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annotate test/org/tmatesoft/hg/test/ExecHelper.java @ 203:66fd2c73c56f

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Basic test for HgOutgoingCommand. Handle cases with no outgoing changes in RepositoryComparator
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Tue, 26 Apr 2011 15:52:33 +0200
parents a736f42ed75b
children b015f3918120
rev   line source
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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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a3a2e5deb320 Updated contact address to support@hg4j.com
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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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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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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 File dir;
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37 private int exitValue;
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39 public ExecHelper(OutputParser outParser, File workingDir) {
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40 parser = outParser;
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41 dir = workingDir;
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42 }
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44 public void run(String... cmd) throws IOException, InterruptedException {
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45 ProcessBuilder pb = null;
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46 if (System.getProperty("os.name").startsWith("Windows")) {
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47 StringTokenizer st = new StringTokenizer(System.getenv("PATH"), ";");
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48 while (st.hasMoreTokens()) {
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49 File pe = new File(st.nextToken());
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50 if (new File(pe, cmd[0] + ".exe").exists()) {
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51 break;
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52 }
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53 // PATHEXT controls precedence of .exe, .bat and .cmd files, ususlly .exe wins
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54 if (new File(pe, cmd[0] + ".bat").exists() || new File(pe, cmd[0] + ".cmd").exists()) {
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55 ArrayList<String> command = new ArrayList<String>();
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56 command.add("cmd.exe");
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57 command.add("/C");
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58 command.addAll(Arrays.asList(cmd));
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59 pb = new ProcessBuilder(command);
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60 break;
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61 }
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62 }
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63 }
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64 if (pb == null) {
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65 pb = new ProcessBuilder(cmd);
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66 }
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67 Process p = pb.directory(dir).redirectErrorStream(true).start();
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68 InputStreamReader stdOut = new InputStreamReader(p.getInputStream());
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69 LinkedList<CharBuffer> l = new LinkedList<CharBuffer>();
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70 int r = -1;
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71 CharBuffer b = null;
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72 do {
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73 if (b == null || b.remaining() < b.capacity() / 3) {
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74 b = CharBuffer.allocate(512);
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75 l.add(b);
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76 }
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77 r = stdOut.read(b);
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78 } while (r != -1);
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79 int total = 0;
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80 for (CharBuffer cb : l) {
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81 total += cb.position();
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82 cb.flip();
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83 }
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84 CharBuffer res = CharBuffer.allocate(total);
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85 for (CharBuffer cb : l) {
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86 res.put(cb);
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87 }
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88 res.flip();
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89 p.waitFor();
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90 exitValue = p.exitValue();
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91 parser.parse(res);
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92 }
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94 public int getExitValue() {
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95 return exitValue;
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96 }
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98 public void cwd(File wd) {
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99 dir = wd;
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100 }
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101 }