brkyvz commented on code in PR #56374:
URL: https://github.com/apache/spark/pull/56374#discussion_r3391407714


##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/FileSourceOptions.scala:
##########
@@ -53,9 +53,13 @@ class FileSourceOptions(
    * executors. Only the CSV data source currently honors this.
    */
   val archiveFormatEnabled: Boolean = 
SQLConf.get.getConf(SQLConf.ARCHIVE_FORMAT_READER_ENABLED)
+
+  val listHiddenFiles: Boolean = 
parameters.get(LIST_HIDDEN_FILES).map(_.toBoolean)
+    .getOrElse(SQLConf.get.listHiddenFiles)
 }
 
 object FileSourceOptions {
   val IGNORE_CORRUPT_FILES = "ignoreCorruptFiles"
   val IGNORE_MISSING_FILES = "ignoreMissingFiles"
+  val LIST_HIDDEN_FILES = "listHiddenFiles"

Review Comment:
   I prefer having a `hiddenFileRegex` instead that by default is `^[\.\_]`. 
That would give the users flexibility to keep files that start with `.` as a 
hidden file but keep `_` as readable, etc. 



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