From fe81e9d8cc7ac425891080684648291b241c6709 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Doeraene?= <sjrdoeraene@gmail.com>
Date: Fri, 31 May 2024 17:27:41 +0200
Subject: [PATCH] Add support for Scala Native 0.5.x.

Unfortunately, there is no patch Scala version in common between
Scala.js 0.6.x and Scala Native 0.5.x. This means we have to force
different versions when building for Native 0.5.x.
---
 .github/workflows/ci.yml | 15 +++++++++++----
 build.sbt                | 10 ++++++++--
 project/plugins.sbt      |  5 ++++-
 3 files changed, 23 insertions(+), 7 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 03cf154..8df4e32 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -14,9 +14,16 @@ jobs:
       matrix:
         scalaversion: ["2.11.12", "2.12.13", "2.13.4"]
         platform: ["JVM", "JS", "JS-0.6.x", "Native"]
+        include:
+          # Earliest Scala versions supported by Scala Native 0.5.x
+          - scalaversion: "2.12.14"
+            platform: "Native-0.5.x"
+          - scalaversion: "2.13.8"
+            platform: "Native-0.5.x"
     env:
       SCALAJS_VERSION: "${{ matrix.platform == 'JS-0.6.x' && '0.6.33' || '' }}"
-      PROJECT_NAME: "portable-scala-reflect${{ matrix.platform == 'JS-0.6.x' && 'JS' || matrix.platform }}"
+      SCALANATIVE_VERSION: "${{ matrix.platform == 'Native-0.5.x' && '0.5.2' || '' }}"
+      PROJECT_NAME: "portable-scala-reflect${{ matrix.platform == 'JS-0.6.x' && 'JS' || matrix.platform == 'Native-0.5.x' && 'Native' || matrix.platform }}"
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-node@v4
@@ -27,8 +34,8 @@ jobs:
           java-version: "adopt@1.8"
       - uses: coursier/cache-action@v5
       - name: Unit tests
-        run: sbt "++${{ matrix.scalaversion }}" "${{ env.PROJECT_NAME }}/test"
+        run: sbt "++${{ matrix.scalaversion }}!" "${{ env.PROJECT_NAME }}/test"
       - name: Test generate documentation
-        run: sbt "++${{ matrix.scalaversion }}" "${{ env.PROJECT_NAME }}/doc"
+        run: sbt "++${{ matrix.scalaversion }}!" "${{ env.PROJECT_NAME }}/doc"
       - name: MiMa
-        run: sbt "++${{ matrix.scalaversion }}" "${{ env.PROJECT_NAME }}/mimaReportBinaryIssues"
+        run: sbt "++${{ matrix.scalaversion }}!" "${{ env.PROJECT_NAME }}/mimaReportBinaryIssues"
diff --git a/build.sbt b/build.sbt
index 7155c32..a9ee6fc 100644
--- a/build.sbt
+++ b/build.sbt
@@ -32,8 +32,14 @@ lazy val `portable-scala-reflect` = crossProject(JSPlatform, JVMPlatform, Native
   .settings(
     scalacOptions in (Compile, doc) -= "-Xfatal-warnings",
 
-    mimaPreviousArtifacts +=
-      organization.value %%% moduleName.value % previousVersion,
+    mimaPreviousArtifacts ++= {
+      val isNewInThisRelease = System.getenv("SCALANATIVE_VERSION") == "0.5.2"
+      if (isNewInThisRelease)
+        Set.empty
+      else
+        Set(organization.value %%% moduleName.value % previousVersion)
+    },
+    mimaFailOnNoPrevious := false,
 
     publishMavenStyle := true,
     publishTo := {
diff --git a/project/plugins.sbt b/project/plugins.sbt
index 89f9831..665f703 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -1,10 +1,13 @@
 val scalaJSVersion =
   Option(System.getenv("SCALAJS_VERSION")).filter(_ != "").getOrElse("1.0.0")
 
+val scalaNativeVersion =
+  Option(System.getenv("SCALANATIVE_VERSION")).filter(_ != "").getOrElse("0.4.4")
+
 addSbtPlugin("org.scala-js" % "sbt-scalajs" % scalaJSVersion)
 addSbtPlugin("org.portable-scala" % "sbt-scalajs-crossproject" % "1.3.2")
 
-addSbtPlugin("org.scala-native" % "sbt-scala-native" % "0.4.4")
+addSbtPlugin("org.scala-native" % "sbt-scala-native" % scalaNativeVersion)
 addSbtPlugin("org.portable-scala" % "sbt-scala-native-crossproject" % "1.3.2")
 
 addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "0.8.1")