annotate src/org/tmatesoft/hg/repo/HgManifest.java @ 268:c5980f287cc4

Use StringProxy when parsing manifest to minimize number of useless conversions and array instances
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Tue, 23 Aug 2011 22:30:56 +0200
parents ec921ef0628e
children 6dbbc53fc46d
rev   line source
13
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
1 /*
74
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 28
diff changeset
2 * Copyright (c) 2010-2011 TMate Software Ltd
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 28
diff changeset
3 *
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 28
diff changeset
4 * This program is free software; you can redistribute it and/or modify
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 28
diff changeset
5 * it under the terms of the GNU General Public License as published by
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 28
diff changeset
6 * the Free Software Foundation; version 2 of the License.
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 28
diff changeset
7 *
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 28
diff changeset
8 * This program is distributed in the hope that it will be useful,
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 28
diff changeset
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 28
diff changeset
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 28
diff changeset
11 * GNU General Public License for more details.
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 28
diff changeset
12 *
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 28
diff changeset
13 * For information on how to redistribute this software under
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 28
diff changeset
14 * the terms of a license other than GNU General Public License
102
a3a2e5deb320 Updated contact address to support@hg4j.com
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 77
diff changeset
15 * contact TMate Software at support@hg4j.com
2
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
16 */
74
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 28
diff changeset
17 package org.tmatesoft.hg.repo;
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 28
diff changeset
18
218
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
19 import static org.tmatesoft.hg.repo.HgRepository.TIP;
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
20
232
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
21 import java.io.ByteArrayOutputStream;
157
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 102
diff changeset
22 import java.io.IOException;
218
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
23 import java.util.ArrayList;
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
24 import java.util.Arrays;
157
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 102
diff changeset
25
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 102
diff changeset
26 import org.tmatesoft.hg.core.HgBadStateException;
74
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 28
diff changeset
27 import org.tmatesoft.hg.core.Nodeid;
157
d5268ca7715b Merged branch wrap-data-access into default for resource-friendly data access. Updated API to promote that friendliness to clients (channels, not byte[]). More exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 51 102
diff changeset
28 import org.tmatesoft.hg.internal.DataAccess;
266
0a2f445de774 Improve manifest parsing: reduce number of arrays instantiated for Nodeid
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 264
diff changeset
29 import org.tmatesoft.hg.internal.DigestHelper;
232
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
30 import org.tmatesoft.hg.internal.Experimental;
218
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
31 import org.tmatesoft.hg.internal.Lifecycle;
196
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
32 import org.tmatesoft.hg.internal.Pool;
77
c677e1593919 Moved RevlogStream implementation into .internal
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 74
diff changeset
33 import org.tmatesoft.hg.internal.RevlogStream;
232
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
34 import org.tmatesoft.hg.util.Path;
74
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 28
diff changeset
35
2
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
36
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
37 /**
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
38 *
74
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 28
diff changeset
39 * @author Artem Tikhomirov
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 28
diff changeset
40 * @author TMate Software Ltd.
2
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
41 */
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
42 public class HgManifest extends Revlog {
218
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
43 private RevisionMapper revisionMap;
2
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
44
13
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
45 /*package-local*/ HgManifest(HgRepository hgRepo, RevlogStream content) {
21
e929cecae4e1 Refactor to move revlog content to base class
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 20
diff changeset
46 super(hgRepo, content);
13
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
47 }
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
48
218
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
49 /**
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
50 *
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
51 * @param start changelog (not manifest!) revision to begin with
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
52 * @param end changelog (not manifest!) revision to stop, inclusive.
