Use scalafmt.

Author: counter2015

build.mill

@@ -8,6 +8,8 @@ import mill._, scalalib._, scalanativelib._, publish._
 import mill.scalalib.api.ZincWorkerUtil
 import com.github.lolgab.mill.mima._
 import de.tobiasroeser.mill.vcs.version.VcsVersion
+import mill.scalalib.scalafmt.ScalafmtModule
+
 
 val communityBuildDottyVersion = sys.props.get("dottyVersion").toList
 
@@ -117,7 +119,7 @@ trait OsLibModule
   }
 }
 
-trait OsModule extends OsLibModule { outer =>
+trait OsModule extends OsLibModule with ScalafmtModule { outer =>
   def ivyDeps = Agg(Deps.geny, Deps.collectionCompact)
   override def compileIvyDeps = T {
     val scalaReflectOpt = Option.when(!ZincWorkerUtil.isDottyOrScala3(scalaVersion()))(

os/test/src/ZipOpTests.scala

@@ -81,7 +81,8 @@ object ZipOpTests extends TestSuite {
         dest = wd / "zipByExcludingCertainFiles"
       )
       val paths = os.walk(outputZipFilePath).sorted
-      val expected = Seq(wd / "zipByExcludingCertainFiles/File.amx", wd / "zipByExcludingCertainFiles")
+      val expected =
+        Seq(wd / "zipByExcludingCertainFiles/File.amx", wd / "zipByExcludingCertainFiles")
       assert(paths == expected)
     }
 
@@ -171,7 +172,7 @@ object ZipOpTests extends TestSuite {
       val expected = Seq(
         wd / "unzipAllExceptExcludingCertainFiles/File.txt",
         wd / "unzipAllExceptExcludingCertainFiles/one.txt",
-        wd / "folder1",
+        wd / "folder1"
       )
 
       assert(paths == expected)