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
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
|
// Copyright 2015 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.lib.bazel.repository;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.devtools.build.lib.analysis.BlazeDirectories;
import com.google.devtools.build.lib.analysis.RuleDefinition;
import com.google.devtools.build.lib.bazel.rules.workspace.MavenServerRule;
import com.google.devtools.build.lib.packages.AggregatingAttributeMapper;
import com.google.devtools.build.lib.packages.Package;
import com.google.devtools.build.lib.packages.Rule;
import com.google.devtools.build.lib.skyframe.FileValue;
import com.google.devtools.build.lib.syntax.Type;
import com.google.devtools.build.lib.vfs.PathFragment;
import com.google.devtools.build.lib.vfs.RootedPath;
import com.google.devtools.build.skyframe.SkyFunctionException.Transience;
import com.google.devtools.build.skyframe.SkyFunctionName;
import com.google.devtools.build.skyframe.SkyKey;
import com.google.devtools.build.skyframe.SkyValue;
import org.apache.maven.settings.Server;
import org.apache.maven.settings.Settings;
import org.apache.maven.settings.building.DefaultSettingsBuilder;
import org.apache.maven.settings.building.DefaultSettingsBuilderFactory;
import org.apache.maven.settings.building.DefaultSettingsBuildingRequest;
import org.apache.maven.settings.building.SettingsBuildingException;
import org.apache.maven.settings.building.SettingsBuildingResult;
import java.io.IOException;
import java.util.Arrays;
import java.util.Map;
import javax.annotation.Nullable;
/**
* Implementation of maven_repository.
*/
public class MavenServerFunction extends RepositoryFunction {
public static final SkyFunctionName NAME = SkyFunctionName.create("MAVEN_SERVER_FUNCTION");
private static final String USER_KEY = "user";
private static final String SYSTEM_KEY = "system";
public MavenServerFunction(BlazeDirectories directories) {
setDirectories(directories);
}
@Nullable
@Override
public SkyValue compute(SkyKey skyKey, Environment env) throws RepositoryFunctionException {
String repository = skyKey.argument().toString();
Package externalPackage = RepositoryFunction.getExternalPackage(env);
if (externalPackage == null) {
return null;
}
Rule repositoryRule = externalPackage.getRule(repository);
String serverName;
String url;
Map<String, FileValue> settingsFiles;
boolean foundRepoRule = repositoryRule != null
&& repositoryRule.getRuleClass().equals(MavenServerRule.NAME);
if (!foundRepoRule) {
if (repository.equals(MavenServerValue.DEFAULT_ID)) {
settingsFiles = getDefaultSettingsFile(env);
serverName = MavenServerValue.DEFAULT_ID;
url = MavenConnector.getMavenCentralRemote().getUrl();
} else {
throw new RepositoryFunctionException(
new IOException("Could not find maven repository " + repository),
Transience.TRANSIENT);
}
} else {
AggregatingAttributeMapper mapper = AggregatingAttributeMapper.of(repositoryRule);
serverName = repositoryRule.getName();
url = mapper.get("url", Type.STRING);
if (!mapper.has("settings_file", Type.STRING)
|| mapper.get("settings_file", Type.STRING).isEmpty()) {
settingsFiles = getDefaultSettingsFile(env);
} else {
PathFragment settingsFilePath = new PathFragment(mapper.get("settings_file", Type.STRING));
RootedPath settingsPath = RootedPath.toRootedPath(
getWorkspace().getRelative(settingsFilePath), PathFragment.EMPTY_FRAGMENT);
FileValue fileValue = (FileValue) env.getValue(FileValue.key(settingsPath));
if (fileValue == null) {
return null;
}
if (!fileValue.exists()) {
throw new RepositoryFunctionException(
new IOException("Could not find settings file " + settingsPath),
Transience.TRANSIENT);
}
settingsFiles = ImmutableMap.<String, FileValue>builder().put(
USER_KEY, fileValue).build();
}
}
if (settingsFiles == null) {
return null;
}
if (settingsFiles.isEmpty()) {
return new MavenServerValue(serverName, url, new Server());
}
DefaultSettingsBuildingRequest request = new DefaultSettingsBuildingRequest();
if (settingsFiles.containsKey(SYSTEM_KEY)) {
request.setGlobalSettingsFile(
settingsFiles.get(SYSTEM_KEY).realRootedPath().asPath().getPathFile());
}
if (settingsFiles.containsKey(USER_KEY)) {
request.setUserSettingsFile(
settingsFiles.get(USER_KEY).realRootedPath().asPath().getPathFile());
}
DefaultSettingsBuilder builder = (new DefaultSettingsBuilderFactory()).newInstance();
SettingsBuildingResult result;
try {
result = builder.build(request);
} catch (SettingsBuildingException e) {
throw new RepositoryFunctionException(
new IOException("Error parsing settings files: " + e.getMessage()),
Transience.TRANSIENT);
}
if (!result.getProblems().isEmpty()) {
throw new RepositoryFunctionException(
new IOException("Errors interpreting settings file: "
+ Arrays.toString(result.getProblems().toArray())), Transience.PERSISTENT);
}
Settings settings = result.getEffectiveSettings();
Server server = settings.getServer(serverName);
server = server == null ? new Server() : server;
return new MavenServerValue(serverName, url, server);
}
private Map<String, FileValue> getDefaultSettingsFile(Environment env) {
// The system settings file is at $M2_HOME/conf/settings.xml.
String m2Home = System.getenv("M2_HOME");
ImmutableList.Builder<SkyKey> settingsFilesBuilder = ImmutableList.builder();
SkyKey systemKey = null;
if (m2Home != null) {
PathFragment mavenInstallSettings = new PathFragment(m2Home).getRelative("conf/settings.xml");
systemKey = FileValue.key(
RootedPath.toRootedPath(getWorkspace().getRelative(mavenInstallSettings),
PathFragment.EMPTY_FRAGMENT));
settingsFilesBuilder.add(systemKey);
}
// The user settings file is at $HOME/.m2/settings.xml.
String userHome = System.getenv("HOME");
SkyKey userKey = null;
if (userHome != null) {
PathFragment userSettings = new PathFragment(userHome).getRelative(".m2/settings.xml");
userKey = FileValue.key(RootedPath.toRootedPath(getWorkspace().getRelative(userSettings),
PathFragment.EMPTY_FRAGMENT));
settingsFilesBuilder.add(userKey);
}
ImmutableList settingsFiles = settingsFilesBuilder.build();
if (settingsFiles.isEmpty()) {
return ImmutableMap.of();
}
Map<SkyKey, SkyValue> values = env.getValues(settingsFilesBuilder.build());
ImmutableMap.Builder<String, FileValue> settingsBuilder = ImmutableMap.builder();
for (Map.Entry<SkyKey, SkyValue> entry : values.entrySet()) {
if (entry.getValue() == null) {
return null;
}
if (systemKey != null && systemKey.equals(entry.getKey())) {
settingsBuilder.put(SYSTEM_KEY, (FileValue) entry.getValue());
} else if (userKey != null && userKey.equals(entry.getKey())) {
settingsBuilder.put(USER_KEY, (FileValue) entry.getValue());
}
}
return settingsBuilder.build();
}
@Override
public SkyFunctionName getSkyFunctionName() {
return NAME;
}
@Override
public Class<? extends RuleDefinition> getRuleDefinition() {
return MavenServerRule.class;
}
}
|
