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new 3ed7de4cb885 [SPARK-53081][CORE][SQL][CONNECT] Support `contentEquals`
in `SparkFileUtils`
3ed7de4cb885 is described below
commit 3ed7de4cb88543def8e78e6b2543bea0b912d67f
Author: Dongjoon Hyun <dongj...@apache.org>
AuthorDate: Sun Aug 3 07:18:44 2025 -0700
[SPARK-53081][CORE][SQL][CONNECT] Support `contentEquals` in
`SparkFileUtils`
### What changes were proposed in this pull request?
This PR aims to support `contentEquals` in `SparkFileUtils`.
### Why are the changes needed?
To improve Spark's file utility features.
### Does this PR introduce _any_ user-facing change?
No behavior change.
### How was this patch tested?
Pass the CIs.
### Was this patch authored or co-authored using generative AI tooling?
No.
Closes #51793 from dongjoon-hyun/SPARK-53081.
Authored-by: Dongjoon Hyun <dongj...@apache.org>
Signed-off-by: Dongjoon Hyun <dongj...@apache.org>
---
.../scala/org/apache/spark/util/SparkFileUtils.scala | 19 +++++++++++++++++++
scalastyle-config.xml | 5 +++++
.../apache/spark/sql/connect/ClientE2ETestSuite.scala | 5 ++---
.../apache/spark/sql/artifact/ArtifactManager.scala | 4 ++--
4 files changed, 28 insertions(+), 5 deletions(-)
diff --git
a/common/utils/src/main/scala/org/apache/spark/util/SparkFileUtils.scala
b/common/utils/src/main/scala/org/apache/spark/util/SparkFileUtils.scala
index 37caa85342c6..964211a49c71 100644
--- a/common/utils/src/main/scala/org/apache/spark/util/SparkFileUtils.scala
+++ b/common/utils/src/main/scala/org/apache/spark/util/SparkFileUtils.scala
@@ -168,6 +168,25 @@ private[spark] trait SparkFileUtils extends Logging {
}
Files.copy(src.toPath(), dst.toPath(), StandardCopyOption.REPLACE_EXISTING)
}
+
+ /** Return true if the content of the files are equal or they both don't
exist */
+ def contentEquals(file1: File, file2: File): Boolean = {
+ if (file1 == null && file2 != null || file1 != null && file2 == null) {
+ false
+ } else if (file1 == null && file2 == null || !file1.exists() &&
!file2.exists()) {
+ true
+ } else if (!file1.exists() || !file2.exists()) {
+ false
+ } else if (file1.isDirectory() || file2.isDirectory()) {
+ throw new IllegalArgumentException(s"Input is not a file: $file1 or
$file2")
+ } else if (file1.length != file2.length) {
+ false
+ } else {
+ val path1 = file1.toPath
+ val path2 = file2.toPath
+ Files.isSameFile(path1, path2) || Files.mismatch(path1, path2) == -1L
+ }
+ }
}
private[spark] object SparkFileUtils extends SparkFileUtils
diff --git a/scalastyle-config.xml b/scalastyle-config.xml
index dbddba673285..3605daa081c4 100644
--- a/scalastyle-config.xml
+++ b/scalastyle-config.xml
@@ -337,6 +337,11 @@ This file is divided into 3 sections:
<customMessage>Use copyDirectory of JavaUtils/SparkFileUtils/Utils
instead.</customMessage>
</check>
+ <check customId="contentEquals" level="error"
class="org.scalastyle.file.RegexChecker" enabled="true">
+ <parameters><parameter
name="regex">[^k]FileUtils\.contentEquals</parameter></parameters>
+ <customMessage>Use contentEquals of SparkFileUtils or Utils
instead.</customMessage>
+ </check>
+
<check customId="commonslang2" level="error"
class="org.scalastyle.file.RegexChecker" enabled="true">
<parameters><parameter
name="regex">org\.apache\.commons\.lang\.</parameter></parameters>
<customMessage>Use Commons Lang 3 classes (package
org.apache.commons.lang3.*) instead
diff --git
a/sql/connect/client/jvm/src/test/scala/org/apache/spark/sql/connect/ClientE2ETestSuite.scala
b/sql/connect/client/jvm/src/test/scala/org/apache/spark/sql/connect/ClientE2ETestSuite.scala
index cc297f4c4987..338d532ce2df 100644
---
a/sql/connect/client/jvm/src/test/scala/org/apache/spark/sql/connect/ClientE2ETestSuite.scala
+++
b/sql/connect/client/jvm/src/test/scala/org/apache/spark/sql/connect/ClientE2ETestSuite.scala
@@ -26,7 +26,6 @@ import scala.concurrent.{ExecutionContext, Future}
import scala.concurrent.duration.{DurationInt, FiniteDuration}
import scala.jdk.CollectionConverters._
-import org.apache.commons.io.FileUtils
import org.apache.commons.io.output.TeeOutputStream
import org.scalactic.TolerantNumerics
import org.scalatest.PrivateMethodTester
@@ -46,7 +45,7 @@ import
org.apache.spark.sql.connect.test.SparkConnectServerUtils.port
import org.apache.spark.sql.functions._
import org.apache.spark.sql.internal.SqlApiConf
import org.apache.spark.sql.types._
-import org.apache.spark.util.SparkThreadUtils
+import org.apache.spark.util.{SparkFileUtils, SparkThreadUtils}
class ClientE2ETestSuite
extends QueryTest
@@ -346,7 +345,7 @@ class ClientE2ETestSuite
.listFiles()
.filter(file => file.getPath.endsWith(".csv"))(0)
- assert(FileUtils.contentEquals(testDataPath.toFile, outputFile))
+ assert(SparkFileUtils.contentEquals(testDataPath.toFile, outputFile))
}
test("read path collision") {
diff --git
a/sql/core/src/main/scala/org/apache/spark/sql/artifact/ArtifactManager.scala
b/sql/core/src/main/scala/org/apache/spark/sql/artifact/ArtifactManager.scala
index c5c998eed8f1..98e045bcb295 100644
---
a/sql/core/src/main/scala/org/apache/spark/sql/artifact/ArtifactManager.scala
+++
b/sql/core/src/main/scala/org/apache/spark/sql/artifact/ArtifactManager.scala
@@ -28,7 +28,7 @@ import java.util.concurrent.atomic.AtomicBoolean
import scala.jdk.CollectionConverters._
import scala.reflect.ClassTag
-import org.apache.commons.io.{FilenameUtils, FileUtils}
+import org.apache.commons.io.FilenameUtils
import org.apache.hadoop.fs.{LocalFileSystem, Path => FSPath}
import org.apache.spark.{JobArtifactSet, JobArtifactState, SparkContext,
SparkEnv, SparkException, SparkRuntimeException,
SparkUnsupportedOperationException}
@@ -213,7 +213,7 @@ class ArtifactManager(session: SparkSession) extends
AutoCloseable with Logging
// Disallow overwriting with modified version
if (Files.exists(target)) {
// makes the query idempotent
- if (FileUtils.contentEquals(target.toFile,
serverLocalStagingPath.toFile)) {
+ if (Utils.contentEquals(target.toFile, serverLocalStagingPath.toFile))
{
return
}
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