Examples with SourcePathRuleFinder com.facebook.buck.rules.SourcePathRuleFinder used on opensource projects

Example 26 with SourcePathRuleFinder

use of com.facebook.buck.rules.SourcePathRuleFinder in project buck by facebook.

the class NdkLibraryDescription method generateMakefile.

/**
   * @return a {@link BuildRule} which generates a Android.mk which pulls in the local Android.mk
   *     file and also appends relevant preprocessor and linker flags to use C/C++ library deps.
   */
private Pair<String, Iterable<BuildRule>> generateMakefile(BuildRuleParams params, BuildRuleResolver resolver) throws NoSuchBuildTargetException {
    SourcePathRuleFinder ruleFinder = new SourcePathRuleFinder(resolver);
    SourcePathResolver pathResolver = new SourcePathResolver(ruleFinder);
    ImmutableList.Builder<String> outputLinesBuilder = ImmutableList.builder();
    ImmutableSortedSet.Builder<BuildRule> deps = ImmutableSortedSet.naturalOrder();
    for (Map.Entry<NdkCxxPlatforms.TargetCpuType, NdkCxxPlatform> entry : cxxPlatforms.entrySet()) {
        CxxPlatform cxxPlatform = entry.getValue().getCxxPlatform();
        // Collect the preprocessor input for all C/C++ library deps.  We search *through* other
        // NDK library rules.
        CxxPreprocessorInput cxxPreprocessorInput = CxxPreprocessorInput.concat(CxxPreprocessables.getTransitiveCxxPreprocessorInput(cxxPlatform, params.getDeps(), NdkLibrary.class::isInstance));
        // We add any dependencies from the C/C++ preprocessor input to this rule, even though
        // it technically should be added to the top-level rule.
        deps.addAll(cxxPreprocessorInput.getDeps(resolver, ruleFinder));
        // Add in the transitive preprocessor flags contributed by C/C++ library rules into the
        // NDK build.
        ImmutableList.Builder<String> ppFlags = ImmutableList.builder();
        ppFlags.addAll(cxxPreprocessorInput.getPreprocessorFlags().get(CxxSource.Type.C));
        Preprocessor preprocessor = CxxSourceTypes.getPreprocessor(cxxPlatform, CxxSource.Type.C).resolve(resolver);
        ppFlags.addAll(CxxHeaders.getArgs(cxxPreprocessorInput.getIncludes(), pathResolver, Optional.empty(), preprocessor));
        String localCflags = Joiner.on(' ').join(escapeForMakefile(params.getProjectFilesystem(), ppFlags.build()));
        // Collect the native linkable input for all C/C++ library deps.  We search *through* other
        // NDK library rules.
        NativeLinkableInput nativeLinkableInput = NativeLinkables.getTransitiveNativeLinkableInput(cxxPlatform, params.getDeps(), Linker.LinkableDepType.SHARED, NdkLibrary.class::isInstance);
        // We add any dependencies from the native linkable input to this rule, even though
        // it technically should be added to the top-level rule.
        deps.addAll(nativeLinkableInput.getArgs().stream().flatMap(arg -> arg.getDeps(ruleFinder).stream()).iterator());
