Mercurial > jhg

annotate src/org/tmatesoft/hg/internal/DirstateReader.java @ 576:3c4db86e8c1f

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Issue 43: poor performance with InflaterDataAccess. Phase 2: inflate into buffer, effective skip and readByte/readBytes()
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Tue, 16 Apr 2013 19:31:57 +0200
parents 243202f1bda5
children 5daa42067e7c
rev   line source
10
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
1 /*
525
0be5be8d57e9 Repository checkout support, first iteration
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 501
diff changeset
2 * Copyright (c) 2010-2013 TMate Software Ltd
74
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 59
diff changeset
3 *
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 59
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: 59
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: 59
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: 59
diff changeset
7 *
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 59
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: 59
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: 59
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: 59
diff changeset
11 * GNU General Public License for more details.
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 59
diff changeset
12 *
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 59
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: 59
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: 93
diff changeset
15 * contact TMate Software at support@hg4j.com
10
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
16 */
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
17 package org.tmatesoft.hg.internal;
10
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
18
284
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
19 import static org.tmatesoft.hg.core.Nodeid.NULL;
527
47b7bedf0569 Tests for present HgCheckoutCommand functionality. Update branch information on checkout. Use UTF8 encoding for the branch file
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
20 import static org.tmatesoft.hg.repo.HgRepositoryFiles.Branch;
490
b3c16d1aede0 Refactoring: move HgRepository's implementation aspects to Internals (which is now its imlementation counterpart and primary repository class to be used by other parts of the library)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 456
diff changeset
21 import static org.tmatesoft.hg.repo.HgRepositoryFiles.Dirstate;
456
909306e412e2 Refactor LogFacility and SessionContext, better API for both
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 431
diff changeset
22 import static org.tmatesoft.hg.util.LogFacility.Severity.Debug;
284
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
23
252
a6d19adc2636 HgRepository.getWorkingCopyBranchName() to retrieve branch associated with working directory
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 231
diff changeset
24 import java.io.BufferedReader;
10
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
25 import java.io.File;
527
47b7bedf0569 Tests for present HgCheckoutCommand functionality. Update branch information on checkout. Use UTF8 encoding for the branch file
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
26 import java.io.FileInputStream;
348
a0864b2892cd Expose errors reading mercurial control files with exception
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 332
diff changeset
27 import java.io.FileNotFoundException;
10
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
28 import java.io.IOException;
527
47b7bedf0569 Tests for present HgCheckoutCommand functionality. Update branch information on checkout. Use UTF8 encoding for the branch file
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
29 import java.io.InputStreamReader;
10
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
30
231
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 227
diff changeset
31 import org.tmatesoft.hg.core.Nodeid;
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
32 import org.tmatesoft.hg.repo.HgDirstate;
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
33 import org.tmatesoft.hg.repo.HgDirstate.EntryKind;
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
34 import org.tmatesoft.hg.repo.HgInvalidControlFileException;
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
35 import org.tmatesoft.hg.repo.HgRepository;
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
36 import org.tmatesoft.hg.util.LogFacility.Severity;
284
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
37 import org.tmatesoft.hg.util.Pair;
141
8248aae33f7d Adopt FileIterator moving towards WCStatusCollector parameterizing. Improved path handling, move 'em around
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 102
diff changeset
38 import org.tmatesoft.hg.util.Path;
74
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 59
diff changeset
39
10
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
40
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
41 /**
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
42 * Parse dirstate file
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
43 *
10
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
44 * @see http://mercurial.selenic.com/wiki/DirState
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
45 * @see http://mercurial.selenic.com/wiki/FileFormats#dirstate
74
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 59
diff changeset
46 *
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 59
diff changeset
47 * @author Artem Tikhomirov
6f1b88693d48 Complete refactoring to org.tmatesoft
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 59
diff changeset
48 * @author TMate Software Ltd.
