Github user markgrover commented on a diff in the pull request:
https://github.com/apache/spark/pull/7739#discussion_r37457145
--- Diff: core/src/main/scala/org/apache/spark/SparkConf.scala ---
@@ -479,6 +484,23 @@ class SparkConf(loadDefaults: Boolean) extends
Cloneable with Logging {
getAll.sorted.map{case (k, v) => k + "=" + v}.mkString("\n")
}
+ def getDriverExtraClassPath() : Option[String] = {
+ // Concatenate common and driver classpath in that order
+ val commonExtraClassPath = getOption("spark.common.extraClassPath")
+ val driverExtraClassPath = getOption("spark.driver.extraClassPath")
+ Option((commonExtraClassPath ++
driverExtraClassPath).mkString(File.pathSeparator)).filter(_
--- End diff --
Hmm, looks like it doesn't matter whether I use Some or None.
````
scala> Option((None++None).mkString(":")).filter(_.nonEmpty)
res3: Option[String] = None
scala> Some((None++None).mkString(":")).filter(_.nonEmpty)
res4: Option[String] = None
```
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