        // Add in the transitive native linkable flags contributed by C/C++ library rules into the
        // NDK build.
        String localLdflags = Joiner.on(' ').join(escapeForMakefile(params.getProjectFilesystem(), com.facebook.buck.rules.args.Arg.stringify(nativeLinkableInput.getArgs(), pathResolver)));
        // Write the relevant lines to the generated makefile.
        if (!localCflags.isEmpty() || !localLdflags.isEmpty()) {
            NdkCxxPlatforms.TargetCpuType targetCpuType = entry.getKey();
            String targetArchAbi = getTargetArchAbi(targetCpuType);
            outputLinesBuilder.add(String.format("ifeq ($(TARGET_ARCH_ABI),%s)", targetArchAbi));
            if (!localCflags.isEmpty()) {
                outputLinesBuilder.add("BUCK_DEP_CFLAGS=" + localCflags);
            }
            if (!localLdflags.isEmpty()) {
                outputLinesBuilder.add("BUCK_DEP_LDFLAGS=" + localLdflags);
            }
            outputLinesBuilder.add("endif");
            outputLinesBuilder.add("");
        }
    }
    // GCC-only magic that rewrites non-deterministic parts of builds
    String ndksubst = NdkCxxPlatforms.ANDROID_NDK_ROOT;
    outputLinesBuilder.addAll(ImmutableList.copyOf(new String[] { // We're evaluated once per architecture, but want to add the cflags only once.
    "ifeq ($(BUCK_ALREADY_HOOKED_CFLAGS),)", "BUCK_ALREADY_HOOKED_CFLAGS := 1", // Only GCC supports -fdebug-prefix-map
    "ifeq ($(filter clang%,$(NDK_TOOLCHAIN_VERSION)),)", // Replace absolute paths with machine-relative ones.
    "NDK_APP_CFLAGS += -fdebug-prefix-map=$(NDK_ROOT)/=" + ndksubst + "/", "NDK_APP_CFLAGS += -fdebug-prefix-map=$(abspath $(BUCK_PROJECT_DIR))/=./", // repository root.
    "NDK_APP_CFLAGS += -fdebug-prefix-map=$(BUCK_PROJECT_DIR)/=./", "NDK_APP_CFLAGS += -fdebug-prefix-map=./=" + ".$(subst $(abspath $(BUCK_PROJECT_DIR)),,$(abspath $(CURDIR)))/", "NDK_APP_CFLAGS += -fno-record-gcc-switches", "ifeq ($(filter 4.6,$(TOOLCHAIN_VERSION)),)", // headers either.
    "NDK_APP_CPPFLAGS += -fno-canonical-system-headers", // detailed command line argument information anyway.
    "NDK_APP_CFLAGS += -gno-record-gcc-switches", // !GCC 4.6
    "endif", // !clang
    "endif", // absolute path, but only for modules under the project root.
    "BUCK_SAVED_IMPORTS := $(__ndk_import_dirs)", "__ndk_import_dirs :=", "$(foreach __dir,$(BUCK_SAVED_IMPORTS),\\", "$(call import-add-path-optional,\\", "$(if $(filter $(abspath $(BUCK_PROJECT_DIR))%,$(__dir)),\\", "$(BUCK_PROJECT_DIR)$(patsubst $(abspath $(BUCK_PROJECT_DIR))%,%,$(__dir)),\\", "$(__dir))))", // !already hooked
    "endif", // generic paths.
    "NDK_APP_CFLAGS += -fdebug-prefix-map=$(TOOLCHAIN_PREBUILT_ROOT)/=" + "@ANDROID_NDK_ROOT@/toolchains/$(TOOLCHAIN_NAME)/prebuilt/@BUILD_HOST@/" }));
    outputLinesBuilder.add("include Android.mk");
    String contents = Joiner.on(System.lineSeparator()).join(outputLinesBuilder.build());
    return new Pair<String, Iterable<BuildRule>>(contents, deps.build());
}

