Github user shivaram commented on a diff in the pull request:
https://github.com/apache/spark/pull/5096#discussion_r27847889
--- Diff:
launcher/src/main/java/org/apache/spark/launcher/SparkSubmitCommandBuilder.java
---
@@ -243,6 +258,36 @@
return pyargs;
}
+ private List<String> buildSparkRCommand(Map<String, String> env) throws
IOException {
+ if (!appArgs.isEmpty() && appArgs.get(0).endsWith(".R")) {
+ appResource = appArgs.get(0);
+ appArgs.remove(0);
+ return buildCommand(env);
+ }
+
+ Properties props = loadPropertiesFile();
+ mergeEnvPathList(env, getLibPathEnvName(),
+ firstNonEmptyValue(SparkLauncher.DRIVER_EXTRA_LIBRARY_PATH,
conf, props));
+
+ // Store spark-submit arguments in an environment variable, since
there's no way to pass
+ // them to sparkR on the command line.
+ StringBuilder submitArgs = new StringBuilder();
+ for (String arg : buildSparkSubmitArgs()) {
+ if (submitArgs.length() > 0) {
+ submitArgs.append(" ");
+ }
+ submitArgs.append(quoteForPython(arg));
--- End diff --
I refactored this into a new function. Let me know if this looks okay (I'm
not very familiar with the code here)
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