com.facebook.buck.rules.args.SourcePathArg.java Source code

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Here is the source code for com.facebook.buck.rules.args.SourcePathArg.java

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/*
 * Copyright 2015-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.rules.args;

import com.facebook.buck.rules.BuildRule;
import com.facebook.buck.rules.BuildTargetSourcePath;
import com.facebook.buck.rules.RuleKeyObjectSink;
import com.facebook.buck.rules.SourcePath;
import com.facebook.buck.rules.SourcePathResolver;
import com.facebook.buck.rules.SourcePathRuleFinder;
import com.google.common.collect.ImmutableCollection;
import com.google.common.collect.ImmutableList;

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

/**
 * An {@link Arg} which wraps a {@link SourcePath}.
 */
public class SourcePathArg extends Arg implements HasSourcePath {

    private final SourcePathResolver pathResolver;
    private final SourcePath path;

    public SourcePathArg(SourcePathResolver pathResolver, SourcePath path) {
        this.pathResolver = pathResolver;
        this.path = path;
    }

    @Override
    public void appendToCommandLine(ImmutableCollection.Builder<String> builder) {
        builder.add(pathResolver.getAbsolutePath(path).toString());
    }

    public void appendToCommandLineRel(ImmutableCollection.Builder<String> builder, Path cellPath) {
        if (path instanceof BuildTargetSourcePath
                && cellPath.equals(((BuildTargetSourcePath) path).getTarget().getCellPath())) {
            builder.add(pathResolver.getRelativePath(path).toString());
        } else {
            appendToCommandLine(builder);
        }

    }

    @Override
    public ImmutableCollection<BuildRule> getDeps(SourcePathRuleFinder ruleFinder) {
        return ruleFinder.filterBuildRuleInputs(path);
    }

    @Override
    public ImmutableCollection<SourcePath> getInputs() {
        return ImmutableList.of(path);
    }

    @Override
    public void appendToRuleKey(RuleKeyObjectSink sink) {
        sink.setReflectively("arg", path);
    }

    @Override
    public String toString() {
        return path.toString();
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }
        if (!(o instanceof SourcePathArg)) {
            return false;
        }
        SourcePathArg that = (SourcePathArg) o;
        return Objects.equals(path, that.path);
    }

    @Override
    public int hashCode() {
        return Objects.hash(path);
    }

    public static ImmutableList<Arg> from(SourcePathResolver pathResolver, Iterable<SourcePath> paths) {
        ImmutableList.Builder<Arg> converted = ImmutableList.builder();
        for (SourcePath path : paths) {
            converted.add(new SourcePathArg(pathResolver, path));
        }
        return converted.build();
    }

    public static ImmutableList<Arg> from(SourcePathResolver pathResolver, SourcePath... paths) {
        return from(pathResolver, ImmutableList.copyOf(paths));
    }

    @Override
    public SourcePath getPath() {
        return path;
    }

    @Override
    public SourcePathResolver getPathResolver() {
        return pathResolver;
    }
}