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annotate src/com/tmate/hgkit/ll/StatusCollector.java @ 59:b771e94a4f7c

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Introduce Internals to keep LocalHgRepo casts and alike in a single place. WCSC optionally to reuse SC data
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Tue, 18 Jan 2011 00:08:15 +0100
parents 576d6e8a09f6
children 19e9e220bf68
rev   line source
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1 /*
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2 * Copyright (c) 2011 Artem Tikhomirov
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3 */
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4 package com.tmate.hgkit.ll;
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5
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6 import java.util.Collection;
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7 import java.util.Collections;
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8 import java.util.HashMap;
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9 import java.util.LinkedHashMap;
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10 import java.util.LinkedList;
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11 import java.util.List;
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12 import java.util.Map;
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13 import java.util.TreeSet;
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14
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15 /**
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16 * RevisionWalker?
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17 * @author artem
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18 */
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19 public class StatusCollector {
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20
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21 private final HgRepository repo;
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22 private final Map<Integer, ManifestRevisionInspector> cache; // sparse array, in fact
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23
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24 public StatusCollector(HgRepository hgRepo) {
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25 this.repo = hgRepo;
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26 cache = new HashMap<Integer, ManifestRevisionInspector>();
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27 ManifestRevisionInspector emptyFakeState = new ManifestRevisionInspector(-1, -1);
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28 emptyFakeState.begin(-1, null);
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29 emptyFakeState.end(-1);
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30 cache.put(-1, emptyFakeState);
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31 }
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32
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33 private ManifestRevisionInspector get(int rev) {
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34 ManifestRevisionInspector i = cache.get(rev);
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35 if (i == null) {
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36 i = new ManifestRevisionInspector(rev, rev);
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37 cache.put(rev, i);
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38 repo.getManifest().walk(rev, rev, i);
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39 }
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40 return i;
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41 }
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42
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43 /*package-local*/ ManifestRevisionInspector raw(int rev) {
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44 return get(rev);
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45 }
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46
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47 // hg status --change <rev>
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48 public void change(int rev, Inspector inspector) {
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49 int[] parents = new int[2];
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50 repo.getChangelog().parents(rev, parents, null, null);
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51 walk(parents[0], rev, inspector);
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52 }
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53
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54 // I assume revision numbers are the same for changelog and manifest - here
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55 // user would like to pass changelog revision numbers, and I use them directly to walk manifest.
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56 // if this assumption is wrong, fix this (lookup manifest revisions from changeset).
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57 public void walk(int rev1, int rev2, Inspector inspector) {
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58 if (rev1 == rev2) {
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59 throw new IllegalArgumentException();
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60 }
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61 // in fact, rev1 and rev2 are often next (or close) to each other,
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62 // thus, we can optimize Manifest reads here (manifest.walk(rev1, rev2))
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63
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64 ManifestRevisionInspector r1, r2;
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65 if (!cache.containsKey(rev1) && !cache.containsKey(rev2) && Math.abs(rev1 - rev2) < 5 /*subjective equivalent of 'close enough'*/) {
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66 int minRev = rev1 < rev2 ? rev1 : rev2;
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67 int maxRev = minRev == rev1 ? rev2 : rev1;
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68 r1 = r2 = new ManifestRevisionInspector(minRev, maxRev);
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69 for (int i = minRev; i <= maxRev; i++) {
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70 cache.put(i, r1);
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71 }
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72 repo.getManifest().walk(minRev, maxRev, r1);
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73 } else {
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74 r1 = get(rev1);
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75 r2 = get(rev2);
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76 }
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77
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78 TreeSet<String> r1Files = new TreeSet<String>(r1.files(rev1));
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79 for (String fname : r2.files(rev2)) {
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80 if (r1Files.remove(fname)) {
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81 Nodeid nidR1 = r1.nodeid(rev1, fname);
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82 Nodeid nidR2 = r2.nodeid(rev2, fname);
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83 String flagsR1 = r1.flags(rev1, fname);
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84 String flagsR2 = r2.flags(rev2, fname);
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85 if (nidR1.equals(nidR2) && ((flagsR2 == null && flagsR1 == null) || flagsR2.equals(flagsR1))) {
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86 inspector.clean(fname);
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87 } else {
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88 inspector.modified(fname);
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89 }
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90 } else {
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91 inspector.added(fname);