10
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
49 */
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
50 public final class DirstateReader {
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
51 // dirstate read code originally lived in org.tmatesoft.hg.repo.HgDirstate
290
8faad08c709b Expose dirstate to allow pre-configuration of FileIterators for status collection in particular
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 284
diff changeset
52
490
b3c16d1aede0 Refactoring: move HgRepository's implementation aspects to Internals (which is now its imlementation counterpart and primary repository class to be used by other parts of the library)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 456
diff changeset
53 private final Internals repo;
431
12f668401613 FIXMEs: awkward API refactored, what need to be internal got hidden; public aspects got captured in slim interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 430
diff changeset
54 private final Path.Source pathPool;
284
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
55 private Pair<Nodeid, Nodeid> parents;
252
a6d19adc2636 HgRepository.getWorkingCopyBranchName() to retrieve branch associated with working directory
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 231
diff changeset
56
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
57 public DirstateReader(Internals hgRepo, Path.Source pathSource) {
252
a6d19adc2636 HgRepository.getWorkingCopyBranchName() to retrieve branch associated with working directory
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 231
diff changeset
58 repo = hgRepo;
431
12f668401613 FIXMEs: awkward API refactored, what need to be internal got hidden; public aspects got captured in slim interfaces
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 430
diff changeset
59 pathPool = pathSource;
10
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
60 }
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
61
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
62 public void readInto(HgDirstate.Inspector target) throws HgInvalidControlFileException {
490
b3c16d1aede0 Refactoring: move HgRepository's implementation aspects to Internals (which is now its imlementation counterpart and primary repository class to be used by other parts of the library)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 456
diff changeset
63 EncodingHelper encodingHelper = repo.buildFileNameEncodingHelper();
371
aa2e589d4e84 NPE in HgWCStatusCollector:initDirstateParentManifest (aka AssertionError in HgDirstate:parents())
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 348
diff changeset
64 parents = new Pair<Nodeid,Nodeid>(Nodeid.NULL, Nodeid.NULL);
490
b3c16d1aede0 Refactoring: move HgRepository's implementation aspects to Internals (which is now its imlementation counterpart and primary repository class to be used by other parts of the library)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 456
diff changeset
65 File dirstateFile = getDirstateFile(repo);
59
b771e94a4f7c Introduce Internals to keep LocalHgRepo casts and alike in a single place. WCSC optionally to reuse SC data
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 18
diff changeset
66 if (dirstateFile == null || !dirstateFile.exists()) {
10
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
67 return;
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
68 }
534
243202f1bda5 Commit: refactor revision creation code from clone command to work separately, fit into existing library structure
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 527
diff changeset
69 DataAccess da = repo.getDataAccess().createReader(dirstateFile);
10
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
70 try {
421
fdd7d756dea0 Allow IOException from DataAccess methods for subclasses with non-trivial implementations, to avoid exception dumps when inapropriate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 418
diff changeset
71 if (da.isEmpty()) {
fdd7d756dea0 Allow IOException from DataAccess methods for subclasses with non-trivial implementations, to avoid exception dumps when inapropriate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 418
diff changeset
72 return;
fdd7d756dea0 Allow IOException from DataAccess methods for subclasses with non-trivial implementations, to avoid exception dumps when inapropriate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 418
diff changeset
73 }
284
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
74 parents = internalReadParents(da);
227
0fd10e5016dd IOException on empty repository with 40-byte dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 141
diff changeset
75 // hg init; hg up produces an empty repository where dirstate has parents (40 bytes) only
0fd10e5016dd IOException on empty repository with 40-byte dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 141
diff changeset
76 while (!da.isEmpty()) {
10
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
77 final byte state = da.readByte();
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
78 final int fmode = da.readInt();
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
79 final int size = da.readInt();
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
80 final int time = da.readInt();
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
81 final int nameLen = da.readInt();
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
82 String fn1 = null, fn2 = null;
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
83 byte[] name = new byte[nameLen];
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
84 da.readBytes(name, 0, nameLen);
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
85 for (int i = 0; i < nameLen; i++) {
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
86 if (name[i] == 0) {
412
63c5a9d7ca3f Follow-up for Issue 29: unify path translation for manifest and dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 388
diff changeset
87 fn1 = encodingHelper.fromDirstate(name, 0, i);
63c5a9d7ca3f Follow-up for Issue 29: unify path translation for manifest and dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 388
diff changeset
88 fn2 = encodingHelper.fromDirstate(name, i+1, nameLen - i - 1);
10
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
89 break;
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
90 }
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
91 }
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
92 if (fn1 == null) {
412
63c5a9d7ca3f Follow-up for Issue 29: unify path translation for manifest and dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 388
diff changeset
93 fn1 = encodingHelper.fromDirstate(name, 0, nameLen);
10
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
94 }
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
95 HgDirstate.Record r = new HgDirstate.Record(fmode, size, time, pathPool.path(fn1), fn2 == null ? null : pathPool.path(fn2));
