restructure transport modules

* rename ktor-websocket to ktor-websocket-internal and make it an implementation dependency (not exposed)
* move all transports under `rsocket-transports` folder
* drop empty modules
* implement small DSL for including projects

Author: whyoleg

build-settings/src/main/kotlin/rsocketsettings/ProjectsScope.kt

@@ -0,0 +1,47 @@
+/*
+ * Copyright 2015-2024 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package rsocketsettings
+
+import org.gradle.api.initialization.*
+
+fun Settings.projects(block: ProjectsScope.() -> Unit) {
+    ProjectsScope(settings, emptyList(), emptyList()).apply(block)
+}
+
+class ProjectsScope(
+    private val settings: Settings,
+    private val pathParts: List<String>,
+    private val prefixParts: List<String>,
+) {
+
+    fun module(name: String) {
+        val moduleName = (prefixParts + name).joinToString("-")
+        val modulePath = (pathParts + name).joinToString("/")
+
+        settings.include(moduleName)
+        settings.project(":$moduleName").projectDir = settings.rootDir.resolve(modulePath)
+    }
+
+    fun module(name: String, prefix: String = name, nested: ProjectsScope.() -> Unit = {}) {
+        module(name)
+        folder(name, prefix, nested)
+    }
+
+    fun folder(name: String, prefix: String = name, block: ProjectsScope.() -> Unit) {
+        ProjectsScope(settings, pathParts + name, prefixParts + prefix).apply(block)
+    }
+}

rsocket-ktor/api/rsocket-ktor.api

@@ -29,7 +29,8 @@ kotlin {
 
     sourceSets {
         commonMain.dependencies {
-            api(projects.rsocketKtor)
+            implementation(projects.rsocketTransportKtorWebsocketInternal)
+            api(projects.rsocketCore)
             api(libs.ktor.client.websockets)
         }
     }

rsocket-ktor/build.gradle.kts

@@ -23,7 +23,7 @@ import io.ktor.client.request.*
 import io.ktor.http.*
 import io.rsocket.kotlin.*
 import io.rsocket.kotlin.transport.*
-import io.rsocket.kotlin.transport.ktor.websocket.*
+import io.rsocket.kotlin.transport.ktor.websocket.internal.*
 import kotlin.coroutines.*
 
 public suspend fun HttpClient.rSocket(

rsocket-ktor/rsocket-ktor-client/api/rsocket-ktor-client.api renamed to rsocket-ktor/client/api/rsocket-ktor-client.api

@@ -28,11 +28,12 @@ kotlin {
 
     sourceSets {
         commonMain.dependencies {
-            api(projects.rsocketKtor)
+            implementation(projects.rsocketTransportKtorWebsocketInternal)
+            api(projects.rsocketCore)
             api(libs.ktor.server.websockets)
         }
         commonTest.dependencies {
-            implementation(projects.rsocketKtor.rsocketKtorClient)
+            implementation(projects.rsocketKtorClient)
             implementation(projects.rsocketTransportTests) //port provider
             implementation(libs.ktor.client.cio)
             implementation(libs.ktor.server.cio)