Examples with AggregateAllOutputFormatterCallback com.google.devtools.build.lib.query2.engine.QueryUtil.AggregateAllOutputFormatterCallback used on opensource projects

Example 1 with AggregateAllOutputFormatterCallback

use of com.google.devtools.build.lib.query2.engine.QueryUtil.AggregateAllOutputFormatterCallback in project bazel by bazelbuild.

the class QueryCommand method exec.

/**
   * Exit codes:
   *   0   on successful evaluation.
   *   1   if query evaluation did not complete.
   *   2   if query parsing failed.
   *   3   if errors were reported but evaluation produced a partial result
   *        (only when --keep_going is in effect.)
   */
@Override
public ExitCode exec(CommandEnvironment env, OptionsProvider options) {
    BlazeRuntime runtime = env.getRuntime();
    QueryOptions queryOptions = options.getOptions(QueryOptions.class);
    try {
        env.setupPackageCache(options, runtime.getDefaultsPackageContent());
    } catch (InterruptedException e) {
        env.getReporter().handle(Event.error("query interrupted"));
        return ExitCode.INTERRUPTED;
    } catch (AbruptExitException e) {
        env.getReporter().handle(Event.error(null, "Unknown error: " + e.getMessage()));
        return e.getExitCode();
    }
    String query;
    if (!options.getResidue().isEmpty()) {
        if (!queryOptions.queryFile.isEmpty()) {
            env.getReporter().handle(Event.error("Command-line query and --query_file cannot both be specified"));
            return ExitCode.COMMAND_LINE_ERROR;
        }
        query = Joiner.on(' ').join(options.getResidue());
    } else if (!queryOptions.queryFile.isEmpty()) {
        // Works for absolute or relative query file.
        Path residuePath = env.getWorkingDirectory().getRelative(queryOptions.queryFile);
        try {
            query = new String(FileSystemUtils.readContent(residuePath), StandardCharsets.UTF_8);
        } catch (IOException e) {
            env.getReporter().handle(Event.error("I/O error reading from " + residuePath.getPathString()));
            return ExitCode.COMMAND_LINE_ERROR;
        }
    } else {
        env.getReporter().handle(Event.error(String.format("missing query expression. Type '%s help query' for syntax and help", runtime.getProductName())));
        return ExitCode.COMMAND_LINE_ERROR;
    }
    Iterable<OutputFormatter> formatters = runtime.getQueryOutputFormatters();
    OutputFormatter formatter = OutputFormatter.getFormatter(formatters, queryOptions.outputFormat);
    if (formatter == null) {
        env.getReporter().handle(Event.error(String.format("Invalid output format '%s'. Valid values are: %s", queryOptions.outputFormat, OutputFormatter.formatterNames(formatters))));
        return ExitCode.COMMAND_LINE_ERROR;
    }
    Set<Setting> settings = queryOptions.toSettings();
    boolean streamResults = QueryOutputUtils.shouldStreamResults(queryOptions, formatter);
    QueryEvalResult result;
    AbstractBlazeQueryEnvironment<Target> queryEnv = newQueryEnvironment(env, queryOptions.keepGoing, !streamResults, queryOptions.universeScope, queryOptions.loadingPhaseThreads, settings);
    // 1. Parse and transform query:
    QueryExpression expr;
    try {
        expr = QueryExpression.parse(query, queryEnv);
    } catch (QueryException e) {
        env.getReporter().handle(Event.error(null, "Error while parsing '" + query + "': " + e.getMessage()));
        return ExitCode.COMMAND_LINE_ERROR;
    }
    expr = queryEnv.transformParsedQuery(expr);
    OutputStream out = env.getReporter().getOutErr().getOutputStream();
    ThreadSafeOutputFormatterCallback<Target> callback;
    if (streamResults) {
        disableAnsiCharactersFiltering(env);
        // 2. Evaluate expression:
        StreamedFormatter streamedFormatter = ((StreamedFormatter) formatter);
        streamedFormatter.setOptions(queryOptions, queryOptions.aspectDeps.createResolver(env.getPackageManager(), env.getReporter()));
        callback = streamedFormatter.createStreamCallback(out, queryOptions, queryEnv);
    } else {
        callback = QueryUtil.newOrderedAggregateAllOutputFormatterCallback();
    }
    boolean catastrophe = true;
    try {
        result = queryEnv.evaluateQuery(expr, callback);
        catastrophe = false;
    } catch (QueryException e) {
        catastrophe = false;
        // Keep consistent with reportBuildFileError()
        env.getReporter().handle(Event.error(e.getMessage() == null ? e.toString() : e.getMessage()));
        return ExitCode.ANALYSIS_FAILURE;
    } catch (InterruptedException e) {
        catastrophe = false;
        IOException ioException = callback.getIoException();
        if (ioException == null || ioException instanceof ClosedByInterruptException) {
            env.getReporter().handle(Event.error("query interrupted"));
            return ExitCode.INTERRUPTED;
        } else {
            env.getReporter().handle(Event.error("I/O error: " + e.getMessage()));
            return ExitCode.LOCAL_ENVIRONMENTAL_ERROR;
        }
    } catch (IOException e) {
        catastrophe = false;
        env.getReporter().handle(Event.error("I/O error: " + e.getMessage()));
        return ExitCode.LOCAL_ENVIRONMENTAL_ERROR;
    } finally {
        if (!catastrophe) {
            try {
                out.flush();
            } catch (IOException e) {
                env.getReporter().handle(Event.error("Failed to flush query results: " + e.getMessage()));
                return ExitCode.LOCAL_ENVIRONMENTAL_ERROR;
            }
        }
    }
    env.getEventBus().post(new NoBuildEvent());
    if (!streamResults) {
        disableAnsiCharactersFiltering(env);
        // 3. Output results:
        try {
            Set<Target> targets = ((AggregateAllOutputFormatterCallback<Target>) callback).getResult();
            QueryOutputUtils.output(queryOptions, result, targets, formatter, env.getReporter().getOutErr().getOutputStream(), queryOptions.aspectDeps.createResolver(env.getPackageManager(), env.getReporter()));
        } catch (ClosedByInterruptException | InterruptedException e) {
            env.getReporter().handle(Event.error("query interrupted"));
            return ExitCode.INTERRUPTED;
        } catch (IOException e) {
            env.getReporter().handle(Event.error("I/O error: " + e.getMessage()));
            return ExitCode.LOCAL_ENVIRONMENTAL_ERROR;
        } finally {
            try {
                out.flush();
            } catch (IOException e) {
                env.getReporter().handle(Event.error("Failed to flush query results: " + e.getMessage()));
                return ExitCode.LOCAL_ENVIRONMENTAL_ERROR;
            }
        }
    }
    if (result.isEmpty()) {
        env.getReporter().handle(Event.info("Empty results"));
    }
    return result.getSuccess() ? ExitCode.SUCCESS : ExitCode.PARTIAL_ANALYSIS_FAILURE;
}

