ci: allow forked PRs to build and test with 'safe to test' label

Author: jsm174

.github/workflows/build.yml

@@ -1,5 +1,5 @@
 name: Build
-on: [push, pull_request]
+on: push
 
 env:
   UNITY_LICENSE: ${{ secrets.UNITY_LICENSE }}
@@ -86,7 +86,7 @@ jobs:
     name: Dispatch
     runs-on: ubuntu-latest
     needs: [ test ]
-    if: github.repository == 'freezy/VisualPinball.Engine' && github.ref == 'refs/heads/master' && github.event_name == 'push'
+    if: github.repository == 'freezy/VisualPinball.Engine' && github.ref == 'refs/heads/master'
     steps:
       - uses: peter-evans/repository-dispatch@v1
         with:

.github/workflows/license.yml

@@ -1,6 +1,7 @@
 name: License
 on:
   workflow_dispatch: {}
+
 jobs:
   license:
     runs-on: ubuntu-latest

.github/workflows/pr.yml

@@ -0,0 +1,90 @@
+name: PR
+on: 
+  pull_request_target:
+    types: [ opened, synchronize, reopened, labeled ]
+
+env:
+  UNITY_LICENSE: ${{ secrets.UNITY_LICENSE }}
+
+defaults:
+  run:
+    shell: bash
+
+jobs:
+  build:
+    name: Build ${{ matrix.rid }}
+    runs-on: ${{ matrix.os }}
+    if: github.event.pull_request.head.repo.full_name == 'freezy/VisualPinball.Engine' || contains(github.event.pull_request.labels.*.name, 'safe to test')
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - os: windows-latest
+            rid: win-x64
+          - os: windows-latest
+            rid: win-x86
+          - os: macos-latest
+            rid: osx
+          - os: macos-latest
+            rid: ios-arm64
+          - os: ubuntu-latest
+            rid: linux-x64
+          - os: ubuntu-latest
+            rid: android-arm64-v8a
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          ref: ${{ github.event.pull_request.head.sha }}
+      - uses: actions/setup-dotnet@v1
+        with:
+          dotnet-version: '3.1.x'
+      - name: Build
+        run: |
+          cd VisualPinball.Engine.Test
+          dotnet build VisualPinball.Engine.Test.csproj -c Release -r ${{ matrix.rid }}
+      - run: |
+          mkdir tmp
+          cp -r VisualPinball.Unity/Plugins/${{ matrix.rid }} tmp
+      - uses: actions/upload-artifact@v3
+        with:
+          name: Plugins
+          path: tmp
+
+  test:
+    name: Unit Test
+    needs: [ build ]
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          ref: ${{ github.event.pull_request.head.sha }}
+      - uses: actions/download-artifact@v3
+        with:
+          name: Plugins
+          path: VisualPinball.Unity/Plugins
+      - uses: actions/cache@v3
+        with:
+         path: VisualPinball.Unity/VisualPinball.Unity.Test/TestProject~/Library
+         key: Library-Test-Project
+         restore-keys: |
+           Library-Test-Project
+           Library
+      - uses: game-ci/unity-test-runner@main
+        id: test
+        with:
+          projectPath: VisualPinball.Unity/VisualPinball.Unity.Test/TestProject~
+          artifactsPath: VisualPinball.Unity/VisualPinball.Unity.Test/TestProject~/artifacts
+          testMode: all
+          customParameters: -debugCodeOptimization -enableCodeCoverage -burst-disable-compilation -coverageOptions enableCyclomaticComplexity;assemblyFilters:+VisualPinball.Engine;pathFilters:-**/VisualPinball.Engine/Math/Triangulator/**,-**/VisualPinball.Engine/Math/Mesh/** -coverageResultsPath artifacts
+      - run: |
+          curl -s https://codecov.io/bash | bash -s - -f ${{ steps.test.outputs.artifactsPath }}/TestProject~-opencov/EditMode/TestCoverageResults_0000.xml
+      - uses: MirrorNG/[email protected]
+        if: always()
+        with:
+          path: ${{ steps.test.outputs.artifactsPath }}/*.xml
+          access-token: ${{ secrets.GITHUB_TOKEN }}
+      - uses: actions/upload-artifact@v3
+        if: always()
+        with:
+          name: Test results
+          path: ${{ steps.test.outputs.artifactsPath }}