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
53 * @param inspector can't be <code>null</code>
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
54 */
19
40532cdc92fc Inspector (visitor) for manifest
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 16
diff changeset
55 public void walk(int start, int end, final Inspector inspector) {
196
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
56 if (inspector == null) {
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
57 throw new IllegalArgumentException();
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
58 }
218
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
59 int start0 = fromChangelog(start);
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
60 int end0 = fromChangelog(end);
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
61 content.iterate(start0, end0, true, new ManifestParser(inspector));
19
40532cdc92fc Inspector (visitor) for manifest
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 16
diff changeset
62 }
218
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
63
254
a620f0663a37 Collect tags for a file - improve performance of 'sparse' manifest reads
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 232
diff changeset
64 /**
a620f0663a37 Collect tags for a file - improve performance of 'sparse' manifest reads
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 232
diff changeset
65 * "Sparse" iteration of the manifest
a620f0663a37 Collect tags for a file - improve performance of 'sparse' manifest reads
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 232
diff changeset
66 *
a620f0663a37 Collect tags for a file - improve performance of 'sparse' manifest reads
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 232
diff changeset
67 * @param inspector
a620f0663a37 Collect tags for a file - improve performance of 'sparse' manifest reads
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 232
diff changeset
68 * @param localRevisions local changeset revisions to visit
a620f0663a37 Collect tags for a file - improve performance of 'sparse' manifest reads
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 232
diff changeset
69 */
a620f0663a37 Collect tags for a file - improve performance of 'sparse' manifest reads
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 232
diff changeset
70 public void walk(final Inspector inspector, int... localRevisions) {
a620f0663a37 Collect tags for a file - improve performance of 'sparse' manifest reads
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 232
diff changeset
71 if (inspector == null || localRevisions == null) {
a620f0663a37 Collect tags for a file - improve performance of 'sparse' manifest reads
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 232
diff changeset
72 throw new IllegalArgumentException();
a620f0663a37 Collect tags for a file - improve performance of 'sparse' manifest reads
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 232
diff changeset
73 }
a620f0663a37 Collect tags for a file - improve performance of 'sparse' manifest reads
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 232
diff changeset
74 int[] manifestLocalRevs = new int[localRevisions.length];
a620f0663a37 Collect tags for a file - improve performance of 'sparse' manifest reads
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 232
diff changeset
75 boolean needsSort = false;
a620f0663a37 Collect tags for a file - improve performance of 'sparse' manifest reads
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 232
diff changeset
76 for (int i = 0; i < localRevisions.length; i++) {
a620f0663a37 Collect tags for a file - improve performance of 'sparse' manifest reads
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 232
diff changeset
77 final int manifestLocalRev = fromChangelog(localRevisions[i]);
a620f0663a37 Collect tags for a file - improve performance of 'sparse' manifest reads
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 232
diff changeset
78 manifestLocalRevs[i] = manifestLocalRev;
a620f0663a37 Collect tags for a file - improve performance of 'sparse' manifest reads
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 232
diff changeset
79 if (i > 0 && manifestLocalRevs[i-1] > manifestLocalRev) {
a620f0663a37 Collect tags for a file - improve performance of 'sparse' manifest reads
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 232
diff changeset
80 needsSort = true;
a620f0663a37 Collect tags for a file - improve performance of 'sparse' manifest reads
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 232
diff changeset
81 }
a620f0663a37 Collect tags for a file - improve performance of 'sparse' manifest reads
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 232
diff changeset
82 }
a620f0663a37 Collect tags for a file - improve performance of 'sparse' manifest reads
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 232
diff changeset
83 if (needsSort) {
a620f0663a37 Collect tags for a file - improve performance of 'sparse' manifest reads
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 232
diff changeset
84 Arrays.sort(manifestLocalRevs);
a620f0663a37 Collect tags for a file - improve performance of 'sparse' manifest reads
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 232
diff changeset
85 }
a620f0663a37 Collect tags for a file - improve performance of 'sparse' manifest reads
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 232
diff changeset
86 content.iterate(manifestLocalRevs, true, new ManifestParser(inspector));
a620f0663a37 Collect tags for a file - improve performance of 'sparse' manifest reads
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 232
diff changeset
87 }
a620f0663a37 Collect tags for a file - improve performance of 'sparse' manifest reads
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 232
diff changeset
88
232
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
89 // manifest revision number that corresponds to the given changeset
218
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
90 /*package-local*/ int fromChangelog(int revisionNumber) {
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
91 if (HgInternals.wrongLocalRevision(revisionNumber)) {
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
92 throw new IllegalArgumentException(String.valueOf(revisionNumber));
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
93 }
257
f39fb6b3cc76 Handle revision constants correctly
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 254
diff changeset
94 if (revisionNumber == HgRepository.WORKING_COPY || revisionNumber == HgRepository.BAD_REVISION) {
f39fb6b3cc76 Handle revision constants correctly
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 254
diff changeset
95 throw new IllegalArgumentException("Can't use constants like WORKING_COPY or BAD_REVISION");
f39fb6b3cc76 Handle revision constants correctly
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 254
diff changeset
96 }
f39fb6b3cc76 Handle revision constants correctly
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 254
diff changeset
97 // revisionNumber == TIP is processed by RevisionMapper
218
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
98 if (revisionMap == null) {
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
99 revisionMap = new RevisionMapper(getRepo());
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
100 content.iterate(0, TIP, false, revisionMap);
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
101 }
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
102 return revisionMap.at(revisionNumber);
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
103 }
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
104
232
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
105 /**
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
106 * Extracts file revision as it was known at the time of given changeset.
