Add API check for pull requests to main

.github/workflows/publish.yml

@@ -1,5 +1,6 @@
 name: Publish
 
+# If these are changed, make sure the "test" workflow's triggers are updated as well
 on:
   push:
     tags: [ 'v*' ]

.github/workflows/test.yml

@@ -1,15 +1,22 @@
 name: Test
 
-on: [ push, pull_request ]
+on:
+  # All pull requests
+  pull_request: {}
+  # All but the "publish" workflow's push refs, since whose should already be tested
+  push:
+    tags-ignore: [ 'v*' ]
+    branches-ignore: [ 'main' ]
 
 jobs:
-  publish:
+  test:
     strategy:
       matrix:
         runner: [ ubuntu-latest, macos-latest, windows-latest ]
 
     name: 'Test: ${{ matrix.runner }}'
     runs-on: ${{ matrix.runner }}
+
     steps:
       - uses: actions/checkout@v3
 
@@ -21,3 +28,25 @@ jobs:
 
       - name: Test
         run: ./gradlew ciTest
+
+  api-check:
+    name: 'API Check'
+    runs-on: ubuntu-latest
+
+    # Only run API check on pull requests to main
+    if: github.event.pull_request.base.ref == 'main'
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up JDK
+        uses: actions/setup-java@v3
+        with:
+          java-version: '17'
+          distribution: 'adopt'
+
+      - name: Binary Compatibility
+        run: ./gradlew apiCheck
+
+      - name: Documentation
+        run: ./gradlew dokkaHtml