update readme, set long name for the ksp module

Author: yigit

README.md

@@ -113,6 +113,34 @@ However, if your project or any of its dependencies depend directly on compiler
 
 Because the internal APIs of the Kotlin compiler often change between versions, we can only support one `kotlin-compiler-embeddable` version at a time. 
 
+## Kotlin Symbol Processing API Support
+[Kotlin Symbol Processing (KSP)](https://goo.gle/ksp) is a new annotation processing pipeline that builds on top of the
+plugin architecture of the Kotlin Compiler, instead of delegating to javac as `kapt` does.
+
+**Note:** KSP is currently in active development and requires Kotlin 1.4 hence its support is kept separate from the
+main project until it becomes stable.
+
+To test KSP processors, you need to add a dependency to the ksp module:
+
+```Groovy
+dependencies {
+    implementation 'com.github.tschuchortdev:kotlin-compile-testing-ksp:1.2.9'
+}
+```
+
+This module adds a new function to the `KotlinCompilation` to specify KSP processors:
+
+```Kotlin
+class MySymbolProcessor : SymbolProcessor {
+    // implementation of the SymbolProcessor from the KSP API
+}
+
+val result = KotlinCompilation().apply {
+    sources = listOf(source)
+    symbolProcessor(MySymbolProcessor::class.java)
+}.compile()
+```
+
 ## Projects that use Kotlin-Compile-Testing
 
 - [square/moshi](https://github.com/square/moshi)

ksp/build.gradle

@@ -1,7 +1,9 @@
 apply plugin: 'kotlin'
-// TODO remove group and version
+apply plugin: 'maven'
+apply plugin: 'com.vanniktech.maven.publish'
+
 group 'com.github.tschuchortdev'
-version '1.2.8'
+
 ext.ksp_version='1.4-M1-dev-experimental-20200610'
 
 repositories {
@@ -27,4 +29,4 @@ compileKotlin {
 }
 compileTestKotlin {
     kotlinOptions.jvmTarget = "1.8"
-}
+}

ksp/src/main/kotlin/com/tschuchort/compiletesting/Ksp.kt

@@ -9,7 +9,6 @@ import org.jetbrains.kotlin.ksp.processing.SymbolProcessor
 
 private const val KSP_PLUGIN_ID = "org.jetbrains.kotlin.ksp"
 
-// TODO can we add support for instances?
 fun KotlinCompilation.symbolProcessor(
     vararg processors: Class<out SymbolProcessor>
 ) {

ksp/src/test/kotlin/com/tschuchort/compiletesting/KspTestUtil.kt

@@ -1,3 +1,3 @@
 rootProject.name = 'kotlin-compile-testing'
-include("ksp")
-
+include(":kotlin-compile-testing-ksp")
+project(":kotlin-compile-testing-ksp").setProjectDir(new File("ksp"))