10
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
96 if (state == 'n') {
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
97 target.next(EntryKind.Normal, r);
10
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
98 } else if (state == 'a') {
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
99 target.next(EntryKind.Added, r);
10
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
100 } else if (state == 'r') {
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
101 target.next(EntryKind.Removed, r);
10
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
102 } else if (state == 'm') {
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
103 target.next(EntryKind.Merged, r);
10
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
104 } else {
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
105 repo.getSessionContext().getLog().dump(getClass(), Severity.Warn, "Dirstate record for file %s (size: %d, tstamp:%d) has unknown state '%c'", r.name(), r.size(), r.modificationTime(), state);
10
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
106 }
227
0fd10e5016dd IOException on empty repository with 40-byte dirstate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 141
diff changeset
107 }
10
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
108 } catch (IOException ex) {
348
a0864b2892cd Expose errors reading mercurial control files with exception
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 332
diff changeset
109 throw new HgInvalidControlFileException("Dirstate read failed", ex, dirstateFile);
10
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
110 } finally {
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
111 da.done();
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
112 }
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
113 }
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
114
284
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
115 private static Pair<Nodeid, Nodeid> internalReadParents(DataAccess da) throws IOException {
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
116 byte[] parents = new byte[40];
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
117 da.readBytes(parents, 0, 40);
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
118 Nodeid n1 = Nodeid.fromBinary(parents, 0);
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
119 Nodeid n2 = Nodeid.fromBinary(parents, 20);
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
120 parents = null;
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
121 return new Pair<Nodeid, Nodeid>(n1, n2);
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
122 }
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
123
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
124 /**
290
8faad08c709b Expose dirstate to allow pre-configuration of FileIterators for status collection in particular
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 284
diff changeset
125 * @return pair of working copy parents, with {@link Nodeid#NULL} for missing values.
284
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
126 */
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
127 public Pair<Nodeid,Nodeid> parents() {
348
a0864b2892cd Expose errors reading mercurial control files with exception
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 332
diff changeset
128 assert parents != null; // instance not initialized with #read()
284
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
129 return parents;
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
130 }
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
131
490
b3c16d1aede0 Refactoring: move HgRepository's implementation aspects to Internals (which is now its imlementation counterpart and primary repository class to be used by other parts of the library)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 456
diff changeset
132 private static File getDirstateFile(Internals repo) {
b3c16d1aede0 Refactoring: move HgRepository's implementation aspects to Internals (which is now its imlementation counterpart and primary repository class to be used by other parts of the library)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 456
diff changeset
133 return repo.getFileFromRepoDir(Dirstate.getName());
b3c16d1aede0 Refactoring: move HgRepository's implementation aspects to Internals (which is now its imlementation counterpart and primary repository class to be used by other parts of the library)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 456
diff changeset
134 }
b3c16d1aede0 Refactoring: move HgRepository's implementation aspects to Internals (which is now its imlementation counterpart and primary repository class to be used by other parts of the library)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 456
diff changeset
135
284
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
136 /**
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
137 * @return pair of parents, both {@link Nodeid#NULL} if dirstate is not available
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
138 */
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
139 public static Pair<Nodeid, Nodeid> readParents(Internals internalRepo) throws HgInvalidControlFileException {
284
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
140 // do not read whole dirstate if all we need is WC parent information
490
b3c16d1aede0 Refactoring: move HgRepository's implementation aspects to Internals (which is now its imlementation counterpart and primary repository class to be used by other parts of the library)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 456
diff changeset
141 File dirstateFile = getDirstateFile(internalRepo);
231
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 227
diff changeset
142 if (dirstateFile == null || !dirstateFile.exists()) {
284
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
143 return new Pair<Nodeid,Nodeid>(NULL, NULL);
231
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 227
diff changeset
144 }
534
243202f1bda5 Commit: refactor revision creation code from clone command to work separately, fit into existing library structure
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 527
diff changeset
145 DataAccess da = internalRepo.getDataAccess().createReader(dirstateFile);
231
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 227
diff changeset
146 try {
421
fdd7d756dea0 Allow IOException from DataAccess methods for subclasses with non-trivial implementations, to avoid exception dumps when inapropriate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 418
diff changeset
147 if (da.isEmpty()) {
fdd7d756dea0 Allow IOException from DataAccess methods for subclasses with non-trivial implementations, to avoid exception dumps when inapropriate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 418
diff changeset
148 return new Pair<Nodeid,Nodeid>(NULL, NULL);
