Mercurial > hg4j
annotate test/org/tmatesoft/hg/test/ExecHelper.java @ 132:6778075cd2b4
Fix reference to class name in the comment
author | Artem Tikhomirov <tikhomirov.artem@gmail.com> |
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date | Wed, 16 Feb 2011 20:56:43 +0100 |
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1 /* |
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2 * Copyright (c) 2011 TMate Software Ltd |
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3 * |
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4 * This program is free software; you can redistribute it and/or modify |
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5 * it under the terms of the GNU General Public License as published by |
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6 * the Free Software Foundation; version 2 of the License. |
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7 * |
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8 * This program is distributed in the hope that it will be useful, |
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9 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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11 * GNU General Public License for more details. |
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12 * |
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13 * For information on how to redistribute this software under |
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14 * the terms of a license other than GNU General Public License |
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15 * contact TMate Software at support@hg4j.com |
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16 */ |
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17 package org.tmatesoft.hg.test; |
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18 |
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19 import java.io.File; |
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20 import java.io.IOException; |
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21 import java.io.InputStreamReader; |
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22 import java.nio.CharBuffer; |
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23 import java.util.ArrayList; |
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24 import java.util.Arrays; |
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25 import java.util.LinkedList; |
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26 import java.util.StringTokenizer; |
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27 |
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28 /** |
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29 * |
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30 * @author Artem Tikhomirov |
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31 * @author TMate Software Ltd. |
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32 */ |
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33 public class ExecHelper { |
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34 |
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35 private final OutputParser parser; |
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36 private final File dir; |
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37 |
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38 public ExecHelper(OutputParser outParser, File workingDir) { |
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39 parser = outParser; |
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40 dir = workingDir; |
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41 } |
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42 |
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43 public void run(String... cmd) throws IOException, InterruptedException { |
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44 ProcessBuilder pb = null; |
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45 if (System.getProperty("os.name").startsWith("Windows")) { |
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46 StringTokenizer st = new StringTokenizer(System.getenv("PATH"), ";"); |
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47 while (st.hasMoreTokens()) { |
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48 File pe = new File(st.nextToken()); |
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49 if (new File(pe, cmd[0] + ".exe").exists()) { |
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50 break; |
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51 } |
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52 // PATHEXT controls precedence of .exe, .bat and .cmd files, ususlly .exe wins |
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53 if (new File(pe, cmd[0] + ".bat").exists() || new File(pe, cmd[0] + ".cmd").exists()) { |
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54 ArrayList<String> command = new ArrayList<String>(); |
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55 command.add("cmd.exe"); |
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56 command.add("/C"); |
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57 command.addAll(Arrays.asList(cmd)); |
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58 pb = new ProcessBuilder(command); |
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59 break; |
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60 } |
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61 } |
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62 } |
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63 if (pb == null) { |
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64 pb = new ProcessBuilder(cmd); |
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65 } |
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66 Process p = pb.directory(dir).redirectErrorStream(true).start(); |
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67 InputStreamReader stdOut = new InputStreamReader(p.getInputStream()); |
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68 LinkedList<CharBuffer> l = new LinkedList<CharBuffer>(); |
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69 int r = -1; |
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70 CharBuffer b = null; |
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71 do { |
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72 if (b == null || b.remaining() < b.capacity() / 3) { |
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73 b = CharBuffer.allocate(512); |
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74 l.add(b); |
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75 } |
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76 r = stdOut.read(b); |
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77 } while (r != -1); |
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78 int total = 0; |
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79 for (CharBuffer cb : l) { |
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80 total += cb.position(); |
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81 cb.flip(); |
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82 } |
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83 CharBuffer res = CharBuffer.allocate(total); |
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84 for (CharBuffer cb : l) { |
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85 res.put(cb); |
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86 } |
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87 res.flip(); |
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88 p.waitFor(); |
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89 parser.parse(res); |
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90 } |
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91 } |