01: /*
02: * Copyright 2006 Google Inc.
03: *
04: * Licensed under the Apache License, Version 2.0 (the "License"); you may not
05: * use this file except in compliance with the License. You may obtain a copy of
06: * the License at
07: *
08: * http://www.apache.org/licenses/LICENSE-2.0
09: *
10: * Unless required by applicable law or agreed to in writing, software
11: * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12: * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13: * License for the specific language governing permissions and limitations under
14: * the License.
15: */
16: package com.google.gwt.dev;
17:
18: import com.google.gwt.dev.util.Util;
19:
20: /**
21: * Executable class provides help to users who run the jar by indicating
22: * the enclosed classes that are executable.
23: */
24: public class GWTMain {
25:
26: public static void main(String args[]) {
27: String aboutText = Util.getFileFromInstallPath("about.txt");
28: if (aboutText != null) {
29: System.err.println(aboutText);
30: } else {
31: System.err.println(About.GWT_VERSION);
32: }
33: System.err.println("Available main classes:");
34: System.err.println(addSpaces(GWTShell.class.getName(),
35: "runs the development shell"));
36: System.err.println(addSpaces(GWTCompiler.class.getName(),
37: "compiles a GWT module"));
38: }
39:
40: private static String addSpaces(String first, String second) {
41: StringBuffer sb = new StringBuffer();
42: sb.append(' ');
43: sb.append(first);
44: for (int i = sb.length(); i < 40; ++i) {
45: sb.append(' ');
46: }
47: sb.append(second);
48: return sb.toString();
49: }
50:
51: }
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