Example 27 with SourcePathRuleFinder

use of com.facebook.buck.rules.SourcePathRuleFinder in project buck by facebook.

the class AppleDescriptions method createAppleBundle.

static AppleBundle createAppleBundle(FlavorDomain<CxxPlatform> cxxPlatformFlavorDomain, CxxPlatform defaultCxxPlatform, FlavorDomain<AppleCxxPlatform> appleCxxPlatforms, TargetGraph targetGraph, BuildRuleParams params, BuildRuleResolver resolver, CodeSignIdentityStore codeSignIdentityStore, ProvisioningProfileStore provisioningProfileStore, BuildTarget binary, Either<AppleBundleExtension, String> extension, Optional<String> productName, final SourcePath infoPlist, ImmutableMap<String, String> infoPlistSubstitutions, ImmutableSortedSet<BuildTarget> deps, ImmutableSortedSet<BuildTarget> tests, AppleDebugFormat debugFormat, boolean dryRunCodeSigning, boolean cacheable) throws NoSuchBuildTargetException {
    AppleCxxPlatform appleCxxPlatform = ApplePlatforms.getAppleCxxPlatformForBuildTarget(cxxPlatformFlavorDomain, defaultCxxPlatform, appleCxxPlatforms, params.getBuildTarget(), MultiarchFileInfos.create(appleCxxPlatforms, params.getBuildTarget()));
    AppleBundleDestinations destinations;
    if (extension.isLeft() && extension.getLeft().equals(AppleBundleExtension.FRAMEWORK)) {
        destinations = AppleBundleDestinations.platformFrameworkDestinations(appleCxxPlatform.getAppleSdk().getApplePlatform());
    } else {
        destinations = AppleBundleDestinations.platformDestinations(appleCxxPlatform.getAppleSdk().getApplePlatform());
    }
    AppleBundleResources collectedResources = AppleResources.collectResourceDirsAndFiles(targetGraph, Optional.empty(), targetGraph.get(params.getBuildTarget()));
    ImmutableSet.Builder<SourcePath> frameworksBuilder = ImmutableSet.builder();
    if (INCLUDE_FRAMEWORKS.getRequiredValue(params.getBuildTarget())) {
        for (BuildTarget dep : deps) {
            Optional<FrameworkDependencies> frameworkDependencies = resolver.requireMetadata(BuildTarget.builder(dep).addFlavors(FRAMEWORK_FLAVOR).addFlavors(NO_INCLUDE_FRAMEWORKS_FLAVOR).addFlavors(appleCxxPlatform.getCxxPlatform().getFlavor()).build(), FrameworkDependencies.class);
            if (frameworkDependencies.isPresent()) {
                frameworksBuilder.addAll(frameworkDependencies.get().getSourcePaths());
            }
        }
    }
    ImmutableSet<SourcePath> frameworks = frameworksBuilder.build();
    SourcePathRuleFinder ruleFinder = new SourcePathRuleFinder(resolver);
    SourcePathResolver sourcePathResolver = new SourcePathResolver(ruleFinder);
    BuildRuleParams paramsWithoutBundleSpecificFlavors = stripBundleSpecificFlavors(params);
    Optional<AppleAssetCatalog> assetCatalog = createBuildRuleForTransitiveAssetCatalogDependencies(targetGraph, paramsWithoutBundleSpecificFlavors, sourcePathResolver, appleCxxPlatform.getAppleSdk().getApplePlatform(), appleCxxPlatform.getActool());
    addToIndex(resolver, assetCatalog);
    Optional<CoreDataModel> coreDataModel = createBuildRulesForCoreDataDependencies(targetGraph, paramsWithoutBundleSpecificFlavors, AppleBundle.getBinaryName(params.getBuildTarget(), productName), appleCxxPlatform);
    addToIndex(resolver, coreDataModel);
    Optional<SceneKitAssets> sceneKitAssets = createBuildRulesForSceneKitAssetsDependencies(targetGraph, paramsWithoutBundleSpecificFlavors, appleCxxPlatform);
