Add support for testing different SN versions in the CI

Author: jchyb

.github/workflows/CI.yml

@@ -4,14 +4,20 @@ jobs:
   test-all:
     runs-on: ${{matrix.OS}}
     strategy:
+      fail-fast: false
       matrix:
         OS: [ubuntu-18.04, windows-2019]
+        SN: [0.4.0, 0.4.1, 0.4.2]
+        exclude:
+          # does not support windows
+          - OS: windows-2019
+            SN: 0.4.0
     steps:
       - uses: actions/checkout@v2
       - uses: olafurpg/setup-scala@v13
       - name: Unit tests
-        run: sbt cli/test
+        run: SN_CLI_VERSION=${{matrix.SN}} sbt cli/test
         shell: bash
       - name: Intergration tests
-        run: sbt cliIntegration/scripted
+        run: SN_CLI_VERSION=${{matrix.SN}} sbt cliIntegration/scripted
         shell: bash

.github/workflows/check-lint.yml

@@ -5,11 +5,5 @@ jobs:
   check-lint:
     runs-on: ubuntu-18.04
     steps:
-      - name: Install clang-format
-        run: |
-          sudo apt update
-          sudo apt install clang-format-6.0
       - uses: actions/checkout@v2
       - run: ./scripts/check-lint.sh
-        env:
-          CLANG_FORMAT_PATH: "/usr/bin/clang-format-6.0"

build.sbt

@@ -1,5 +1,15 @@
 scalaVersion := "2.12.15"
-val nativeVersion = "0.4.1"
+
+// TODO remove and settle for one version after release
+val nativeVersion = sys.env.get("SN_CLI_VERSION") match {
+  case Some(value) => "0.4.1"
+  case None        => "0.4.0"
+}
+val versionTag =
+  if (nativeVersion == "0.4.0") "0.4.0"
+  else "newer"
+//
+
 val cliVersion = nativeVersion + "-SNAPSHOT"
 
 inThisBuild(
@@ -18,8 +28,8 @@ lazy val cli = project
     libraryDependencies += "com.github.alexarchambault" %% "case-app" % "2.1.0-M10",
     libraryDependencies += "org.scalatest" %% "scalatest" % "3.1.1" % Test,
     assembly / assemblyJarName := "scala-native-cli.jar", // Used for integration tests.
-    Compile / unmanagedSourceDirectories += baseDirectory.value / s"version_${nativeVersion}/src/main/scala",
-    Test / unmanagedSourceDirectories += baseDirectory.value / s"version_${nativeVersion}/src/test/scala"
+    Compile / unmanagedSourceDirectories += baseDirectory.value / s"version_${versionTag}/src/main/scala",
+    Test / unmanagedSourceDirectories += baseDirectory.value / s"version_${versionTag}/src/test/scala"
   )
 
 // Meant to resolve classpath dependencies, provide compiled nir