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// Copyright 2017 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.android.aapt2;
import static com.google.common.collect.ImmutableList.toImmutableList;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Predicates;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Lists;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Collection;
import java.util.List;
import java.util.Optional;
import java.util.function.Function;
import javax.annotation.Nullable;
/** A static library generated by aapt2. */
public class StaticLibrary {
private final Path library;
private final Optional<Path> rTxt;
private final Optional<List<Path>> assets;
private final Optional<Path> sourceJar;
private StaticLibrary(
Path library, Optional<Path> rTxt, Optional<List<Path>> assets, Optional<Path> sourceJar) {
this.library = library;
this.rTxt = rTxt;
this.assets = assets;
this.sourceJar = sourceJar;
}
public static StaticLibrary from(Path library) {
return of(library, Optional.empty(), Optional.empty(), Optional.empty());
}
public static StaticLibrary from(Path library, Path rTxt) {
return of(library, Optional.of(rTxt), Optional.empty(), Optional.empty());
}
private static StaticLibrary of(
Path library, Optional<Path> rTxt, Optional<List<Path>> assets, Optional<Path> sourceJar) {
return new StaticLibrary(library, rTxt, assets, sourceJar);
}
public static StaticLibrary from(Path library, Path rTxt, ImmutableList<Path> assetDirs) {
return of(library, Optional.ofNullable(rTxt), Optional.ofNullable(assetDirs), Optional.empty());
}
public static StaticLibrary from(
Path library, Path rTxt, ImmutableList<Path> assetDirs, Path sourceJar) {
return of(
library,
Optional.ofNullable(rTxt),
Optional.ofNullable(assetDirs),
Optional.ofNullable(sourceJar));
}
public static Collection<String> toPathStrings(List<StaticLibrary> libraries) {
return Lists.transform(libraries, StaticLibrary::asLibraryPathString);
}
public StaticLibrary copyLibraryTo(Path target) throws IOException {
return of(Files.copy(library, target), rTxt, assets, sourceJar);
}
public StaticLibrary copyRTxtTo(@Nullable final Path target) {
return of(library, rTxt.map(copyTo(target)), assets, sourceJar);
}
public StaticLibrary copySourceJarTo(@Nullable final Path target) {
return of(library, rTxt, assets, sourceJar.map(copyTo(target)));
}
private Function<Path, Path> copyTo(Path target) {
return input -> {
if (target == null) {
return input;
}
try {
return Files.copy(input, target);
} catch (IOException e) {
throw new RuntimeException(e);
}
};
}
@VisibleForTesting
public String asLibraryPathString() {
return fixForAapt2(library).toString();
}
// TODO(b/64140845): aapt2 doesn't recognize .ap_ as a valid library.
private static Path fixForAapt2(Path library) {
if (library.getFileName().toString().endsWith(".ap_")) {
Path fixed = library.resolveSibling(library.getFileName().toString().replace(".ap_", ".apk"));
// The file has already been "fixed"
if (Files.exists(fixed)) {
return fixed;
}
try {
return Files.copy(library, fixed);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
return library;
}
private List<Path> asAssetPathStrings() {
return assets.orElse(ImmutableList.of());
}
public static Collection<String> toAssetPaths(List<StaticLibrary> libraries) {
return libraries
.stream()
.map(StaticLibrary::asAssetPathStrings)
.filter(Predicates.isNull())
.flatMap(List::stream)
.map(Object::toString)
.collect(toImmutableList());
}
}
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