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92 }
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93 }
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94 for (String left : r1Files) {
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95 inspector.removed(left);
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96 }
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97 // inspector.done() if useful e.g. in UI client
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98 }
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99
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100 public Record status(int rev1, int rev2) {
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101 Record rv = new Record();
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102 walk(rev1, rev2, rv);
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103 return rv;
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104 }
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105
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106 public interface Inspector {
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107 void modified(String fname);
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108 void added(String fname);
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109 void copied(String fnameOrigin, String fnameAdded); // if copied files of no interest, should delegate to self.added(fnameAdded);
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110 void removed(String fname);
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111 void clean(String fname);
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112 void missing(String fname); // aka deleted (tracked by Hg, but not available in FS any more
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113 void unknown(String fname); // not tracked
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114 void ignored(String fname);
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115 }
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116
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117 // XXX for r1..r2 status, only modified, added, removed (and perhaps, clean) make sense
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118 public static class Record implements Inspector {
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119 private List<String> modified, added, removed, clean, missing, unknown, ignored;
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120 private Map<String, String> copied;
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121
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122 public List<String> getModified() {
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123 return proper(modified);
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124 }
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125
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126 public List<String> getAdded() {
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127 return proper(added);
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128 }
05829a70b30b Status operation extracted into separate, cache-friendly class
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129
05829a70b30b Status operation extracted into separate, cache-friendly class
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130 public List<String> getRemoved() {
05829a70b30b Status operation extracted into separate, cache-friendly class
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diff changeset
131 return proper(removed);
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diff changeset
132 }
05829a70b30b Status operation extracted into separate, cache-friendly class
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133
05829a70b30b Status operation extracted into separate, cache-friendly class
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134 public Map<String,String> getCopied() {
05829a70b30b Status operation extracted into separate, cache-friendly class
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diff changeset
135 if (copied == null) {
05829a70b30b Status operation extracted into separate, cache-friendly class
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diff changeset
136 return Collections.emptyMap();
05829a70b30b Status operation extracted into separate, cache-friendly class
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137 }
05829a70b30b Status operation extracted into separate, cache-friendly class
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diff changeset
138 return Collections.unmodifiableMap(copied);
05829a70b30b Status operation extracted into separate, cache-friendly class
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139 }
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140
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141 public List<String> getClean() {
05829a70b30b Status operation extracted into separate, cache-friendly class
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142 return proper(clean);
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143 }
05829a70b30b Status operation extracted into separate, cache-friendly class
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144
05829a70b30b Status operation extracted into separate, cache-friendly class
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145 public List<String> getMissing() {
05829a70b30b Status operation extracted into separate, cache-friendly class
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146 return proper(missing);
05829a70b30b Status operation extracted into separate, cache-friendly class
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147 }
05829a70b30b Status operation extracted into separate, cache-friendly class
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148
05829a70b30b Status operation extracted into separate, cache-friendly class
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149 public List<String> getUnknown() {
05829a70b30b Status operation extracted into separate, cache-friendly class
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150 return proper(unknown);
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151 }
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152
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153 public List<String> getIgnored() {
05829a70b30b Status operation extracted into separate, cache-friendly class
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154 return proper(ignored);
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155 }
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156
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157 private List<String> proper(List<String> l) {
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158 if (l == null) {
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159 return Collections.emptyList();
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160 }
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161 return Collections.unmodifiableList(l);
05829a70b30b Status operation extracted into separate, cache-friendly class
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162 }
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163
05829a70b30b Status operation extracted into separate, cache-friendly class
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164 //
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165 //
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166
05829a70b30b Status operation extracted into separate, cache-friendly class
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167 public void modified(String fname) {
05829a70b30b Status operation extracted into separate, cache-friendly class
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168 modified = doAdd(modified, fname);
05829a70b30b Status operation extracted into separate, cache-friendly class
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
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169 }
05829a70b30b Status operation extracted into separate, cache-friendly class
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170
