From a66d72eb815e4b827fbca787af4c91488fbaf8fa Mon Sep 17 00:00:00 2001
From: Konstantinos Servis <knservis@gmail.com>
Date: Mon, 5 Mar 2018 17:40:31 +0200
Subject: [PATCH] Spark Enrich: use automated code formatting (closes #3654)

---
 3-enrich/spark-enrich/.scalafmt.conf          | 30 +++++++++++++++++++
 3-enrich/spark-enrich/build.sbt               |  1 +
 .../spark-enrich/project/BuildSettings.scala  |  9 ++++++
 3-enrich/spark-enrich/project/plugins.sbt     |  4 +++
 4 files changed, 44 insertions(+)
 create mode 100644 3-enrich/spark-enrich/.scalafmt.conf

diff --git a/3-enrich/spark-enrich/.scalafmt.conf b/3-enrich/spark-enrich/.scalafmt.conf
new file mode 100644
index 0000000000..bb98e6df8d
--- /dev/null
+++ b/3-enrich/spark-enrich/.scalafmt.conf
@@ -0,0 +1,30 @@
+style = defaultWithAlign
+maxColumn = 100
+
+docstrings = JavaDoc
+optIn.breakChainOnFirstMethodDot = true
+spaces.afterKeywordBeforeParen = true
+continuationIndent.defnSite = 2
+continuationIndent.callSite = 2
+importSelectors = noBinPack
+
+newlines {
+  sometimesBeforeColonInMethodReturnType = false
+}
+
+align {
+  arrowEnumeratorGenerator = false
+  ifWhileOpenParen = false
+  openParenCallSite = false
+  openParenDefnSite = false
+}
+
+rewrite {
+  rules = [
+    AsciiSortImports,
+    RedundantBraces,
+    RedundantParens,
+    PreferCurlyFors
+  ]
+  redundantBraces.maxLines = 1
+}
diff --git a/3-enrich/spark-enrich/build.sbt b/3-enrich/spark-enrich/build.sbt
index 3749423894..b30b411e93 100644
--- a/3-enrich/spark-enrich/build.sbt
+++ b/3-enrich/spark-enrich/build.sbt
@@ -18,6 +18,7 @@ lazy val root = project.in(file("."))
     version     := "1.12.0",
     description := "The Snowplow Spark Enrichment process"
   )
+  .settings(BuildSettings.formatting)
   .settings(BuildSettings.buildSettings)
   .settings(BuildSettings.sbtAssemblySettings)
   .settings(
diff --git a/3-enrich/spark-enrich/project/BuildSettings.scala b/3-enrich/spark-enrich/project/BuildSettings.scala
index 3243e06a0f..135205d7ba 100644
--- a/3-enrich/spark-enrich/project/BuildSettings.scala
+++ b/3-enrich/spark-enrich/project/BuildSettings.scala
@@ -15,6 +15,10 @@
 import sbt._
 import Keys._
 
+// Scalafmt plugin
+import com.lucidchart.sbt.scalafmt.ScalafmtPlugin._
+import com.lucidchart.sbt.scalafmt.ScalafmtCorePlugin.autoImport._
+
 object BuildSettings {
 
   // Basic settings for our app
@@ -82,4 +86,9 @@ object BuildSettings {
         oldStrategy(x)
     }
   )
+  lazy val formatting = Seq(
+    scalafmtConfig    := file(".scalafmt.conf"),
+    scalafmtOnCompile := true,
+    scalafmtVersion   := "1.3.0"
+  )
 }
diff --git a/3-enrich/spark-enrich/project/plugins.sbt b/3-enrich/spark-enrich/project/plugins.sbt
index 39c1bb8428..cd04e3018c 100644
--- a/3-enrich/spark-enrich/project/plugins.sbt
+++ b/3-enrich/spark-enrich/project/plugins.sbt
@@ -1 +1,5 @@
 addSbtPlugin("com.eed3si9n" % "sbt-assembly" % "0.14.3")
+
+addSbtPlugin("io.get-coursier" % "sbt-coursier" % "1.0.1")
+
+addSbtPlugin("com.lucidchart" % "sbt-scalafmt-coursier" % "1.14")