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
|
// Copyright 2018 The Bazel Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.google.devtools.build.importdeps;
import static com.google.common.base.Preconditions.checkState;
import com.google.common.collect.ImmutableList;
import com.google.devtools.build.importdeps.AbstractClassEntryState.IncompleteState;
import com.google.devtools.build.importdeps.ResultCollector.MissingMember;
import com.google.devtools.build.lib.view.proto.Deps.Dependencies;
import com.google.devtools.build.lib.view.proto.Deps.Dependency;
import com.google.devtools.build.lib.view.proto.Deps.Dependency.Kind;
import java.io.Closeable;
import java.io.IOError;
import java.io.IOException;
import java.io.InputStream;
import java.nio.file.Path;
import java.util.stream.Collectors;
import java.util.zip.ZipFile;
import org.objectweb.asm.ClassReader;
/**
* Checker that checks the classes in the input jars have complete dependencies. If not, output the
* missing dependencies to a file.
*/
public final class ImportDepsChecker implements Closeable {
private final ClassCache classCache;
private final ResultCollector resultCollector;
private final ImmutableList<Path> inputJars;
public ImportDepsChecker(
ImmutableList<Path> bootclasspath,
ImmutableList<Path> classpath,
ImmutableList<Path> inputJars)
throws IOException {
this.classCache = new ClassCache(bootclasspath, classpath, inputJars);
this.resultCollector = new ResultCollector();
this.inputJars = inputJars;
}
/**
* Checks for dependency problems in the given input jars agains the classpath.
*
* @return {@literal true} for no problems, {@literal false} otherwise.
*/
public boolean check() throws IOException {
for (Path path : inputJars) {
try (ZipFile jarFile = new ZipFile(path.toFile())) {
jarFile
.stream()
.forEach(
entry -> {
String name = entry.getName();
if (!name.endsWith(".class")) {
return;
}
try (InputStream inputStream = jarFile.getInputStream(entry)) {
ClassReader reader = new ClassReader(inputStream);
DepsCheckerClassVisitor checker =
new DepsCheckerClassVisitor(classCache, resultCollector);
reader.accept(checker, ClassReader.SKIP_DEBUG | ClassReader.SKIP_FRAMES);
} catch (IOException e) {
throw new IOError(e);
} catch (RuntimeException e) {
System.err.printf(
"A runtime exception occurred when processing the class %s "
+ "in the zip file %s\n",
name, path);
throw e;
}
});
}
}
return resultCollector.isEmpty();
}
/** Emit the jdeps proto. The parameter ruleLabel is optional, indicated with the empty string. */
public Dependencies emitJdepsProto(String ruleLabel) {
Dependencies.Builder builder = Dependencies.newBuilder();
ImmutableList<Path> paths = classCache.collectUsedJarsInRegularClasspath();
paths.forEach(
path ->
builder.addDependency(
Dependency.newBuilder().setKind(Kind.EXPLICIT).setPath(path.toString()).build()));
return builder.setRuleLabel(ruleLabel).setSuccess(true).build();
}
private static final String INDENT = " ";
public String computeResultOutput() {
StringBuilder builder = new StringBuilder();
ImmutableList<String> missingClasses = resultCollector.getSortedMissingClassInternalNames();
for (String missing : missingClasses) {
builder.append("Missing ").append(missing.replace('/', '.')).append('\n');
}
ImmutableList<IncompleteState> incompleteClasses = resultCollector.getSortedIncompleteClasses();
for (IncompleteState incomplete : incompleteClasses) {
builder
.append("Incomplete ancestor classpath for ")
.append(incomplete.classInfo().get().internalName().replace('/', '.'))
.append('\n');
ImmutableList<String> failurePath = incomplete.getResolutionFailurePath();
checkState(!failurePath.isEmpty(), "The resolution failure path is empty. %s", failurePath);
builder
.append(INDENT)
.append("missing ancestor: ")
.append(failurePath.get(failurePath.size() - 1).replace('/', '.'))
.append('\n');
builder
.append(INDENT)
.append("resolution failure path: ")
.append(
failurePath
.stream()
.map(internalName -> internalName.replace('/', '.'))
.collect(Collectors.joining(" -> ")))
.append('\n');
}
ImmutableList<MissingMember> missingMembers = resultCollector.getSortedMissingMembers();
for (MissingMember missing : missingMembers) {
builder
.append("Missing member '")
.append(missing.memberName())
.append("' in class ")
.append(missing.owner().replace('/', '.'))
.append(" : name=")
.append(missing.memberName())
.append(", descriptor=")
.append(missing.descriptor())
.append('\n');
}
if (missingClasses.size() + incompleteClasses.size() + missingMembers.size() != 0) {
builder
.append("===Total===\n")
.append("missing=")
.append(missingClasses.size())
.append('\n')
.append("incomplete=")
.append(incompleteClasses.size())
.append('\n')
.append("missing_members=")
.append(missingMembers.size())
.append('\n');
}
return builder.toString();
}
@Override
public void close() throws IOException {
classCache.close();
}
}
|
