com.google.devtools.build.xcode.actoolzip.ActoolZip.java Source code

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Here is the source code for com.google.devtools.build.xcode.actoolzip.ActoolZip.java

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// Copyright 2014 Google Inc. 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.xcode.actoolzip;

import com.google.common.base.Optional;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Iterables;
import com.google.devtools.build.xcode.zippingoutput.Arguments;
import com.google.devtools.build.xcode.zippingoutput.Wrapper;
import com.google.devtools.build.xcode.zippingoutput.Wrappers;
import com.google.devtools.build.xcode.zippingoutput.Wrappers.CommandFailedException;
import com.google.devtools.build.xcode.zippingoutput.Wrappers.OutErr;

import java.io.File;
import java.io.IOException;
import java.util.Set;

/**
 * A tool which wraps actool by running actool and zipping its output. See the JavaDoc for
 * {@link Wrapper} for more information.
 */
public class ActoolZip implements Wrapper {

    @Override
    public String name() {
        return "ActoolZip";
    }

    @Override
    public String subtoolName() {
        return "actool";
    }

    @Override
    public Iterable<String> subCommand(Arguments args, String outputDirectory) {
        return new ImmutableList.Builder<String>().add(args.subtoolCmd()).add("--compile").add(outputDirectory)
                // actool munges paths in some way which doesn't work if one of the directories in the path
                // is a symlink.
                .addAll(Iterables.transform(args.subtoolExtraArgs(), Wrappers.CANONICALIZE_IF_PATH)).build();
    }

    public static void main(String[] args) throws IOException, InterruptedException {
        Optional<File> infoPlistPath = replaceInfoPlistPath(args);
        try {
            OutErr outErr = Wrappers.executeCapturingOutput(args, new ActoolZip());
            if (infoPlistPath.isPresent() && !infoPlistPath.get().exists()) {
                outErr.print();
                System.exit(1);
            }
        } catch (CommandFailedException e) {
            Wrappers.handleException(e);
        }
    }

    /**
     * Absolute-ify output partial info plist's path.
     *
     * <p>actool occasionally writes the partial info plist file to the wrong directory if a
     * non-absolute path is passed as --output-partial-info-plist, so we optimistically try to
     * absolute-ify its path. This isn't caught by the "CANONICAL_PATH" transform above, because the
     * file doesn't exist at the time of flag parsing.
     *
     * <p>Modifies args in-place.
     *
     * @return new value of the output-partial-info-plist flag.
     */
    private static Optional<File> replaceInfoPlistPath(String[] args) {
        String flag = "output-partial-info-plist";
        Set<String> flagOptions = ImmutableSet.of("-" + flag, "--" + flag);
        Optional<File> newPath = Optional.absent();
        for (int i = 0; i < args.length; ++i) {
            for (String flagOption : flagOptions) {
                String arg = args[i];
                String flagEquals = flagOption + "=";
                if (arg.startsWith(flagEquals)) {
                    newPath = Optional.of(new File(arg.substring(flagEquals.length())));
                    args[i] = flagEquals + newPath.get().getAbsolutePath();
                }
                if (arg.equals(flagOption) && i + 1 < args.length) {
                    newPath = Optional.of(new File(args[i + 1]));
                    args[i + 1] = newPath.get().getAbsolutePath();
                }
            }
        }
        return newPath;
    }

    @Override
    public boolean outputDirectoryMustExist() {
        return true;
    }
}