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// Copyright 2017 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.buildeventservice;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Preconditions;
import com.google.common.base.Strings;
import com.google.common.base.Supplier;
import com.google.common.base.Suppliers;
import com.google.common.base.Throwables;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
import com.google.devtools.build.lib.authandtls.AuthAndTLSOptions;
import com.google.devtools.build.lib.buildeventservice.client.BuildEventServiceClient;
import com.google.devtools.build.lib.buildeventstream.BuildEventArtifactUploader;
import com.google.devtools.build.lib.buildeventstream.BuildEventProtocolOptions;
import com.google.devtools.build.lib.buildeventstream.BuildEventStreamProtos.Aborted.AbortReason;
import com.google.devtools.build.lib.buildeventstream.BuildEventTransport;
import com.google.devtools.build.lib.buildeventstream.LocalFilesArtifactUploader;
import com.google.devtools.build.lib.buildeventstream.transports.BinaryFormatFileTransport;
import com.google.devtools.build.lib.buildeventstream.transports.BuildEventStreamOptions;
import com.google.devtools.build.lib.buildeventstream.transports.JsonFormatFileTransport;
import com.google.devtools.build.lib.buildeventstream.transports.TextFormatFileTransport;
import com.google.devtools.build.lib.events.Event;
import com.google.devtools.build.lib.events.EventHandler;
import com.google.devtools.build.lib.runtime.BlazeModule;
import com.google.devtools.build.lib.runtime.BuildEventStreamer;
import com.google.devtools.build.lib.runtime.CommandEnvironment;
import com.google.devtools.build.lib.runtime.CountingArtifactGroupNamer;
import com.google.devtools.build.lib.runtime.SynchronizedOutputStream;
import com.google.devtools.build.lib.util.AbruptExitException;
import com.google.devtools.build.lib.util.ExitCode;
import com.google.devtools.build.lib.util.LoggingUtil;
import com.google.devtools.build.lib.util.io.OutErr;
import com.google.devtools.common.options.OptionsBase;
import com.google.devtools.common.options.OptionsParsingException;
import com.google.devtools.common.options.OptionsParsingResult;
import java.io.BufferedOutputStream;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.Set;
import java.util.function.Consumer;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.annotation.Nullable;
/**
* Module responsible for the Build Event Transport (BEP) and Build Event Service (BES)
* functionality.
*/
public abstract class BuildEventServiceModule<BESOptionsT extends BuildEventServiceOptions>
extends BlazeModule {
private static final Logger logger = Logger.getLogger(BuildEventServiceModule.class.getName());
private OutErr outErr;
private BuildEventStreamer streamer;
private BESOptionsT besOptions;
private BuildEventProtocolOptions bepOptions;
private AuthAndTLSOptions authTlsOptions;
private BuildEventStreamOptions besStreamOptions;
private ImmutableSet<BuildEventTransport> bepTransports;
/** Whether an error in the Build Event Service upload causes the build to fail. */
protected boolean errorsShouldFailTheBuild() {
return true;
}
/** Report errors in the command line and possibly fail the build. */
protected void reportError(
EventHandler commandLineReporter,
ModuleEnvironment moduleEnvironment,
String msg,
Exception exception,
ExitCode exitCode) {
// Don't hide unchecked exceptions as part of the error reporting.
Throwables.throwIfUnchecked(exception);
logger.log(Level.SEVERE, msg, exception);
AbruptExitException abruptException = new AbruptExitException(msg, exitCode, exception);
commandLineReporter.handle(Event.error(exception.getMessage()));
moduleEnvironment.exit(abruptException);
}
@Override
public Iterable<Class<? extends OptionsBase>> getCommonCommandOptions() {
return ImmutableList.of(
optionsClass(),
AuthAndTLSOptions.class,
BuildEventStreamOptions.class,
BuildEventProtocolOptions.class);
}
@Override
public void beforeCommand(CommandEnvironment cmdEnv) {
// Reset to null in case afterCommand was not called.
// TODO(lpino): Remove this statement once {@link BlazeModule#afterCommmand()} is guaranteed
// to be executed for every invocation.
this.outErr = null;
OptionsParsingResult parsingResult = cmdEnv.getOptions();
this.besOptions = Preconditions.checkNotNull(parsingResult.getOptions(optionsClass()));
this.bepOptions =
Preconditions.checkNotNull(parsingResult.getOptions(BuildEventProtocolOptions.class));
this.authTlsOptions =
Preconditions.checkNotNull(parsingResult.getOptions(AuthAndTLSOptions.class));
this.besStreamOptions =
Preconditions.checkNotNull(parsingResult.getOptions(BuildEventStreamOptions.class));
CountingArtifactGroupNamer artifactGroupNamer = new CountingArtifactGroupNamer();
Supplier<BuildEventArtifactUploader> uploaderSupplier =
Suppliers.memoize(
() ->
cmdEnv
.getRuntime()
.getBuildEventArtifactUploaderFactoryMap()
.select(bepOptions.buildEventUploadStrategy)
.create(cmdEnv));
if (!whitelistedCommands(besOptions).contains(cmdEnv.getCommandName())) {
// Exit early if the running command isn't supported.
