com.facebook.buck.apple.AppleResources.java Source code

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Here is the source code for com.facebook.buck.apple.AppleResources.java

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/*
 * Copyright 2015-present Facebook, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may
 * not use this file except in compliance with the License. You may obtain
 * a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */

package com.facebook.buck.apple;

import com.facebook.buck.io.ProjectFilesystem;
import com.facebook.buck.js.IosReactNativeLibraryDescription;
import com.facebook.buck.js.ReactNativeBundle;
import com.facebook.buck.js.ReactNativeLibraryArgs;
import com.facebook.buck.model.BuildTarget;
import com.facebook.buck.rules.BuildTargetSourcePath;
import com.facebook.buck.rules.Description;
import com.facebook.buck.rules.TargetGraph;
import com.facebook.buck.rules.TargetNode;
import com.google.common.base.Preconditions;
import com.google.common.collect.FluentIterable;
import com.google.common.collect.ImmutableSet;

import java.util.Optional;

public class AppleResources {

    private static final ImmutableSet<Class<? extends Description<?>>> APPLE_RESOURCE_DESCRIPTION_CLASSES = ImmutableSet
            .of(AppleResourceDescription.class, IosReactNativeLibraryDescription.class);

    // Utility class, do not instantiate.
    private AppleResources() {
    }

    /**
     * Collect resources from recursive dependencies.
     *
     * @param targetGraph The {@link TargetGraph} containing the node and its dependencies.
     * @param targetNodes {@link TargetNode} at the tip of the traversal.
     * @return The recursive resource buildables.
     */
    public static ImmutableSet<AppleResourceDescription.Arg> collectRecursiveResources(
            final TargetGraph targetGraph, final Optional<AppleDependenciesCache> cache,
            Iterable<? extends TargetNode<?, ?>> targetNodes) {
        return FluentIterable.from(targetNodes)
                .transformAndConcat(AppleBuildRules.newRecursiveRuleDependencyTransformer(targetGraph, cache,
                        AppleBuildRules.RecursiveDependenciesMode.COPYING,
                        ImmutableSet.of(AppleResourceDescription.class)))
                .transform(input -> (AppleResourceDescription.Arg) input.getConstructorArg()).toSet();
    }

    public static <T> AppleBundleResources collectResourceDirsAndFiles(final TargetGraph targetGraph,
            final Optional<AppleDependenciesCache> cache, TargetNode<T, ?> targetNode) {
        AppleBundleResources.Builder builder = AppleBundleResources.builder();

        Iterable<TargetNode<?, ?>> resourceNodes = AppleBuildRules.getRecursiveTargetNodeDependenciesOfTypes(
                targetGraph, cache, AppleBuildRules.RecursiveDependenciesMode.COPYING, targetNode,
                Optional.of(APPLE_RESOURCE_DESCRIPTION_CLASSES));

        ProjectFilesystem filesystem = targetNode.getFilesystem();

        for (TargetNode<?, ?> resourceNode : resourceNodes) {
            Object constructorArg = resourceNode.getConstructorArg();
            if (constructorArg instanceof AppleResourceDescription.Arg) {
                AppleResourceDescription.Arg appleResource = (AppleResourceDescription.Arg) constructorArg;
                builder.addAllResourceDirs(appleResource.dirs);
                builder.addAllResourceFiles(appleResource.files);
                builder.addAllResourceVariantFiles(appleResource.variants);
            } else {
                Preconditions.checkState(constructorArg instanceof ReactNativeLibraryArgs);
                BuildTarget buildTarget = resourceNode.getBuildTarget();
                builder.addDirsContainingResourceDirs(
                        new BuildTargetSourcePath(buildTarget,
                                ReactNativeBundle.getPathToJSBundleDir(buildTarget, filesystem)),
                        new BuildTargetSourcePath(buildTarget,
                                ReactNativeBundle.getPathToResources(buildTarget, filesystem)));
            }
        }
        return builder.build();
    }

    public static ImmutableSet<AppleResourceDescription.Arg> collectDirectResources(TargetGraph targetGraph,
            TargetNode<?, ?> targetNode) {
        ImmutableSet.Builder<AppleResourceDescription.Arg> builder = ImmutableSet.builder();
        Iterable<TargetNode<?, ?>> deps = targetGraph.getAll(targetNode.getDeps());
        for (TargetNode<?, ?> node : deps) {
            if (node.getDescription() instanceof AppleResourceDescription) {
                builder.add((AppleResourceDescription.Arg) node.getConstructorArg());
            }
        }
        return builder.build();
    }

}