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[SPARK-5732][CORE]:Add an option to print the spark version in spark script. #4522

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[SPARK-5732][CORE]:Add an option to print the spark version in spark script. #4522

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463f02c
minor changes
uncleGen Feb 11, 2015
015ddee
minor changes
uncleGen Feb 11, 2015
9f2127c
revert the behavior of "-v"
uncleGen Feb 13, 2015
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12 changes: 12 additions & 0 deletions core/src/main/scala/org/apache/spark/deploy/SparkSubmit.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -40,6 +40,7 @@ import org.apache.ivy.plugins.resolver.{ChainResolver, IBiblioResolver}
import org.apache.spark.deploy.rest._
import org.apache.spark.executor._
import org.apache.spark.util.{ChildFirstURLClassLoader, MutableURLClassLoader, Utils}
import org.apache.spark._
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I would just explicitly import SPARK_VERSION since that's the only thing we need here


/**
* Whether to submit, kill, or request the status of an application.
Expand Down Expand Up @@ -89,6 +90,17 @@ object SparkSubmit {
printStream.println("Run with --help for usage help or --verbose for debug output")
exitFn()
}
private[spark] def printVersionAndExit() = {
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need Unit return type

printStream.println("""Welcome to
____ __
/ __/__ ___ _____/ /__
_\ \/ _ \/ _ `/ __/ '_/
/___/ .__/\_,_/_/ /_/\_\ version %s
/_/
""".format(SPARK_VERSION))
printStream.println("Type --help for more information.")
exitFn()
}

def main(args: Array[String]) {
val appArgs = new SparkSubmitArguments(args)
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4 changes: 4 additions & 0 deletions core/src/main/scala/org/apache/spark/deploy/SparkSubmitArguments.scala
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Expand Up @@ -417,6 +417,9 @@ private[spark] class SparkSubmitArguments(args: Seq[String], env: Map[String, St
verbose = true
parse(tail)

case ("--version") :: tail =>
SparkSubmit.printVersionAndExit()
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Some binaries, like Java, don't exit just because the version is printed. Rather than push some flow control and exit from the argument parsing code, this could become another flag in the args object, that later causes version to print in the normal flow.

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IMHO, we may just need to print the version information as simply as possible, just like what the option help dose.


case EQ_SEPARATED_OPT(opt, value) :: tail =>
parse(opt :: value :: tail)

Expand Down Expand Up @@ -485,6 +488,7 @@ private[spark] class SparkSubmitArguments(args: Seq[String], env: Map[String, St
|
| --help, -h Show this help message and exit
| --verbose, -v Print additional debug output
| --version, Print the version of current Spark
|
| Spark standalone with cluster deploy mode only:
| --driver-cores NUM Cores for driver (Default: 1).
Expand Down