add script to build

Author: luigi

codegen/smithy-kotlin-codegen/src/main/kotlin/software/amazon/smithy/kotlin/codegen/CodegenVisitor.kt

@@ -21,6 +21,7 @@ import software.amazon.smithy.kotlin.codegen.rendering.*
 import software.amazon.smithy.kotlin.codegen.rendering.protocol.ApplicationProtocol
 import software.amazon.smithy.kotlin.codegen.rendering.protocol.ProtocolGenerator
 import software.amazon.smithy.kotlin.codegen.service.AbstractStubGenerator
+import software.amazon.smithy.kotlin.codegen.service.buildScript
 import software.amazon.smithy.model.Model
 import software.amazon.smithy.model.knowledge.ServiceIndex
 import software.amazon.smithy.model.neighbor.Walker
@@ -156,6 +157,8 @@ class CodegenVisitor(context: PluginContext) : ShapeVisitor.Default<Unit>() {
         if (generateServiceProject) {
             val serviceStubGenerator: AbstractStubGenerator = settings.serviceStub.framework.getServiceFrameworkGenerator(baseGenerationContext, writers, fileManifest)
             serviceStubGenerator.render()
+
+            buildScript(fileManifest)
         }
 
         writers.finalize()

codegen/smithy-kotlin-codegen/src/main/kotlin/software/amazon/smithy/kotlin/codegen/service/BuildScriptGenerator.kt

@@ -0,0 +1,46 @@
+package software.amazon.smithy.kotlin.codegen.service
+
+import software.amazon.smithy.build.FileManifest
+
+internal fun buildScript(fileManifest: FileManifest) {
+    val bashScript = """
+        #!/bin/bash
+        
+        if [ -d "build" ]; then
+            read -p "The 'build' directory already exists. Removing it will delete previous build artifacts. Continue? (y/n): " choice
+            case "${'$'}choice" in
+                y|Y )
+                    gradle clean
+                    echo "Previous build directory removed."
+                    ;;
+                * )
+                    echo "Aborted."
+                    exit 1
+                    ;;
+            esac
+        fi
+
+        gradle build
+
+    """.trimIndent()
+    fileManifest.writeFile("build.sh", bashScript)
+
+    val batchScript = """
+        @echo off
+        if exist build (
+            set /p choice="The 'build' directory already exists. Removing it will delete previous build artifacts. Continue? (y/n): "
+            if /i "%choice%"=="y" (
+                gradle clean
+                echo Previous build directory removed.
+            ) else (
+                echo Aborted.
+                exit /b 1
+            )
+        )
+
+        gradle build
+
+    """.trimIndent()
+
+    fileManifest.writeFile("build.bat", batchScript)
+}