Examples with DepsForBuildFiles com.facebook.buck.autodeps.DepsForBuildFiles used on opensource projects

Example 1 with DepsForBuildFiles

use of com.facebook.buck.autodeps.DepsForBuildFiles in project buck by facebook.

the class AutodepsCommand method generateAutodeps.

private void generateAutodeps(CommandRunnerParams params, ConcurrencyLimit concurrencyLimit, Cell cell, WeightedListeningExecutorService executorService, TargetGraph graph, JavaDepsFinder javaDepsFinder, Console console) {
    DepsForBuildFiles depsForBuildFiles = javaDepsFinder.findDepsForBuildFiles(graph, console);
    // Now that the dependencies have been computed, write out the BUCK.autodeps files.
    int numWritten;
    try {
        numWritten = AutodepsWriter.write(depsForBuildFiles, cell.getBuildFileName(), params.getBuckConfig().getIncludeAutodepsSignature(), params.getObjectMapper(), executorService, concurrencyLimit.threadLimit);
    } catch (ExecutionException e) {
        throw new RuntimeException(e);
    }
    String message = numWritten == 1 ? "1 file written." : numWritten + " files written.";
    console.printSuccess(message);
}

Example 2 with DepsForBuildFiles

use of com.facebook.buck.autodeps.DepsForBuildFiles in project buck by facebook.

the class JavaDepsFinder method findDepsForBuildFiles.

private DepsForBuildFiles findDepsForBuildFiles(final TargetGraph graph, final DependencyInfo dependencyInfo, final Console console) {
    // For the rules that expect to have their deps generated, look through all of their required
    // symbols and try to find the build rule that provides each symbols. Store these build rules in
    // the depsForBuildFiles data structure.
    //
    // Currently, we process each rule with autodeps=True on a single thread. See the class overview
    // for DepsForBuildFiles about what it would take to do this work in a multi-threaded way.
    DepsForBuildFiles depsForBuildFiles = new DepsForBuildFiles();
    for (final TargetNode<?, ?> rule : dependencyInfo.rulesWithAutodeps) {
        final Set<BuildTarget> providedDeps = dependencyInfo.rulesWithAutodepsToProvidedDeps.get(rule);
        final Predicate<TargetNode<?, ?>> isVisibleDepNotAlreadyInProvidedDeps = provider -> provider.isVisibleTo(graph, rule) && !providedDeps.contains(provider.getBuildTarget());
        final boolean isJavaTestRule = rule.getDescription() instanceof JavaTestDescription;
        for (DependencyType type : DependencyType.values()) {
            HashMultimap<TargetNode<?, ?>, String> ruleToSymbolsMap;
            switch(type) {
                case DEPS:
                    ruleToSymbolsMap = dependencyInfo.ruleToRequiredSymbols;
                    break;
                case EXPORTED_DEPS:
                    ruleToSymbolsMap = dependencyInfo.ruleToExportedSymbols;
                    break;
                default:
                    throw new IllegalStateException("Unrecognized type: " + type);
            }
            final DependencyType typeOfDepToAdd;
            if (isJavaTestRule) {
                // java_test rules do not honor exported_deps: add all dependencies to the ordinary deps.
                typeOfDepToAdd = DependencyType.DEPS;
            } else {
                typeOfDepToAdd = type;
            }
            for (String requiredSymbol : ruleToSymbolsMap.get(rule)) {
                BuildTarget provider = findProviderForSymbolFromBuckConfig(requiredSymbol);
                if (provider != null) {
                    depsForBuildFiles.addDep(rule.getBuildTarget(), provider, typeOfDepToAdd);
                    continue;
                }
                Set<TargetNode<?, ?>> providers = dependencyInfo.symbolToProviders.get(requiredSymbol);
                SortedSet<TargetNode<?, ?>> candidateProviders = providers.stream().filter(isVisibleDepNotAlreadyInProvidedDeps).collect(MoreCollectors.toImmutableSortedSet(Comparator.<TargetNode<?, ?>>naturalOrder()));
                int numCandidates = candidateProviders.size();
                if (numCandidates == 1) {
                    depsForBuildFiles.addDep(rule.getBuildTarget(), Iterables.getOnlyElement(candidateProviders).getBuildTarget(), typeOfDepToAdd);
                } else if (numCandidates > 1) {
                    // Warn the user that there is an ambiguity. This could be very common with macros that
                    // generate multiple versions of a java_library() with the same sources.
                    // If numProviders is 0, then hopefully the dep is provided by something the user
                    // hardcoded in the BUCK file.
                    console.printErrorText(String.format("WARNING: Multiple providers for %s: %s. " + "Consider adding entry to .buckconfig to eliminate ambiguity:\n" + "[autodeps]\n" + "java-package-mappings = %s => %s", requiredSymbol, Joiner.on(", ").join(candidateProviders), requiredSymbol, Iterables.getFirst(candidateProviders, null)));
                } else {
                    // If there aren't any candidates, then see if there is a visible rule that can provide
                    // the symbol via its exported_deps. We make this a secondary check because we prefer to
                    // depend on the rule that defines the symbol directly rather than one of possibly many
                    // rules that provides it via its exported_deps.
                    ImmutableSortedSet<TargetNode<?, ?>> newCandidates = providers.stream().flatMap(candidate -> dependencyInfo.ruleToRulesThatExportIt.get(candidate).stream()).filter(ruleThatExportsCandidate -> ruleThatExportsCandidate.isVisibleTo(graph, rule)).collect(MoreCollectors.toImmutableSortedSet(Comparator.<TargetNode<?, ?>>naturalOrder()));
                    int numNewCandidates = newCandidates.size();
                    if (numNewCandidates == 1) {
                        depsForBuildFiles.addDep(rule.getBuildTarget(), Iterables.getOnlyElement(newCandidates).getBuildTarget(), typeOfDepToAdd);
                    } else if (numNewCandidates > 1) {
                        console.printErrorText(String.format("WARNING: No providers found for '%s' for build rule %s, " + "but there are multiple rules that export a rule to provide %s: %s", requiredSymbol, rule.getBuildTarget(), requiredSymbol, Joiner.on(", ").join(newCandidates)));
                    }
                // In the case that numNewCandidates is 0, we assume that the user is taking
                // responsibility for declaring a provider for the symbol by hardcoding it in the deps.
                }
            }
        }
    }
    return depsForBuildFiles;
}