Example 2 with AggregateAllOutputFormatterCallback

use of com.google.devtools.build.lib.query2.engine.QueryUtil.AggregateAllOutputFormatterCallback in project bazel by bazelbuild.

the class GenQuery method doQuery.

@SuppressWarnings("unchecked")
@Nullable
private byte[] doQuery(QueryOptions queryOptions, PackageProvider packageProvider, Predicate<Label> labelFilter, TargetPatternEvaluator evaluator, String query, RuleContext ruleContext) throws InterruptedException {
    DigraphQueryEvalResult<Target> queryResult;
    OutputFormatter formatter;
    AggregateAllOutputFormatterCallback<Target> targets = QueryUtil.newOrderedAggregateAllOutputFormatterCallback();
    try {
        Set<Setting> settings = queryOptions.toSettings();
        // Turns out, if we have two targets with a cycle of length 2 were one of
        // the edges is of type NODEP_LABEL type, the targets both show up in
        // each other's result for deps(X) when the query is executed using
        // 'blaze query'. This obviously does not fly when doing the query as a
        // part of the build, thus, there is a slight discrepancy between the
        // behavior of the query engine in these two use cases.
        settings.add(Setting.NO_NODEP_DEPS);
        ImmutableList<OutputFormatter> outputFormatters = QUERY_OUTPUT_FORMATTERS.get(ruleContext.getAnalysisEnvironment().getSkyframeEnv());
        // This is a precomputed value so it should have been injected by the rules module by the
        // time we get there.
        formatter = OutputFormatter.getFormatter(Preconditions.checkNotNull(outputFormatters), queryOptions.outputFormat);
        // All the packages are already loaded at this point, so there is no need
        // to start up many threads. 4 are started up to make good use of multiple
        // cores.
        BlazeQueryEnvironment queryEnvironment = (BlazeQueryEnvironment) QUERY_ENVIRONMENT_FACTORY.create(/*transitivePackageLoader=*/
        null, /*graph=*/
        null, packageProvider, evaluator, /*keepGoing=*/
        false, ruleContext.attributes().get("strict", Type.BOOLEAN), /*orderedResults=*/
        !QueryOutputUtils.shouldStreamResults(queryOptions, formatter), /*universeScope=*/
        ImmutableList.<String>of(), /*loadingPhaseThreads=*/
        4, labelFilter, getEventHandler(ruleContext), settings, ImmutableList.<QueryFunction>of(), /*packagePath=*/
        null, /*blockUniverseEvaluationErrors=*/
        false);
        queryResult = (DigraphQueryEvalResult<Target>) queryEnvironment.evaluateQuery(query, targets);
    } catch (SkyframeRestartQueryException e) {
        // inconsistent from run to run, and make detecting legitimate errors more difficult.
        return null;
    } catch (QueryException e) {
        ruleContext.ruleError("query failed: " + e.getMessage());
        return null;
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    try {
        QueryOutputUtils.output(queryOptions, queryResult, targets.getResult(), formatter, outputStream, queryOptions.aspectDeps.createResolver(packageProvider, getEventHandler(ruleContext)));
    } catch (ClosedByInterruptException e) {
        throw new InterruptedException(e.getMessage());
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
    return outputStream.toByteArray();
}