Attempt cross-build to scala 3

.github/workflows/ci.yml

@@ -27,7 +27,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        scala: [2.13.15, 2.12.20]
+        scala: [2.13.15, 2.12.20, 3.3.4]
         java: [temurin@21]
     runs-on: ${{ matrix.os }}
     steps:
@@ -54,8 +54,6 @@ jobs:
           HONEYCOMB_WRITE_KEY: ${{ secrets.HONEYCOMB_WRITE_KEY }}
         run: sbt '++ ${{ matrix.scala }}' test
 
-      - run: 'bash <(curl -s https://codecov.io/bash)'
-
       - name: Compress target directories
         run: tar cf targets.tar target project/target
 
@@ -112,6 +110,16 @@ jobs:
           tar xf targets.tar
           rm targets.tar
 
+      - name: Download target directories (3.3.4)
+        uses: actions/download-artifact@v4
+        with:
+          name: target-${{ matrix.os }}-3.3.4-${{ matrix.java }}
+
+      - name: Inflate target directories (3.3.4)
+        run: |
+          tar xf targets.tar
+          rm targets.tar
+
       - run: |
           git config user.name "Github Actions (dimitarg/weaver-test-extra)"
           git config user.email "[email protected]"

build.sbt

@@ -5,8 +5,8 @@ name := "weaver-test-extra"
 ThisBuild / organization := "io.github.dimitarg"
 
 ThisBuild / scalaVersion := "2.13.15"
-ThisBuild / crossScalaVersions := Seq("2.13.15", "2.12.20")
-ThisBuild / githubWorkflowScalaVersions  := Seq("2.13.15", "2.12.20")
+ThisBuild / crossScalaVersions := Seq("2.13.15", "2.12.20", "3.3.4")
+ThisBuild / githubWorkflowScalaVersions  := Seq("2.13.15", "2.12.20", "3.3.4")
 
 ThisBuild / githubWorkflowJavaVersions  := Seq(JavaSpec.temurin("21"))
 
@@ -34,9 +34,10 @@ ThisBuild / githubWorkflowPublishTargetBranches += RefPredicate.Equals(Ref.Branc
 
 ThisBuild / licenses += ("Apache-2.0", url("https://opensource.org/licenses/Apache-2.0"))
 
-ThisBuild / githubWorkflowBuildPostamble := Seq(WorkflowStep.Run(
-  commands = List("bash <(curl -s https://codecov.io/bash)")
-))
+// scoverage plugin not yet supporting scala 2.13.15
+// ThisBuild / githubWorkflowBuildPostamble := Seq(WorkflowStep.Run(
+//   commands = List("bash <(curl -s https://codecov.io/bash)")
+// ))
 
 ThisBuild / githubWorkflowPublishPreamble := Seq(WorkflowStep.Run(
   List(