Github user mgaido91 commented on a diff in the pull request:
https://github.com/apache/spark/pull/22078#discussion_r209430770
--- Diff:
core/src/main/scala/org/apache/spark/internal/io/FileCommitProtocol.scala ---
@@ -124,6 +124,25 @@ abstract class FileCommitProtocol {
fs.delete(path, recursive)
}
+ /**
+ * Specifies that a directory should be truncated with the commit of
this job. The default
+ * implementation deletes the file immediately.
+ *
+ * Return true if this directory is empty or deleted all files in this
directory, otherwise false.
+ */
+ def truncateDirectoryWithJob(fs: FileSystem, directory: Path, recursive:
Boolean): Boolean = {
+ assert(fs.isDirectory(directory))
+ val listStatus = fs.listStatus(directory)
+ if (listStatus.isEmpty) {
+ true
+ } else {
+ val result = listStatus.map { f =>
--- End diff --
what about `forall`?
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