Github user srowen commented on a diff in the pull request:
https://github.com/apache/spark/pull/706#discussion_r12508305
--- Diff: project/SparkBuild.scala ---
@@ -297,7 +273,7 @@ object SparkBuild extends Build {
val chillVersion = "0.3.6"
val codahaleMetricsVersion = "3.0.0"
val jblasVersion = "1.2.3"
- val jets3tVersion = if
("^2\\.[3-9]+".r.findFirstIn(hadoopVersion).isDefined) "0.9.0" else "0.7.1"
+ val jets3tVersion =
"^2\\.[3-9]+".r.findFirstIn(hadoopVersion).fold("0.7.1")(_ => "0.9.0")
--- End diff --
This is a tangential question. Is this more idiomatic scala? I've seen fold
as an alternative to if-else or use of Option, but had thought it harder to
understand.
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