return;
}
bepTransports = createBepTransports(cmdEnv, uploaderSupplier, artifactGroupNamer);
if (bepTransports.isEmpty()) {
// Exit early if there are no transports to stream to.
return;
}
streamer =
new BuildEventStreamer.Builder()
.buildEventTransports(bepTransports)
.cmdLineReporter(cmdEnv.getReporter())
.besStreamOptions(besStreamOptions)
.artifactGroupNamer(artifactGroupNamer)
.build();
cmdEnv.getReporter().addHandler(streamer);
cmdEnv.getEventBus().register(streamer);
registerOutAndErrOutputStreams();
}
private void registerOutAndErrOutputStreams() {
int bufferSize = besOptions.besOuterrBufferSize;
int chunkSize = besOptions.besOuterrChunkSize;
final SynchronizedOutputStream out = new SynchronizedOutputStream(bufferSize, chunkSize);
final SynchronizedOutputStream err = new SynchronizedOutputStream(bufferSize, chunkSize);
this.outErr = OutErr.create(out, err);
streamer.registerOutErrProvider(
new BuildEventStreamer.OutErrProvider() {
@Override
public Iterable<String> getOut() {
return out.readAndReset();
}
@Override
public Iterable<String> getErr() {
return err.readAndReset();
}
});
err.registerStreamer(streamer);
out.registerStreamer(streamer);
}
@Override
public OutErr getOutputListener() {
return outErr;
}
@Override
public void blazeShutdownOnCrash() {
if (streamer != null) {
logger.warning("Attempting to close BES streamer on crash");
streamer.close(AbortReason.INTERNAL);
}
}
@Override
public void afterCommand() {
if (streamer != null) {
if (!streamer.isClosed()) {
// This should not occur, but close with an internal error if a {@link BuildEventStreamer}
// bug manifests as an unclosed streamer.
logger.warning("Attempting to close BES streamer after command");
String msg = "BES was not properly closed";
LoggingUtil.logToRemote(Level.WARNING, msg, new IllegalStateException(msg));
streamer.close(AbortReason.INTERNAL);
}
this.streamer = null;
}
if (!besStreamOptions.keepBackendConnections) {
clearBesClient();
}
this.outErr = null;
this.bepTransports = null;
}
// TODO(b/115961387): Remove the @Nullable and print one line for the IDs and another optional
// line for the results URL instead. Currently it's not straightforward since
// {@link ExitFunction} (accidentally) depends on the nullability of besResultsUrl.
@Nullable
private String constructAndReportBesResultsMessage(
String invocationId, String buildRequestId, EventHandler reporter) {
final String besResultsUrl;
if (!Strings.isNullOrEmpty(besOptions.besResultsUrl)) {
besResultsUrl =
besOptions.besResultsUrl.endsWith("/")
? besOptions.besResultsUrl + invocationId
: besOptions.besResultsUrl + "/" + invocationId;
reporter.handle(Event.info("Streaming Build Event Protocol to " + besResultsUrl));
} else {
besResultsUrl = null;
reporter.handle(
Event.info(
String.format(
"Streaming Build Event Protocol to %s build_request_id: %s "
+ "invocation_id: %s",
besOptions.besBackend, buildRequestId, invocationId)));
}
return besResultsUrl;
}
@Nullable
private BuildEventServiceTransport createBesTransport(
CommandEnvironment cmdEnv,
Supplier<BuildEventArtifactUploader> uploaderSupplier,
CountingArtifactGroupNamer artifactGroupNamer) {
if (Strings.isNullOrEmpty(besOptions.besBackend)) {
clearBesClient();
return null;
}
String besResultsUrl =
constructAndReportBesResultsMessage(
cmdEnv.getCommandId().toString(), cmdEnv.getBuildRequestId(), cmdEnv.getReporter());
final BuildEventServiceClient besClient;
try {
besClient = getBesClient(besOptions, authTlsOptions);
} catch (IOException | OptionsParsingException e) {
reportError(
cmdEnv.getReporter(),
cmdEnv.getBlazeModuleEnvironment(),
e.getMessage(),
e,
ExitCode.LOCAL_ENVIRONMENTAL_ERROR);
return null;
}
BuildEventServiceProtoUtil besProtoUtil =
new BuildEventServiceProtoUtil.Builder()
.buildRequestId(cmdEnv.getBuildRequestId())
.invocationId(cmdEnv.getCommandId().toString())
.projectId(besOptions.projectId)
.commandName(cmdEnv.getCommandName())
.keywords(getBesKeywords(besOptions, cmdEnv.getRuntime().getStartupOptionsProvider()))
.build();
return new BuildEventServiceTransport.Builder()
.localFileUploader(uploaderSupplier.get())
.besClient(besClient)
.besOptions(besOptions)
.besProtoUtil(besProtoUtil)
.artifactGroupNamer(artifactGroupNamer)
.bepOptions(bepOptions)
.clock(cmdEnv.getRuntime().getClock())
.exitFunction(
ExitFunction.standardExitFunction(
cmdEnv.getReporter(),
cmdEnv.getBlazeModuleEnvironment(),
besResultsUrl,
errorsShouldFailTheBuild()))
.eventBus(cmdEnv.getEventBus())
.build();
}
private ImmutableSet<BuildEventTransport> createBepTransports(
CommandEnvironment cmdEnv,
Supplier<BuildEventArtifactUploader> uploaderSupplier,
CountingArtifactGroupNamer artifactGroupNamer) {
ImmutableSet.Builder<BuildEventTransport> bepTransportsBuilder = new ImmutableSet.Builder<>();
Consumer<AbruptExitException> abruptExitCallback = cmdEnv.getBlazeModuleEnvironment()::exit;
if (!Strings.isNullOrEmpty(besStreamOptions.buildEventTextFile)) {
try {
BufferedOutputStream bepTextOutputStream =
new BufferedOutputStream(
Files.newOutputStream(Paths.get(besStreamOptions.buildEventTextFile)));
BuildEventArtifactUploader localFileUploader =
besStreamOptions.buildEventTextFilePathConversion
? uploaderSupplier.get()
: new LocalFilesArtifactUploader();
bepTransportsBuilder.add(
new TextFormatFileTransport(
bepTextOutputStream,
bepOptions,
localFileUploader,
abruptExitCallback,
artifactGroupNamer));
} catch (IOException exception) {
// TODO(b/125216340): Consider making this a warning instead of an error once the
// associated bug has been resolved.
