Resolve llvm path lazily to fix the konan file not found issue on the first time downloading Kotlin Native compiler.

(cherry picked from commit ddc941c)

Author: bennyhuo

ir-printer-gradle-plugin/src/main/java/com/bennyhuo/kotlin/ir/printer/gradle/IrPrinterGradlePlugin.kt

@@ -42,13 +42,16 @@ class IrPrinterGradlePlugin : KotlinCompilerPluginSupportPlugin {
         ) {
             val konanTempDir = kotlinCompilation.getOrConfigKonanTempDir()
             val konanConfig = KonanConfig(project)
-            val llvmDisPath = File(konanConfig.llvmHome, "bin/llvm-dis").absolutePath
+            // lazily resolve this path after Kotlin Native compiler setup.
+            val llvmDisPathLazy = lazy {
+                File(konanConfig.llvmHome, "bin/llvm-dis").absolutePath
+            }
 
             target.binaries.forEach { binary ->
                 val taskName = "disassemble${binary.name.capitalized()}${target.targetName.capitalized()}Bitcode"
                 project.tasks.register(taskName, LlvmDisTask::class.java) {
                     it.dependsOn(binary.linkTaskName)
-                    it.llvmDisPath.set(llvmDisPath)
+                    it.llvmDisPath.set(llvmDisPathLazy)
                     it.konanTempDir.set(konanTempDir)
                     it.outputPath.set(project.output(target, "llvm-ir"))
                 }

ir-printer-gradle-plugin/src/main/java/com/bennyhuo/kotlin/ir/printer/gradle/KonanConfig.kt

@@ -14,22 +14,28 @@ val Project.konanDataDir: String?
 val Project.nativeHome: String?
     get() = findProperty("kotlin.native.home")?.toString()
 
-class KonanConfig(val project: Project) {
-    val konanHome: File = (project.konanDataDir?.let { NativeCompilerDownloader(project).compilerDirectory }
+class KonanConfig(project: Project) {
+    val konanDataDir = project.konanDataDir
+    
+    val konanHome: File = (konanDataDir?.let { NativeCompilerDownloader(project).compilerDirectory }
         ?: project.nativeHome?.let { project.file(it) }
         ?: NativeCompilerDownloader(project).compilerDirectory).absoluteFile
 
-    val konanProperties = Properties().apply {
-        project.file("${konanHome}/konan/konan.properties").inputStream().use(::load)
+    val konanProperties by lazy {
+        Properties().apply {
+            File("${konanHome}/konan/konan.properties").inputStream().use(::load)
+        }
     }
 
-    val dependenciesRoot: File = DependencyDirectories.getDependenciesRoot(project.konanDataDir)
+    val dependenciesRoot = DependencyDirectories.getDependenciesRoot(konanDataDir)
 
-    val llvmHome: File = File(
-        dependenciesRoot,
-        konanProperties.getProperty("llvm.${HostManager.host.name}.dev")
-            ?: throw Exception("Cannot find llvm home for current target: ${HostManager.host}")
-    )
+    val llvmHome: File by lazy {
+        File(
+            dependenciesRoot,
+            konanProperties.getProperty("llvm.${HostManager.host.name}.dev")
+                ?: throw Exception("Cannot find llvm home for current target: ${HostManager.host}")
+        )
+    }
 }
 
 fun KotlinCompilation<*>.getOrConfigKonanTempDir(): String {

ir-printer-gradle-plugin/src/main/java/com/bennyhuo/kotlin/ir/printer/gradle/LlvmDisTask.kt

@@ -23,7 +23,7 @@ abstract class LlvmDisTask : DefaultTask() {
     }
 
     @get:Input
-    abstract val llvmDisPath: Property<String>
+    abstract val llvmDisPath: Property<Lazy<String>>
 
     @get:InputDirectory
     @get:PathSensitive(PathSensitivity.RELATIVE)
@@ -36,7 +36,7 @@ abstract class LlvmDisTask : DefaultTask() {
     fun run() {
         val inputDir = File(konanTempDir.get())
         inputDir.list()?.filter { it.endsWith(".bc") }?.forEach {
-            val result = executeCommand("${llvmDisPath.get()} $it", inputDir, logger)
+            val result = executeCommand("${llvmDisPath.get().value} $it", inputDir, logger)
             if(!result.isOk) {
                 throw GradleException("Failed to disassemble $it.")
             }