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
|
// Copyright 2014 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.rules.cpp;
import com.google.common.collect.ImmutableList;
import com.google.devtools.build.lib.actions.Action;
import com.google.devtools.build.lib.actions.Artifact;
import com.google.devtools.build.lib.actions.Root;
import com.google.devtools.build.lib.analysis.buildinfo.BuildInfoCollection;
import com.google.devtools.build.lib.analysis.buildinfo.BuildInfoFactory;
import com.google.devtools.build.lib.analysis.config.BuildConfiguration;
import com.google.devtools.build.lib.vfs.PathFragment;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
/**
* C++ build info creation - generates header files that contain the corresponding build-info data.
*/
public final class CppBuildInfo implements BuildInfoFactory {
public static final BuildInfoKey KEY = new BuildInfoKey("C++");
private static final PathFragment BUILD_INFO_NONVOLATILE_HEADER_NAME =
new PathFragment("build-info-nonvolatile.h");
private static final PathFragment BUILD_INFO_VOLATILE_HEADER_NAME =
new PathFragment("build-info-volatile.h");
// TODO(bazel-team): (2011) Get rid of the redacted build info. We should try to make
// the linkstamping process handle the case where those values are undefined.
private static final PathFragment BUILD_INFO_REDACTED_HEADER_NAME =
new PathFragment("build-info-redacted.h");
@Override
public BuildInfoCollection create(BuildInfoContext buildInfoContext, BuildConfiguration config,
Artifact buildInfo, Artifact buildChangelist) {
List<Action> actions = new ArrayList<>();
WriteBuildInfoHeaderAction redactedInfo = getHeader(buildInfoContext, config,
BUILD_INFO_REDACTED_HEADER_NAME,
Artifact.NO_ARTIFACTS, true, true);
WriteBuildInfoHeaderAction nonvolatileInfo = getHeader(buildInfoContext, config,
BUILD_INFO_NONVOLATILE_HEADER_NAME,
ImmutableList.of(buildInfo),
false, true);
WriteBuildInfoHeaderAction volatileInfo = getHeader(buildInfoContext, config,
BUILD_INFO_VOLATILE_HEADER_NAME,
ImmutableList.of(buildChangelist),
true, false);
actions.add(redactedInfo);
actions.add(nonvolatileInfo);
actions.add(volatileInfo);
return new BuildInfoCollection(actions,
ImmutableList.of(nonvolatileInfo.getPrimaryOutput(), volatileInfo.getPrimaryOutput()),
ImmutableList.of(redactedInfo.getPrimaryOutput()));
}
private WriteBuildInfoHeaderAction getHeader(BuildInfoContext buildInfoContext,
BuildConfiguration config, PathFragment headerName,
Collection<Artifact> inputs,
boolean writeVolatileInfo, boolean writeNonVolatileInfo) {
Root outputPath = config.getIncludeDirectory();
final Artifact header =
buildInfoContext.getBuildInfoArtifact(headerName, outputPath,
writeVolatileInfo && !inputs.isEmpty()
? BuildInfoType.NO_REBUILD : BuildInfoType.FORCE_REBUILD_IF_CHANGED);
return new WriteBuildInfoHeaderAction(
inputs, header, writeVolatileInfo, writeNonVolatileInfo);
}
@Override
public BuildInfoKey getKey() {
return KEY;
}
@Override
public boolean isEnabled(BuildConfiguration config) {
return config.hasFragment(CppConfiguration.class);
}
}
|