    addToIndex(resolver, sceneKitAssets);
    // TODO(bhamiltoncx): Sort through the changes needed to make project generation work with
    // binary being optional.
    BuildRule flavoredBinaryRule = getFlavoredBinaryRule(cxxPlatformFlavorDomain, defaultCxxPlatform, targetGraph, paramsWithoutBundleSpecificFlavors.getBuildTarget().getFlavors(), resolver, binary);
    if (!AppleDebuggableBinary.isBuildRuleDebuggable(flavoredBinaryRule)) {
        debugFormat = AppleDebugFormat.NONE;
    }
    BuildTarget unstrippedTarget = flavoredBinaryRule.getBuildTarget().withoutFlavors(CxxStrip.RULE_FLAVOR, AppleDebuggableBinary.RULE_FLAVOR, AppleBinaryDescription.APP_FLAVOR).withoutFlavors(StripStyle.FLAVOR_DOMAIN.getFlavors()).withoutFlavors(AppleDebugFormat.FLAVOR_DOMAIN.getFlavors()).withoutFlavors(AppleDebuggableBinary.RULE_FLAVOR).withoutFlavors(ImmutableSet.of(AppleBinaryDescription.APP_FLAVOR));
    Optional<LinkerMapMode> linkerMapMode = LinkerMapMode.FLAVOR_DOMAIN.getValue(params.getBuildTarget());
    if (linkerMapMode.isPresent()) {
        unstrippedTarget = unstrippedTarget.withAppendedFlavors(linkerMapMode.get().getFlavor());
    }
    BuildRule unstrippedBinaryRule = resolver.requireRule(unstrippedTarget);
    BuildRule targetDebuggableBinaryRule;
    Optional<AppleDsym> appleDsym;
    if (unstrippedBinaryRule instanceof ProvidesLinkedBinaryDeps) {
        BuildTarget binaryBuildTarget = getBinaryFromBuildRuleWithBinary(flavoredBinaryRule).getBuildTarget().withoutFlavors(AppleDebugFormat.FLAVOR_DOMAIN.getFlavors());
        BuildRuleParams binaryParams = params.withBuildTarget(binaryBuildTarget);
        targetDebuggableBinaryRule = createAppleDebuggableBinary(binaryParams, resolver, getBinaryFromBuildRuleWithBinary(flavoredBinaryRule), (ProvidesLinkedBinaryDeps) unstrippedBinaryRule, debugFormat, cxxPlatformFlavorDomain, defaultCxxPlatform, appleCxxPlatforms);
        appleDsym = createAppleDsymForDebugFormat(debugFormat, binaryParams, resolver, (ProvidesLinkedBinaryDeps) unstrippedBinaryRule, cxxPlatformFlavorDomain, defaultCxxPlatform, appleCxxPlatforms);
    } else {
        targetDebuggableBinaryRule = unstrippedBinaryRule;
        appleDsym = Optional.empty();
    }
    BuildRuleParams bundleParamsWithFlavoredBinaryDep = getBundleParamsWithUpdatedDeps(params, binary, ImmutableSet.<BuildRule>builder().add(targetDebuggableBinaryRule).addAll(OptionalCompat.asSet(assetCatalog)).addAll(OptionalCompat.asSet(coreDataModel)).addAll(OptionalCompat.asSet(sceneKitAssets)).addAll(BuildRules.toBuildRulesFor(params.getBuildTarget(), resolver, RichStream.from(collectedResources.getAll()).concat(frameworks.stream()).filter(BuildTargetSourcePath.class).map(BuildTargetSourcePath::getTarget).collect(MoreCollectors.toImmutableSet()))).addAll(OptionalCompat.asSet(appleDsym)).build());
    ImmutableMap<SourcePath, String> extensionBundlePaths = collectFirstLevelAppleDependencyBundles(params.getDeps(), destinations);
    return new AppleBundle(bundleParamsWithFlavoredBinaryDep, resolver, extension, productName, infoPlist, infoPlistSubstitutions, Optional.of(getBinaryFromBuildRuleWithBinary(flavoredBinaryRule)), appleDsym, destinations, collectedResources, extensionBundlePaths, frameworks, appleCxxPlatform, assetCatalog, coreDataModel, sceneKitAssets, tests, codeSignIdentityStore, provisioningProfileStore, dryRunCodeSigning, cacheable);
}

