feature: Cross-compile for Play 2.8

.circleci/config.yml

@@ -1,7 +1,7 @@
 version: 2.1
 
 orbs:
-  codacy: codacy/base@10.1.0
+  codacy: codacy/base@10.9.0
 
 workflows:
   version: 2
@@ -27,7 +27,7 @@ workflows:
                 command: sbt scalafmtSbtCheck
             - run:
                 name: Run tests
-                command: sbt test
+                command: sbt crossTest
             - run:
                 name: Generate coverage report
                 command: sbt coverageReport
@@ -58,7 +58,7 @@ workflows:
                 command: sbt retrieveGPGKeys
             - run:
                 name: Create publish bundle
-                command: sbt publishSigned
+                command: sbt crossPublishSigned
             - run:
                 name: Release bundle to Sonatype
                 command: sbt sonatypeBundleRelease
@@ -75,6 +75,6 @@ workflows:
                 command: echo 'privateMvnPublish' > publishing.sbt
             - run:
                 name: Publish to S3
-                command: sbt publish
+                command: sbt crossPublish
           requires:
             - tag_version

build.sbt

@@ -2,14 +2,22 @@ name := """bitbucket-scala-client"""
 
 val scala212 = "2.12.10"
 
+val play27 = "2.7.4"
+val play28 = "2.8.2"
+
+lazy val playJsonVersion = settingKey[String]("The version of play-json used for building.")
+ThisBuild / playJsonVersion := play27
+
 scalaVersion := scala212
 
 scalacOptions := Seq("-deprecation", "-feature", "-unchecked", "-Ywarn-adapted-args", "-Xlint")
 
 resolvers +=
   "Typesafe maven repository" at "https://repo.typesafe.com/typesafe/maven-releases/"
 
-libraryDependencies ++= Dependencies.playJson ++ Seq("org.scalatest" %% "scalatest" % "3.0.8" % Test)
+libraryDependencies ++= Dependencies.playJson(playJsonVersion.value) ++ Seq(
+  "org.scalatest" %% "scalatest" % "3.0.8" % Test
+)
 
 organizationName := "Codacy"
 
@@ -31,4 +39,35 @@ scmInfo := Some(
 pgpPassphrase := Option(System.getenv("SONATYPE_GPG_PASSPHRASE"))
   .map(_.toCharArray)
 
-name := s"${name.value}_playjson${Dependencies.playVersion.split('.').take(2).mkString}"
+name := s"${name.value}_playjson${playJsonVersion.value.split('.').take(2).mkString}"
+
+/**
+  * Given a command it creates an alias to run the command
+  * on the entire matrix of play and scala versions.
+  * If the command has `:` in it (like test:compile)
+  * the alias becomes crossTestCompile instead of crossTest:compile
+  * (which is not an allowed sbt alias name)
+  */
+def addCrossAlias(command: String) = {
+  val matrix = Seq(scala212 -> Seq(play27, play28))
+
+  addCommandAlias(
+    s"cross${command.split(':').map(_.capitalize).mkString}",
+    matrix
+      .flatMap {
+        case (scalaV, playVersions) =>
+          s"""set ThisBuild / scalaVersion := "$scalaV"""" +: playVersions
+            .flatMap(playV => Seq(s"""set ThisBuild / playJsonVersion := "$playV"""", command))
+      }
+      .mkString(";")
+  )
+}
+
+// List of crossX aliases.
+// Add a command here if you want to call it for
+// the entire playVersion / scalaVersion matrix
+addCrossAlias("update")
+addCrossAlias("compile")
+addCrossAlias("test:compile")
+addCrossAlias("test")
+addCrossAlias("publishSigned")

project/Dependencies.scala

@@ -1,12 +1,17 @@
 import sbt._
 
 object Dependencies {
-  val playVersion: String = "2.7.4"
 
-  val playJson = Seq(
-    "com.typesafe.play" %% "play-json-joda" % playVersion,
-    "com.typesafe.play" %% "play-ahc-ws-standalone" % "2.0.8",
-    "com.typesafe.play" %% "play-ws-standalone-json" % "2.0.8"
-  )
+  def playJson(playJsonVersion: String) = {
+    val playwsVersion =
+      if (playJsonVersion.startsWith("2.8.")) "2.1.11"
+      else if (playJsonVersion.startsWith("2.7.")) "2.0.8"
+      else sys.error("Missing play-ws version. Check the compatible version based on its pom")
+    Seq(
+      "com.typesafe.play" %% "play-json-joda" % playJsonVersion,
+      "com.typesafe.play" %% "play-ahc-ws-standalone" % playwsVersion,
+      "com.typesafe.play" %% "play-ws-standalone-json" % playwsVersion
+    )
+  }
 
 }