Use cs 2.1.0-M5-5-g2cb552ea9 on Windows

Needed with the cs-based mill launcher, which uses coursier bootstraps
to start Mill. This version addresses issues when using coursier from an
app launched by a coursier bootstrap on Windows (JNI issues…)

Author: alexarchambault

.github/scripts/get-latest-cs.sh

@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+set -e
+
+CS_VERSION="2.1.0-M5-5-g2cb552ea9"
+
+DIR="$(cs get --archive "https://github.com/coursier/coursier/releases/download/v$CS_VERSION/cs-x86_64-pc-win32.zip")"
+
+cp "$DIR/"*.exe cs.exe

.github/workflows/ci.yml

@@ -62,6 +62,10 @@ jobs:
     - uses: coursier/[email protected]
       with:
         jvm: "temurin:17"
+    - name: Get latest coursier launcher
+      run: .github/scripts/get-latest-cs.sh
+      shell: bash
+      if: runner.os == 'Windows'
     - name: Generate native launcher
       run: .github/scripts/generate-native-image.sh
       shell: bash

mill.bat

@@ -117,6 +117,6 @@ rem   tar -xf "!DOWNLOAD_FILE!"
 rem   move /y "cs-x86_64-pc-win32.exe" "%CS%"
 rem )
 
-echo Using system found cs command. If anything goes wrong, ensure it's at least coursier 2.1.0-M2. 1>&2
+echo Using system found cs command. If anything goes wrong, ensure it's at least coursier 2.1.0-M5-5-g2cb552ea9. 1>&2
 
 cs launch --shared org.scala-lang:scala-library "%MILL_APP_NAME%:%MILL_VERSION%" !mill_cs_opts! -- %MILL_PARAMS%