Example 28 with SourcePathRuleFinder

use of com.facebook.buck.rules.SourcePathRuleFinder in project buck by facebook.

the class AppleLibraryDescription method createMetadataForLibrary.

<U> Optional<U> createMetadataForLibrary(BuildTarget buildTarget, BuildRuleResolver resolver, Optional<ImmutableMap<BuildTarget, Version>> selectedVersions, AppleNativeTargetDescriptionArg args, Class<U> metadataClass) throws NoSuchBuildTargetException {
    // Forward to C/C++ library description.
    if (CxxLibraryDescription.METADATA_TYPE.containsAnyOf(buildTarget.getFlavors())) {
        CxxLibraryDescription.Arg delegateArg = delegate.createUnpopulatedConstructorArg();
        AppleDescriptions.populateCxxLibraryDescriptionArg(new SourcePathResolver(new SourcePathRuleFinder(resolver)), delegateArg, args, buildTarget);
        return delegate.createMetadata(buildTarget, resolver, delegateArg, selectedVersions, metadataClass);
    }
    if (metadataClass.isAssignableFrom(FrameworkDependencies.class) && buildTarget.getFlavors().contains(AppleDescriptions.FRAMEWORK_FLAVOR)) {
        Optional<Flavor> cxxPlatformFlavor = delegate.getCxxPlatforms().getFlavor(buildTarget);
        Preconditions.checkState(cxxPlatformFlavor.isPresent(), "Could not find cxx platform in:\n%s", Joiner.on(", ").join(buildTarget.getFlavors()));
        ImmutableSet.Builder<SourcePath> sourcePaths = ImmutableSet.builder();
        for (BuildTarget dep : args.deps) {
            Optional<FrameworkDependencies> frameworks = resolver.requireMetadata(BuildTarget.builder(dep).addFlavors(AppleDescriptions.FRAMEWORK_FLAVOR).addFlavors(AppleDescriptions.NO_INCLUDE_FRAMEWORKS_FLAVOR).addFlavors(cxxPlatformFlavor.get()).build(), FrameworkDependencies.class);
            if (frameworks.isPresent()) {
                sourcePaths.addAll(frameworks.get().getSourcePaths());
            }
        }
        // Not all parts of Buck use require yet, so require the rule here so it's available in the
        // resolver for the parts that don't.
        BuildRule buildRule = resolver.requireRule(buildTarget);
        sourcePaths.add(buildRule.getSourcePathToOutput());
        return Optional.of(metadataClass.cast(FrameworkDependencies.of(sourcePaths.build())));
    }
    return Optional.empty();
}

Example 29 with SourcePathRuleFinder

use of com.facebook.buck.rules.SourcePathRuleFinder in project buck by facebook.

the class RobolectricTestDescription method createBuildRule.

