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// 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.analysis;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Iterables;
import com.google.devtools.build.lib.actions.Artifact;
import com.google.devtools.build.lib.actions.EventReportingArtifacts;
import com.google.devtools.build.lib.analysis.TopLevelArtifactHelper.ArtifactsInOutputGroup;
import com.google.devtools.build.lib.buildeventstream.ArtifactGroupNamer;
import com.google.devtools.build.lib.buildeventstream.BuildEventConverters;
import com.google.devtools.build.lib.buildeventstream.BuildEventId;
import com.google.devtools.build.lib.buildeventstream.BuildEventStreamProtos;
import com.google.devtools.build.lib.buildeventstream.BuildEventStreamProtos.File;
import com.google.devtools.build.lib.buildeventstream.BuildEventStreamProtos.OutputGroup;
import com.google.devtools.build.lib.buildeventstream.BuildEventWithOrderConstraint;
import com.google.devtools.build.lib.buildeventstream.GenericBuildEvent;
import com.google.devtools.build.lib.causes.Cause;
import com.google.devtools.build.lib.cmdline.Label;
import com.google.devtools.build.lib.collect.nestedset.NestedSet;
import com.google.devtools.build.lib.collect.nestedset.NestedSetBuilder;
import com.google.devtools.build.lib.collect.nestedset.NestedSetView;
import com.google.devtools.build.lib.collect.nestedset.Order;
import com.google.devtools.build.lib.packages.AttributeMap;
import com.google.devtools.build.lib.rules.test.TestProvider;
import com.google.devtools.build.lib.syntax.Type;
import com.google.devtools.build.lib.util.Preconditions;
import com.google.devtools.build.skyframe.SkyValue;
import java.util.Collection;
/** This event is fired as soon as a target is either built or fails. */
public final class TargetCompleteEvent
implements SkyValue, BuildEventWithOrderConstraint, EventReportingArtifacts {
private final ConfiguredTarget target;
private final NestedSet<Cause> rootCauses;
private final Collection<BuildEventId> postedAfter;
private final Iterable<ArtifactsInOutputGroup> outputs;
private final boolean isTest;
private TargetCompleteEvent(
ConfiguredTarget target,
NestedSet<Cause> rootCauses,
Iterable<ArtifactsInOutputGroup> outputs,
boolean isTest) {
this.target = target;
this.rootCauses =
(rootCauses == null) ? NestedSetBuilder.<Cause>emptySet(Order.STABLE_ORDER) : rootCauses;
ImmutableList.Builder postedAfterBuilder = ImmutableList.builder();
for (Cause cause : getRootCauses()) {
postedAfterBuilder.add(BuildEventId.fromCause(cause));
}
this.postedAfter = postedAfterBuilder.build();
this.outputs = outputs;
this.isTest = isTest;
}
/** Construct a successful target completion event. */
public static TargetCompleteEvent createSuccessfulTarget(
ConfiguredTarget ct, NestedSet<ArtifactsInOutputGroup> outputs) {
return new TargetCompleteEvent(ct, null, outputs, false);
}
/** Construct a successful target completion event for a target that will be tested. */
public static TargetCompleteEvent createSuccessfulTestTarget(ConfiguredTarget ct) {
return new TargetCompleteEvent(ct, null, ImmutableList.<ArtifactsInOutputGroup>of(), true);
}
/**
* Construct a target completion event for a failed target, with the given non-empty root causes.
*/
public static TargetCompleteEvent createFailed(ConfiguredTarget ct, NestedSet<Cause> rootCauses) {
Preconditions.checkArgument(!Iterables.isEmpty(rootCauses));
return new TargetCompleteEvent(
ct, rootCauses, ImmutableList.<ArtifactsInOutputGroup>of(), false);
}
/**
* Returns the target associated with the event.
*/
public ConfiguredTarget getTarget() {
return target;
}
/**
* Determines whether the target has failed or succeeded.
*/
public boolean failed() {
return !rootCauses.isEmpty();
}
/** Get the root causes of the target. May be empty. */
public Iterable<Cause> getRootCauses() {
return rootCauses;
}
@Override
public BuildEventId getEventId() {
return BuildEventId.targetCompleted(getTarget().getLabel());
}
@Override
public Collection<BuildEventId> getChildrenEvents() {
ImmutableList.Builder childrenBuilder = ImmutableList.builder();
for (Cause cause : getRootCauses()) {
childrenBuilder.add(BuildEventId.fromCause(cause));
}
if (isTest) {
// For tests, announce all the test actions that will minimally happen (except for
// interruption). If after the result of a test action another attempt is necessary,
// it will be announced with the action that made the new attempt necessary.
Label label = target.getTarget().getLabel();
TestProvider.TestParams params = target.getProvider(TestProvider.class).getTestParams();
for (int run = 0; run < Math.max(params.getRuns(), 1); run++) {
for (int shard = 0; shard < Math.max(params.getShards(), 1); shard++) {
childrenBuilder.add(BuildEventId.testResult(label, run, shard));
}
}
childrenBuilder.add(BuildEventId.testSummary(label));
}
return childrenBuilder.build();
}
@Override
public BuildEventStreamProtos.BuildEvent asStreamProto(BuildEventConverters converters) {
BuildEventStreamProtos.TargetComplete.Builder builder =
BuildEventStreamProtos.TargetComplete.newBuilder();
builder.setSuccess(!failed());
builder.setTargetKind(target.getTarget().getTargetKind());
builder.addAllTag(getTags());
builder.addAllOutputGroup(getOutputFilesByGroup(converters.artifactGroupNamer()));
// TODO(aehlig): remove direct reporting of artifacts as soon as clients no longer
// need it.
for (ArtifactsInOutputGroup group : outputs) {
if (group.areImportant()) {
for (Artifact artifact : group.getArtifacts()) {
String name = artifact.getFilename();
String uri = converters.pathConverter().apply(artifact.getPath());
builder.addImportantOutput(File.newBuilder().setName(name).setUri(uri).build());
}
}
}
BuildEventStreamProtos.TargetComplete complete = builder.build();
return GenericBuildEvent.protoChaining(this).setCompleted(complete).build();
}
@Override
public Collection<BuildEventId> postedAfter() {
return postedAfter;
}
@Override
public Collection<NestedSet<Artifact>> reportedArtifacts() {
ImmutableSet.Builder<NestedSet<Artifact>> builder =
new ImmutableSet.Builder<NestedSet<Artifact>>();
for (ArtifactsInOutputGroup artifactsInGroup : outputs) {
builder.add(artifactsInGroup.getArtifacts());
}
return builder.build();
}
private Iterable<String> getTags() {
// We are only interested in targets that are rules.
if (!(target instanceof RuleConfiguredTarget)) {
return ImmutableList.<String>of();
}
AttributeMap attributes = ConfiguredAttributeMapper.of((RuleConfiguredTarget) target);
// Every rule (implicitly) has a "tags" attribute.
return attributes.get("tags", Type.STRING_LIST);
}
private Iterable<OutputGroup> getOutputFilesByGroup(ArtifactGroupNamer namer) {
ImmutableList.Builder<OutputGroup> groups = ImmutableList.builder();
for (ArtifactsInOutputGroup artifactsInOutputGroup : outputs) {
OutputGroup.Builder groupBuilder = OutputGroup.newBuilder();
groupBuilder.setName(artifactsInOutputGroup.getOutputGroup());
groupBuilder.addFileSets(
namer.apply(
(new NestedSetView<Artifact>(artifactsInOutputGroup.getArtifacts())).identifier()));
groups.add(groupBuilder.build());
}
return groups.build();
}
}
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