Add site environment for previews

.github/workflows/docs.yml

@@ -4,7 +4,7 @@ on:
   pull_request:
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
        - uses: actions/checkout@v2
        - uses: dart-lang/setup-dart@v1
@@ -13,11 +13,10 @@ jobs:
          run: dart pub get
          working-directory: docs
        - name: Run build
-         run: dart run build_runner build --release
-         working-directory: docs
-       - name: Output generated pages
+         env:
+           IS_RELEASE: ${{ github.event_name == 'push' && github.event.ref == 'refs/heads/master' }}
          run: |
-           dart run build_runner build --release --output web:deploy
+           dart run tool/ci_build.dart
            rm -rf deploy/packages deploy/build.manifest deploy/.dart_tool deploy/.packages
          working-directory: docs
        - name: Deploy to netlify

docs/build.deploy.yaml

@@ -0,0 +1,32 @@
+targets:
+  # Preprocess css first, so that we can read generated assets in the main target (for subresource integrity)
+  css:
+    auto_apply_builders: false
+    builders:
+      sass_builder:
+        enabled: true
+    sources:
+      - "web/main.scss"
+      - "web/main.css"
+
+  $default:
+    dependencies: [":css"]
+    builders:
+      sass_builder:
+        enabled: false
+      build_web_compilers|entrypoint:
+        release_options:
+          # Turn of null assertions for release builds, it looks like this
+          # makes generated code slightly smaller.
+          native_null_assertions: false
+          dart2js_args:
+            - "-O4"
+            - "--csp"
+    sources:
+      - "lib/**"
+      - "pages/**"
+      - "templates/**"
+      - "web/**"
+      - "$package$"
+      - "pubspec.yaml"
+      - "website.yaml"

docs/build.yaml

@@ -14,6 +14,9 @@ targets:
     builders:
       sass_builder:
         enabled: false
+      built_site:
+        release_options:
+          environment: "preview"
       build_web_compilers|entrypoint:
         release_options:
           # Turn of null assertions for release builds, it looks like this

docs/tool/ci_build.dart

@@ -0,0 +1,23 @@
+import 'dart:io';
+
+Future<void> main() async {
+  final isReleaseEnv = Platform.environment['IS_RELEASE'];
+  print('Is release build: $isReleaseEnv');
+
+  final isRelease = isReleaseEnv == '1';
+  final buildArgs = [
+    'run',
+    'build_runner',
+    'build',
+    '--release',
+    if (isRelease) '--config=deploy',
+  ];
+  final build = await Process.start('dart', buildArgs,
+      mode: ProcessStartMode.inheritStdio);
+  await build.exitCode;
+
+  final generatePages = await Process.start(
+      'dart', [...buildArgs, '--output=web:deploy'],
+      mode: ProcessStartMode.inheritStdio);
+  await generatePages.exitCode;
+}

docs/website.yaml

@@ -37,6 +37,9 @@ environments:
   dev:
     minify: false
     base_url: "http://localhost:8080/"
+  preview:
+    minify: true
+    base_url: "https://moor.simonbinder.eu/"
   prod:
     minify: true
     base_url: "https://moor.simonbinder.eu/"