[GitHub] [spark] srowen commented on a change in pull request #26757: [SPARK-30121][Build] Fix memory usage in sbt build script

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srowen commented on a change in pull request #26757: [SPARK-30121][Build] Fix memory usage in sbt build script
URL: https://github.com/apache/spark/pull/26757#discussion_r354258794
 
 

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 File path: build/sbt
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 @@ -66,7 +66,7 @@ Usage: $script_name [options]
   -sbt-dir   <path>  path to global settings/plugins directory (default: ~/.sbt)
   -sbt-boot  <path>  path to shared boot directory (default: ~/.sbt/boot in 0.11 series)
   -ivy       <path>  path to local Ivy repository (default: ~/.ivy2)
-  -mem    <integer>  set memory options (default: $sbt_mem, which is $(get_mem_opts $sbt_mem))
+  -mem    <integer>  set memory options (default: $sbt_default_mem, which is $(get_mem_opts $sbt_default_mem))
 
 Review comment:
   This doesn't update to 1.3.4 at all, no. (Moving to sbt 1.x is a fairly significant change; I couldn't get it to work a year ago) The script here is bits and pieces of an old sbt 0.x script. This is just fixing the mem message, and happens to mimic some lines from a newer sbt script.
   
   Incidentally, I kind of would like to remove the build/mvn and build/sbt scripts anyway. It works fine with recent mvn and I don't think build tools are hard to install for developers. Although installing sbt locally installs a new version, it still does understand the 0.13-based build. I don't know how much people are attached to this 'built in' wrapper, and I don't feel strongly about.
   
   Of course I'd also like to stop supporting 2 builds and would remove sbt. But that may wait until we face problems keeping the current one working with Scala 2.13.x or something.
   
   These are both quite separate issues.

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