05829a70b30b Status operation extracted into separate, cache-friendly class
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171 public void added(String fname) {
05829a70b30b Status operation extracted into separate, cache-friendly class
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172 added = doAdd(added, fname);
05829a70b30b Status operation extracted into separate, cache-friendly class
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173 }
05829a70b30b Status operation extracted into separate, cache-friendly class
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174
05829a70b30b Status operation extracted into separate, cache-friendly class
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175 public void copied(String fnameOrigin, String fnameAdded) {
05829a70b30b Status operation extracted into separate, cache-friendly class
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176 if (copied == null) {
05829a70b30b Status operation extracted into separate, cache-friendly class
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177 copied = new LinkedHashMap<String, String>();
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178 }
05829a70b30b Status operation extracted into separate, cache-friendly class
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diff changeset
179 copied.put(fnameOrigin, fnameAdded);
05829a70b30b Status operation extracted into separate, cache-friendly class
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180 }
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181
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182 public void removed(String fname) {
05829a70b30b Status operation extracted into separate, cache-friendly class
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183 removed = doAdd(removed, fname);
05829a70b30b Status operation extracted into separate, cache-friendly class
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parents:
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184 }
05829a70b30b Status operation extracted into separate, cache-friendly class
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185
05829a70b30b Status operation extracted into separate, cache-friendly class
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186 public void clean(String fname) {
05829a70b30b Status operation extracted into separate, cache-friendly class
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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diff changeset
187 clean = doAdd(clean, fname);
05829a70b30b Status operation extracted into separate, cache-friendly class
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diff changeset
188 }
05829a70b30b Status operation extracted into separate, cache-friendly class
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189
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190 public void missing(String fname) {
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191 missing = doAdd(missing, fname);
05829a70b30b Status operation extracted into separate, cache-friendly class
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192 }
05829a70b30b Status operation extracted into separate, cache-friendly class
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193
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194 public void unknown(String fname) {
05829a70b30b Status operation extracted into separate, cache-friendly class
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195 unknown = doAdd(unknown, fname);
05829a70b30b Status operation extracted into separate, cache-friendly class
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196 }
05829a70b30b Status operation extracted into separate, cache-friendly class
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197
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198 public void ignored(String fname) {
05829a70b30b Status operation extracted into separate, cache-friendly class
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199 ignored = doAdd(ignored, fname);
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200 }
05829a70b30b Status operation extracted into separate, cache-friendly class
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201
05829a70b30b Status operation extracted into separate, cache-friendly class
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202 private static List<String> doAdd(List<String> l, String s) {
05829a70b30b Status operation extracted into separate, cache-friendly class
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203 if (l == null) {
05829a70b30b Status operation extracted into separate, cache-friendly class
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204 l = new LinkedList<String>();
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205 }
05829a70b30b Status operation extracted into separate, cache-friendly class
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206 l.add(s);
05829a70b30b Status operation extracted into separate, cache-friendly class
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diff changeset
207 return l;
05829a70b30b Status operation extracted into separate, cache-friendly class
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208 }
05829a70b30b Status operation extracted into separate, cache-friendly class
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209 }
05829a70b30b Status operation extracted into separate, cache-friendly class
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diff changeset
210
05829a70b30b Status operation extracted into separate, cache-friendly class
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diff changeset
211 public /*XXX private, actually. Made public unless repo.statusLocal finds better place*/ static final class ManifestRevisionInspector implements HgManifest.Inspector {
05829a70b30b Status operation extracted into separate, cache-friendly class
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diff changeset
212 private final HashMap<String, Nodeid>[] idsMap;
05829a70b30b Status operation extracted into separate, cache-friendly class
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diff changeset
213 private final HashMap<String, String>[] flagsMap;
05829a70b30b Status operation extracted into separate, cache-friendly class
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diff changeset
214 private final int baseRevision;
05829a70b30b Status operation extracted into separate, cache-friendly class
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diff changeset
215 private int r = -1; // cursor
05829a70b30b Status operation extracted into separate, cache-friendly class
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diff changeset
216
05829a70b30b Status operation extracted into separate, cache-friendly class
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diff changeset
217 /**
05829a70b30b Status operation extracted into separate, cache-friendly class
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diff changeset
218 * [minRev, maxRev]
56
576d6e8a09f6 Analog of 'hg status --change' command
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parents: 55
diff changeset
219 * [-1,-1] also accepted (for fake empty instance)
55
05829a70b30b Status operation extracted into separate, cache-friendly class
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diff changeset
220 * @param minRev - inclusive
05829a70b30b Status operation extracted into separate, cache-friendly class
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diff changeset
221 * @param maxRev - inclusive
05829a70b30b Status operation extracted into separate, cache-friendly class
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diff changeset
222 */
05829a70b30b Status operation extracted into separate, cache-friendly class
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diff changeset
223 @SuppressWarnings("unchecked")
05829a70b30b Status operation extracted into separate, cache-friendly class
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diff changeset
224 public ManifestRevisionInspector(int minRev, int maxRev) {
05829a70b30b Status operation extracted into separate, cache-friendly class
