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annotate cmdline/org/tmatesoft/hg/console/Log.java @ 599:55b7987c1796

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Do not instantiate intermediate arrays
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Fri, 03 May 2013 15:29:26 +0200
parents 5dcb4581c8ef
children 6526d8adbc0f
rev   line source
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1 /*
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2 * Copyright (c) 2010-2012 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.console;
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18
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19 import static org.tmatesoft.hg.console.Options.asSet;
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20
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21 import java.util.List;
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22
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23 import org.tmatesoft.hg.core.HgChangesetHandler;
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24 import org.tmatesoft.hg.core.HgFileRenameHandlerMixin;
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25 import org.tmatesoft.hg.core.HgFileRevision;
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26 import org.tmatesoft.hg.core.HgLogCommand;
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27 import org.tmatesoft.hg.repo.HgDataFile;
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28 import org.tmatesoft.hg.repo.HgRepository;
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29 import org.tmatesoft.hg.util.CancelSupport;
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30 import org.tmatesoft.hg.util.ProgressSupport;
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33 /**
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34 * @author Artem Tikhomirov
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35 * @author TMate Software Ltd.
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36 */
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37 public class Log {
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38
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39 // -agentlib:hprof=heap=sites,depth=10,etc might be handy to debug speed/memory issues
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40
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41 public static void main(String[] args) throws Exception {
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42 Options cmdLineOpts = Options.parse(args, asSet("--debug", "-v", "--verbose", "--hg4j-order-direct"));
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43 HgRepository hgRepo = cmdLineOpts.findRepository();
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44 if (hgRepo.isInvalid()) {
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45 System.err.printf("Can't find repository in: %s\n", hgRepo.getLocation());
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46 return;
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47 }
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48 //
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49 // in fact, neither cancel nor progress of any use, need them just to check comamnd API
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50 final CancelSupport noCancel = CancelSupport.Factory.get(null);
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51 final ProgressSupport noProgress = ProgressSupport.Factory.get(null);
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52 //
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53 final Dump dump = new Dump(hgRepo);
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54 dump.complete(cmdLineOpts.getBoolean("--debug"));
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55 dump.verbose(cmdLineOpts.getBoolean("-v", "--verbose"));
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56 final boolean reverseOrder = !cmdLineOpts.getBoolean("--hg4j-order-direct");
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57 dump.reversed(reverseOrder);
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58 HgLogCommand cmd = new HgLogCommand(hgRepo);
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59 for (String u : cmdLineOpts.getList("-u", "--user")) {
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60 cmd.user(u);
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61 }
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62 for (String b : cmdLineOpts.getList("-b", "--branches")) {
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63 cmd.branch(b);
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64 }
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65 int limit = cmdLineOpts.getSingleInt(-1, "-l", "--limit");
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66 if (limit != -1) {
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67 cmd.limit(limit);
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68 }
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69 cmd.set(noCancel).set(noProgress);
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70 List<String> files = cmdLineOpts.getList("");
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71 final long start = System.currentTimeMillis();
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72 if (files.isEmpty()) {
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73 if (limit == -1) {
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74 // no revisions and no limit
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75 cmd.execute(dump);
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76 } else {
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77 // in fact, external (to dump inspector) --limit processing yelds incorrect results when other args
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78 // e.g. -u or -b are used (i.e. with -u shall give <limit> csets with user, not check last <limit> csets for user
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79 int[] r = new int[] { 0, hgRepo.getChangelog().getRevisionCount() };
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80 if (fixRange(r, reverseOrder, limit) == 0) {
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81 System.out.println("No changes");
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82 return;
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83 }
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84 cmd.range(r[0], r[1]).execute(dump);
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85 }
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86 dump.done();
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87 } else {
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88 for (String fname : files) {
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89 HgDataFile f1 = hgRepo.getFileNode(fname);
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90 System.out.println("History of the file: " + f1.getPath());
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91 if (limit == -1) {
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92 cmd.file(f1.getPath(), true).execute(dump);
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93 } else {
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94 int[] r = new int[] { 0, f1.getRevisionCount() };
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95 if (fixRange(r, reverseOrder, limit) == 0) {
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96 System.out.println("No changes");
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97 continue;
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98 }
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99 cmd.range(r[0], r[1]).file(f1.getPath(), true).execute(dump);
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100 }
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101 dump.done();
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102 }
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103 }
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104 // cmd = null;
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105 System.out.println("Total time:" + (System.currentTimeMillis() - start));
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106 // Main.force_gc();
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107 }
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108
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109 private static int fixRange(int[] start_end, boolean reverse, int limit) {
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110 assert start_end.length == 2;
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111 if (limit < start_end[1]) {
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112 if (reverse) {
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113 // adjust left boundary of the range
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114 start_end[0] = start_end[1] - limit;
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115 } else {
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116 start_end[1] = limit; // adjust right boundary
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117 }
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118 }
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119 int rv = start_end[1] - start_end[0];
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120 start_end[1]--; // range needs index, not length
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121 return rv;
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122 }
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123
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124 private static final class Dump extends ChangesetDumpHandler implements HgChangesetHandler.WithCopyHistory {
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125 private final RenameDumpHandler renameHandlerDelegate;
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126
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127 public Dump(HgRepository hgRepo) {
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128 super(hgRepo);
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129 renameHandlerDelegate = new RenameDumpHandler();
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130 }
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131
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132 public void copy(HgFileRevision from, HgFileRevision to) {
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133 renameHandlerDelegate.copy(from, to);
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134 }
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135 }
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136
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137 static class RenameDumpHandler implements HgFileRenameHandlerMixin {
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138 public void copy(HgFileRevision from, HgFileRevision to) {
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139 System.out.printf("Got notified that %s(%s) was originally known as %s(%s)\n", to.getPath(), to.getRevision(), from.getPath(), from.getRevision());
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140 }
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141 }
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142 }