release.yml

name: Release

# Tag a version to ship it:
#   (bump `version` in Cargo.toml, commit) then:
#   git tag v0.1.2 && git push origin v0.1.2
#
# This builds the macOS .app, publishes a GitHub Release with MarkForge.app.zip,
# and — if the HOMEBREW_TAP_TOKEN secret is set — updates the Homebrew cask.

on:
  push:
    tags: ["v*"]
  workflow_dispatch:

permissions:
  contents: write

jobs:
  release:
    runs-on: macos-14 # Apple Silicon runner (arm64)
    env:
      # Exposed so steps can gate on its presence (secrets aren't allowed in `if`).
      TAP_TOKEN: ${{ secrets.HOMEBREW_TAP_TOKEN }}
    steps:
      - uses: actions/checkout@v4

      - name: Install pinned Rust toolchain
        run: rustup show # installs the version from rust-toolchain.toml

      - uses: Swatinem/rust-cache@v2

      - name: Build .app bundle
        run: ./scripts/bundle.sh

      - name: Read version & checksum
        id: meta
        run: |
          echo "version=$(grep -m1 '^version' Cargo.toml | sed -E 's/.*"(.*)".*/\1/')" >> "$GITHUB_OUTPUT"
          echo "sha=$(shasum -a 256 target/release/MarkForge.app.zip | awk '{print $1}')" >> "$GITHUB_OUTPUT"

      - name: Publish GitHub Release
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          VERSION="${{ steps.meta.outputs.version }}"
          if gh release view "v$VERSION" >/dev/null 2>&1; then
            gh release upload "v$VERSION" target/release/MarkForge.app.zip --clobber
          else
            gh release create "v$VERSION" target/release/MarkForge.app.zip \
              --title "MarkForge v$VERSION" \
              --notes "Install: \`brew install --cask rescenedev/tap/markforge\`  ·  or download \`MarkForge.app.zip\` below."
          fi

      - name: Update Homebrew cask
        if: ${{ env.TAP_TOKEN != '' }}
        env:
          VERSION: ${{ steps.meta.outputs.version }}
          SHA: ${{ steps.meta.outputs.sha }}
        run: |
          git clone "https://x-access-token:${TAP_TOKEN}@github.com/rescenedev/homebrew-tap.git" tap
          cat > tap/Casks/markforge.rb <<RB
          cask "markforge" do
            version "${VERSION}"
            sha256 "${SHA}"

            url "https://github.com/rescenedev/markforge/releases/download/v#{version}/MarkForge.app.zip"
            name "MarkForge"
            desc "Native macOS Markdown viewer & editor built in Rust on GPUI"
            homepage "https://github.com/rescenedev/markforge"

            app "MarkForge.app"

            postflight do
              system_command "/usr/bin/xattr",
                             args: ["-dr", "com.apple.quarantine", "#{appdir}/MarkForge.app"],
                             sudo: false
            end

            zap trash: [
              "~/Library/Application Support/MarkForge",
            ]
          end
          RB
          cd tap
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git add Casks/markforge.rb
          git commit -m "markforge ${VERSION}" || { echo "no changes"; exit 0; }
          git push