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
107 *
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
108 * @param revisionNumber local changeset index
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
109 * @param file path to file in question
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
110 * @return file revision or <code>null</code> if manifest at specified revision doesn't list such file
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
111 */
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
112 @Experimental(reason="Perhaps, HgDataFile shall own this method")
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
113 public Nodeid getFileRevision(int revisionNumber, final Path file) {
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
114 int rev = fromChangelog(revisionNumber);
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
115 final Nodeid[] rv = new Nodeid[] { null };
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
116 content.iterate(rev, rev, true, new RevlogStream.Inspector() {
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
117
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
118 public void next(int revisionNumber, int actualLen, int baseRevision, int linkRevision, int parent1Revision, int parent2Revision, byte[] nodeid, DataAccess data) {
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
119 ByteArrayOutputStream bos = new ByteArrayOutputStream();
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
120 try {
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
121 byte b;
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
122 while (!data.isEmpty() && (b = data.readByte()) != '\n') {
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
123 if (b != 0) {
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
124 bos.write(b);
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
125 } else {
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
126 String fname = new String(bos.toByteArray());
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
127 bos.reset();
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
128 if (file.toString().equals(fname)) {
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
129 byte[] nid = new byte[40];
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
130 data.readBytes(nid, 0, 40);
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
131 rv[0] = Nodeid.fromAscii(nid, 0, 40);
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
132 break;
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
133 }
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
134 // else skip to the end of line
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
135 while (!data.isEmpty() && (b = data.readByte()) != '\n')
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
136 ;
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
137 }
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
138 }
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
139 } catch (IOException ex) {
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
140 throw new HgBadStateException(ex);
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
141 }
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
142 }
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
143 });
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
144 return rv[0];
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
145 }
b7347daa50e3 Allow to cat a file with changeset revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 222
diff changeset
146
19
40532cdc92fc Inspector (visitor) for manifest
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 16
diff changeset
147 public interface Inspector {
222
373e07cd3991 Due to discrepancy in manifest and changelor indexes, wrong manifest revisions got cached and compared
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 220
diff changeset
148 boolean begin(int mainfestRevision, Nodeid nid, int changelogRevision);
19
40532cdc92fc Inspector (visitor) for manifest
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 16
diff changeset
149 boolean next(Nodeid nid, String fname, String flags);
222
373e07cd3991 Due to discrepancy in manifest and changelor indexes, wrong manifest revisions got cached and compared
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 220
diff changeset
150 boolean end(int manifestRevision);
2
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
151 }
267
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
152
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
153 public interface ElementProxy<T> {
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
154 T get();
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
155 }
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
156
268
c5980f287cc4 Use StringProxy when parsing manifest to minimize number of useless conversions and array instances
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 267
diff changeset
157 /**
c5980f287cc4 Use StringProxy when parsing manifest to minimize number of useless conversions and array instances
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 267
diff changeset
158 * When Pool uses Strings directly,
c5980f287cc4 Use StringProxy when parsing manifest to minimize number of useless conversions and array instances
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 267
diff changeset
159 * ManifestParser creates new String instance with new char[] value, and does byte->char conversion.
