private final BuildConfigurationCollection getConfigurations(
BuildOptions buildOptions, Set<String> multiCpu, boolean keepGoing)
throws InvalidConfigurationException, InterruptedException {
SkyframeExecutor executor = runtime.getSkyframeExecutor();
// TODO(bazel-team): consider a possibility of moving ConfigurationFactory construction into
// skyframe.
return executor.createConfigurations(
runtime.getConfigurationFactory(),
buildOptions,
runtime.getDirectories(),
multiCpu,
keepGoing);
}
private ExitCode doTest(
CommandEnvironment env, OptionsProvider options, AggregatingTestListener testListener) {
BlazeRuntime runtime = env.getRuntime();
// Run simultaneous build and test.
List<String> targets = ProjectFileSupport.getTargets(runtime, options);
BuildRequest request =
BuildRequest.create(
getClass().getAnnotation(Command.class).name(),
options,
runtime.getStartupOptionsProvider(),
targets,
env.getReporter().getOutErr(),
env.getCommandId(),
env.getCommandStartTime());
request.setRunTests();
BuildResult buildResult = new BuildTool(env).processRequest(request, null);
Collection<ConfiguredTarget> testTargets = buildResult.getTestTargets();
// TODO(bazel-team): don't handle isEmpty here or fix up a bunch of tests
if (buildResult.getSuccessfulTargets() == null) {
// This can happen if there were errors in the target parsing or loading phase
// (original exitcode=BUILD_FAILURE) or if there weren't but --noanalyze was given
// (original exitcode=SUCCESS).
env.getReporter().handle(Event.error("Couldn't start the build. Unable to run tests"));
return buildResult.getSuccess() ? ExitCode.PARSING_FAILURE : buildResult.getExitCondition();
}
// TODO(bazel-team): the check above shadows NO_TESTS_FOUND, but switching the conditions breaks
// more tests
if (testTargets.isEmpty()) {
env.getReporter()
.handle(Event.error(null, "No test targets were found, yet testing was requested"));
return buildResult.getSuccess() ? ExitCode.NO_TESTS_FOUND : buildResult.getExitCondition();
}
boolean buildSuccess = buildResult.getSuccess();
boolean testSuccess = analyzeTestResults(testTargets, testListener, options);
if (testSuccess && !buildSuccess) {
// If all tests run successfully, test summary should include warning if
// there were build errors not associated with the test targets.
printer.printLn(
AnsiTerminalPrinter.Mode.ERROR
+ "One or more non-test targets failed to build.\n"
+ AnsiTerminalPrinter.Mode.DEFAULT);
}
return buildSuccess
? (testSuccess ? ExitCode.SUCCESS : ExitCode.TESTS_FAILED)
: buildResult.getExitCondition();
}
/**
* Stops processing the specified request.
*
* <p>This logs the build result, cleans up and stops the clock.
*
* @param request the build request that this build tool is servicing
* @param crash Any unexpected RuntimeException or Error. May be null
* @param exitCondition A suggested exit condition from either the build logic or a thrown
* exception somewhere along the way.
*/
public void stopRequest(
BuildRequest request, BuildResult result, Throwable crash, ExitCode exitCondition) {
Preconditions.checkState((crash == null) || (exitCondition != ExitCode.SUCCESS));
result.setUnhandledThrowable(crash);
result.setExitCondition(exitCondition);
// The stop time has to be captured before we send the BuildCompleteEvent.
