annotate src/org/tmatesoft/hg/repo/HgInternals.java @ 258:e5776067b3b8

Reduce number of objects instantiated on revlog read
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Tue, 16 Aug 2011 22:08:15 +0200
parents 6e1373b54e9b
children 7af843ecc378
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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15 * contact TMate Software at support@hg4j.com
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16 */
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17 package org.tmatesoft.hg.repo;
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18
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19 import static org.tmatesoft.hg.repo.HgRepository.*;
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20
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21 import java.io.File;
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22 import java.net.InetAddress;
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23 import java.net.UnknownHostException;
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24
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25 import org.tmatesoft.hg.internal.ConfigFile;
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26 import org.tmatesoft.hg.internal.Experimental;
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27 import org.tmatesoft.hg.internal.RelativePathRewrite;
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28 import org.tmatesoft.hg.util.FileIterator;
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29 import org.tmatesoft.hg.util.FileWalker;
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30 import org.tmatesoft.hg.util.Path;
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31 import org.tmatesoft.hg.util.PathRewrite;
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32
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34 /**
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35 * DO NOT USE THIS CLASS, INTENDED FOR TESTING PURPOSES.
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36 *
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37 * This class gives access to repository internals, and holds methods that I'm not confident have to be widely accessible
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38 * Debug helper, to access otherwise restricted (package-local) methods
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39 *
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40 * @author Artem Tikhomirov
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41 * @author TMate Software Ltd.
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42 */
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43 @Experimental(reason="Perhaps, shall split methods with debug purpose from methods that are experimental API")
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44 public class HgInternals {
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46 private final HgRepository repo;
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47
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48 public HgInternals(HgRepository hgRepo) {
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49 repo = hgRepo;
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50 }
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52 public void dumpDirstate() {
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53 repo.loadDirstate().dump();
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54 }
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56 public boolean[] checkIgnored(String... toCheck) {
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57 HgIgnore ignore = repo.getIgnore();
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58 boolean[] rv = new boolean[toCheck.length];
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59 for (int i = 0; i < toCheck.length; i++) {
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60 rv[i] = ignore.isIgnored(Path.create(toCheck[i]));
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61 }
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62 return rv;
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63 }
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65 public File getRepositoryDir() {
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66 return repo.getRepositoryRoot();
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67 }
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69 public ConfigFile getRepoConfig() {
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70 return repo.getConfigFile();
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71 }
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73 // in fact, need a setter for this anyway, shall move to internal.Internals perhaps?
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74 public String getNextCommitUsername() {
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75 String hgUser = System.getenv("HGUSER");
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76 if (hgUser != null && hgUser.trim().length() > 0) {
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77 return hgUser.trim();
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78 }
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79 String configValue = getRepoConfig().getString("ui", "username", null);
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80 if (configValue != null) {
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81 return configValue;
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82 }
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83 String email = System.getenv("EMAIL");
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84 if (email != null && email.trim().length() > 0) {
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85 return email;
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86 }
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87 String username = System.getProperty("user.name");
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88 try {
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89 String hostname = InetAddress.getLocalHost().getHostName();
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90 return username + '@' + hostname;
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91 } catch (UnknownHostException ex) {
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92 return username;
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93 }
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94 }
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96 @Experimental(reason="Don't want to expose io.File from HgRepository; need to create FileIterator for working dir. Need a place to keep that code")
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97 /*package-local*/ FileIterator createWorkingDirWalker(Path.Matcher workindDirScope) {
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98 File repoRoot = repo.getWorkingDir();
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99 Path.Source pathSrc = new Path.SimpleSource(new PathRewrite.Composite(new RelativePathRewrite(repoRoot), repo.getToRepoPathHelper()));
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100 // Impl note: simple source is enough as files in the working dir are all unique
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101 // even if they might get reused (i.e. after FileIterator#reset() and walking once again),
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102 // path caching is better to be done in the code which knows that path are being reused
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103 return new FileWalker(repoRoot, pathSrc, workindDirScope);
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104 }
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105
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107 // Convenient check of local revision number for validity (not all negative values are wrong as long as we use negative constants)
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108 public static boolean wrongLocalRevision(int rev) {
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109 return rev < 0 && rev != TIP && rev != WORKING_COPY && rev != BAD_REVISION;
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110 }
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111 }