Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/22454#discussion_r218497767
--- Diff: dev/create-release/release-build.sh ---
@@ -446,6 +432,8 @@ if [[ "$1" == "publish-release" ]]; then
# Clean-up Zinc nailgun process
$LSOF -P |grep $ZINC_PORT | grep LISTEN | awk '{ print $2; }' | xargs
kill
+ ./dev/change-scala-version.sh 2.11
--- End diff --
To make the code cleaner, I'd suggest we change the scala version back
right after we finish building scala 2.10 or 2.12, e.g.
```
... build with scala 2.11
if PUBLISH_SCALA_2_10 = 1
./dev/change-scala-version.sh 2.10
... build with scala 2.10
./dev/change-scala-version.sh 2.11
if PUBLISH_SCALA_2_12 = 1
./dev/change-scala-version.sh 2.12
... build with scala 2.12
./dev/change-scala-version.sh 2.11
```
cc @srowen
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