Drop 2.12, add MiMa check, prepare for 1.1.0 release

.github/workflows/ci.yml

@@ -12,7 +12,6 @@ jobs:
         scala:
           - 2.13.14
           - 3.3.3
-          - 2.12.18
 
     steps:
       - uses: actions/checkout@v2
@@ -25,7 +24,7 @@ jobs:
           java-version: [email protected]
 
       - name: build ${{ matrix.scala }}
-        run: sbt ++${{ matrix.scala }} clean coverage test
+        run: sbt ++${{ matrix.scala }} clean check coverage test
 
       - name: test coverage
         if: success()

build.sbt

@@ -1,24 +1,23 @@
-import Dependencies._
+import Dependencies.*
 
 name := "akka-serialization"
 
 organization := "com.evolutiongaming"
 
-homepage := Some(url("http://github.com/evolution-gaming/akka-serialization"))
+homepage := Some(url("https://github.com/evolution-gaming/akka-serialization"))
 
 startYear := Some(2018)
 
 organizationName := "Evolution"
 
 organizationHomepage := Some(url("https://evolution.com"))
 
-crossScalaVersions := Seq("3.3.3", "2.13.14", "2.12.18")
+crossScalaVersions := Seq("3.3.3", "2.13.14")
 scalaVersion := crossScalaVersions.value.head
 
 
 scalacOptions ++= {
   CrossVersion.partialVersion(scalaVersion.value) match {
-    case Some((3, _))  => Seq("-Xsource-features:package-prefix-implicits")
     case Some((2, 13)) => Seq("-Xsource:3", "-Ytasty-reader")
     case _             => Seq.empty
   }
@@ -34,7 +33,10 @@ libraryDependencies ++= (CrossVersion.partialVersion(scalaVersion.value) match {
       Scodec.core2 % Optional
     )
 })
-libraryDependencies ++= Seq(Akka.actor, scalatest % Test)
+libraryDependencies ++= Seq(
+  Akka.actor,
+  scalatest % Test,
+)
 
 publishTo := Some(Resolver.evolutionReleases)
 
@@ -44,7 +46,26 @@ releaseCrossBuild := true
 
 Compile / doc / scalacOptions ++= Seq("-groups", "-implicits", "-no-link-warnings")
 
-scalacOptsFailOnWarn := Some(false)
+addCommandAlias("check", "+all versionPolicyCheck Compile/doc")
+addCommandAlias("build", "+all test package")
 
-//addCommandAlias("check", "all versionPolicyCheck Compile/doc")
-addCommandAlias("check", "show version")
+// Your next release will be binary compatible with the previous one,
+// but it may not be source compatible (ie, it will be a minor release).
+ThisBuild / versionPolicyIntention := Compatibility.BinaryCompatible
+
+//TODO: after 1.1.0 release - clear up versionPolicyIgnored section
+/*
+versionPolicyReportDependencyIssues ignored dependencies when compared to akka-serialization 1.0.5.
+All of those should not affect the library users, binary compatibility should be preserved.
+ */
+ThisBuild / versionPolicyIgnored ++= Seq(
+  //com.chuusai:shapeless_2.13: missing dependency
+  "com.chuusai" %% "shapeless",
+  //org.scala-lang.modules:scala-java8-compat_2.13:
+  //  incompatible version change from 0.9.0 to 1.0.0 (compatibility: early semantic versioning)
+  "org.scala-lang.modules" %% "scala-java8-compat",
+  //org.scodec:scodec-bits_2.13: missing dependency
+  "org.scodec" %% "scodec-bits",
+  //org.scodec:scodec-core_2.13: missing dependency
+  "org.scodec" %% "scodec-core",
+)

project/Dependencies.scala

@@ -1,8 +1,8 @@
-import sbt._
+import sbt.*
 
 object Dependencies {
 
-  val scalatest = "org.scalatest" %% "scalatest" % "3.2.17"
+  val scalatest = "org.scalatest" %% "scalatest" % "3.2.19"
 
   object Akka {
     private val version = "2.6.21"

project/build.properties

@@ -1 +1 @@
-sbt.version=1.9.9
+sbt.version=1.10.1

project/plugins.sbt

@@ -1,9 +1,11 @@
-addSbtPlugin("org.scoverage" % "sbt-scoverage" % "2.0.12")
+addSbtPlugin("org.scoverage" % "sbt-scoverage" % "2.1.1")
 
-addSbtPlugin("org.scoverage" % "sbt-coveralls" % "1.3.11")
+addSbtPlugin("org.scoverage" % "sbt-coveralls" % "1.3.13")
 
 addSbtPlugin("com.github.sbt" % "sbt-release" % "1.4.0")
 
 addSbtPlugin("com.evolution" % "sbt-scalac-opts-plugin" % "0.0.9")
 
-addSbtPlugin("com.evolution" % "sbt-artifactory-plugin" % "0.0.2")
+addSbtPlugin("com.evolution" % "sbt-artifactory-plugin" % "0.0.2")
+
+addSbtPlugin("ch.epfl.scala" % "sbt-version-policy" % "3.2.1")

version.sbt

@@ -1 +1 @@
-ThisBuild / version := "1.0.6-SNAPSHOT"
+ThisBuild / version := "1.1.0-SNAPSHOT"