Mercurial > jhg

annotate src/org/tmatesoft/hg/internal/WorkingCopyContent.java @ 700:6e7786086f77 v1.2m2

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Update gradle build to respect new dependency from trilead
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Thu, 08 Aug 2013 21:04:52 +0200
parents 6526d8adbc0f
children
rev   line source
618
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
1 /*
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
2 * Copyright (c) 2013 TMate Software Ltd
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
3 *
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
4 * This program is free software; you can redistribute it and/or modify
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
5 * it under the terms of the GNU General Public License as published by
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
6 * the Free Software Foundation; version 2 of the License.
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
7 *
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
8 * This program is distributed in the hope that it will be useful,
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
11 * GNU General Public License for more details.
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
12 *
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
13 * For information on how to redistribute this software under
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
14 * the terms of a license other than GNU General Public License
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
15 * contact TMate Software at support@hg4j.com
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
16 */
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
17 package org.tmatesoft.hg.internal;
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
18
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
19 import java.io.File;
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
20 import java.io.IOException;
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
21 import java.nio.ByteBuffer;
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
22
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
23 import org.tmatesoft.hg.core.HgCommitCommand;
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
24 import org.tmatesoft.hg.core.HgIOException;
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
25 import org.tmatesoft.hg.repo.HgDataFile;
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
26 import org.tmatesoft.hg.repo.HgInvalidFileException;
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
27 import org.tmatesoft.hg.repo.HgInvalidStateException;
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
28 import org.tmatesoft.hg.repo.HgRepository;
628
6526d8adbc0f Explicit HgRuntimeException to facilitate easy switch from runtime to checked exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 622
diff changeset
29 import org.tmatesoft.hg.repo.HgRuntimeException;
618
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
30 import org.tmatesoft.hg.util.ByteChannel;
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
31 import org.tmatesoft.hg.util.CancelledException;
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
32
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
33 /**
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
34 * Access content of the working copy. The difference with {@link FileContentSupplier} is that this one doesn't need {@link File}
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
35 * in the working directory. However, provided this class is used from {@link HgCommitCommand} when "modified" file was detected,
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
36 * it's odd to expect no file in the working dir.
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
37 *
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
38 * @author Artem Tikhomirov
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
39 * @author TMate Software Ltd.
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
40 */
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
41 public class WorkingCopyContent implements DataSerializer.DataSource {
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
42 private final HgDataFile file;
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
43
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
44 public WorkingCopyContent(HgDataFile dataFile) {
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
45 file = dataFile;
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
46 if (!dataFile.exists()) {
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
47 throw new IllegalArgumentException();
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
48 }
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
49 }
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
50
628
6526d8adbc0f Explicit HgRuntimeException to facilitate easy switch from runtime to checked exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 622
diff changeset
51 public void serialize(final DataSerializer out) throws HgIOException, HgRuntimeException {
618
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
52 final HgIOException failure[] = new HgIOException[1];
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
53 try {
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
54 // TODO #workingCopy API is very limiting, CancelledException is inconvenient,
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
55 // and absence of HgIOException is very uncomfortable
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
56 file.workingCopy(new ByteChannel() {
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
57
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
58 public int write(ByteBuffer buffer) throws IOException {
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
59 try {
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
60 if (buffer.hasArray()) {
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
61 out.write(buffer.array(), buffer.position(), buffer.remaining());
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
62 }
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
63 int rv = buffer.remaining();
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
64 buffer.position(buffer.limit()); // pretend we've consumed the data
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
65 return rv;
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
66 } catch (HgIOException ex) {
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
67 failure[0] = ex;
622
4e6179bde4fc Update to comply with Java 1.5 target
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 618
diff changeset
68 IOException e = new IOException();
4e6179bde4fc Update to comply with Java 1.5 target
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 618
diff changeset
69 ex.initCause(ex); // XXX Java 1.5
4e6179bde4fc Update to comply with Java 1.5 target
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 618
diff changeset
70 throw e;
618
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
71 }
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
72 }
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
73 });
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
74 } catch (HgInvalidFileException ex) {
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
75 if (failure[0] != null) {
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
76 throw failure[0];
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
77 }
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
78 throw new HgIOException("Write failure", ex, new File(file.getRepo().getWorkingDir(), file.getPath().toString()));
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
79 } catch (CancelledException ex) {
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
80 throw new HgInvalidStateException("Our channel doesn't cancel here");
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
81 }
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
82 }
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
83
628
6526d8adbc0f Explicit HgRuntimeException to facilitate easy switch from runtime to checked exceptions
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 622
diff changeset
84 public int serializeLength() throws HgRuntimeException {
618
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
85 return file.getLength(HgRepository.WORKING_COPY);
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
86 }
7c0d2ce340b8 Refactor approach how content finds it way down to a commit revision
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
87 }