reportError(
cmdEnv.getReporter(),
cmdEnv.getBlazeModuleEnvironment(),
"Unable to write to '"
+ besStreamOptions.buildEventTextFile
+ "'. Omitting --build_event_text_file.",
exception,
ExitCode.LOCAL_ENVIRONMENTAL_ERROR);
}
}
if (!Strings.isNullOrEmpty(besStreamOptions.buildEventBinaryFile)) {
try {
BufferedOutputStream bepBinaryOutputStream =
new BufferedOutputStream(
Files.newOutputStream(Paths.get(besStreamOptions.buildEventBinaryFile)));
BuildEventArtifactUploader localFileUploader =
besStreamOptions.buildEventBinaryFilePathConversion
? uploaderSupplier.get()
: new LocalFilesArtifactUploader();
bepTransportsBuilder.add(
new BinaryFormatFileTransport(
bepBinaryOutputStream,
bepOptions,
localFileUploader,
abruptExitCallback,
artifactGroupNamer));
} catch (IOException exception) {
// TODO(b/125216340): Consider making this a warning instead of an error once the
// associated bug has been resolved.
reportError(
cmdEnv.getReporter(),
cmdEnv.getBlazeModuleEnvironment(),
"Unable to write to '"
+ besStreamOptions.buildEventBinaryFile
+ "'. Omitting --build_event_binary_file.",
exception,
ExitCode.LOCAL_ENVIRONMENTAL_ERROR);
}
}
if (!Strings.isNullOrEmpty(besStreamOptions.buildEventJsonFile)) {
try {
BufferedOutputStream bepJsonOutputStream =
new BufferedOutputStream(
Files.newOutputStream(Paths.get(besStreamOptions.buildEventJsonFile)));
BuildEventArtifactUploader localFileUploader =
besStreamOptions.buildEventJsonFilePathConversion
? uploaderSupplier.get()
: new LocalFilesArtifactUploader();
bepTransportsBuilder.add(
new JsonFormatFileTransport(
bepJsonOutputStream,
bepOptions,
localFileUploader,
abruptExitCallback,
artifactGroupNamer));
} catch (IOException exception) {
// TODO(b/125216340): Consider making this a warning instead of an error once the
// associated bug has been resolved.
reportError(
cmdEnv.getReporter(),
cmdEnv.getBlazeModuleEnvironment(),
"Unable to write to '"
+ besStreamOptions.buildEventJsonFile
+ "'. Omitting --build_event_json_file.",
exception,
ExitCode.LOCAL_ENVIRONMENTAL_ERROR);
}
}
BuildEventServiceTransport besTransport =
createBesTransport(cmdEnv, uploaderSupplier, artifactGroupNamer);
if (besTransport != null) {
bepTransportsBuilder.add(besTransport);
}
return bepTransportsBuilder.build();
}
protected abstract Class<BESOptionsT> optionsClass();
protected abstract BuildEventServiceClient getBesClient(
BESOptionsT besOptions, AuthAndTLSOptions authAndTLSOptions)
throws IOException, OptionsParsingException;
protected abstract void clearBesClient();
protected abstract Set<String> whitelistedCommands(BESOptionsT besOptions);
protected Set<String> getBesKeywords(
BESOptionsT besOptions, @Nullable OptionsParsingResult startupOptionsProvider) {
return besOptions.besKeywords.stream()
.map(keyword -> "user_keyword=" + keyword)
.collect(ImmutableSet.toImmutableSet());
}
// TODO(b/115961387): This method shouldn't exist. It only does because some tests are relying on
// the transport creation logic of this module directly.
@VisibleForTesting
ImmutableSet<BuildEventTransport> getBepTransports() {
return bepTransports;
}
}