result.setStopTime(runtime.getClock().currentTimeMillis());
getEventBus().post(new BuildCompleteEvent(request, result));
}
@VisibleForTesting
protected final LoadingResult runLoadingPhase(
final BuildRequest request, final TargetValidator validator)
throws LoadingFailedException, TargetParsingException, InterruptedException,
AbruptExitException {
Profiler.instance().markPhase(ProfilePhase.LOAD);
runtime.throwPendingException();
initializeOutputFilter(request);
final boolean keepGoing = request.getViewOptions().keepGoing;
Callback callback =
new Callback() {
@Override
public void notifyTargets(Collection<Target> targets) throws LoadingFailedException {
if (validator != null) {
validator.validateTargets(targets, keepGoing);
}
}
@Override
public void notifyVisitedPackages(Set<PackageIdentifier> visitedPackages) {
runtime.getSkyframeExecutor().updateLoadedPackageSet(visitedPackages);
}
};
LoadingResult result =
runtime
.getLoadingPhaseRunner()
.execute(
getReporter(),
getEventBus(),
request.getTargets(),
request.getLoadingOptions(),
runtime.createBuildOptions(request).getAllLabels(),
keepGoing,
request.shouldRunTests(),
callback);
runtime.throwPendingException();
return result;
}
@Override
public ExitCode exec(CommandEnvironment env, OptionsProvider options)
throws ShutdownBlazeServerException {
BlazeRuntime runtime = env.getRuntime();
Options cleanOptions = options.getOptions(Options.class);
cleanOptions.expunge_async = cleanOptions.cleanStyle.equals("expunge_async");
cleanOptions.expunge = cleanOptions.cleanStyle.equals("expunge");
if (!cleanOptions.expunge
&& !cleanOptions.expunge_async
&& !cleanOptions.cleanStyle.isEmpty()) {
env.getReporter()
.handle(Event.error(null, "Invalid clean_style value '" + cleanOptions.cleanStyle + "'"));
return ExitCode.COMMAND_LINE_ERROR;
}
String cleanBanner =
cleanOptions.expunge_async
? "Starting clean."
: "Starting clean (this may take a while). "
+ "Consider using --expunge_async if the clean takes more than several minutes.";
env.getReporter().handle(Event.info(null /*location*/, cleanBanner));
try {
String symlinkPrefix =
options.getOptions(BuildRequest.BuildRequestOptions.class).getSymlinkPrefix();
actuallyClean(env, runtime.getOutputBase(), cleanOptions, symlinkPrefix);
return ExitCode.SUCCESS;
} catch (IOException e) {
env.getReporter().handle(Event.error(e.getMessage()));
return ExitCode.LOCAL_ENVIRONMENTAL_ERROR;
} catch (CommandException | ExecException e) {
env.getReporter().handle(Event.error(e.getMessage()));
return ExitCode.RUN_FAILURE;
} catch (InterruptedException e) {
env.getReporter().handle(Event.error("clean interrupted"));
return ExitCode.INTERRUPTED;
}
}
/**
* The crux of the build system. Builds the targets specified in the request using the specified
* Executor.
*
* <p>Performs loading, analysis and execution for the specified set of targets, honoring the
* configuration options in the BuildRequest. Returns normally iff successful, throws an exception
* otherwise.
*
* <p>The caller is responsible for setting up and syncing the package cache.
*
* <p>During this function's execution, the actualTargets and successfulTargets fields of the
* request object are set.
*
* @param request the build request that this build tool is servicing, which specifies various
* options; during this method's execution, the actualTargets and successfulTargets fields of
* the request object are populated
* @param validator target validator
* @return the result as a {@link BuildResult} object
*/
public BuildResult processRequest(BuildRequest request, TargetValidator validator) {
BuildResult result = new BuildResult(request.getStartTime());
runtime.getEventBus().register(result);
Throwable catastrophe = null;
ExitCode exitCode = ExitCode.BLAZE_INTERNAL_ERROR;
try {
buildTargets(request, result, validator);
exitCode = ExitCode.SUCCESS;
} catch (BuildFailedException e) {
if (e.isErrorAlreadyShown()) {
// The actual error has already been reported by the Builder.
} else {
reportExceptionError(e);
}
if (e.isCatastrophic()) {
result.setCatastrophe();
}
exitCode = ExitCode.BUILD_FAILURE;
} catch (InterruptedException e) {
exitCode = ExitCode.INTERRUPTED;
getReporter().handle(Event.error("build interrupted"));
getEventBus().post(new BuildInterruptedEvent());
} catch (TargetParsingException | LoadingFailedException | ViewCreationFailedException e) {
exitCode = ExitCode.PARSING_FAILURE;
reportExceptionError(e);
} catch (TestExecException e) {
// ExitCode.SUCCESS means that build was successful. Real return code of program
// is going to be calculated in TestCommand.doTest().
exitCode = ExitCode.SUCCESS;
reportExceptionError(e);
} catch (InvalidConfigurationException e) {
exitCode = ExitCode.COMMAND_LINE_ERROR;
reportExceptionError(e);
} catch (AbruptExitException e) {
exitCode = e.getExitCode();
reportExceptionError(e);
result.setCatastrophe();
} catch (Throwable throwable) {
catastrophe = throwable;
Throwables.propagate(throwable);
} finally {
stopRequest(request, result, catastrophe, exitCode);
}
return result;
}
private EventBus getEventBus() {
return runtime.getEventBus();
}
private Reporter getReporter() {
return runtime.getReporter();
}
public BuildView getView() {
return runtime.getView();
}
/**
* The crux of the build system. Builds the targets specified in the request using the specified
* Executor.
