Write out argsFile (#85)

Co-authored-by: Jendrik Johannes <[email protected]>

Author: koppor

src/main/java/org/gradlex/javamodule/packaging/tasks/Jpackage.java

@@ -8,8 +8,10 @@
 import java.io.File;
 import java.io.IOException;
 import java.nio.file.Files;
+import java.nio.file.Path;
 import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
+import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 import java.util.stream.Collectors;
@@ -112,7 +114,7 @@ public abstract class Jpackage extends DefaultTask {
     public abstract DirectoryProperty getDestination();
 
     /**
-     * To copy resources before adding them. This allows ressource filtering via Gradle
+     * To copy resources before adding them. This allows resource filtering via Gradle
      * FileCollection and FileTree APIs.
      */
     @Internal
@@ -235,15 +237,15 @@ private void performAppImageStep(String jpackage, Directory resourcesDir) {
     }
 
     private void configureJPackageArguments(ExecSpec e, Directory resourcesDir) {
+        String argsFile = createArgsFile(getModulePath().getAsPath());
         e.args(
                 "--module",
                 getMainModule().get(),
                 "--resource-dir",
                 resourcesDir.getAsFile().getPath(),
                 "--app-version",
                 getVersion().get(),
-                "--module-path",
-                getModulePath().getAsPath(),
+                argsFile,
                 "--name",
                 getApplicationName().get());
         if (getApplicationDescription().isPresent()) {
@@ -269,6 +271,18 @@ private void configureJPackageArguments(ExecSpec e, Directory resourcesDir) {
         }
     }
 
+    private String createArgsFile(String modulePathAsPath) {
+        Path argsFile = getTemporaryDir().toPath().resolve("args.txt");
+        List<String> lines = new ArrayList<>(1);
+        lines.add("--module-path " + modulePathAsPath);
+        try {
+            Files.write(argsFile, lines);
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+        return "@" + argsFile.toString();
+    }
+
     private void generateChecksums() throws NoSuchAlgorithmException, IOException {
         File destination = getDestination().get().getAsFile();
         List<File> allFiles = Arrays.stream(requireNonNull(destination.listFiles()))