Mercurial > jhg
annotate src/org/tmatesoft/hg/repo/HgStatusCollector.java @ 135:3959bffb14e9
explicit op name instead math op to get last rev number
| author | Artem Tikhomirov <tikhomirov.artem@gmail.com> | 
|---|---|
| date | Wed, 16 Feb 2011 22:00:39 +0100 | 
| parents | 4a948ec83980 | 
| children | 8248aae33f7d | 
| rev | line source | 
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changeset | 1 /* | 
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changeset | 2 * Copyright (c) 2011 TMate Software Ltd | 
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changeset | 3 * | 
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changeset | 4 * This program is free software; you can redistribute it and/or modify | 
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changeset | 5 * it under the terms of the GNU General Public License as published by | 
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changeset | 6 * the Free Software Foundation; version 2 of the License. | 
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changeset | 7 * | 
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changeset | 8 * This program is distributed in the hope that it will be useful, | 
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changeset | 9 * but WITHOUT ANY WARRANTY; without even the implied warranty of | 
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changeset | 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | 
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changeset | 11 * GNU General Public License for more details. | 
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changeset | 12 * | 
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changeset | 13 * For information on how to redistribute this software under | 
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changeset | 14 * the terms of a license other than GNU General Public License | 
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changeset | 15 * contact TMate Software at support@hg4j.com | 
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changeset | 16 */ | 
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changeset | 17 package org.tmatesoft.hg.repo; | 
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changeset | 18 | 
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changeset | 19 import static org.tmatesoft.hg.repo.HgRepository.BAD_REVISION; | 
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changeset | 20 import static org.tmatesoft.hg.repo.HgRepository.TIP; | 
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changeset | 21 | 
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changeset | 22 import java.util.Collection; | 
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changeset | 23 import java.util.Collections; | 
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changeset | 24 import java.util.LinkedHashMap; | 
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changeset | 25 import java.util.LinkedList; | 
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changeset | 26 import java.util.List; | 
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changeset | 27 import java.util.Map; | 
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changeset | 28 import java.util.TreeMap; | 
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changeset | 29 import java.util.TreeSet; | 
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changeset | 30 | 
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changeset | 31 import org.tmatesoft.hg.core.Nodeid; | 
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changeset | 32 import org.tmatesoft.hg.util.Path; | 
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changeset | 33 import org.tmatesoft.hg.util.PathPool; | 
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changeset | 34 import org.tmatesoft.hg.util.PathRewrite; | 
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changeset | 35 | 
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changeset | 36 | 
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changeset | 37 /** | 
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changeset | 38 * RevisionWalker? | 
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changeset | 39 * | 
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changeset | 40 * @author Artem Tikhomirov | 
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changeset | 41 * @author TMate Software Ltd. | 
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changeset | 42 */ | 
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changeset | 43 public class HgStatusCollector { | 
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changeset | 44 | 
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changeset | 45 private final HgRepository repo; | 
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changeset | 46 private final Map<Integer, ManifestRevisionInspector> cache; // sparse array, in fact | 
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changeset | 47 private PathPool pathPool; | 
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changeset | 48 | 
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changeset | 49 public HgStatusCollector(HgRepository hgRepo) { | 
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changeset | 50 this.repo = hgRepo; | 
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changeset | 51 cache = new TreeMap<Integer, ManifestRevisionInspector>(); | 
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changeset | 52 ManifestRevisionInspector emptyFakeState = new ManifestRevisionInspector(); | 
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changeset | 53 emptyFakeState.begin(-1, null); | 
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changeset | 54 emptyFakeState.end(-1); // FIXME HgRepo.TIP == -1 as well, need to distinguish fake "prior to first" revision from "the very last" | 
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changeset | 55 cache.put(-1, emptyFakeState); | 
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changeset | 56 } | 
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changeset | 57 | 
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changeset | 58 public HgRepository getRepo() { | 
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changeset | 59 return repo; | 
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changeset | 60 } | 
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changeset | 61 | 
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changeset | 62 private ManifestRevisionInspector get(int rev) { | 
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changeset | 63 ManifestRevisionInspector i = cache.get(rev); | 
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changeset | 64 if (i == null) { | 
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changeset | 65 i = new ManifestRevisionInspector(); | 
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changeset | 66 cache.put(rev, i); | 
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changeset | 67 repo.getManifest().walk(rev, rev, i); | 
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changeset | 68 } | 
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changeset | 69 return i; | 
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changeset | 70 } | 
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changeset | 71 | 
