Github user lw-lin commented on a diff in the pull request:
https://github.com/apache/spark/pull/17346#discussion_r114468801
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/FileStreamSink.scala
---
@@ -53,6 +53,29 @@ object FileStreamSink extends Logging {
case _ => false
}
}
+
+ /**
+ * Returns true if the path is the metadata dir or its ancestor is the
metadata dir.
+ * E.g.:
+ * - ancestorIsMetadataDirectory(/.../_spark_metadata) => true
+ * - ancestorIsMetadataDirectory(/.../_spark_metadata/0) => true
+ * - ancestorIsMetadataDirectory(/a/b/c) => false
+ */
+ def ancestorIsMetadataDirectory(path: Path): Boolean = {
+ require(path.isAbsolute, s"$path is required to be absolute")
--- End diff --
switched to `makeQualified`
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