/*
* 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.jvm.java;
import static com.facebook.buck.zip.ZipCompressionLevel.DEFAULT_COMPRESSION_LEVEL;
import com.facebook.buck.jvm.core.JavaPackageFinder;
import com.facebook.buck.model.BuildTarget;
import com.facebook.buck.model.BuildTargets;
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.ExplicitBuildTargetSourcePath;
import com.facebook.buck.rules.SourcePath;
import com.facebook.buck.step.Step;
import com.facebook.buck.step.fs.CopyStep;
import com.facebook.buck.step.fs.MakeCleanDirectoryStep;
import com.facebook.buck.step.fs.MkdirStep;
import com.facebook.buck.step.fs.RmStep;
import com.facebook.buck.zip.ZipStep;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.ImmutableSortedSet;
import com.google.common.collect.Sets;
import java.nio.file.Path;
import java.util.Optional;
import java.util.Set;
public class JavaSourceJar extends AbstractBuildRule implements HasMavenCoordinates, HasSources {
@AddToRuleKey private final ImmutableSortedSet<SourcePath> sources;
private final Path output;
private final Path temp;
private final Optional<String> mavenCoords;
public JavaSourceJar(
BuildRuleParams params,
ImmutableSortedSet<SourcePath> sources,
Optional<String> mavenCoords) {
super(params);
this.sources = sources;
BuildTarget target = params.getBuildTarget();
this.output = BuildTargets.getGenPath(getProjectFilesystem(), target, "%s" + Javac.SRC_JAR);
this.temp = BuildTargets.getScratchPath(getProjectFilesystem(), target, "%s-srcs");
this.mavenCoords = mavenCoords;
}
@Override
public ImmutableList<Step> getBuildSteps(
BuildContext context, BuildableContext buildableContext) {
JavaPackageFinder packageFinder = context.getJavaPackageFinder();
ImmutableList.Builder<Step> steps = ImmutableList.builder();
steps.add(MkdirStep.of(getProjectFilesystem(), output.getParent()));
steps.add(RmStep.of(getProjectFilesystem(), output));
steps.addAll(MakeCleanDirectoryStep.of(getProjectFilesystem(), temp));
Set<Path> seenPackages = Sets.newHashSet();
// We only want to consider raw source files, since the java package finder doesn't have the
// smarts to read the "package" line from a source file.
for (Path source : context.getSourcePathResolver().filterInputsToCompareToOutput(sources)) {
Path packageFolder = packageFinder.findJavaPackageFolder(source);
Path packageDir = temp.resolve(packageFolder);
if (seenPackages.add(packageDir)) {
steps.add(MkdirStep.of(getProjectFilesystem(), packageDir));
}
steps.add(
CopyStep.forFile(
getProjectFilesystem(), source, packageDir.resolve(source.getFileName())));
}
steps.add(
new ZipStep(
getProjectFilesystem(),
output,
ImmutableSet.of(),
/* junk paths */ false,
DEFAULT_COMPRESSION_LEVEL,
temp));
buildableContext.recordArtifact(output);
return steps.build();
}
@Override
public ImmutableSortedSet<SourcePath> getSources() {
return sources;
}
@Override
public SourcePath getSourcePathToOutput() {
return new ExplicitBuildTargetSourcePath(getBuildTarget(), output);
}
@Override
public Optional<String> getMavenCoords() {
return mavenCoords;
}
}