Mercurial > hg4j

annotate hg4j/src/main/java/org/tmatesoft/hg/internal/RevlogDump.java @ 213:6ec4af642ba8 gradle

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Project uses Gradle for build - actual changes
author Alexander Kitaev <kitaev@gmail.com>
date Tue, 10 May 2011 10:52:53 +0200
parents
children
rev   line source
213
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
1 /*
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
2 * Copyright (c) 2010-2011 TMate Software Ltd
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
3 *
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
4 * This program is free software; you can redistribute it and/or modify
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
5 * it under the terms of the GNU General Public License as published by
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
6 * the Free Software Foundation; version 2 of the License.
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
7 *
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
8 * This program is distributed in the hope that it will be useful,
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
11 * GNU General Public License for more details.
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
12 *
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
13 * For information on how to redistribute this software under
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
14 * the terms of a license other than GNU General Public License
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
15 * contact TMate Software at support@hg4j.com
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
16 */
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
17 package org.tmatesoft.hg.internal;
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
18
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
19 import java.io.BufferedInputStream;
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
20 import java.io.DataInput;
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
21 import java.io.DataInputStream;
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
22 import java.io.File;
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
23 import java.io.FileInputStream;
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
24 import java.math.BigInteger;
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
25 import java.util.zip.Inflater;
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
26
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
27 /**
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
28 * Utility to test/debug/troubleshoot
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
29 *
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
30 * @author Artem Tikhomirov
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
31 * @author TMate Software Ltd.
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
32 */
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
33 public class RevlogDump {
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
34
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
35 /**
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
36 * Takes 3 command line arguments -
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
37 * repository path,
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
38 * path to index file (i.e. store/data/hello.c.i) in the repository (relative)
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
39 * and "dumpData" whether to print actual content or just revlog headers
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
40 */
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
41 public static void main(String[] args) throws Exception {
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
42 String repo = "/temp/hg/hello/.hg/";
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
43 String filename = "store/00changelog.i";
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
44 // String filename = "store/data/hello.c.i";
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
45 // String filename = "store/data/docs/readme.i";
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
46 boolean dumpData = true;
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
47 if (args.length > 1) {
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
48 repo = args[0];
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
49 filename = args[1];
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
50 dumpData = args.length > 2 ? "dumpData".equals(args[2]) : false;
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
51 }
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
52 //
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
53 DataInputStream dis = new DataInputStream(new BufferedInputStream(new FileInputStream(new File(repo + filename))));
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
54 DataInput di = dis;
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
55 dis.mark(10);
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
56 int versionField = di.readInt();
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
57 dis.reset();
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
58 final int INLINEDATA = 1 << 16;
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
59
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
60 boolean inlineData = (versionField & INLINEDATA) != 0;
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
61 System.out.printf("%#8x, inline: %b\n", versionField, inlineData);
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
62 System.out.println("Index Offset Flags Packed Actual Base Rev Link Rev Parent1 Parent2 nodeid");
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
63 int entryCount = 0;
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
64 while (dis.available() > 0) {
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
65 long l = di.readLong();
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
66 long offset = l >>> 16;
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
67 int flags = (int) (l & 0X0FFFF);
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
68 int compressedLen = di.readInt();
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
69 int actualLen = di.readInt();
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
70 int baseRevision = di.readInt();
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
71 int linkRevision = di.readInt();
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
72 int parent1Revision = di.readInt();
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
73 int parent2Revision = di.readInt();
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
74 byte[] buf = new byte[32];
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
75 di.readFully(buf, 12, 20);
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
76 dis.skipBytes(12);
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
77 // CAN'T USE skip() here without extra precautions. E.g. I ran into situation when
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
78 // buffer was 8192 and BufferedInputStream was at position 8182 before attempt to skip(12).
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
79 // BIS silently skips available bytes and leaves me two extra bytes that ruin the rest of the code.
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
80 System.out.printf("%4d:%14d %6X %10d %10d %10d %10d %8d %8d %040x\n", entryCount, offset, flags, compressedLen, actualLen, baseRevision, linkRevision, parent1Revision, parent2Revision, new BigInteger(buf));
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
81 if (inlineData) {
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
82 String resultString;
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
83 byte[] data = new byte[compressedLen];
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
84 di.readFully(data);
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
85 if (data[0] == 0x78 /* 'x' */) {
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
86 Inflater zlib = new Inflater();
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
87 zlib.setInput(data, 0, compressedLen);
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
88 byte[] result = new byte[actualLen*2];
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
89 int resultLen = zlib.inflate(result);
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
90 zlib.end();
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
91 resultString = new String(result, 0, resultLen, "UTF-8");
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
92 } else if (data[0] == 0x75 /* 'u' */) {
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
93 resultString = new String(data, 1, data.length - 1, "UTF-8");
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
94 } else {
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
95 resultString = new String(data);
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
96 }
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
97 if (dumpData) {
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
98 System.out.println(resultString);
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
99 }
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
100 }
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
101 entryCount++;
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
102 }
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
103 dis.close();
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
104 //
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
105 }
6ec4af642ba8 Project uses Gradle for build - actual changes
Alexander Kitaev <kitaev@gmail.com>
parents:
diff changeset
106 }