Update SBT to 0.13.16 and fix deprecations

README.md

@@ -55,12 +55,12 @@ checkstyleConfigLocation := CheckstyleConfigLocation.Classpath("com/etsy/checkst
 
 To run Checkstyle automatically after compilation:
 ```scala
-(checkstyle in Compile) <<= (checkstyle in Compile) triggeredBy (compile in Compile)
+(checkstyle in Compile) := (checkstyle in Compile).triggeredBy(compile in Compile).value
 ```
 
 To run Checkstyle automatically after test compilation:
 ```scala
-(checkstyle in Test) <<= (checkstyle in Test) triggeredBy (compile in Test)
+(checkstyle in Test) := (checkstyle in Test).triggeredBy(compile in Test).value
 ```
 
 ### XSLT transformations
@@ -92,8 +92,8 @@ lazy val root = (project in file(".")).configs(IntegrationTest)
 Defaults.itSettings
 
 checkstyleConfigLocation := CheckstyleConfigLocation.File("my-checkstyle-config.xml"),
-checkstyle in IntegrationTest <<= checkstyleTask(IntegrationTest),
-checkstyleOutputFile in IntegrationTest <<= target(_ / "checkstyle-integration-test-report.xml")
+checkstyle in IntegrationTest := checkstyleTask(IntegrationTest).value,
+checkstyleOutputFile in IntegrationTest := target.value / "checkstyle-integration-test-report.xml"
 ```
 
 You can then run the tasks `it:checkstyle` and `it:checkstyle-check`.

project/build.properties

@@ -1 +1 @@
-sbt.version=0.13.9
+sbt.version=0.13.16

project/scripted.sbt

@@ -1,3 +1 @@
-libraryDependencies <+= (sbtVersion) { sv =>
-  "org.scala-sbt" % "scripted-plugin" % sv
-}
+libraryDependencies += "org.scala-sbt" % "scripted-plugin" % sbtVersion.value

src/main/scala/com/etsy/sbt/checkstyle/CheckstylePlugin.scala

@@ -47,11 +47,11 @@ object CheckstylePlugin extends AutoPlugin {
   )
 
   override lazy val projectSettings: Seq[Def.Setting[_]] = Seq(
-    checkstyleOutputFile <<= target(_ / "checkstyle-report.xml"),
-    checkstyleOutputFile in Test <<= target(_ / "checkstyle-test-report.xml"),
+    checkstyleOutputFile := target.value / "checkstyle-report.xml",
+    checkstyleOutputFile in Test := target.value / "checkstyle-test-report.xml",
     checkstyleConfigLocation := com.etsy.sbt.checkstyle.CheckstyleConfigLocation.File("checkstyle-config.xml"),
-    checkstyleConfigLocation in Test <<= checkstyleConfigLocation,
-    checkstyle <<= checkstyleTask(Compile),
-    checkstyle in Test <<= checkstyleTask(Test)
+    checkstyleConfigLocation in Test := checkstyleConfigLocation.value,
+    checkstyle := checkstyleTask(Compile).value,
+    checkstyle in Test := checkstyleTask(Test).value
   ) ++ commonSettings
 }

src/sbt-test/checkstyle/checkstyle-auto/build.sbt

@@ -6,4 +6,4 @@ organization := "com.etsy"
 
 checkstyleConfigLocation := CheckstyleConfigLocation.File("checkstyle-config.xml")
 
-(checkstyle in Compile) <<= (checkstyle in Compile) triggeredBy (compile in Compile)
+(checkstyle in Compile) := (checkstyle in Compile).triggeredBy(compile in Compile).value

src/sbt-test/checkstyle/checkstyle-integration-test/build.sbt

@@ -9,5 +9,5 @@ lazy val root = (project in file(".")).configs(IntegrationTest)
 Defaults.itSettings
 
 checkstyleConfigLocation := CheckstyleConfigLocation.File("my-checkstyle-config.xml")
-checkstyle in IntegrationTest <<= checkstyleTask(IntegrationTest)
-checkstyleOutputFile in IntegrationTest <<= target(_ / "checkstyle-integration-test-report.xml")
+checkstyle in IntegrationTest := checkstyleTask(IntegrationTest).value
+checkstyleOutputFile in IntegrationTest := target.value / "checkstyle-integration-test-report.xml"

src/sbt-test/checkstyle/checkstyle-test-auto/build.sbt

@@ -4,4 +4,4 @@ name := "checkstyle-test-auto"
 
 organization := "com.etsy"
 
-(checkstyle in Test) <<= (checkstyle in Test) triggeredBy (compile in Test)
+(checkstyle in Test) := (checkstyle in Test).triggeredBy(compile in Test).value