fdd7d756dea0 Allow IOException from DataAccess methods for subclasses with non-trivial implementations, to avoid exception dumps when inapropriate
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 418
diff changeset
149 }
284
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
150 return internalReadParents(da);
231
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 227
diff changeset
151 } catch (IOException ex) {
348
a0864b2892cd Expose errors reading mercurial control files with exception
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 332
diff changeset
152 throw new HgInvalidControlFileException("Error reading working copy parents from dirstate", ex, dirstateFile);
231
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 227
diff changeset
153 } finally {
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 227
diff changeset
154 da.done();
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 227
diff changeset
155 }
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 227
diff changeset
156 }
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 227
diff changeset
157
1792b37650f2 Introduced access to conflict resolution information (merge state)
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 227
diff changeset
158 /**
430
d280759c2a3f branch information is not directly related to dirstate, clean API from this dependency
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 423
diff changeset
159 * TODO [post-1.0] it's really not a proper place for the method, need WorkingCopyContainer or similar
252
a6d19adc2636 HgRepository.getWorkingCopyBranchName() to retrieve branch associated with working directory
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 231
diff changeset
160 * @return branch associated with the working directory
a6d19adc2636 HgRepository.getWorkingCopyBranchName() to retrieve branch associated with working directory
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 231
diff changeset
161 */
526
2f9ed6bcefa2 Initial support for Revert command with accompanying minor refactoring
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 525
diff changeset
162 public static String readBranch(Internals internalRepo) throws HgInvalidControlFileException {
527
47b7bedf0569 Tests for present HgCheckoutCommand functionality. Update branch information on checkout. Use UTF8 encoding for the branch file
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
163 File branchFile = internalRepo.getRepositoryFile(Branch);
284
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
164 String branch = HgRepository.DEFAULT_BRANCH_NAME;
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
165 if (branchFile.exists()) {
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
166 try {
527
47b7bedf0569 Tests for present HgCheckoutCommand functionality. Update branch information on checkout. Use UTF8 encoding for the branch file
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
167 // branch file is UTF-8 encoded, see http://mercurial.selenic.com/wiki/EncodingStrategy#UTF-8_strings
47b7bedf0569 Tests for present HgCheckoutCommand functionality. Update branch information on checkout. Use UTF8 encoding for the branch file
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
168 // shall not use system-default encoding (FileReader) when reading it!
47b7bedf0569 Tests for present HgCheckoutCommand functionality. Update branch information on checkout. Use UTF8 encoding for the branch file
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
169 // Perhaps, shall use EncodingHelper.fromBranch and InputStream instead, for uniformity?
47b7bedf0569 Tests for present HgCheckoutCommand functionality. Update branch information on checkout. Use UTF8 encoding for the branch file
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
170 // Since whole file is in UTF8, InputStreamReader is a convenience over InputStream,
47b7bedf0569 Tests for present HgCheckoutCommand functionality. Update branch information on checkout. Use UTF8 encoding for the branch file
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
171 // which we use elsewhere (together with EncodingHelper) - other files are usually a mix of binary data
47b7bedf0569 Tests for present HgCheckoutCommand functionality. Update branch information on checkout. Use UTF8 encoding for the branch file
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
172 // and encoded text (hence, InputStreamReader with charset is not an option there)
47b7bedf0569 Tests for present HgCheckoutCommand functionality. Update branch information on checkout. Use UTF8 encoding for the branch file
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 526
diff changeset
173 BufferedReader r = new BufferedReader(new InputStreamReader(new FileInputStream(branchFile), EncodingHelper.getUTF8()));
284
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
174 String b = r.readLine();
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
175 if (b != null) {
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
176 b = b.trim().intern();
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
177 }
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
178 branch = b == null || b.length() == 0 ? HgRepository.DEFAULT_BRANCH_NAME : b;
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
179 r.close();
348
a0864b2892cd Expose errors reading mercurial control files with exception
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 332
diff changeset
180 } catch (FileNotFoundException ex) {
501
d2f6ab541330 Change the way extensions are accessed (with ExtensionsManager now), add preliminary Rebase extension support
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 490
diff changeset
181 internalRepo.getSessionContext().getLog().dump(HgDirstate.class, Debug, ex, null); // log verbose debug, exception might be legal here
348
a0864b2892cd Expose errors reading mercurial control files with exception
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 332
diff changeset
182 // IGNORE
284
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
183 } catch (IOException ex) {
348
a0864b2892cd Expose errors reading mercurial control files with exception
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 332
diff changeset
184 throw new HgInvalidControlFileException("Error reading file with branch information", ex, branchFile);
284
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
185 }
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
186 }
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
187 return branch;
7232b94f2ae3 HgDirstate shall operate with Path instead of String for file names. Use of Pair instead of array of unspecified length for parents.
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 280
diff changeset
188 }
10
382cfe9463db Dirstate parsing. DataAccess refactored to allow reuse and control over constants
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
189 }