Mercurial > jhg

annotate src/com/tmate/hgkit/ll/HgManifest.java @ 19:40532cdc92fc

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Inspector (visitor) for manifest
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Tue, 04 Jan 2011 01:01:39 +0100
parents 254078595653
children 11cfabe692b3
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 /*
19
40532cdc92fc Inspector (visitor) for manifest
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 16
diff changeset
2 * Copyright (c) 2010, 2011 Artem Tikhomirov
2
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
3 */
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
4 package com.tmate.hgkit.ll;
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
5
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
6 /**
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
7 *
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
8 * @author artem
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
9 */
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
10 public class HgManifest extends Revlog {
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
11
13
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
12 private final RevlogStream content;
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
13
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
14 /*package-local*/ HgManifest(HgRepository hgRepo, RevlogStream content) {
2
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
15 super(hgRepo);
13
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
16 this.content = content;
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
17 }
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
18
19
40532cdc92fc Inspector (visitor) for manifest
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 16
diff changeset
19 public void walk(int start, int end, final Inspector inspector) {
13
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
20 Revlog.Inspector insp = new Revlog.Inspector() {
19
40532cdc92fc Inspector (visitor) for manifest
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 16
diff changeset
21
40532cdc92fc Inspector (visitor) for manifest
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 16
diff changeset
22 private boolean gtg = true; // good to go
40532cdc92fc Inspector (visitor) for manifest
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 16
diff changeset
23
13
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
24 public void next(int revisionNumber, int actualLen, int baseRevision, int linkRevision, int parent1Revision, int parent2Revision, byte[] nodeid, byte[] data) {
19
40532cdc92fc Inspector (visitor) for manifest
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 16
diff changeset
25 if (!gtg) {
40532cdc92fc Inspector (visitor) for manifest
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 16
diff changeset
26 return;
40532cdc92fc Inspector (visitor) for manifest
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 16
diff changeset
27 }
40532cdc92fc Inspector (visitor) for manifest
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 16
diff changeset
28 gtg = gtg && inspector.begin(revisionNumber, new Nodeid(nodeid));
13
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
29 int i;
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
30 String fname = null;
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
31 String flags = null;
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
32 Nodeid nid = null;
19
40532cdc92fc Inspector (visitor) for manifest
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 16
diff changeset
33 for (i = 0; gtg && i < actualLen; i++) {
13
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
34 int x = i;
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
35 for( ; data[i] != '\n' && i < actualLen; i++) {
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
36 if (fname == null && data[i] == 0) {
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
37 fname = new String(data, x, i - x);
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
38 x = i+1;
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
39 }
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
40 }
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
41 if (i < actualLen) {
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
42 assert data[i] == '\n';
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
43 int nodeidLen = i - x < 40 ? i-x : 40;
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
44 nid = Nodeid.fromAscii(data, x, nodeidLen);
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
45 if (nodeidLen + x < i) {
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
46 // 'x' and 'l' for executable bits and symlinks?
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
47 // hg --debug manifest shows 644 for each regular file in my repo
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
48 flags = new String(data, x + nodeidLen, i-x-nodeidLen);
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
49 }
19
40532cdc92fc Inspector (visitor) for manifest
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 16
diff changeset
50 gtg = gtg && inspector.next(nid, fname, flags);
40532cdc92fc Inspector (visitor) for manifest
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 16
diff changeset
51
13
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
52 }
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
53 nid = null;
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
54 fname = flags = null;
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
55 }
19
40532cdc92fc Inspector (visitor) for manifest
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 16
diff changeset
56 gtg = gtg && inspector.end(revisionNumber);
13
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
57 }
df8c67f3006a Basic manifest parsing to analyze what's in there
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 2
diff changeset
58 };
19
40532cdc92fc Inspector (visitor) for manifest
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 16
diff changeset
59 content.iterate(start, end, true, insp);
40532cdc92fc Inspector (visitor) for manifest
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 16
diff changeset
60 }
40532cdc92fc Inspector (visitor) for manifest
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 16
diff changeset
61
40532cdc92fc Inspector (visitor) for manifest
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 16
diff changeset
62 public interface Inspector {
40532cdc92fc Inspector (visitor) for manifest
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 16
diff changeset
63 boolean begin(int revision, Nodeid nid);
40532cdc92fc Inspector (visitor) for manifest
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 16
diff changeset
64 boolean next(Nodeid nid, String fname, String flags);
40532cdc92fc Inspector (visitor) for manifest
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents: 16
diff changeset
65 boolean end(int revision);
2
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
66 }
08db726a0fb7 Shaping out low-level Hg structures
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
diff changeset
67 }