build: migrate to mill 0.12.5

Signed-off-by: unlsycn <[email protected]>

.github/workflows/test.yml

@@ -90,7 +90,7 @@ jobs:
           $CHISEL_FIRTOOL_PATH/firtool -version >> $GITHUB_STEP_SUMMARY
           echo \`\`\` >> $GITHUB_STEP_SUMMARY
       - name: Test
-        run: ./mill -j0 firrtl[].test + svsim[].test + chisel[].test
+        run: ./mill -j0 firrtl.cross[].test + svsim[].test + chisel[].test
       - name: Binary compatibility
         # TODO either make this also check the plugin or decide that we don't
         #      support binary compatibility for the plugin
@@ -183,7 +183,7 @@ jobs:
           dir=$(dirname $(which firtool))
           echo "CHISEL_FIRTOOL_PATH=$dir" >> "$GITHUB_ENV"
       - name: Integration Tests
-        run: ./mill -j0 integrationTests[].test
+        run: ./mill -j0 integration-tests.cross[].test
 
   # Currently just a sanity check that the benchmarking flow works
   benchmark:
@@ -221,7 +221,7 @@ jobs:
           distribution: 'adopt'
           java-version: '11'
       - name: Compile
-        run: ./mill stdlib[_].compile
+        run: ./mill stdlib.cross[_].compile
 
   website:
     name: Build Mdoc & Website

.mill-version

@@ -1 +1 @@
-0.11.8
+0.12.5

benchmark/package.mill

@@ -0,0 +1,16 @@
+package build.benchmark
+
+import mill._
+import mill.scalalib._
+import mill.scalalib.scalafmt._
+import $ivy.`com.lihaoyi::mill-contrib-jmh:`
+import mill.contrib.jmh.JmhModule
+
+import build._
+
+object `package` extends RootModule with ScalaModule with JmhModule with ScalafmtModule {
+  def scalaVersion = v.scalaVersion
+  def jmhCoreVersion = v.jmhVersion
+
+  override def moduleDeps = Seq(chisel(v.scalaVersion))
+}