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changeset | 72 /*package-local*/ ManifestRevisionInspector raw(int rev) { | 
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changeset | 73 return get(rev); | 
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changeset | 74 } | 
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changeset | 75 /*package-local*/ PathPool getPathPool() { | 
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changeset | 76 if (pathPool == null) { | 
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changeset | 77 pathPool = new PathPool(new PathRewrite.Empty()); | 
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changeset | 78 } | 
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changeset | 79 return pathPool; | 
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changeset | 80 } | 
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changeset | 81 | 
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changeset | 82 public void setPathPool(PathPool pathPool) { | 
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changeset | 83 this.pathPool = pathPool; | 
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changeset | 84 } | 
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changeset | 85 | 
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changeset | 86 | 
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changeset | 87 // hg status --change <rev> | 
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changeset | 88 public void change(int rev, HgStatusInspector inspector) { | 
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changeset | 89 int[] parents = new int[2]; | 
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changeset | 90 repo.getChangelog().parents(rev, parents, null, null); | 
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changeset | 91 walk(parents[0], rev, inspector); | 
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changeset | 92 } | 
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changeset | 93 | 
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changeset | 94 // I assume revision numbers are the same for changelog and manifest - here | 
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changeset | 95 // user would like to pass changelog revision numbers, and I use them directly to walk manifest. | 
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changeset | 96 // if this assumption is wrong, fix this (lookup manifest revisions from changeset). | 
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changeset | 97 public void walk(int rev1, int rev2, HgStatusInspector inspector) { | 
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changeset | 98 if (rev1 == rev2) { | 
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changeset | 99 throw new IllegalArgumentException(); | 
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changeset | 100 } | 
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changeset | 101 if (inspector == null) { | 
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changeset | 102 throw new IllegalArgumentException(); | 
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changeset | 103 } | 
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changeset | 104 if (inspector instanceof Record) { | 
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changeset | 105 ((Record) inspector).init(rev1, rev2, this); | 
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changeset | 106 } | 
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changeset | 107 if (rev1 == TIP) { | 
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changeset | 108 rev1 = repo.getManifest().getLastRevision(); | 
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changeset | 109 } | 
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changeset | 110 if (rev2 == TIP) { | 
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changeset | 111 rev2 = repo.getManifest().getLastRevision(); | 
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changeset | 112 } | 
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changeset | 113 // in fact, rev1 and rev2 are often next (or close) to each other, | 
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changeset | 114 // thus, we can optimize Manifest reads here (manifest.walk(rev1, rev2)) | 
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changeset | 115 ManifestRevisionInspector r1, r2 ; | 
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changeset | 116 if (!cache.containsKey(rev1) && !cache.containsKey(rev2) && Math.abs(rev1 - rev2) < 5 /*subjective equivalent of 'close enough'*/) { | 
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changeset | 117 int minRev = rev1 < rev2 ? rev1 : rev2; | 
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changeset | 118 int maxRev = minRev == rev1 ? rev2 : rev1; | 
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changeset | 119 if (minRev > 0) { | 
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changeset | 120 minRev--; // expand range a bit | 
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changeset | 121 // XXX perhaps, if revlog.baseRevision is cheap, shall expand minRev up to baseRevision | 
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changeset | 122 // which gonna be read anyway | 
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changeset | 123 } | 
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changeset | 124 | 
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changeset | 125 repo.getManifest().walk(minRev, maxRev, new HgManifest.Inspector() { | 
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changeset | 126 private ManifestRevisionInspector delegate; | 
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changeset | 127 | 
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changeset | 128 public boolean begin(int revision, Nodeid nid) { | 
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changeset | 129 cache.put(revision, delegate = new ManifestRevisionInspector()); | 
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changeset | 130 delegate.begin(revision, nid); | 
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changeset | 131 return true; | 
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changeset | 132 } | 
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changeset | 133 | 
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changeset | 134 public boolean next(Nodeid nid, String fname, String flags) { | 
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changeset | 135 delegate.next(nid, fname, flags); | 
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changeset | 136 return true; | 
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changeset | 137 } | 
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changeset | 138 | 
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changeset | 139 public boolean end(int revision) { | 
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changeset | 140 delegate.end(revision); | 
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changeset | 141 delegate = null; | 
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changeset | 142 return true; | 
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changeset | 143 } | 
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changeset | 144 }); | 
