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// Copyright 2014 The Bazel Authors. All rights reserved.
//
// 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.google.devtools.build.lib.rules.objc;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.ImmutableSetMultimap;
import com.google.common.collect.Multimap;
import com.google.devtools.build.lib.actions.Artifact;
import com.google.devtools.build.lib.util.FileType;
import com.google.devtools.build.lib.vfs.PathFragment;
import java.util.Collection;
import java.util.Map;
/**
* Utility code for getting information specific to xcdatamodels for a single rule.
*/
class Xcdatamodels {
private Xcdatamodels() {}
static final ImmutableList<FileType> CONTAINER_TYPES =
ImmutableList.of(FileType.of(".xcdatamodeld"), FileType.of(".xcdatamodel"));
static Iterable<PathFragment> datamodelDirs(Iterable<Artifact> xcdatamodels) {
ImmutableSet.Builder<PathFragment> result = new ImmutableSet.Builder<>();
for (Collection<Artifact> artifacts : byContainer(xcdatamodels).asMap().values()) {
result.addAll(ObjcCommon.uniqueContainers(artifacts, FileType.of(".xcdatamodel")));
}
return result.build();
}
static Iterable<Xcdatamodel> xcdatamodels(
IntermediateArtifacts intermediateArtifacts, Iterable<Artifact> xcdatamodels) {
ImmutableSet.Builder<Xcdatamodel> result = new ImmutableSet.Builder<>();
Multimap<PathFragment, Artifact> artifactsByContainer = byContainer(xcdatamodels);
for (Map.Entry<PathFragment, Collection<Artifact>> modelDirEntry :
artifactsByContainer.asMap().entrySet()) {
PathFragment container = modelDirEntry.getKey();
Artifact outputZip = intermediateArtifacts.compiledMomZipArtifact(container);
result.add(
new Xcdatamodel(outputZip, ImmutableSet.copyOf(modelDirEntry.getValue()), container));
}
return result.build();
}
/**
* Arrange a sequence of artifacts into entries of a multimap by their nearest container
* directory, preferring {@code .xcdatamodeld} over {@code .xcdatamodel}.
* If an artifact is not inside any containing directory, then it is not present in the returned
* map.
*/
static Multimap<PathFragment, Artifact> byContainer(Iterable<Artifact> artifacts) {
ImmutableSetMultimap.Builder<PathFragment, Artifact> result =
new ImmutableSetMultimap.Builder<>();
for (Artifact artifact : artifacts) {
for (PathFragment modelDir :
ObjcCommon.nearestContainerMatching(CONTAINER_TYPES, artifact).asSet()) {
result.put(modelDir, artifact);
}
}
return result.build();
}
}
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