outputs.VERSION }}
        run: ./scripts/create-dmg.sh "$TAG"

      - name: Upload DMG to release
        if: github.event_name == 'push'
        uses: softprops/action-gh-release@v2
        with:
          tag_name: ${{ steps.version.outputs.VERSION }}
          files: |
            dist/*.dmg
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}