Support standard doclet flags, so that this is usable under Gradle (#84)

Fixes #83

jsinterop-ts-defs-doclet/src/main/java/com/vertispan/tsdefs/doclet/TsDoclet.java

@@ -53,7 +53,7 @@ public class TsDoclet implements Doclet, HasProcessorEnv {
   private Messager messager;
   private DocletLogWrapper logWrapper;
 
-  public static final String TSOUT_DIR = "-tsoutput";
+  public static final String TSOUT_DIR = "-d";
 
   private String outputDir;
 
@@ -76,47 +76,22 @@ public SourceVersion getSupportedSourceVersion() {
 
   @Override
   public Set<? extends Option> getSupportedOptions() {
-    Option[] options = {
-      new Option() {
-
-        @Override
-        public int getArgumentCount() {
-          return 1;
-        }
-
-        @Override
-        public String getDescription() {
-          return "Type script generated definition file location";
-        }
-
-        @Override
-        public Kind getKind() {
-          return Kind.STANDARD;
-        }
-
-        @Override
-        public List<String> getNames() {
-          return List.of(TSOUT_DIR);
-        }
-
-        @Override
-        public String getParameters() {
-          return "file";
-        }
-
-        @Override
-        public boolean process(String opt, List<String> arguments) {
-          if (arguments.isEmpty()) {
-            reporter.print(
-                Diagnostic.Kind.ERROR, "You must specify an output filepath with " + TSOUT_DIR);
-            return false;
-          }
-          outputDir = arguments.get(0);
-          return true;
-        }
-      }
-    };
-    return new HashSet<>(Arrays.asList(options));
+    return Set.of(
+        TsDocletOption.of(
+            "-d",
+            "Type script generated definition file location",
+            (opt, arguments) -> {
+              if (arguments.isEmpty()) {
+                reporter.print(
+                    Diagnostic.Kind.ERROR, "You must specify an output filepath with " + TSOUT_DIR);
+                return false;
+              }
+              outputDir = arguments.get(0);
+              return true;
+            }),
+        TsDocletOption.ignored("-doctitle"),
+        TsDocletOption.ignored("-windowtitle"),
+        TsDocletOption.ignored("-notimestamp"));
   }
 
   @Override

jsinterop-ts-defs-doclet/src/main/java/com/vertispan/tsdefs/doclet/TsDocletOption.java

@@ -0,0 +1,62 @@
+/*
+ * Copyright © 2023 Vertispan
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.vertispan.tsdefs.doclet;
+
+import java.util.List;
+import java.util.function.BiPredicate;
+import jdk.javadoc.doclet.Doclet;
+
+public abstract class TsDocletOption implements Doclet.Option {
+  public static TsDocletOption of(
+      String name, String description, BiPredicate<String, List<String>> process) {
+    return new TsDocletOption() {
+
+      @Override
+      public String getDescription() {
+        return description;
+      }
+
+      @Override
+      public List<String> getNames() {
+        return List.of(name);
+      }
+
+      @Override
+      public boolean process(String s, List<String> list) {
+        return process.test(s, list);
+      }
+    };
+  }
+
+  public static TsDocletOption ignored(String name) {
+    return of(name, "ignored, only supported to appease Gradle", (opt, args) -> true);
+  }
+
+  @Override
+  public int getArgumentCount() {
+    return 1;
+  }
+
+  @Override
+  public Kind getKind() {
+    return Kind.STANDARD;
+  }
+
+  @Override
+  public String getParameters() {
+    return "value";
+  }
+}