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diff changeset
225 baseRevision = minRev;
05829a70b30b Status operation extracted into separate, cache-friendly class
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diff changeset
226 int range = maxRev - minRev + 1;
05829a70b30b Status operation extracted into separate, cache-friendly class
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diff changeset
227 idsMap = new HashMap[range];
05829a70b30b Status operation extracted into separate, cache-friendly class
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diff changeset
228 flagsMap = new HashMap[range];
05829a70b30b Status operation extracted into separate, cache-friendly class
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parents:
diff changeset
229 }
05829a70b30b Status operation extracted into separate, cache-friendly class
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diff changeset
230
05829a70b30b Status operation extracted into separate, cache-friendly class
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diff changeset
231 public Collection<String> files(int rev) {
05829a70b30b Status operation extracted into separate, cache-friendly class
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parents:
diff changeset
232 if (rev < baseRevision || rev >= baseRevision + idsMap.length) {
05829a70b30b Status operation extracted into separate, cache-friendly class
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parents:
diff changeset
233 throw new IllegalArgumentException();
05829a70b30b Status operation extracted into separate, cache-friendly class
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parents:
diff changeset
234 }
05829a70b30b Status operation extracted into separate, cache-friendly class
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parents:
diff changeset
235 return idsMap[rev - baseRevision].keySet();
05829a70b30b Status operation extracted into separate, cache-friendly class
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parents:
diff changeset
236 }
05829a70b30b Status operation extracted into separate, cache-friendly class
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parents:
diff changeset
237
05829a70b30b Status operation extracted into separate, cache-friendly class
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parents:
diff changeset
238 public Nodeid nodeid(int rev, String fname) {
05829a70b30b Status operation extracted into separate, cache-friendly class
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parents:
diff changeset
239 if (rev < baseRevision || rev >= baseRevision + idsMap.length) {
05829a70b30b Status operation extracted into separate, cache-friendly class
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parents:
diff changeset
240 throw new IllegalArgumentException();
05829a70b30b Status operation extracted into separate, cache-friendly class
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
241 }
05829a70b30b Status operation extracted into separate, cache-friendly class
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
242 return idsMap[rev - baseRevision].get(fname);
05829a70b30b Status operation extracted into separate, cache-friendly class
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parents:
diff changeset
243 }
05829a70b30b Status operation extracted into separate, cache-friendly class
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diff changeset
244
05829a70b30b Status operation extracted into separate, cache-friendly class
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diff changeset
245 public String flags(int rev, String fname) {
05829a70b30b Status operation extracted into separate, cache-friendly class
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
246 if (rev < baseRevision || rev >= baseRevision + idsMap.length) {
05829a70b30b Status operation extracted into separate, cache-friendly class
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parents:
diff changeset
247 throw new IllegalArgumentException();
05829a70b30b Status operation extracted into separate, cache-friendly class
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parents:
diff changeset
248 }
05829a70b30b Status operation extracted into separate, cache-friendly class
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parents:
diff changeset
249 return flagsMap[rev - baseRevision].get(fname);
05829a70b30b Status operation extracted into separate, cache-friendly class
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parents:
diff changeset
250 }
05829a70b30b Status operation extracted into separate, cache-friendly class
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parents:
diff changeset
251
05829a70b30b Status operation extracted into separate, cache-friendly class
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parents:
diff changeset
252 //
05829a70b30b Status operation extracted into separate, cache-friendly class
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diff changeset
253
05829a70b30b Status operation extracted into separate, cache-friendly class
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parents:
diff changeset
254 public boolean next(Nodeid nid, String fname, String flags) {
05829a70b30b Status operation extracted into separate, cache-friendly class
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
255 idsMap[r].put(fname, nid);
05829a70b30b Status operation extracted into separate, cache-friendly class
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parents:
diff changeset
256 flagsMap[r].put(fname, flags);
05829a70b30b Status operation extracted into separate, cache-friendly class
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parents:
diff changeset
257 return true;
05829a70b30b Status operation extracted into separate, cache-friendly class
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parents:
diff changeset
258 }
05829a70b30b Status operation extracted into separate, cache-friendly class
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parents:
diff changeset
259
05829a70b30b Status operation extracted into separate, cache-friendly class
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parents:
diff changeset
260 public boolean end(int revision) {
05829a70b30b Status operation extracted into separate, cache-friendly class
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
261 assert revision == r + baseRevision;
05829a70b30b Status operation extracted into separate, cache-friendly class
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
262 r = -1;
05829a70b30b Status operation extracted into separate, cache-friendly class
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
263 return revision+1 < baseRevision + idsMap.length;
05829a70b30b Status operation extracted into separate, cache-friendly class
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
264 }
05829a70b30b Status operation extracted into separate, cache-friendly class
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
265
05829a70b30b Status operation extracted into separate, cache-friendly class
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
266 public boolean begin(int revision, Nodeid nid) {
05829a70b30b Status operation extracted into separate, cache-friendly class
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
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267 if (revision < baseRevision || revision >= baseRevision + idsMap.length) {
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268 throw new IllegalArgumentException();
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269 }
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270 r = revision - baseRevision;
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271 idsMap[r] = new HashMap<String, Nodeid>();
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272 flagsMap[r] = new HashMap<String, String>();
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273 return true;
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274 }
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275 }
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276
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277 }