Scala Version Approach (#14)

Scala Version Approach

.travis.yml

@@ -14,25 +14,25 @@ stages:
     if: ((branch = master AND type = push) OR (tag IS present)) AND NOT fork
 
 
+scala_version_212: &scala_version_212 "2.12.10"
+scala_version_213: &scala_version_213 "2.13.0"
+
 jobs:
   include:
     # stage="test" if no stage is specified
-    - name: test 2.13
-      scala: 2.13.0
-      script: sbt ++$TRAVIS_SCALA_VERSION test
     -
-      name: test 2.12
-      scala: 2.12.8
+      name: test 2.13
+      scala: *scala_version_213
       script: sbt ++$TRAVIS_SCALA_VERSION test
-    - name: test 2.11
-      scala: 2.11.12
+    - name: test 2.12
+      scala: *scala_version_212
       script: sbt ++$TRAVIS_SCALA_VERSION test
     -
       name: mima
       script: sbt +mimaReportBinaryIssues
     -
       name: docs
-      scala: 2.12.8
+      scala: *scala_version_212
       install:
         - rvm use 2.6.0 --install --fuzzy
         - gem update --system
@@ -45,7 +45,7 @@ jobs:
       script: sbt ci-release
     - stage: release
       name: microsite
-      scala: 2.12.8
+      scala: *scala_version_212
       install:
         - rvm use 2.6.0 --install --fuzzy
         - gem update --system

build.sbt

@@ -6,7 +6,7 @@ lazy val `cats-effect-time` = project.in(file("."))
   .aggregate(core)
 
 lazy val core = project.in(file("core"))
-  .settings(commonSettings, releaseSettings, mimaSettings)
+  .settings(commonSettings, releaseSettings)
   .settings(
     name := "cats-effect-time"
   )
@@ -34,8 +34,8 @@ val betterMonadicForV = "0.3.1"
 lazy val commonSettings = Seq(
   organization := "io.chrisdavenport",
 
-  scalaVersion := "2.12.8",
-  crossScalaVersions := Seq("2.13.0", scalaVersion.value, "2.11.12"),
+  scalaVersion := "2.13.0",
+  crossScalaVersions := Seq(scalaVersion.value, "2.12.10"),
 
   scalacOptions in (Compile, doc) ++= Seq(
       "-groups",
@@ -84,60 +84,6 @@ lazy val releaseSettings = {
   )
 }
 
-lazy val mimaSettings = {
-
-  def semverBinCompatVersions(major: Int, minor: Int, patch: Int): Set[(Int, Int, Int)] = {
-    val majorVersions: List[Int] =
-      if (major == 0 && minor == 0) List.empty[Int] // If 0.0.x do not check MiMa
-      else List(major)
-    val minorVersions : List[Int] =
-      if (major >= 1) Range(0, minor).inclusive.toList
-      else List(minor)
-    def patchVersions(currentMinVersion: Int): List[Int] = 
-      if (minor == 0 && patch == 0) List.empty[Int]
-      else if (currentMinVersion != minor) List(0)
-      else Range(0, patch - 1).inclusive.toList
-
-    val versions = for {
-      maj <- majorVersions
-      min <- minorVersions
-      pat <- patchVersions(min)
-    } yield (maj, min, pat)
-    versions.toSet
-  }
-
-  def mimaVersions(version: String): Set[String] = {
-    Version(version) match {
-      case Some(Version(major, Seq(minor, patch), _)) =>
-        semverBinCompatVersions(major.toInt, minor.toInt, patch.toInt)
-          .map{case (maj, min, pat) => maj.toString + "." + min.toString + "." + pat.toString}
-      case _ =>
-        Set.empty[String]
-    }
-  }
-  // Safety Net For Exclusions
-  lazy val excludedVersions: Set[String] = Set()
-
-  // Safety Net for Inclusions
-  lazy val extraVersions: Set[String] = Set()
-
-  Seq(
-    mimaFailOnNoPrevious := false,
-    mimaFailOnProblem := mimaVersions(version.value).toList.headOption.isDefined,
-    mimaPreviousArtifacts := (mimaVersions(version.value) ++ extraVersions)
-      .filterNot(excludedVersions.contains(_))
-      .map{v => 
-        val moduleN = moduleName.value + "_" + scalaBinaryVersion.value.toString
-        organization.value % moduleN % v
-      },
-    mimaBinaryIssueFilters ++= {
-      import com.typesafe.tools.mima.core._
-      import com.typesafe.tools.mima.core.ProblemFilters._
-      Seq()
-    }
-  )
-}
-
 lazy val micrositeSettings = {
   import microsites._
   Seq(

project/plugins.sbt

@@ -6,3 +6,4 @@ addSbtPlugin("com.47deg" % "sbt-microsites" % "0.9.4")
 addSbtPlugin("com.typesafe.sbt" % "sbt-ghpages" % "0.6.3")
 addSbtPlugin("org.portable-scala" % "sbt-scalajs-crossproject" % "0.6.1")
 addSbtPlugin("org.scala-js" % "sbt-scalajs" % "0.6.29")
+addSbtPlugin("io.chrisdavenport" % "sbt-mima-version-check" % "0.1.0")