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Example 1 with StreamedFormatter

use of com.google.devtools.build.lib.query2.output.OutputFormatter.StreamedFormatter 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;
}
Also used : OutputStream(java.io.OutputStream) QueryEvalResult(com.google.devtools.build.lib.query2.engine.QueryEvalResult) StreamedFormatter(com.google.devtools.build.lib.query2.output.OutputFormatter.StreamedFormatter) AggregateAllOutputFormatterCallback(com.google.devtools.build.lib.query2.engine.QueryUtil.AggregateAllOutputFormatterCallback) QueryOptions(com.google.devtools.build.lib.query2.output.QueryOptions) OutputFormatter(com.google.devtools.build.lib.query2.output.OutputFormatter) ClosedByInterruptException(java.nio.channels.ClosedByInterruptException) Target(com.google.devtools.build.lib.packages.Target) QueryExpression(com.google.devtools.build.lib.query2.engine.QueryExpression) Path(com.google.devtools.build.lib.vfs.Path) Setting(com.google.devtools.build.lib.query2.engine.QueryEnvironment.Setting) NoBuildEvent(com.google.devtools.build.lib.analysis.NoBuildEvent) IOException(java.io.IOException) BlazeRuntime(com.google.devtools.build.lib.runtime.BlazeRuntime) QueryException(com.google.devtools.build.lib.query2.engine.QueryException) AbruptExitException(com.google.devtools.build.lib.util.AbruptExitException)

Example 2 with StreamedFormatter

use of com.google.devtools.build.lib.query2.output.OutputFormatter.StreamedFormatter in project bazel by bazelbuild.

the class QueryOutputUtils method output.

public static void output(QueryOptions queryOptions, QueryEvalResult result, Set<Target> targetsResult, OutputFormatter formatter, OutputStream outputStream, AspectResolver aspectResolver) throws IOException, InterruptedException {
    /*
     * This is not really streaming, but we are using the streaming interface for writing into the
     * output everything in one batch. This happens when the QueryEnvironment does not
     * support streaming but we don't care about ordered results.
     */
    boolean orderedResults = !shouldStreamResults(queryOptions, formatter);
    if (orderedResults) {
        formatter.output(queryOptions, ((DigraphQueryEvalResult<Target>) result).getGraph().extractSubgraph(targetsResult), outputStream, aspectResolver);
    } else {
        StreamedFormatter streamedFormatter = (StreamedFormatter) formatter;
        streamedFormatter.setOptions(queryOptions, aspectResolver);
        OutputFormatterCallback.processAllTargets(streamedFormatter.createPostFactoStreamCallback(outputStream, queryOptions), targetsResult);
    }
}
Also used : StreamedFormatter(com.google.devtools.build.lib.query2.output.OutputFormatter.StreamedFormatter) DigraphQueryEvalResult(com.google.devtools.build.lib.query2.engine.DigraphQueryEvalResult)

Aggregations

StreamedFormatter (com.google.devtools.build.lib.query2.output.OutputFormatter.StreamedFormatter)2 NoBuildEvent (com.google.devtools.build.lib.analysis.NoBuildEvent)1 Target (com.google.devtools.build.lib.packages.Target)1 DigraphQueryEvalResult (com.google.devtools.build.lib.query2.engine.DigraphQueryEvalResult)1 Setting (com.google.devtools.build.lib.query2.engine.QueryEnvironment.Setting)1 QueryEvalResult (com.google.devtools.build.lib.query2.engine.QueryEvalResult)1 QueryException (com.google.devtools.build.lib.query2.engine.QueryException)1 QueryExpression (com.google.devtools.build.lib.query2.engine.QueryExpression)1 AggregateAllOutputFormatterCallback (com.google.devtools.build.lib.query2.engine.QueryUtil.AggregateAllOutputFormatterCallback)1 OutputFormatter (com.google.devtools.build.lib.query2.output.OutputFormatter)1 QueryOptions (com.google.devtools.build.lib.query2.output.QueryOptions)1 BlazeRuntime (com.google.devtools.build.lib.runtime.BlazeRuntime)1 AbruptExitException (com.google.devtools.build.lib.util.AbruptExitException)1 Path (com.google.devtools.build.lib.vfs.Path)1 IOException (java.io.IOException)1 OutputStream (java.io.OutputStream)1 ClosedByInterruptException (java.nio.channels.ClosedByInterruptException)1