c5980f287cc4 Use StringProxy when parsing manifest to minimize number of useless conversions and array instances
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 267
diff changeset
160 * For cpython repo, walk(0..10k), there are over 16 million filenames, of them only 3020 unique.
c5980f287cc4 Use StringProxy when parsing manifest to minimize number of useless conversions and array instances
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 267
diff changeset
161 * This means there are 15.9 million useless char[] instances and byte->char conversions
c5980f287cc4 Use StringProxy when parsing manifest to minimize number of useless conversions and array instances
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 267
diff changeset
162 *
c5980f287cc4 Use StringProxy when parsing manifest to minimize number of useless conversions and array instances
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 267
diff changeset
163 * When String is wrapped into {@link StringProxy}, there's extra overhead of byte[] representation
c5980f287cc4 Use StringProxy when parsing manifest to minimize number of useless conversions and array instances
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 267
diff changeset
164 * of the String, but these are only for unique Strings (3020 in the example above). Besides, I save
c5980f287cc4 Use StringProxy when parsing manifest to minimize number of useless conversions and array instances
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 267
diff changeset
165 * useless char[] and byte->char conversions.
c5980f287cc4 Use StringProxy when parsing manifest to minimize number of useless conversions and array instances
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 267
diff changeset
166 */
c5980f287cc4 Use StringProxy when parsing manifest to minimize number of useless conversions and array instances
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 267
diff changeset
167 private static class StringProxy {
267
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
168 private byte[] data;
268
c5980f287cc4 Use StringProxy when parsing manifest to minimize number of useless conversions and array instances
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 267
diff changeset
169 private int start;
c5980f287cc4 Use StringProxy when parsing manifest to minimize number of useless conversions and array instances
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 267
diff changeset
170 private final int hash, length;
267
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
171 private String result;
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
172
268
c5980f287cc4 Use StringProxy when parsing manifest to minimize number of useless conversions and array instances
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 267
diff changeset
173 public StringProxy(byte[] data, int start, int length) {
267
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
174 this.data = data;
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
175 this.start = start;
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
176 this.length = length;
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
177
268
c5980f287cc4 Use StringProxy when parsing manifest to minimize number of useless conversions and array instances
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 267
diff changeset
178 // copy from String.hashCode(). In fact, not necessarily match result of String(data).hashCode
c5980f287cc4 Use StringProxy when parsing manifest to minimize number of useless conversions and array instances
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 267
diff changeset
179 // just need some nice algorithm here
267
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
180 int h = 0;
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
181 byte[] d = data;
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
182 for (int i = 0, off = start, len = length; i < len; i++) {
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
183 h = 31 * h + d[off++];
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
184 }
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
185 hash = h;
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
186 }
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
187
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
188 @Override
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
189 public boolean equals(Object obj) {
268
c5980f287cc4 Use StringProxy when parsing manifest to minimize number of useless conversions and array instances
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 267
diff changeset
190 if (false == obj instanceof StringProxy) {
267
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
191 return false;
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
192 }
268
c5980f287cc4 Use StringProxy when parsing manifest to minimize number of useless conversions and array instances
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 267
diff changeset
193 StringProxy o = (StringProxy) obj;
267
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
194 if (o.result != null && result != null) {
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
195 return result.equals(o.result);
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
196 }
268
c5980f287cc4 Use StringProxy when parsing manifest to minimize number of useless conversions and array instances
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 267
diff changeset
197 if (o.length != length || o.hash != hash) {
267
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
198 return false;
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
199 }
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
200 for (int i = 0, x = o.start, y = start; i < length; i++) {
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
201 if (o.data[x++] != data[y++]) {
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
202 return false;
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
203 }
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
204 }
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
205 return true;
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
206 }
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
207 @Override
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
208 public int hashCode() {
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
209 return hash;
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
210 }
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
211
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
212 public String freeze() {
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
213 if (result == null) {
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
214 result = new String(data, start, length);
268
c5980f287cc4 Use StringProxy when parsing manifest to minimize number of useless conversions and array instances
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 267
diff changeset
215 // release reference to bigger data array, make a copy of relevant part only
c5980f287cc4 Use StringProxy when parsing manifest to minimize number of useless conversions and array instances
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 267
diff changeset
216 byte[] d = new byte[length];
c5980f287cc4 Use StringProxy when parsing manifest to minimize number of useless conversions and array instances
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 267
diff changeset
