1 /*
   2  * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package com.sun.tools.jdeps;
  27 
  28 import java.io.*;
  29 
  30 /**
  31  *
  32  * Usage:
  33  *    jdeps [options] files ...
  34  * where options include:
  35  *    -p package-name   restrict analysis to classes in this package
  36  *                      (may be given multiple times)
  37  *    -e regex          restrict analysis to packages matching pattern
  38  *                      (-p and -e are exclusive)
  39  *    -v                show class-level dependencies
  40  *                      default: package-level dependencies
  41  *    -r --recursive    transitive dependencies analysis
  42  *    -classpath paths  Classpath to locate class files
  43  *    -all              process all class files in the given classpath
  44  */
  45 public class Main {
  46     public static void main(String... args) throws Exception {
  47         JdepsTask t = new JdepsTask();
  48         int rc = t.run(args);
  49         System.exit(rc);
  50     }
  51 
  52 
  53     /**
  54      * Entry point that does <i>not</i> call System.exit.
  55      *
  56      * @param args command line arguments
  57      * @param out output stream
  58      * @return an exit code. 0 means success, non-zero means an error occurred.
  59      */
  60     public static int run(String[] args, PrintWriter out) {
  61         JdepsTask t = new JdepsTask();
  62         t.setLog(out);
  63         return t.run(args);
  64     }
  65 }
  66