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changeset | 145 } | 
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changeset | 146 r1 = get(rev1); | 
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changeset | 147 r2 = get(rev2); | 
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changeset | 148 | 
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changeset | 149 PathPool pp = getPathPool(); | 
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changeset | 150 | 
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changeset | 151 TreeSet<String> r1Files = new TreeSet<String>(r1.files()); | 
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changeset | 152 for (String fname : r2.files()) { | 
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changeset | 153 if (r1Files.remove(fname)) { | 
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changeset | 154 Nodeid nidR1 = r1.nodeid(fname); | 
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changeset | 155 Nodeid nidR2 = r2.nodeid(fname); | 
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changeset | 156 String flagsR1 = r1.flags(fname); | 
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changeset | 157 String flagsR2 = r2.flags(fname); | 
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changeset | 158 if (nidR1.equals(nidR2) && ((flagsR2 == null && flagsR1 == null) || flagsR2.equals(flagsR1))) { | 
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changeset | 159 inspector.clean(pp.path(fname)); | 
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changeset | 160 } else { | 
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changeset | 161 inspector.modified(pp.path(fname)); | 
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changeset | 162 } | 
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changeset | 163 } else { | 
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changeset | 164 String copyOrigin = getOriginIfCopy(repo, fname, r1Files, rev1); | 
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changeset | 165 if (copyOrigin != null) { | 
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changeset | 166 inspector.copied(pp.path(copyOrigin), pp.path(fname)); | 
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changeset | 167 } else { | 
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changeset | 168 inspector.added(pp.path(fname)); | 
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changeset | 169 } | 
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changeset | 170 } | 
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changeset | 171 } | 
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changeset | 172 for (String left : r1Files) { | 
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changeset | 173 inspector.removed(pp.path(left)); | 
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changeset | 174 } | 
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changeset | 175 } | 
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changeset | 176 | 
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changeset | 177 public Record status(int rev1, int rev2) { | 
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changeset | 178 Record rv = new Record(); | 
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changeset | 179 walk(rev1, rev2, rv); | 
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changeset | 180 return rv; | 
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changeset | 181 } | 
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changeset | 182 | 
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changeset | 183 /*package-local*/static String getOriginIfCopy(HgRepository hgRepo, String fname, Collection<String> originals, int originalChangelogRevision) { | 
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changeset | 184 HgDataFile df = hgRepo.getFileNode(fname); | 
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changeset | 185 while (df.isCopy()) { | 
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changeset | 186 Path original = df.getCopySourceName(); | 
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changeset | 187 if (originals.contains(original.toString())) { | 
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changeset | 188 df = hgRepo.getFileNode(original); | 
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changeset | 189 int changelogRevision = df.getChangesetLocalRevision(0); | 
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changeset | 190 if (changelogRevision <= originalChangelogRevision) { | 
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changeset | 191 // copy/rename source was known prior to rev1 | 
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changeset | 192 // (both r1Files.contains is true and original was created earlier than rev1) | 
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changeset | 193 // without r1Files.contains changelogRevision <= rev1 won't suffice as the file | 
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changeset | 194 // might get removed somewhere in between (changelogRevision < R < rev1) | 
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changeset | 195 return original.toString(); | 
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changeset | 196 } | 
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changeset | 197 break; // copy/rename done later | 
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changeset | 198 } | 
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changeset | 199 df = hgRepo.getFileNode(original); // try more steps away | 
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changeset | 200 } | 
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changeset | 201 return null; | 
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changeset | 202 } | 
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changeset | 203 | 
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changeset | 204 // XXX for r1..r2 status, only modified, added, removed (and perhaps, clean) make sense | 
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changeset | 205 // XXX Need to specify whether copy targets are in added or not (@see Inspector#copied above) | 
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changeset | 206 public static class Record implements HgStatusInspector { | 
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changeset | 207 private List<Path> modified, added, removed, clean, missing, unknown, ignored; | 
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changeset | 208 private Map<Path, Path> copied; | 
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changeset | 209 | 
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changeset | 210 private int startRev, endRev; | 
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changeset | 211 private HgStatusCollector statusHelper; | 
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changeset | 212 | 
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changeset | 213 // XXX StatusCollector may additionally initialize Record instance to speed lookup of changed file revisions | 
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changeset | 214 // here I need access to ManifestRevisionInspector via #raw(). Perhaps, non-static class (to get | 