@Override
public <A extends Arg> BuildRule createBuildRule(TargetGraph targetGraph, BuildRuleParams params, BuildRuleResolver resolver, A args) throws NoSuchBuildTargetException {
    SourcePathRuleFinder ruleFinder = new SourcePathRuleFinder(resolver);
    JavacOptions javacOptions = JavacOptionsFactory.create(templateOptions, params, resolver, ruleFinder, args);
    AndroidLibraryGraphEnhancer graphEnhancer = new AndroidLibraryGraphEnhancer(params.getBuildTarget(), params.copyReplacingExtraDeps(Suppliers.ofInstance(resolver.getAllRules(args.exportedDeps))), javacOptions, DependencyMode.TRANSITIVE, /* forceFinalResourceIds */
    true, /* resourceUnionPackage */
    Optional.empty(), /* rName */
    Optional.empty(), args.useOldStyleableFormat);
    if (CalculateAbi.isAbiTarget(params.getBuildTarget())) {
        if (params.getBuildTarget().getFlavors().contains(AndroidLibraryGraphEnhancer.DUMMY_R_DOT_JAVA_FLAVOR)) {
            return graphEnhancer.getBuildableForAndroidResourcesAbi(resolver, ruleFinder);
        }
        BuildTarget testTarget = CalculateAbi.getLibraryTarget(params.getBuildTarget());
        BuildRule testRule = resolver.requireRule(testTarget);
        return CalculateAbi.of(params.getBuildTarget(), ruleFinder, params, Preconditions.checkNotNull(testRule.getSourcePathToOutput()));
    }
    ImmutableList<String> vmArgs = args.vmArgs;
    Optional<DummyRDotJava> dummyRDotJava = graphEnhancer.getBuildableForAndroidResources(resolver, /* createBuildableIfEmpty */
    true);
    ImmutableSet<Either<SourcePath, Path>> additionalClasspathEntries = ImmutableSet.of();
    if (dummyRDotJava.isPresent()) {
        additionalClasspathEntries = ImmutableSet.of(Either.ofLeft(dummyRDotJava.get().getSourcePathToOutput()));
        ImmutableSortedSet<BuildRule> newExtraDeps = ImmutableSortedSet.<BuildRule>naturalOrder().addAll(params.getExtraDeps().get()).add(dummyRDotJava.get()).build();
        params = params.copyReplacingExtraDeps(Suppliers.ofInstance(newExtraDeps));
    }
    SourcePathResolver pathResolver = new SourcePathResolver(ruleFinder);
    JavaTestDescription.CxxLibraryEnhancement cxxLibraryEnhancement = new JavaTestDescription.CxxLibraryEnhancement(params, args.useCxxLibraries, args.cxxLibraryWhitelist, resolver, ruleFinder, cxxPlatform);
    params = cxxLibraryEnhancement.updatedParams;
    // Rewrite dependencies on tests to actually depend on the code which backs the test.
    BuildRuleParams testsLibraryParams = params.copyReplacingDeclaredAndExtraDeps(Suppliers.ofInstance(ImmutableSortedSet.<BuildRule>naturalOrder().addAll(params.getDeclaredDeps().get()).addAll(BuildRules.getExportedRules(Iterables.concat(params.getDeclaredDeps().get(), resolver.getAllRules(args.providedDeps)))).build()), Suppliers.ofInstance(ImmutableSortedSet.<BuildRule>naturalOrder().addAll(params.getExtraDeps().get()).addAll(ruleFinder.filterBuildRuleInputs(javacOptions.getInputs(ruleFinder))).build())).withAppendedFlavor(JavaTest.COMPILED_TESTS_LIBRARY_FLAVOR);
    JavaLibrary testsLibrary = resolver.addToIndex(new DefaultJavaLibrary(testsLibraryParams, pathResolver, ruleFinder, args.srcs, validateResources(pathResolver, params.getProjectFilesystem(), args.resources), javacOptions.getGeneratedSourceFolderName(), args.proguardConfig, /* postprocessClassesCommands */
    ImmutableList.of(), /* exportDeps */
    ImmutableSortedSet.of(), /* providedDeps */
    resolver.getAllRules(args.providedDeps), JavaLibraryRules.getAbiInputs(resolver, testsLibraryParams.getDeps()), javacOptions.trackClassUsage(), additionalClasspathEntries, new JavacToJarStepFactory(javacOptions, new BootClasspathAppender()), args.resourcesRoot, args.manifestFile, args.mavenCoords, /* tests */
    ImmutableSortedSet.of(), /* classesToRemoveFromJar */
    ImmutableSet.of()));
    return new RobolectricTest(params.copyReplacingDeclaredAndExtraDeps(Suppliers.ofInstance(ImmutableSortedSet.of(testsLibrary)), Suppliers.ofInstance(ImmutableSortedSet.of())), ruleFinder, testsLibrary, additionalClasspathEntries, args.labels, args.contacts, TestType.JUNIT, javaOptions, vmArgs, cxxLibraryEnhancement.nativeLibsEnvironment, dummyRDotJava, args.testRuleTimeoutMs.map(Optional::of).orElse(defaultTestRuleTimeoutMs), args.testCaseTimeoutMs, args.env, args.getRunTestSeparately(), args.getForkMode(), args.stdOutLogLevel, args.stdErrLogLevel, args.robolectricRuntimeDependency, args.robolectricManifest);
}

Example 30 with SourcePathRuleFinder

use of com.facebook.buck.rules.SourcePathRuleFinder in project buck by facebook.

the class JavaBuildGraphProcessor method run.

