[SPARK-30570][BUILD] Update scalafmt plugin to 1.0.3 with onlyChangedFiles feature

Update the scalafmt plugin to 1.0.3 and use its new onlyChangedFiles feature rather than --diff

Older versions of the plugin either didn't work with scala 2.13, or got rid of the --diff argument and didn't allow for formatting only changed files

The /dev/scalafmt script no longer passes through arbitrary args, instead using the arg to select scala version.  The issue here is the plugin name literally contains the scala version, and doesn't appear to have a shorter way to refer to it.   If srowen or someone else with better maven-fu has an idea I'm all ears.

Manually, e.g. edited a file and ran

dev/scalafmt

or

dev/scalafmt 2.13

Closes apache#27279 from koeninger/SPARK-30570.

Authored-by: cody koeninger <[email protected]>
Signed-off-by: Dongjoon Hyun <[email protected]>

(cherry picked from commit 843224e)

Ref: LIHADOOP-54911

This required minor modifications to set the branch for diffing properly (to li-2.3.0) and configure the default Scala version to 2.11.

RB=2208737
BUG=LIHADOOP-54911
G=spark-reviewers
R=mmuralid,vsowrira
A=mmuralid

Author: koeninger

dev/scalafmt

@@ -17,7 +17,6 @@
 # limitations under the License.
 #
 
-# by default, format only files that differ from git master
-params="${@:---diff}"
+VERSION="${@:-2.11}"
+./build/mvn -Pscala-$VERSION mvn-scalafmt_$VERSION:format -Dscalafmt.skip=false
 
-./build/mvn mvn-scalafmt_2.12:format -Dscalafmt.skip=false -Dscalafmt.parameters="$params"

pom.xml

@@ -161,7 +161,7 @@
     <commons.collections.version>3.2.2</commons.collections.version>
     <scala.version>2.11.8</scala.version>
     <scala.binary.version>2.11</scala.binary.version>
-    <scalafmt.parameters>--diff --test</scalafmt.parameters>
+    <scalafmt.parameters>--test</scalafmt.parameters>
     <!-- for now, not running scalafmt as part of default verify pipeline -->
     <scalafmt.skip>true</scalafmt.skip>
     <codehaus.jackson.version>1.9.13</codehaus.jackson.version>
@@ -2695,12 +2695,16 @@
       </plugin>
       <plugin>
         <groupId>org.antipathy</groupId>
-        <artifactId>mvn-scalafmt_2.12</artifactId>
-        <version>0.9_1.5.1</version>
+        <artifactId>mvn-scalafmt_${scala.binary.version}</artifactId>
+        <version>1.0.3</version>
         <configuration>
           <parameters>${scalafmt.parameters}</parameters> <!-- (Optional) Additional command line arguments -->
           <skip>${scalafmt.skip}</skip> <!-- (Optional) skip formatting -->
-          <configLocation>dev/.scalafmt.conf</configLocation> <!-- (Optional) config locataion -->
+          <skipSources>${scalafmt.skip}</skipSources>
+          <skipTestSources>${scalafmt.skip}</skipTestSources>
+          <configLocation>dev/.scalafmt.conf</configLocation> <!-- (Optional) config location -->
+          <branch>li-2.3.0</branch>
+          <onlyChangedFiles>true</onlyChangedFiles>
         </configuration>
         <executions>
           <execution>