*
* <p>Performs loading, analysis and execution for the specified set of targets, honoring the
* configuration options in the BuildRequest. Returns normally iff successful, throws an exception
* otherwise.
*
* <p>Callers must ensure that {@link #stopRequest} is called after this method, even if it
* throws.
*
* <p>The caller is responsible for setting up and syncing the package cache.
*
* <p>During this function's execution, the actualTargets and successfulTargets fields of the
* request object are set.
*
* @param request the build request that this build tool is servicing, which specifies various
* options; during this method's execution, the actualTargets and successfulTargets fields of
* the request object are populated
* @param result the build result that is the mutable result of this build
* @param validator target validator
*/
public void buildTargets(BuildRequest request, BuildResult result, TargetValidator validator)
throws BuildFailedException, LocalEnvironmentException, InterruptedException,
ViewCreationFailedException, TargetParsingException, LoadingFailedException,
ExecutorInitException, AbruptExitException, InvalidConfigurationException,
TestExecException {
validateOptions(request);
BuildOptions buildOptions = runtime.createBuildOptions(request);
// Sync the package manager before sending the BuildStartingEvent in runLoadingPhase()
runtime.setupPackageCache(
request.getPackageCacheOptions(), DefaultsPackage.getDefaultsPackageContent(buildOptions));
ExecutionTool executionTool = null;
LoadingResult loadingResult = null;
BuildConfigurationCollection configurations = null;
try {
getEventBus().post(new BuildStartingEvent(runtime.getOutputFileSystem(), request));
LOG.info("Build identifier: " + request.getId());
executionTool = new ExecutionTool(runtime, request);
if (needsExecutionPhase(request.getBuildOptions())) {
// Initialize the execution tool early if we need it. This hides the latency of setting up
// the execution backends.
executionTool.init();
}
// Loading phase.
loadingResult = runLoadingPhase(request, validator);
// Create the build configurations.
if (!request.getMultiCpus().isEmpty()) {
getReporter()
.handle(
Event.warn(
"The --experimental_multi_cpu option is _very_ experimental and only intended for "
+ "internal testing at this time. If you do not work on the build tool, then you "
+ "should stop now!"));
if (!"build".equals(request.getCommandName()) && !"test".equals(request.getCommandName())) {
throw new InvalidConfigurationException(
"The experimental setting to select multiple CPUs is only supported for 'build' and "
+ "'test' right now!");
}
}
configurations =
getConfigurations(
buildOptions, request.getMultiCpus(), request.getViewOptions().keepGoing);
getEventBus().post(new ConfigurationsCreatedEvent(configurations));
runtime.throwPendingException();
if (configurations.getTargetConfigurations().size() == 1) {
// TODO(bazel-team): This is not optimal - we retain backwards compatibility in the case
// where there's only a single configuration, but we don't send an event in the multi-config
// case. Can we do better? [multi-config]
getEventBus()
.post(
new MakeEnvironmentEvent(
configurations.getTargetConfigurations().get(0).getMakeEnvironment()));
}
LOG.info("Configurations created");
// Analysis phase.
