1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
|
/*
* Copyright (C) 2017, Google Inc. and others
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0 which is available at
* https://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package org.eclipse.jgit.pgm.debug;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Random;
import org.eclipse.jgit.internal.storage.io.BlockSource;
import org.eclipse.jgit.internal.storage.reftable.RefCursor;
import org.eclipse.jgit.internal.storage.reftable.ReftableReader;
import org.eclipse.jgit.lib.AnyObjectId;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.RefComparator;
import org.eclipse.jgit.lib.TextProgressMonitor;
import org.eclipse.jgit.pgm.Command;
import org.eclipse.jgit.pgm.TextBuiltin;
import org.kohsuke.args4j.Argument;
@Command
class VerifyReftable extends TextBuiltin {
private static final long SEED1 = 0xaba8bb4de4caf86cL;
private static final long SEED2 = 0x28bb5c25ad43ecb5L;
@Argument(index = 0)
private String lsRemotePath;
@Argument(index = 1)
private String reftablePath;
/** {@inheritDoc} */
@Override
protected void run() throws Exception {
List<Ref> refs = WriteReftable.readRefs(lsRemotePath);
try (FileInputStream in = new FileInputStream(reftablePath);
BlockSource src = BlockSource.from(in);
ReftableReader reader = new ReftableReader(src)) {
scan(refs, reader);
seek(refs, reader);
byId(refs, reader);
}
}
@SuppressWarnings("nls")
private void scan(List<Ref> refs, ReftableReader reader)
throws IOException {
errw.print(String.format("%-20s", "sequential scan..."));
errw.flush();
try (RefCursor rc = reader.allRefs()) {
for (Ref exp : refs) {
verify(exp, rc);
}
if (rc.next()) {
throw die("expected end of table");
}
}
errw.println(" OK");
}
@SuppressWarnings("nls")
private void seek(List<Ref> refs, ReftableReader reader)
throws IOException {
List<Ref> rnd = new ArrayList<>(refs);
Collections.shuffle(rnd, new Random(SEED1));
TextProgressMonitor pm = new TextProgressMonitor(errw);
pm.beginTask("random seek", rnd.size());
for (Ref exp : rnd) {
try (RefCursor rc = reader.seekRef(exp.getName())) {
verify(exp, rc);
if (rc.next()) {
throw die("should not have ref after " + exp.getName());
}
}
pm.update(1);
}
pm.endTask();
}
@SuppressWarnings("nls")
private void byId(List<Ref> refs, ReftableReader reader)
throws IOException {
Map<ObjectId, List<Ref>> want = groupById(refs);
List<List<Ref>> rnd = new ArrayList<>(want.values());
Collections.shuffle(rnd, new Random(SEED2));
TextProgressMonitor pm = new TextProgressMonitor(errw);
pm.beginTask("byObjectId", rnd.size());
for (List<Ref> exp : rnd) {
Collections.sort(exp, RefComparator.INSTANCE);
ObjectId id = exp.get(0).getObjectId();
try (RefCursor rc = reader.byObjectId(id)) {
for (Ref r : exp) {
verify(r, rc);
}
}
pm.update(1);
}
pm.endTask();
}
private static Map<ObjectId, List<Ref>> groupById(List<Ref> refs) {
Map<ObjectId, List<Ref>> m = new HashMap<>();
for (Ref r : refs) {
ObjectId id = r.getObjectId();
if (id != null) {
List<Ref> c = m.get(id);
if (c == null) {
c = new ArrayList<>(2);
m.put(id, c);
}
c.add(r);
}
}
return m;
}
@SuppressWarnings("nls")
private void verify(Ref exp, RefCursor rc) throws IOException {
if (!rc.next()) {
throw die("ended before " + exp.getName());
}
Ref act = rc.getRef();
if (!exp.getName().equals(act.getName())) {
throw die(String.format("expected %s, found %s",
exp.getName(),
act.getName()));
}
if (exp.isSymbolic()) {
if (!act.isSymbolic()) {
throw die("expected " + act.getName() + " to be symbolic");
}
if (!exp.getTarget().getName().equals(act.getTarget().getName())) {
throw die(String.format("expected %s to be %s, found %s",
exp.getName(),
exp.getLeaf().getName(),
act.getLeaf().getName()));
}
return;
}
if (!AnyObjectId.isEqual(exp.getObjectId(), act.getObjectId())) {
throw die(String.format("expected %s to be %s, found %s",
exp.getName(),
id(exp.getObjectId()),
id(act.getObjectId())));
}
if (exp.getPeeledObjectId() != null
&& !AnyObjectId.isEqual(exp.getPeeledObjectId(),
act.getPeeledObjectId())) {
throw die(String.format("expected %s to be %s, found %s",
exp.getName(),
id(exp.getPeeledObjectId()),
id(act.getPeeledObjectId())));
}
}
@SuppressWarnings("nls")
private static String id(ObjectId id) {
return id != null ? id.name() : "<null>";
}
}
|