217 System.arraycopy(data, start, d, 0, length);
c5980f287cc4 Use StringProxy when parsing manifest to minimize number of useless conversions and array instances
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 267
diff changeset
218 data = d;
c5980f287cc4 Use StringProxy when parsing manifest to minimize number of useless conversions and array instances
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 267
diff changeset
219 start = 0;
267
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
220 }
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
221 return result;
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
222 }
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
223 }
196
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
224
268
c5980f287cc4 Use StringProxy when parsing manifest to minimize number of useless conversions and array instances
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 267
diff changeset
225 private static class ManifestParser implements RevlogStream.Inspector {
196
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
226 private boolean gtg = true; // good to go
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
227 private final Inspector inspector;
267
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
228 private Pool<Nodeid> nodeidPool, thisRevPool;
268
c5980f287cc4 Use StringProxy when parsing manifest to minimize number of useless conversions and array instances
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 267
diff changeset
229 private final Pool<StringProxy> fnamePool;
c5980f287cc4 Use StringProxy when parsing manifest to minimize number of useless conversions and array instances
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 267
diff changeset
230 private final Pool<StringProxy> flagsPool;
266
0a2f445de774 Improve manifest parsing: reduce number of arrays instantiated for Nodeid
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 264
diff changeset
231 private byte[] nodeidLookupBuffer = new byte[20]; // get reassigned each time new Nodeid is added to pool
262
3dcd3dd90c77 Improve manifest parsing: decode bytes to chars once, minimize arraycopy on String instantiation, keep set of file revisions from previous manifest only
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 257
diff changeset
232
196
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
233 public ManifestParser(Inspector delegate) {
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
234 assert delegate != null;
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
235 inspector = delegate;
267
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
236 nodeidPool = new Pool<Nodeid>();
268
c5980f287cc4 Use StringProxy when parsing manifest to minimize number of useless conversions and array instances
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 267
diff changeset
237 fnamePool = new Pool<StringProxy>();
c5980f287cc4 Use StringProxy when parsing manifest to minimize number of useless conversions and array instances
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 267
diff changeset
238 flagsPool = new Pool<StringProxy>();
267
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
239 thisRevPool = new Pool<Nodeid>();
196
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
240 }
268
c5980f287cc4 Use StringProxy when parsing manifest to minimize number of useless conversions and array instances
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 267
diff changeset
241
196
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
242 public void next(int revisionNumber, int actualLen, int baseRevision, int linkRevision, int parent1Revision, int parent2Revision, byte[] nodeid, DataAccess da) {
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
243 if (!gtg) {
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
244 return;
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
245 }
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
246 try {
222
373e07cd3991 Due to discrepancy in manifest and changelor indexes, wrong manifest revisions got cached and compared
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 220
diff changeset
247 gtg = gtg && inspector.begin(revisionNumber, new Nodeid(nodeid, true), linkRevision);
196
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
248 String fname = null;
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
249 String flags = null;
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
250 Nodeid nid = null;
267
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
251 int i;
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
252 byte[] data = da.byteArray();
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
253 for (i = 0; gtg && i < actualLen; i++) {
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
254 int x = i;
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
255 for( ; data[i] != '\n' && i < actualLen; i++) {
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
256 if (fname == null && data[i] == 0) {
268
c5980f287cc4 Use StringProxy when parsing manifest to minimize number of useless conversions and array instances
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 267
diff changeset
257 StringProxy px = fnamePool.unify(new StringProxy(data, x, i - x));
c5980f287cc4 Use StringProxy when parsing manifest to minimize number of useless conversions and array instances
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 267
diff changeset
258 // if (cached = fnamePool.unify(px))== px then cacheMiss, else cacheHit
c5980f287cc4 Use StringProxy when parsing manifest to minimize number of useless conversions and array instances
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 267
diff changeset
259 // cpython 0..10k: hits: 15 989 152, misses: 3020
c5980f287cc4 Use StringProxy when parsing manifest to minimize number of useless conversions and array instances
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 267
diff changeset
260 fname = px.freeze();
267
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
261 x = i+1;
196
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
262 }
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
263 }
267
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
264 if (i < actualLen) {
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
265 assert data[i] == '\n';
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
266 int nodeidLen = i - x < 40 ? i-x : 40; // if > 40, there are flags
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
267 DigestHelper.ascii2bin(data, x, nodeidLen, nodeidLookupBuffer); // ignore return value as it's unlikely to have NULL in manifest
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
268 nid = new Nodeid(nodeidLookupBuffer, false); // this Nodeid is for pool lookup only, mock object
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
269 Nodeid cached = nodeidPool.unify(nid);
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
270 if (cached == nid) {
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
271 // buffer now belongs to the cached nodeid
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
272 nodeidLookupBuffer = new byte[20];
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
273 } else {
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
274 nid = cached; // use existing version, discard the lookup object
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
275 } // for cpython 0..10k, cache hits are 15 973 301, vs 18871 misses.
