com.facebook.buck.d.DCompileBuildRule.java Source code

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Here is the source code for com.facebook.buck.d.DCompileBuildRule.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.d;

import com.facebook.buck.model.BuildTargets;
import com.facebook.buck.rules.AbstractBuildRuleWithResolver;
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.BuildableProperties;
import com.facebook.buck.rules.SourcePath;
import com.facebook.buck.rules.SourcePathResolver;
import com.facebook.buck.rules.Tool;
import com.facebook.buck.step.Step;
import com.facebook.buck.step.fs.MkdirStep;
import com.google.common.base.Preconditions;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSortedSet;

import java.nio.file.Path;

/**
 * A build rule for invoking the D compiler.
 */
public class DCompileBuildRule extends AbstractBuildRuleWithResolver {

    @AddToRuleKey
    private final Tool compiler;

    @AddToRuleKey
    private final ImmutableList<String> compilerFlags;

    @AddToRuleKey
    private final String name;

    @AddToRuleKey
    private final ImmutableSortedSet<SourcePath> sources;

    @AddToRuleKey
    private final ImmutableList<DIncludes> includes;

    public DCompileBuildRule(BuildRuleParams buildRuleParams, SourcePathResolver resolver, Tool compiler,
            ImmutableList<String> compilerFlags, String name, ImmutableSortedSet<SourcePath> sources,
            ImmutableList<DIncludes> includes) {
        super(buildRuleParams, resolver);
        this.compiler = compiler;
        this.compilerFlags = compilerFlags;
        this.name = name;
        this.sources = sources;
        this.includes = includes;
    }

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

        ImmutableList.Builder<Step> steps = ImmutableList.builder();
        steps.add(new MkdirStep(getProjectFilesystem(), Preconditions.checkNotNull(getPathToOutput()).getParent()));

        ImmutableList.Builder<String> flagsBuilder = ImmutableList.builder();
        flagsBuilder.addAll(compilerFlags);
        for (DIncludes include : includes) {
            flagsBuilder.add("-I" + getResolver().getAbsolutePath(include.getLinkTree()));
        }
        ImmutableList<String> flags = flagsBuilder.build();

        steps.add(new DCompileStep(getProjectFilesystem().getRootPath(), compiler.getEnvironment(),
                compiler.getCommandPrefix(getResolver()), flags, getPathToOutput(),
                getResolver().getAllAbsolutePaths(sources)));
        return steps.build();
    }

    @Override
    public Path getPathToOutput() {
        return BuildTargets.getGenPath(getProjectFilesystem(), getBuildTarget(), "%s/" + name + ".o");
    }

    @Override
    public BuildableProperties getProperties() {
        return new BuildableProperties(BuildableProperties.Kind.LIBRARY);
    }

}