Introduce lsp-kernel module

Author: kubukoz

build.sbt

@@ -198,29 +198,38 @@ lazy val core = module("core")
 lazy val languageSupport = module("language-support")
   .dependsOn(core % "test->test;compile->compile", parser)
 
-// Adapters for language services to LSP, actual LSP server binding, entrypoint
-lazy val lsp = module("lsp")
+// LSP features that aren't specific to any given lsp library (lsp4j, langoustine)
+lazy val lspKernel = module("lsp-kernel")
   .settings(
     libraryDependencies ++= Seq(
-      "org.eclipse.lsp4j" % "org.eclipse.lsp4j" % "0.24.0",
       "io.circe" %% "circe-core" % "0.14.12",
       "org.http4s" %% "http4s-ember-client" % "0.23.30",
-      "org.http4s" %% "http4s-ember-server" % "0.23.30" % Test,
       ("io.get-coursier" % "coursier_2.13" % "2.1.24")
         .exclude("org.scala-lang.modules", "scala-collection-compat_2.13"),
       "org.typelevel" %% "cats-tagless-core" % "0.16.3",
-    ).pipe(jsoniterFix),
+    ).pipe(jsoniterFix)
+  )
+  .enablePlugins(BuildInfoPlugin)
+  .settings(
     buildInfoPackage := "playground.lsp.buildinfo",
     buildInfoKeys ++= Seq(version, scalaBinaryVersion),
+  )
+  .dependsOn(languageSupport)
+
+lazy val lsp = module("lsp")
+  .settings(
+    libraryDependencies ++= Seq(
+      "org.eclipse.lsp4j" % "org.eclipse.lsp4j" % "0.24.0",
+      "org.http4s" %% "http4s-ember-server" % "0.23.30" % Test,
+    ),
     (Test / test) := {
       (pluginCore / publishLocal).value
       (pluginSample / publishLocal).value
 
       (Test / test).value
     },
   )
-  .enablePlugins(BuildInfoPlugin)
-  .dependsOn(languageSupport)
+  .dependsOn(lspKernel)
 
 lazy val e2e = module("e2e")
   .enablePlugins(BuildInfoPlugin)

modules/lsp/src/main/scala/playground/lsp/BuildLoader.scala modules/lsp-kernel/src/main/scala/playground/lsp/BuildLoader.scala

@@ -1,4 +1,4 @@
-package playground
+package playground.lsp
 
 import cats.data.OptionT
 import cats.effect.Concurrent

modules/lsp/src/main/scala/playground/lsp/ConfigurationValue.scala modules/lsp-kernel/src/main/scala/playground/lsp/ConfigurationValue.scala

@@ -14,16 +14,13 @@ import cats.~>
 import com.google.gson.JsonElement
 import com.google.gson.JsonPrimitive
 import org.eclipse.lsp4j.*
-import org.eclipse.lsp4j.ServerCapabilities
-import org.eclipse.lsp4j.TextDocumentSyncKind
 import playground.CompilationError
 import playground.CompilationFailed
 import playground.FileCompiler
 import playground.FileRunner
 import playground.OperationCompiler
 import playground.PreludeCompiler
 import playground.ServiceIndex
-import playground.TextDocumentManager
 import playground.language
 import playground.language.CodeLensProvider
 import playground.language.CommandProvider

modules/lsp/src/main/scala/playground/lsp/ModelLoader.scala modules/lsp-kernel/src/main/scala/playground/lsp/ModelLoader.scala

@@ -7,7 +7,6 @@ import cats.effect.std
 import fs2.compression.Compression
 import fs2.io.file.Files
 import fs2.io.net.Network
-import playground.TextDocumentManager
 
 /** Entrypoint to the language server. This is later adapted to the lsp4j model and used in Main to
   * launch. Anything workspace-related goes through this instance so this is what we use for some

modules/lsp/src/main/scala/playground/lsp/PluginResolver.scala modules/lsp-kernel/src/main/scala/playground/lsp/PluginResolver.scala

@@ -15,7 +15,6 @@ import org.http4s.headers.Authorization
 import playground.FileRunner
 import playground.OperationRunner
 import playground.ServiceIndex
-import playground.TextDocumentManager
 import playground.language.CommandResultReporter
 import playground.std.StdlibRuntime
 import smithy4s.aws.AwsEnvironment

modules/lsp/src/main/scala/playground/lsp/RunFileParams.scala modules/lsp-kernel/src/main/scala/playground/lsp/RunFileParams.scala

@@ -5,6 +5,7 @@ import org.eclipse.lsp4j.TextDocumentItem
 import org.eclipse.lsp4j.WorkspaceFolder
 import playground.language.Uri
 
+// todo: move to converters?
 object ToUriOps {
 
   implicit final class TextDocumentIdentifierToUriSyntax(