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
276 thisRevPool.record(nid); // memorize revision for the next iteration.
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
277 if (nodeidLen + x < i) {
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
278 // 'x' and 'l' for executable bits and symlinks?
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
279 // hg --debug manifest shows 644 for each regular file in my repo
268
c5980f287cc4 Use StringProxy when parsing manifest to minimize number of useless conversions and array instances
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 267
diff changeset
280 // for cpython 0..10k, there are 4361062 flagPool checks, and there's only 1 unique flag
c5980f287cc4 Use StringProxy when parsing manifest to minimize number of useless conversions and array instances
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 267
diff changeset
281 flags = flagsPool.unify(new StringProxy(data, x + nodeidLen, i-x-nodeidLen)).freeze();
267
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
282 }
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
283 gtg = gtg && inspector.next(nid, fname, flags);
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
284 }
196
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
285 nid = null;
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
286 fname = flags = null;
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
287 }
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
288 gtg = gtg && inspector.end(revisionNumber);
262
3dcd3dd90c77 Improve manifest parsing: decode bytes to chars once, minimize arraycopy on String instantiation, keep set of file revisions from previous manifest only
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 257
diff changeset
289 //
3dcd3dd90c77 Improve manifest parsing: decode bytes to chars once, minimize arraycopy on String instantiation, keep set of file revisions from previous manifest only
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 257
diff changeset
290 // keep only actual file revisions, found at this version
3dcd3dd90c77 Improve manifest parsing: decode bytes to chars once, minimize arraycopy on String instantiation, keep set of file revisions from previous manifest only
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 257
diff changeset
291 // (next manifest is likely to refer to most of them, although in specific cases
3dcd3dd90c77 Improve manifest parsing: decode bytes to chars once, minimize arraycopy on String instantiation, keep set of file revisions from previous manifest only
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 257
diff changeset
292 // like commit in another branch a lot may be useless)
3dcd3dd90c77 Improve manifest parsing: decode bytes to chars once, minimize arraycopy on String instantiation, keep set of file revisions from previous manifest only
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 257
diff changeset
293 nodeidPool.clear();
267
ec921ef0628e Revert manifest parser changes - no single string and back to HashMap Pool
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 266
diff changeset
294 Pool<Nodeid> t = nodeidPool;
262
3dcd3dd90c77 Improve manifest parsing: decode bytes to chars once, minimize arraycopy on String instantiation, keep set of file revisions from previous manifest only
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 257
diff changeset
295 nodeidPool = thisRevPool;
264
6bb5e7ed051a Optimize memory usage (reduce number of objects instantiated) when pooling file names and nodeids during manifest parsing
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 262
diff changeset
296 thisRevPool = t;
196
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
297 } catch (IOException ex) {
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
298 throw new HgBadStateException(ex);
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
299 }
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
300 }
e2115da4cf6a Pool objects to avoid memory polution with duplicates
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 157
diff changeset
301 }
218
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
302
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
303 private static class RevisionMapper implements RevlogStream.Inspector, Lifecycle {
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
304
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
305 private final int changelogRevisions;
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
306 private int[] changelog2manifest;
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
307 private final HgRepository repo;
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
308
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
309 public RevisionMapper(HgRepository hgRepo) {
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
310 repo = hgRepo;
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
311 changelogRevisions = repo.getChangelog().getRevisionCount();
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
312 }
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
313
257
f39fb6b3cc76 Handle revision constants correctly
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 254
diff changeset
314 // respects TIP
218
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
315 public int at(int revisionNumber) {
257
f39fb6b3cc76 Handle revision constants correctly
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 254
diff changeset
316 if (revisionNumber == TIP) {
f39fb6b3cc76 Handle revision constants correctly
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 254
diff changeset
317 revisionNumber = changelogRevisions - 1;
f39fb6b3cc76 Handle revision constants correctly
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 254
diff changeset
318 }
218
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
319 if (changelog2manifest != null) {
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