/**
   * Creates the appropriate target graph and other resources needed for the {@link Processor} and
   * runs it. This method will take responsibility for cleaning up the executor service after it
   * runs.
   */
static void run(final CommandRunnerParams params, final AbstractCommand command, final Processor processor) throws ExitCodeException, InterruptedException, IOException {
    final ConcurrencyLimit concurrencyLimit = command.getConcurrencyLimit(params.getBuckConfig());
    try (CommandThreadManager pool = new CommandThreadManager(command.getClass().getName(), concurrencyLimit)) {
        Cell cell = params.getCell();
        WeightedListeningExecutorService executorService = pool.getExecutor();
        // Ideally, we should be able to construct the TargetGraph quickly assuming most of it is
        // already in memory courtesy of buckd. Though we could make a performance optimization where
        // we pass an option to buck.py that tells it to ignore reading the BUCK.autodeps files when
        // parsing the BUCK files because we never need to consider the existing auto-generated deps
        // when creating the new auto-generated deps. If we did so, we would have to make sure to keep
        // the nodes for that version of the graph separate from the ones that are actually used for
        // building.
        TargetGraph graph;
        try {
            graph = params.getParser().buildTargetGraphForTargetNodeSpecs(params.getBuckEventBus(), cell, command.getEnableParserProfiling(), executorService, ImmutableList.of(TargetNodePredicateSpec.of(x -> true, BuildFileSpec.fromRecursivePath(Paths.get(""), cell.getRoot()))), /* ignoreBuckAutodepsFiles */
            true).getTargetGraph();
        } catch (BuildTargetException | BuildFileParseException e) {
            params.getBuckEventBus().post(ConsoleEvent.severe(MoreExceptions.getHumanReadableOrLocalizedMessage(e)));
            throw new ExitCodeException(1);
        }
        BuildRuleResolver buildRuleResolver = new BuildRuleResolver(graph, new DefaultTargetNodeToBuildRuleTransformer());
        CachingBuildEngineBuckConfig cachingBuildEngineBuckConfig = params.getBuckConfig().getView(CachingBuildEngineBuckConfig.class);
        LocalCachingBuildEngineDelegate cachingBuildEngineDelegate = new LocalCachingBuildEngineDelegate(params.getFileHashCache());
        BuildEngine buildEngine = new CachingBuildEngine(cachingBuildEngineDelegate, executorService, executorService, new DefaultStepRunner(), CachingBuildEngine.BuildMode.SHALLOW, cachingBuildEngineBuckConfig.getBuildDepFiles(), cachingBuildEngineBuckConfig.getBuildMaxDepFileCacheEntries(), cachingBuildEngineBuckConfig.getBuildArtifactCacheSizeLimit(), params.getObjectMapper(), buildRuleResolver, cachingBuildEngineBuckConfig.getResourceAwareSchedulingInfo(), new RuleKeyFactoryManager(params.getBuckConfig().getKeySeed(), fs -> cachingBuildEngineDelegate.getFileHashCache(), buildRuleResolver, cachingBuildEngineBuckConfig.getBuildInputRuleKeyFileSizeLimit(), new DefaultRuleKeyCache<>()));
        // Create a BuildEngine because we store symbol information as build artifacts.
        BuckEventBus eventBus = params.getBuckEventBus();
        ExecutionContext executionContext = ExecutionContext.builder().setConsole(params.getConsole()).setConcurrencyLimit(concurrencyLimit).setBuckEventBus(eventBus).setEnvironment(/* environment */
        ImmutableMap.of()).setExecutors(ImmutableMap.<ExecutorPool, ListeningExecutorService>of(ExecutorPool.CPU, executorService)).setJavaPackageFinder(params.getJavaPackageFinder()).setObjectMapper(params.getObjectMapper()).setPlatform(params.getPlatform()).setCellPathResolver(params.getCell().getCellPathResolver()).build();
        SourcePathResolver pathResolver = new SourcePathResolver(new SourcePathRuleFinder(buildRuleResolver));
        BuildEngineBuildContext buildContext = BuildEngineBuildContext.builder().setBuildContext(BuildContext.builder().setActionGraph(new ActionGraph(ImmutableList.of())).setSourcePathResolver(pathResolver).setJavaPackageFinder(executionContext.getJavaPackageFinder()).setEventBus(eventBus).build()).setClock(params.getClock()).setArtifactCache(params.getArtifactCacheFactory().newInstance()).setBuildId(eventBus.getBuildId()).setObjectMapper(params.getObjectMapper()).setEnvironment(executionContext.getEnvironment()).setKeepGoing(false).build();
        // Traverse the TargetGraph to find all of the auto-generated dependencies.
        JavaDepsFinder javaDepsFinder = JavaDepsFinder.createJavaDepsFinder(params.getBuckConfig(), params.getCell().getCellPathResolver(), params.getObjectMapper(), buildContext, executionContext, buildEngine);
        processor.process(graph, javaDepsFinder, executorService);
    }
}