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
|
// 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.analysis.extra;
import com.google.common.base.Preconditions;
import com.google.common.collect.ImmutableList;
import com.google.devtools.build.lib.actions.Action;
import com.google.devtools.build.lib.actions.ActionExecutionContext;
import com.google.devtools.build.lib.actions.ActionKeyContext;
import com.google.devtools.build.lib.actions.ActionOwner;
import com.google.devtools.build.lib.actions.Artifact;
import com.google.devtools.build.lib.actions.CommandLineExpansionException;
import com.google.devtools.build.lib.actions.ExecException;
import com.google.devtools.build.lib.actions.UserExecException;
import com.google.devtools.build.lib.analysis.actions.AbstractFileWriteAction;
import com.google.devtools.build.lib.analysis.actions.ProtoDeterministicWriter;
import com.google.devtools.build.lib.concurrent.ThreadSafety.Immutable;
import com.google.devtools.build.lib.skyframe.serialization.autocodec.AutoCodec;
import com.google.devtools.build.lib.util.Fingerprint;
/**
* Requests extra action info from shadowed action and writes it, in protocol buffer format, to an
* .xa file for use by an extra action. This can only be done at execution time because actions may
* store information only known at execution time into the protocol buffer.
*/
@AutoCodec
@Immutable // if shadowedAction is immutable
public final class ExtraActionInfoFileWriteAction extends AbstractFileWriteAction {
private static final String UUID = "1759f81d-e72e-477d-b182-c4532bdbaeeb";
private final Action shadowedAction;
ExtraActionInfoFileWriteAction(ActionOwner owner, Artifact primaryOutput, Action shadowedAction) {
super(
owner,
shadowedAction.discoversInputs() ? shadowedAction.getOutputs() : ImmutableList.of(),
primaryOutput,
/*makeExecutable=*/ false);
this.shadowedAction = Preconditions.checkNotNull(shadowedAction, primaryOutput);
}
@Override
public DeterministicWriter newDeterministicWriter(ActionExecutionContext ctx)
throws ExecException {
try {
return new ProtoDeterministicWriter(
shadowedAction.getExtraActionInfo(ctx.getActionKeyContext()).build());
} catch (CommandLineExpansionException e) {
throw new UserExecException(e);
}
}
@Override
protected void computeKey(ActionKeyContext actionKeyContext, Fingerprint fp)
throws CommandLineExpansionException {
fp.addString(UUID);
fp.addString(shadowedAction.getKey(actionKeyContext));
fp.addBytes(shadowedAction.getExtraActionInfo(actionKeyContext).build().toByteArray());
}
}
|
