try pattern

.github/workflows/test.yaml

@@ -10,6 +10,15 @@ jobs:
       SCALA_VERSION: ${{ matrix.scala }}
     steps:
       - uses: actions/checkout@v3
+      - uses: technote-space/get-diff-action@v4
+        id: git-diff
+        with:
+          PATTERNS: |
+            **
+            !kernel/**
+      - name: print the results
+        run: |
+          echo $GIT_DIFF
       - name: install java
         uses: actions/setup-java@v3
         with:
@@ -53,3 +62,4 @@ jobs:
         run: |
           pipenv run python run-tests.py --coverage
           cd examples/scala && build/sbt "++ $SCALA_VERSION compile"
+        if: steps.get-diff.outputs.diff

build.sbt

@@ -23,6 +23,8 @@ val scala213 = "2.13.5"
 val default_scala_version = scala212
 val all_scala_versions = Seq(scala212, scala213)
 
+// comment
+
 scalaVersion := default_scala_version
 
 // crossScalaVersions must be set to Nil on the root project

storage-s3-dynamodb/src/test/scala/io/delta/storage/ExternalLogStoreSuite.scala

@@ -30,6 +30,8 @@ import org.apache.spark.sql.delta.util.FileNames
 // Base Test Suite //
 /////////////////////
 
+// test
+
 class ExternalLogStoreSuite extends org.apache.spark.sql.delta.PublicLogStoreSuite {
   override protected val publicLogStoreClassName: String =
     classOf[MemoryLogStore].getName