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changeset | 215 // implicit reference to StatusCollector) may be better? | 
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changeset | 216 // Since users may want to reuse Record instance we've once created (and initialized), we need to | 
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changeset | 217 // ensure functionality is correct for each/any call (#walk checks instanceof Record and fixes it up) | 
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changeset | 218 // Perhaps, distinct helper (sc.getRevisionHelper().nodeid(fname)) would be better, just not clear | 
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changeset | 219 // how to supply [start..end] values there easily | 
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changeset | 220 /*package-local*/void init(int startRevision, int endRevision, HgStatusCollector self) { | 
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changeset | 221 startRev = startRevision; | 
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changeset | 222 endRev = endRevision; | 
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changeset | 223 statusHelper = self; | 
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changeset | 224 } | 
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changeset | 225 | 
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changeset | 226 public Nodeid nodeidBeforeChange(Path fname) { | 
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changeset | 227 if (statusHelper == null || startRev == BAD_REVISION) { | 
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changeset | 228 return null; | 
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changeset | 229 } | 
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changeset | 230 if ((modified == null || !modified.contains(fname)) && (removed == null || !removed.contains(fname))) { | 
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changeset | 231 return null; | 
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changeset | 232 } | 
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changeset | 233 return statusHelper.raw(startRev).nodeid(fname.toString()); | 
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changeset | 234 } | 
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changeset | 235 public Nodeid nodeidAfterChange(Path fname) { | 
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changeset | 236 if (statusHelper == null || endRev == BAD_REVISION) { | 
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changeset | 237 return null; | 
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changeset | 238 } | 
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changeset | 239 if ((modified == null || !modified.contains(fname)) && (added == null || !added.contains(fname))) { | 
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changeset | 240 return null; | 
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changeset | 241 } | 
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changeset | 242 return statusHelper.raw(endRev).nodeid(fname.toString()); | 
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changeset | 243 } | 
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changeset | 244 | 
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changeset | 245 public List<Path> getModified() { | 
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changeset | 246 return proper(modified); | 
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changeset | 247 } | 
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changeset | 248 | 
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changeset | 249 public List<Path> getAdded() { | 
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changeset | 250 return proper(added); | 
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changeset | 251 } | 
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changeset | 252 | 
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changeset | 253 public List<Path> getRemoved() { | 
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changeset | 254 return proper(removed); | 
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changeset | 255 } | 
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changeset | 256 | 
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changeset | 257 public Map<Path,Path> getCopied() { | 
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changeset | 258 if (copied == null) { | 
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changeset | 259 return Collections.emptyMap(); | 
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changeset | 260 } | 
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changeset | 261 return Collections.unmodifiableMap(copied); | 
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changeset | 262 } | 
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changeset | 263 | 
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changeset | 264 public List<Path> getClean() { | 
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changeset | 265 return proper(clean); | 
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changeset | 266 } | 
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changeset | 267 | 
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changeset | 268 public List<Path> getMissing() { | 
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changeset | 269 return proper(missing); | 
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changeset | 270 } | 
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changeset | 271 | 
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changeset | 272 public List<Path> getUnknown() { | 
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changeset | 273 return proper(unknown); | 
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changeset | 274 } | 
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changeset | 275 | 
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changeset | 276 public List<Path> getIgnored() { | 
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changeset | 277 return proper(ignored); | 
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changeset | 278 } | 
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changeset | 279 | 
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changeset | 280 private List<Path> proper(List<Path> l) { | 
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changeset | 281 if (l == null) { | 
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changeset | 282 return Collections.emptyList(); | 
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changeset | 283 } | 
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changeset | 284 return Collections.unmodifiableList(l); | 
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changeset | 285 } | 
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changeset | 286 | 
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changeset | 287 // | 
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changeset | 288 // | 
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changeset | 289 | 
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changeset | 290 public void modified(Path fname) { | 
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changeset | 291 modified = doAdd(modified, fname); | 
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changeset | 292 } | 
