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

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Here is the source code for com.facebook.buck.apple.FatBinary.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.apple;

import com.facebook.buck.rules.AbstractBuildRule;
import com.facebook.buck.rules.AddToRuleKey;
import com.facebook.buck.rules.BuildContext;
import com.facebook.buck.rules.BuildRuleParams;
import com.facebook.buck.rules.BuildableContext;
import com.facebook.buck.rules.SourcePath;
import com.facebook.buck.rules.SourcePathResolver;
import com.facebook.buck.rules.Tool;
import com.facebook.buck.shell.DefaultShellStep;
import com.facebook.buck.step.Step;
import com.facebook.buck.step.fs.MkdirStep;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSortedSet;

import java.nio.file.Path;
import java.util.SortedSet;

/**
 * Puts together multiple thin binaries into a fat binary.
 */
public class FatBinary extends AbstractBuildRule {

    @AddToRuleKey
    private final Tool lipo;

    @AddToRuleKey
    private final ImmutableSortedSet<SourcePath> thinBinaries;

    @AddToRuleKey(stringify = true)
    private final Path output;

    public FatBinary(BuildRuleParams buildRuleParams, SourcePathResolver resolver, Tool lipo,
            SortedSet<SourcePath> thinBinaries, Path output) {
        super(buildRuleParams, resolver);
        this.lipo = lipo;
        this.thinBinaries = ImmutableSortedSet.copyOf(thinBinaries);
        this.output = output;
    }

    @Override
    public ImmutableList<Step> getBuildSteps(BuildContext context, BuildableContext buildableContext) {
        buildableContext.recordArtifact(output);

        ImmutableList.Builder<String> commandBuilder = ImmutableList.builder();
        commandBuilder.addAll(lipo.getCommandPrefix(getResolver()));
        commandBuilder.add("-create", "-output", getProjectFilesystem().resolve(output).toString());
        for (SourcePath thinBinary : thinBinaries) {
            commandBuilder.add(getResolver().getAbsolutePath(thinBinary).toString());
        }
        return ImmutableList.<Step>of(new MkdirStep(getProjectFilesystem(), output.getParent()),
                new DefaultShellStep(getProjectFilesystem().getRootPath(), commandBuilder.build(),
                        lipo.getEnvironment(getResolver())));
    }

    @Override
    public Path getPathToOutput() {
        return output;
    }
}