Update docs and tests for groovy and scala plugins (#1831)

* Remove tests for groovy and scala plugins

* Update `docs/groovy-and-scala-plugins/README.md`

* Update src/functionalTest/kotlin/com/github/jengelman/gradle/plugins/shadow/BasePluginTest.kt

Co-authored-by: Copilot <[email protected]>

* Update desc

---------

Co-authored-by: Copilot <[email protected]>

Author: Goooler

docs/groovy-and-scala-plugins/README.md

@@ -12,11 +12,6 @@ For Groovy:
       id("com.gradleup.shadow")
     }
 
-    dependencies {
-      // If you don't want the Groovy standard library to be shadowed, please replace `implementation` with `api`.
-      implementation(localGroovy())
-    }
-
     tasks.shadowJar {
       manifest {
         // Optionally, set the main class for the shadowed JAR.
@@ -33,11 +28,6 @@ For Groovy:
       id 'com.gradleup.shadow'
     }
 
-    dependencies {
-      // If you don't want the Groovy standard library to be shadowed, please replace `implementation` with `api`.
-      implementation localGroovy()
-    }
-
     tasks.named('shadowJar', com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar) {
       manifest {
         // Optionally, set the main class for the shadowed JAR.
@@ -56,11 +46,6 @@ For Scala:
       id("com.gradleup.shadow")
     }
 
-    dependencies {
-      // If you don't want the Scala standard library to be shadowed, please replace `implementation` with `api`.
-      implementation("org.scala-lang:scala-library:2.13.16")
-    }
-
     tasks.shadowJar {
       manifest {
         // Optionally, set the main class for the shadowed JAR.
@@ -77,15 +62,12 @@ For Scala:
       id 'com.gradleup.shadow'
     }
 
-    dependencies {
-      // If you don't want the Scala standard library to be shadowed, please replace `implementation` with `api`.
-      implementation 'org.scala-lang:scala-library:2.13.16'
-    }
-
     tasks.named('shadowJar', com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar) {
       manifest {
         // Optionally, set the main class for the shadowed JAR.
         attributes 'Main-Class': 'com.example.Main'
       }
     }
     ```
+
+You can customize the other configurations of the `shadowJar` task as needed, just like with Java projects.

src/functionalTest/kotlin/com/github/jengelman/gradle/plugins/shadow/BasePluginTest.kt

@@ -226,9 +226,7 @@ abstract class BasePluginTest {
     jvmLang: JvmLang = JvmLang.Java,
     content: () -> String = {
       when (jvmLang) {
-        JvmLang.Groovy,
-        JvmLang.Java,
-        -> {
+        JvmLang.Java -> {
           val imports = if (withImports) "import junit.framework.Test;" else ""
           val classRef = if (withImports) "\"Refs: \" + Test.class.getName()" else "\"Refs: null\""
           """
@@ -259,22 +257,6 @@ abstract class BasePluginTest {
             }
           """.trimIndent()
         }
-        JvmLang.Scala -> {
-          val imports = if (withImports) "import junit.framework.Test" else ""
-          val classRef = if (withImports) "\"Refs: \" + classOf[Test].getName" else "\"Refs: null\""
-          """
-            package $packageName
-            $imports
-            object $className {
-              def main(args: Array[String]): Unit = {
-                if (args.isEmpty) throw new IllegalArgumentException("No arguments provided.")
-                val content = s"Hello, World! (%s) from $className".format(args: _*)
-                println(content)
-                println($classRef)
-              }
-            }
-          """.trimIndent()
-        }
       }
     },
   ): String {

src/functionalTest/kotlin/com/github/jengelman/gradle/plugins/shadow/GroovyPluginTest.kt

@@ -3,10 +3,8 @@ package com.github.jengelman.gradle.plugins.shadow.util
 enum class JvmLang(
   val suffix: String,
 ) {
-  Groovy("groovy"),
   Java("java"),
   Kotlin("kt"),
-  Scala("scala"),
   ;
 
   override fun toString(): String = name.lowercase()