com.facebook.buck.features.filebundler.ZipFileExtractor.java Source code

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Here is the source code for com.facebook.buck.features.filebundler.ZipFileExtractor.java

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/*
 * Copyright 2014-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.features.filebundler;

import static com.facebook.buck.features.filebundler.FileBundler.createRelativeMap;

import com.facebook.buck.core.model.BuildTarget;
import com.facebook.buck.core.sourcepath.SourcePath;
import com.facebook.buck.core.sourcepath.resolver.SourcePathResolver;
import com.facebook.buck.io.filesystem.ProjectFilesystem;
import com.facebook.buck.step.Step;
import com.facebook.buck.unarchive.UnzipStep;
import com.facebook.buck.util.PatternsMatcher;
import com.google.common.collect.ImmutableList;
import java.nio.file.Path;
import java.util.Map;
import java.util.Objects;
import java.util.Optional;

/** Extracts zip archives with excluding entries matching given patterns. */
public class ZipFileExtractor {

    private ZipFileExtractor() {
    }

    /**
     * Given a list of archive files, generates a list of steps to extract those files in a given
     * location.
     *
     * @param destinationDir location for extracted files.
     * @param entriesToExclude entries that match this matcher will not be extracted.
     */
    public static ImmutableList<Step> extractZipFiles(BuildTarget target, ProjectFilesystem filesystem,
            Path destinationDir, Iterable<SourcePath> toExtract, SourcePathResolver pathResolver,
            PatternsMatcher entriesToExclude) {

        ImmutableList.Builder<Step> steps = ImmutableList.builder();

        Map<Path, Path> relativeMap = createRelativeMap(target.getBasePath(), filesystem, pathResolver, toExtract);

        for (Map.Entry<Path, Path> pathEntry : relativeMap.entrySet()) {
            Path relativePath = pathEntry.getKey();
            Path absolutePath = Objects.requireNonNull(pathEntry.getValue());
            Path destination = destinationDir.resolve(relativePath);

            steps.add(new UnzipStep(filesystem, absolutePath, destination.getParent(), Optional.empty(),
                    entriesToExclude));
        }
        return steps.build();
    }
}