Add scripts for Windows LUCI recipe

.ci.yaml

@@ -39,6 +39,7 @@ targets:
     recipe: plugins/plugins
     timeout: 30
     properties:
+      target_file: windows_build_and_platform_tests.yaml
       dependencies: >
         [
           {"dependency": "vs_build"}
@@ -49,6 +50,7 @@ targets:
     recipe: plugins/plugins
     timeout: 30
     properties:
+      target_file: windows_build_and_platform_tests.yaml
       channel: stable
       dependencies: >
         [

.ci/scripts/build_examples_win32.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+# Copyright 2013 The Flutter Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+dart ./script/tool/bin/flutter_plugin_tools.dart build-examples --windows \
+   --packages-for-branch

.ci/scripts/drive_examples_win32.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+# Copyright 2013 The Flutter Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+dart ./script/tool/bin/flutter_plugin_tools.dart drive-examples --windows \
+   --packages-for-branch

.ci/scripts/prepare_tool.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+# Copyright 2013 The Flutter Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+# To set FETCH_HEAD for "git merge-base" to work
+git fetch origin master
+
+cd script/tool
+dart pub get

.ci/targets/windows_build_and_platform_tests.yaml

@@ -0,0 +1,8 @@
+
+tasks:
+  - name: "prepare tool"
+    script: .ci/scripts/prepare_tool.sh
+  - name: "build examples"
+    script: .ci/scripts/build_examples_win32.sh
+  - name: "drive examples"
+    script: .ci/scripts/drive_examples_win32.sh