AnalysisResult analysisResult = runAnalysisPhase(request, loadingResult, configurations);
result.setActualTargets(analysisResult.getTargetsToBuild());
result.setTestTargets(analysisResult.getTargetsToTest());
checkTargetEnvironmentRestrictions(
analysisResult.getTargetsToBuild(), runtime.getPackageManager());
reportTargets(analysisResult);
// Execution phase.
if (needsExecutionPhase(request.getBuildOptions())) {
runtime.getSkyframeExecutor().injectTopLevelContext(request.getTopLevelArtifactContext());
executionTool.executeBuild(
request.getId(),
analysisResult,
result,
runtime.getSkyframeExecutor(),
configurations,
transformPackageRoots(loadingResult.getPackageRoots()));
}
String delayedErrorMsg = analysisResult.getError();
if (delayedErrorMsg != null) {
throw new BuildFailedException(delayedErrorMsg);
}
} catch (RuntimeException e) {
// Print an error message for unchecked runtime exceptions. This does not concern Error
// subclasses such as OutOfMemoryError.
request
.getOutErr()
.printErrLn("Unhandled exception thrown during build; message: " + e.getMessage());
throw e;
} finally {
// Delete dirty nodes to ensure that they do not accumulate indefinitely.
long versionWindow = request.getViewOptions().versionWindowForDirtyNodeGc;
if (versionWindow != -1) {
runtime.getSkyframeExecutor().deleteOldNodes(versionWindow);
}
if (executionTool != null) {
executionTool.shutdown();
}
// The workspace status actions will not run with certain flags, or if an error
// occurs early in the build. Tell a lie so that the event is not missing.
// If multiple build_info events are sent, only the first is kept, so this does not harm
// successful runs (which use the workspace status action).
getEventBus()
.post(
new BuildInfoEvent(
runtime.getworkspaceStatusActionFactory().createDummyWorkspaceStatus()));
}
if (loadingResult != null && loadingResult.hasTargetPatternError()) {
throw new BuildFailedException(
"execution phase successful, but there were errors " + "parsing the target pattern");
}
}
private void actuallyClean(
CommandEnvironment env, Path outputBase, Options cleanOptions, String symlinkPrefix)
throws IOException, ShutdownBlazeServerException, CommandException, ExecException,
InterruptedException {
BlazeRuntime runtime = env.getRuntime();
if (env.getOutputService() != null) {
env.getOutputService().clean();
}
if (cleanOptions.expunge) {
LOG.info("Expunging...");
// Delete the big subdirectories with the important content first--this
// will take the most time. Then quickly delete the little locks, logs
// and links right before we exit. Once the lock file is gone there will
// be a small possibility of a server race if a client is waiting, but
// all significant files will be gone by then.
FileSystemUtils.deleteTreesBelow(outputBase);
FileSystemUtils.deleteTree(outputBase);
} else if (cleanOptions.expunge_async) {
LOG.info("Expunging asynchronously...");
String tempBaseName = outputBase.getBaseName() + "_tmp_" + ProcessUtils.getpid();
// Keeping tempOutputBase in the same directory ensures it remains in the
// same file system, and therefore the mv will be atomic and fast.
Path tempOutputBase = outputBase.getParentDirectory().getChild(tempBaseName);
outputBase.renameTo(tempOutputBase);
env.getReporter()
.handle(Event.info(null, "Output base moved to " + tempOutputBase + " for deletion"));
// Daemonize the shell and use the double-fork idiom to ensure that the shell
// exits even while the "rm -rf" command continues.
String command =
String.format(
"exec >&- 2>&- <&- && (/usr/bin/setsid /bin/rm -rf %s &)&",
ShellEscaper.escapeString(tempOutputBase.getPathString()));
LOG.info("Executing shell commmand " + ShellEscaper.escapeString(command));
// Doesn't throw iff command exited and was successful.
new CommandBuilder()
.addArg(command)
.useShell(true)
.setWorkingDir(tempOutputBase.getParentDirectory())
.build()
.execute();
} else {
LOG.info("Output cleaning...");
runtime.clearCaches();
// In order to be sure that we delete everything, delete the workspace directory both for
// --deep_execroot and for --nodeep_execroot.
for (String directory :
new String[] {runtime.getWorkspaceName(), "execroot/" + runtime.getWorkspaceName()}) {
Path child = outputBase.getRelative(directory);
if (child.exists()) {
LOG.finest("Cleaning " + child);
FileSystemUtils.deleteTreesBelow(child);
}
}
}
// remove convenience links
OutputDirectoryLinksUtils.removeOutputDirectoryLinks(
runtime.getWorkspaceName(), runtime.getWorkspace(), env.getReporter(), symlinkPrefix);
// shutdown on expunge cleans
if (cleanOptions.expunge || cleanOptions.expunge_async) {
throw new ShutdownBlazeServerException(0);
}
}
