thermion/.github/workflows/deploy.yml at develop · nmfisher/thermion · GitHub

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name: Deploy site

# Builds the documentation site (Astro) and the WASM examples gallery, stages the
# gallery under /gallery/ in the docs output, and deploys both to a single
# Cloudflare Pages project (thermion-docs → thermion.dev).
#
# The whole site is already cross-origin-isolated via docs/public/_headers
# (COOP same-origin + COEP credentialless on /*), so the gallery's
# SharedArrayBuffer (multithreaded WASM) works without any path-scoped headers.
#
# Fires on:
#   - a release tag push v* (same event publish-pub-dev.yml uses) — the site
#     deploys on a Thermion release, NOT on every develop commit
#   - manual dispatch (re-deploy without cutting a release)
#
# Requires repo secrets CLOUDFLARE_API_TOKEN and CLOUDFLARE_ACCOUNT_ID.

on:
  push:
    tags: ['v[0-9]+.[0-9]+.[0-9]+*']
  workflow_dispatch:

permissions:
  contents: read

concurrency:
  group: deploy-site-${{ github.ref }}
  cancel-in-progress: true

jobs:
  deploy:
    name: Build & deploy site
    # Any standard runner works: the web-artifact download step runs
    # `dart run thermion_dart:download_web` with `skip_native_build` set (see
    # examples/dart/web_gallery/pubspec.yaml + thermion_dart/hook/build.dart), so
    # it does no host C++ compile and needs no C++ toolchain.
    runs-on: ubuntu-24.04
    steps:
      - uses: actions/checkout@v4

      # --- documentation (Astro) ---
      - uses: pnpm/action-setup@v4
        with:
          package_json_file: docs/package.json
      - uses: actions/setup-node@v4
        with:
          node-version: 24
          cache: pnpm
          cache-dependency-path: docs/pnpm-lock.yaml
      - name: Build docs
        working-directory: docs
        run: |
          pnpm install --frozen-lockfile
          pnpm build

      # --- examples gallery (WASM) ---
      - uses: dart-lang/setup-dart@v1
      - name: Resolve gallery dependencies
        run: |
          (cd thermion_dart && dart pub get)
          (cd examples/dart/examples_lib && dart pub get)
          (cd examples/dart/web_gallery && dart pub get)
      - name: Download thermion web artifacts (thermion_dart.js/wasm)
        # Run from the gallery so thermion_dart's build hook picks up the
        # `skip_native_build` userDefine (declared under hooks.user_defines in
        # examples/dart/web_gallery/pubspec.yaml). That makes the hook no-op its
        # host C++ build: download_web.dart only fetches prebuilt artifacts over
        # HTTP, so no native compile — and no C++ toolchain on the runner — is
        # needed. (The later `dart compile wasm` step is unaffected: the hook's
        # buildCodeAssets branch runs before the skip and still downloads for web.)
        working-directory: examples/dart/web_gallery
        run: dart run thermion_dart:download_web -o web
      - name: Copy shared assets
        run: cp -r examples/assets examples/dart/web_gallery/web/assets
      - name: Compile gallery to WASM
        working-directory: examples/dart/web_gallery
        run: dart compile wasm web/main.dart -o web/main.wasm
      - name: Stage gallery under docs output
        run: |
          mkdir -p docs/dist/gallery
          cp -r examples/dart/web_gallery/web/. docs/dist/gallery/

      # --- deploy a single Cloudflare Pages project ---
      - name: Deploy to Cloudflare Pages
        uses: cloudflare/wrangler-action@v3
        with:
          apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
          accountId: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
          command: pages deploy docs/dist --project-name=thermion-docs