Add BOM / dependency management support

integration/feature/bom/resources/build.mill

@@ -0,0 +1,200 @@
+package build
+
+import mill._
+import mill.scalalib._
+import mill.scalalib.publish._
+
+trait TestPublishModule extends PublishModule {
+  def pomSettings = PomSettings(
+    description = artifactName(),
+    organization = "com.lihaoyi.mill-tests",
+    url = "https://github.com/com-lihaoyi/mill",
+    licenses = Seq(License.`Apache-2.0`),
+    versionControl = VersionControl.github("com-lihaoyi", "mill"),
+    developers = Nil
+  )
+  def publishVersion = "0.1.0-SNAPSHOT"
+}
+
+object bom extends Module {
+  object placeholder extends JavaModule with TestPublishModule {
+    def bomDeps = Agg(
+      ivy"com.google.cloud:libraries-bom:26.50.0"
+    )
+    def ivyDeps = Agg(
+      ivy"com.google.protobuf:protobuf-java:_"
+    )
+
+    object dependee extends JavaModule with TestPublishModule {
+      def moduleDeps = Seq(
+        placeholder
+      )
+    }
+
+    object subDependee extends JavaModule with TestPublishModule {
+      def moduleDeps = Seq(
+        dependee
+      )
+    }
+
+    object check extends JavaModule {
+      def ivyDeps = Agg(
+        ivy"com.google.protobuf:protobuf-java:_"
+      )
+    }
+  }
+
+  object versionOverride extends JavaModule with TestPublishModule {
+    def bomDeps = Agg(
+      ivy"com.google.cloud:libraries-bom:26.50.0"
+    )
+    def ivyDeps = Agg(
+      ivy"com.thesamet.scalapb:scalapbc_2.13:0.9.8"
+    )
+
+    object dependee extends JavaModule with TestPublishModule {
+      def moduleDeps = Seq(
+        versionOverride
+      )
+    }
+
+    object subDependee extends JavaModule with TestPublishModule {
+      def moduleDeps = Seq(
+        dependee
+      )
+    }
+
+    object check extends JavaModule {
+      def ivyDeps = Agg(
+        ivy"com.thesamet.scalapb:scalapbc_2.13:0.9.8"
+      )
+    }
+  }
+
+  object invalid extends Module {
+    object exclude extends JavaModule {
+      def bomDeps = Agg(
+        ivy"com.google.cloud:libraries-bom:26.50.0".exclude(("foo", "thing"))
+      )
+    }
+  }
+}
+
+object parent extends JavaModule with TestPublishModule {
+  def parentDep = Some(ivy"org.apache.spark:spark-parent_2.13:3.5.3")
+  def ivyDeps = Agg(
+    ivy"org.apache.commons:commons-compress:_"
+  )
+
+  object dependee extends JavaModule with TestPublishModule {
+    def moduleDeps = Seq(
+      parent
+    )
+  }
+
+    object subDependee extends JavaModule with TestPublishModule {
+      def moduleDeps = Seq(
+        dependee
+      )
+    }
+
+  object scala extends ScalaModule with TestPublishModule {
+    def scalaVersion = _root_.scala.util.Properties.versionNumberString
+    def parentDep = Some(ivy"org.apache.spark::spark-parent:3.5.3")
+    def ivyDeps = Agg(
+      ivy"org.apache.commons:commons-compress:_"
+    )
+  }
+
+  object invalid extends Module {
+    object exclude extends JavaModule {
+      def parentDep = Some(
+        ivy"org.apache.spark:spark-parent_2.13:3.5.3".exclude(("foo", "thing"))
+      )
+    }
+  }
+}
+
+object depMgmt extends JavaModule with TestPublishModule {
+  def ivyDeps = Agg(
+    ivy"com.thesamet.scalapb:scalapbc_2.13:0.9.8"
+  )
+  def dependencyManagement = Agg(
+    ivy"com.google.protobuf:protobuf-java:4.28.3"
+  )
+
+  object transitive extends JavaModule with TestPublishModule {
+    def moduleDeps = Seq(depMgmt)
+  }
+
+  object extraExclude extends JavaModule with TestPublishModule {
+    def ivyDeps = Agg(
+      ivy"com.lihaoyi:cask_2.13:0.9.4"
+    )
+    def dependencyManagement = Agg(
+      // The exclude should be automatically added to the dependency above
+      // thanks to dependency management, but the version should be left
+      // untouched
+      ivy"com.lihaoyi:cask_2.13:0.9.3"
+        .exclude(("org.slf4j", "slf4j-api"))
+    )
+
+    object transitive extends JavaModule with TestPublishModule {
+      def moduleDeps = Seq(extraExclude)
+    }
+  }
+
+  object exclude extends JavaModule with TestPublishModule {
+    def ivyDeps = Agg(
+      ivy"com.lihaoyi:cask_2.13:0.9.4"
+    )
+    def dependencyManagement = Agg(
+      ivy"org.java-websocket:Java-WebSocket:1.5.2"
+        .exclude(("org.slf4j", "slf4j-api"))
+    )
+
+    object transitive extends JavaModule with TestPublishModule {
+      def moduleDeps = Seq(exclude)
+    }
+  }
+
+  object onlyExclude extends JavaModule with TestPublishModule {
+    def ivyDeps = Agg(
+      ivy"com.lihaoyi:cask_2.13:0.9.4"
+    )
+    def dependencyManagement = Agg(
+      ivy"org.java-websocket:Java-WebSocket:_"
+        .exclude(("org.slf4j", "slf4j-api"))
+    )
+
+    object transitive extends JavaModule with TestPublishModule {
+      def moduleDeps = Seq(onlyExclude)
+    }
+  }
+
+  object invalid extends Module {
+    object transitive extends JavaModule {
+      def dependencyManagement = {
+        val dep = ivy"org.java-websocket:Java-WebSocket:1.5.3"
+        Agg(
+          dep.copy(
+            dep = dep.dep.withTransitive(false)
+          )
+        )
+      }
+    }
+  }
+
+  object placeholder extends JavaModule with TestPublishModule {
+    def ivyDeps = Agg(
+      ivy"com.google.protobuf:protobuf-java:_"
+    )
+    def dependencyManagement = Agg(
+      ivy"com.google.protobuf:protobuf-java:4.28.3"
+    )
+
+    object transitive extends JavaModule with TestPublishModule {
+      def moduleDeps = Seq(placeholder)
+    }
+  }
+}