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annotate cmdline/org/tmatesoft/hg/console/Tags.java @ 655:bcbcc318f250

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Performance: reuse unzip output buffer
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Thu, 04 Jul 2013 18:36:38 +0200
parents 6437d261048a
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1 /*
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2 * Copyright (c) 2011-2012 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 java.util.Collections;
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20 import java.util.Comparator;
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21 import java.util.HashMap;
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22 import java.util.Map;
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23 import java.util.TreeSet;
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25 import org.tmatesoft.hg.repo.HgChangelog;
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26 import org.tmatesoft.hg.repo.HgRepository;
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27 import org.tmatesoft.hg.repo.HgTags;
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28 import org.tmatesoft.hg.repo.HgTags.TagInfo;
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30 /**
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31 *
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32 * @author Artem Tikhomirov
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33 * @author TMate Software Ltd.
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34 */
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35 public class Tags {
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37 public static void main(String[] args) throws Exception {
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38 Options cmdLineOpts = Options.parse(args, Collections.<String>emptySet());
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39 HgRepository hgRepo = cmdLineOpts.findRepository();
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40 if (hgRepo.isInvalid()) {
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41 System.err.printf("Can't find repository in: %s\n", hgRepo.getLocation());
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42 return;
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43 }
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44 HgTags tags = hgRepo.getTags();
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45 final HgChangelog clog = hgRepo.getChangelog();
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46 final Map<TagInfo, Integer> ti2index = new HashMap<TagInfo, Integer>();
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47 final TreeSet<TagInfo> sorted = new TreeSet<HgTags.TagInfo>(new Comparator<TagInfo>() {
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49 public int compare(TagInfo o1, TagInfo o2) {
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50 // reverse, from newer to older (bigger indexes first);
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51 // never ==, tags from same revision in any order, just next to each other
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52 int x1 = ti2index.get(o1);
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53 int x2 = ti2index.get(o2);
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54 return x1 < x2 ? 1 : -1;
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55 }
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56 });
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57 for (TagInfo ti : tags.getAllTags().values()) {
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58 int x = clog.getRevisionIndex(ti.revision()); // XXX in fact, performance hog. Need batch revisionIndex or another improvement
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59 ti2index.put(ti, x);
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60 sorted.add(ti);
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61 }
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62 for (TagInfo ti : sorted) {
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63 int x = ti2index.get(ti);
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64 System.out.printf("%-30s%8d:%s\n", ti.name(), x, ti.revision().shortNotation());
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65 }
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66 }
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67 }