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changeset | 293 | 
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changeset | 294 public void added(Path fname) { | 
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changeset | 295 added = doAdd(added, fname); | 
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changeset | 296 } | 
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changeset | 297 | 
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changeset | 298 public void copied(Path fnameOrigin, Path fnameAdded) { | 
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changeset | 299 if (copied == null) { | 
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changeset | 300 copied = new LinkedHashMap<Path, Path>(); | 
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changeset | 301 } | 
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changeset | 302 added(fnameAdded); | 
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changeset | 303 copied.put(fnameAdded, fnameOrigin); | 
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changeset | 304 } | 
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changeset | 305 | 
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changeset | 306 public void removed(Path fname) { | 
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changeset | 307 removed = doAdd(removed, fname); | 
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changeset | 308 } | 
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changeset | 309 | 
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changeset | 310 public void clean(Path fname) { | 
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changeset | 311 clean = doAdd(clean, fname); | 
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changeset | 312 } | 
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changeset | 313 | 
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changeset | 314 public void missing(Path fname) { | 
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changeset | 315 missing = doAdd(missing, fname); | 
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changeset | 316 } | 
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changeset | 317 | 
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changeset | 318 public void unknown(Path fname) { | 
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changeset | 319 unknown = doAdd(unknown, fname); | 
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changeset | 320 } | 
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changeset | 321 | 
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changeset | 322 public void ignored(Path fname) { | 
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changeset | 323 ignored = doAdd(ignored, fname); | 
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changeset | 324 } | 
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changeset | 325 | 
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changeset | 326 private static List<Path> doAdd(List<Path> l, Path p) { | 
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changeset | 327 if (l == null) { | 
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changeset | 328 l = new LinkedList<Path>(); | 
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changeset | 329 } | 
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changeset | 330 l.add(p); | 
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changeset | 331 return l; | 
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changeset | 332 } | 
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changeset | 333 } | 
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changeset | 334 | 
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changeset | 335 /*package-local*/ static final class ManifestRevisionInspector implements HgManifest.Inspector { | 
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changeset | 336 private final TreeMap<String, Nodeid> idsMap; | 
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changeset | 337 private final TreeMap<String, String> flagsMap; | 
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changeset | 338 | 
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changeset | 339 public ManifestRevisionInspector() { | 
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changeset | 340 idsMap = new TreeMap<String, Nodeid>(); | 
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changeset | 341 flagsMap = new TreeMap<String, String>(); | 
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changeset | 342 } | 
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changeset | 343 | 
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changeset | 344 public Collection<String> files() { | 
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changeset | 345 return idsMap.keySet(); | 
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changeset | 346 } | 
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changeset | 347 | 
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changeset | 348 public Nodeid nodeid(String fname) { | 
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changeset | 349 return idsMap.get(fname); | 
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changeset | 350 } | 
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changeset | 351 | 
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changeset | 352 public String flags(String fname) { | 
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changeset | 353 return flagsMap.get(fname); | 
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changeset | 354 } | 
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changeset | 355 | 
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changeset | 356 // | 
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changeset | 357 | 
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changeset | 358 public boolean next(Nodeid nid, String fname, String flags) { | 
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changeset | 359 idsMap.put(fname, nid); | 
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changeset | 360 flagsMap.put(fname, flags); | 
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changeset | 361 return true; | 
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changeset | 362 } | 
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changeset | 363 | 
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changeset | 364 public boolean end(int revision) { | 
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changeset | 365 // in fact, this class cares about single revision | 
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changeset | 366 return false; | 
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changeset | 367 } | 
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changeset | 368 | 
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changeset | 369 public boolean begin(int revision, Nodeid nid) { | 
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changeset | 370 return true; | 
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changeset | 371 } | 
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changeset | 372 } | 
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changeset | 373 | 
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changeset | 374 } | 
