1/**
2 * Copyright 2007 Google Inc.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.tonicsystems.jarjar;
18
19import com.tonicsystems.jarjar.util.*;
20import java.io.*;
21import java.util.*;
22
23public class Main {
24
25  private static final String LINE_SEPARATOR = System.getProperty("line.separator");
26  private static final String HELP;
27
28  static {
29    try {
30      HELP = readIntoString(Main.class.getResourceAsStream("help.txt"));
31    } catch (IOException e) {
32      throw new RuntimeIOException(e);
33    }
34  }
35
36  private static String readIntoString(InputStream in) throws IOException {
37      StringBuilder sb = new StringBuilder();
38      BufferedReader r = new BufferedReader(new InputStreamReader(in, "UTF-8"));
39      String line = null;
40      while ((line = r.readLine()) != null)
41          sb.append(line).append(LINE_SEPARATOR);
42      return sb.toString();
43  }
44
45  private boolean verbose;
46  private List patterns;
47  private int level = DepHandler.LEVEL_CLASS;
48
49  public static void main(String[] args) throws Exception {
50    MainUtil.runMain(new Main(), args, "help");
51  }
52
53  public void help() {
54    System.err.print(HELP);
55  }
56
57  public void strings(String cp) throws IOException {
58    if (cp == null) {
59      throw new IllegalArgumentException("cp is required");
60    }
61    new StringDumper().run(cp, new PrintWriter(System.out));
62  }
63
64  // TODO: make level an enum
65  public void find(String level, String cp1, String cp2) throws IOException {
66    if (level == null || cp1 == null) {
67      throw new IllegalArgumentException("level and cp1 are required");
68    }
69    if (cp2 == null) {
70      cp2 = cp1;
71    }
72    int levelFlag;
73    if ("class".equals(level)) {
74      levelFlag = DepHandler.LEVEL_CLASS;
75    } else if ("jar".equals(level)) {
76      levelFlag = DepHandler.LEVEL_JAR;
77    } else {
78      throw new IllegalArgumentException("unknown level " + level);
79    }
80    PrintWriter w = new PrintWriter(System.out);
81    DepHandler handler = new TextDepHandler(w, levelFlag);
82    new DepFind().run(cp1, cp2, handler);
83    w.flush();
84  }
85
86  public void process(File rulesFile, File inJar, File outJar) throws IOException {
87    if (rulesFile == null || inJar == null || outJar == null) {
88      throw new IllegalArgumentException("rulesFile, inJar, and outJar are required");
89    }
90    List<PatternElement> rules = RulesFileParser.parse(rulesFile);
91    boolean verbose = Boolean.getBoolean("verbose");
92    boolean skipManifest = Boolean.getBoolean("skipManifest");
93    MainProcessor proc = new MainProcessor(rules, verbose, skipManifest);
94    StandaloneJarProcessor.run(inJar, outJar, proc);
95    proc.strip(outJar);
96  }
97}
98