Scalafmt support (#308)

* add scalafmt module, that formats all sources files on every run

* scalafmt worker that internally chaches reformatted files

* move jvm process call to helper method

* use scala 2.12.4 to resolve scalafmt deps; check for config file existence; add quiet flags to scalafmt CLI

* make a scalafmt worker a singleton

* add tests for scalafmt module

* add reformatAll command

* tests for reformatAll command

* add docs about scalafmt support

1 files changed, 12 insertions, 0 deletions

diff --git a/scalalib/test/resources/scalafmt/core/src/Person.scala b/scalalib/test/resources/scalafmt/core/src/Person.scala
new file mode 100644
index 00000000..b296cf85
--- /dev/null
+++ b/scalalib/test/resources/scalafmt/core/src/Person.scala
@@ -0,0 +1,12 @@
+object Person {
+  def fromString(s: String): Person = {
+    val Array(name, age) = s.split(":")
+    Person(
+      name,
+      age.toInt)
+  }
+}
+
+
+
+case class Person(name: String, age: Int)