320 return changelog2manifest[revisionNumber];
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
321 }
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
322 return revisionNumber;
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
323 }
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
324
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
325 public void next(int revisionNumber, int actualLen, int baseRevision, int linkRevision, int parent1Revision, int parent2Revision, byte[] nodeid, DataAccess data) {
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
326 if (changelog2manifest != null) {
220
8de327242aa0 Basic information about branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
327 // next assertion is not an error, rather assumption check, which is too development-related to be explicit exception -
8de327242aa0 Basic information about branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
328 // I just wonder if there are manifests that have two entries pointing to single changeset. It seems unrealistic, though -
8de327242aa0 Basic information about branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
329 // changeset records one and only one manifest nodeid
8de327242aa0 Basic information about branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
330 assert changelog2manifest[linkRevision] == -1 : String.format("revision:%d, link:%d, already linked to revision:%d", revisionNumber, linkRevision, changelog2manifest[linkRevision]);
218
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
331 changelog2manifest[linkRevision] = revisionNumber;
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
332 } else {
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
333 if (revisionNumber != linkRevision) {
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
334 changelog2manifest = new int[changelogRevisions];
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
335 Arrays.fill(changelog2manifest, -1);
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
336 for (int i = 0; i < revisionNumber; changelog2manifest[i] = i, i++)
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
337 ;
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
338 changelog2manifest[linkRevision] = revisionNumber;
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
339 }
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
340 }
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
341 }
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
342
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
343 public void start(int count, Callback callback, Object token) {
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
344 if (count != changelogRevisions) {
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
345 assert count < changelogRevisions; // no idea what to do if manifest has more revisions than changelog
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
346 // the way how manifest may contain more revisions than changelog, as I can imagine, is a result of
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
347 // some kind of an import tool (e.g. from SVN or CVS), that creates manifest and changelog independently.
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
348 // Note, it's pure guess, I didn't see such repository yet (although the way manifest revisions
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
349 // in cpython repo are numbered makes me think aforementioned way)
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
350 changelog2manifest = new int[changelogRevisions];
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
351 Arrays.fill(changelog2manifest, -1);
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
352 }
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
353 }
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
354
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
355 public void finish(Object token) {
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
356 if (changelog2manifest == null) {
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
357 return;
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
358 }
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
359 // I assume there'd be not too many revisions we don't know manifest of
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
360 ArrayList<Integer> undefinedChangelogRevision = new ArrayList<Integer>();
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
361 for (int i = 0; i < changelog2manifest.length; i++) {
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
362 if (changelog2manifest[i] == -1) {
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
363 undefinedChangelogRevision.add(i);
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
364 }
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
365 }
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
366 for (int u : undefinedChangelogRevision) {
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
367 Nodeid manifest = repo.getChangelog().range(u, u).get(0).manifest();
220
8de327242aa0 Basic information about branches
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 218
diff changeset
368 // FIXME calculate those missing effectively (e.g. cache and sort nodeids to speed lookup
218
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
369 // right away in the #next (may refactor ParentWalker's sequential and sorted into dedicated helper and reuse here)
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
370 changelog2manifest[u] = repo.getManifest().getLocalRevision(manifest);
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
371 }
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
372 }
047b1dec7a04 Issue 7: Correctly handle manifest and changelog with different number of (or non-matching) revisions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 196
diff changeset
373 }
2
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
374 }