Allow to pass Java options to Bloop on the command-line (#162)

Author: alexarchambault

modules/cli/src/main/scala/scala/cli/commands/BloopStart.scala

@@ -15,7 +15,7 @@ object BloopStart extends ScalaCommand[BloopStartOptions] {
   )
   def run(options: BloopStartOptions, args: RemainingArgs): Unit = {
     val threads          = BloopThreads.create()
-    val bloopRifleConfig = options.bloopRifleConfig
+    val bloopRifleConfig = options.bloopRifleConfig()
     val logger           = options.logging.logger
 
     val isRunning =

modules/cli/src/main/scala/scala/cli/commands/SharedCompilationServerOptions.scala

@@ -53,7 +53,12 @@ final case class SharedCompilationServerOptions(
   @Group("Compilation server")
   @HelpMessage("Maximum duration to wait for compilation server to start up")
   @ValueDescription("duration")
-    bloopStartupTimeout: Option[String] = None
+    bloopStartupTimeout: Option[String] = None,
+
+  @Group("Compilation server")
+    bloopDefaultJavaOpts: Boolean = true,
+  @Group("Compilation server")
+    bloopJavaOpt: List[String] = Nil
 ) {
   // format: on
 
@@ -177,7 +182,8 @@ final case class SharedCompilationServerOptions(
       bspStderr = if (verbosity >= 3) Some(System.err) else None,
       period = bloopBspCheckPeriodDuration.getOrElse(baseConfig.period),
       timeout = bloopBspTimeoutDuration.getOrElse(baseConfig.timeout),
-      initTimeout = bloopStartupTimeoutDuration.getOrElse(baseConfig.initTimeout)
+      initTimeout = bloopStartupTimeoutDuration.getOrElse(baseConfig.initTimeout),
+      javaOpts = (if (bloopDefaultJavaOpts) baseConfig.javaOpts else Nil) ++ bloopJavaOpt
     )
   }
 

website/docs/reference/cli-options.md

@@ -92,6 +92,10 @@ Duration between checks of the BSP connection state
 
 Maximum duration to wait for compilation server to start up
 
+#### `--bloop-default-java-opts`
+
+#### `--bloop-java-opt`
+
 ## Compile options
 
 Available in commands: