blob: 005d4783876f240f10f893eef45aef011b215108 [file] [log] [blame]
// Copyright 2014 The Bazel Authors. 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.lib.rules.java;
import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.devtools.build.lib.packages.ExecGroup.DEFAULT_EXEC_GROUP_NAME;
import com.google.common.base.Preconditions;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Interner;
import com.google.common.collect.Iterables;
import com.google.devtools.build.lib.actions.Artifact;
import com.google.devtools.build.lib.actions.ExecutionRequirements;
import com.google.devtools.build.lib.actions.ParamFileInfo;
import com.google.devtools.build.lib.actions.ParameterFile;
import com.google.devtools.build.lib.analysis.AnalysisEnvironment;
import com.google.devtools.build.lib.analysis.FilesToRunProvider;
import com.google.devtools.build.lib.analysis.RuleContext;
import com.google.devtools.build.lib.analysis.TransitiveInfoCollection;
import com.google.devtools.build.lib.analysis.actions.ActionConstructionContext;
import com.google.devtools.build.lib.analysis.actions.CustomCommandLine;
import com.google.devtools.build.lib.analysis.actions.LazyWritePathsFileAction;
import com.google.devtools.build.lib.analysis.actions.SpawnAction;
import com.google.devtools.build.lib.analysis.config.BuildConfigurationValue;
import com.google.devtools.build.lib.analysis.config.CoreOptionConverters.StrictDepsMode;
import com.google.devtools.build.lib.analysis.test.InstrumentedFilesCollector;
import com.google.devtools.build.lib.cmdline.Label;
import com.google.devtools.build.lib.collect.nestedset.NestedSet;
import com.google.devtools.build.lib.collect.nestedset.NestedSetBuilder;
import com.google.devtools.build.lib.collect.nestedset.Order;
import com.google.devtools.build.lib.concurrent.BlazeInterners;
import com.google.devtools.build.lib.packages.RuleClass.ConfiguredTargetFactory.RuleErrorException;
import com.google.devtools.build.lib.packages.TargetUtils;
import com.google.devtools.build.lib.rules.java.JavaConfiguration.JavaClasspathMode;
import com.google.devtools.build.lib.rules.java.JavaPluginInfo.JavaPluginData;
import com.google.devtools.build.lib.rules.java.JavaRuleOutputJarsProvider.JavaOutput;
import com.google.devtools.build.lib.rules.java.JavaToolchainProvider.JspecifyInfo;
import com.google.devtools.build.lib.vfs.FileSystemUtils;
import com.google.devtools.build.lib.vfs.PathFragment;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import javax.annotation.Nullable;
/**
* A helper class for compiling Java targets. It contains method to create the various intermediate
* Artifacts for using ijars and source ijars.
*
* <p>Also supports the creation of resource and source only Jars.
*/
public final class JavaCompilationHelper {
private static final Interner<ImmutableList<String>> javacOptsInterner =
BlazeInterners.newWeakInterner();
private static final Interner<ImmutableMap<String, String>> executionInfoInterner =
BlazeInterners.newWeakInterner();
private final RuleContext ruleContext;
private final JavaToolchainProvider javaToolchain;
private final JavaTargetAttributes.Builder attributes;
private JavaTargetAttributes builtAttributes;
private final ImmutableList<String> customJavacOpts;
private final JavaSemantics semantics;
private final ImmutableList<Artifact> additionalInputsForDatabinding;
private final StrictDepsMode strictJavaDeps;
private boolean enableJspecify = true;
private boolean enableDirectClasspath = true;
private final String execGroup;
public JavaCompilationHelper(
RuleContext ruleContext,
JavaSemantics semantics,
ImmutableList<String> javacOpts,
JavaTargetAttributes.Builder attributes,
JavaToolchainProvider javaToolchainProvider,
ImmutableList<Artifact> additionalInputsForDatabinding) {
this.ruleContext = ruleContext;
this.javaToolchain = Preconditions.checkNotNull(javaToolchainProvider);
this.attributes = attributes;
this.customJavacOpts = javacOptsInterner.intern(javacOpts);
this.semantics = semantics;
this.additionalInputsForDatabinding = additionalInputsForDatabinding;
this.strictJavaDeps = getJavaConfiguration().getFilteredStrictJavaDeps();
if (ruleContext.useAutoExecGroups()) {
this.execGroup = semantics.getJavaToolchainType();
} else {
this.execGroup = DEFAULT_EXEC_GROUP_NAME;
}
}
public JavaCompilationHelper(
RuleContext ruleContext,
JavaSemantics semantics,
ImmutableList<String> javacOpts,
JavaTargetAttributes.Builder attributes) {
this(
ruleContext,
semantics,
javacOpts,
attributes,
JavaToolchainProvider.from(ruleContext),
/* additionalInputsForDatabinding= */ ImmutableList.of());
}
public JavaCompilationHelper(
RuleContext ruleContext,
JavaSemantics semantics,
ImmutableList<String> javacOpts,
JavaTargetAttributes.Builder attributes,
ImmutableList<Artifact> additionalInputsForDatabinding) {
this(
ruleContext,
semantics,
javacOpts,
attributes,
JavaToolchainProvider.from(ruleContext),
additionalInputsForDatabinding);
}
@Nullable
static ImmutableList<String> internJavacOpts(@Nullable ImmutableList<String> javacOpts) {
if (javacOpts == null) {
return null;
}
return javacOptsInterner.intern(javacOpts);
}
public void enableJspecify(boolean enableJspecify) {
this.enableJspecify = enableJspecify;
}
JavaTargetAttributes getAttributes() {
if (builtAttributes == null) {
builtAttributes = attributes.build();
}
return builtAttributes;
}
public void enableDirectClasspath(boolean enableDirectClasspath) {
this.enableDirectClasspath = enableDirectClasspath;
}
public RuleContext getRuleContext() {
return ruleContext;
}
private AnalysisEnvironment getAnalysisEnvironment() {
return ruleContext.getAnalysisEnvironment();
}
private BuildConfigurationValue getConfiguration() {
return ruleContext.getConfiguration();
}
private JavaConfiguration getJavaConfiguration() {
return ruleContext.getFragment(JavaConfiguration.class);
}
public JavaCompileOutputs<Artifact> createOutputs(Artifact output) {
JavaCompileOutputs.Builder<Artifact> builder =
JavaCompileOutputs.builder()
.output(output)
.manifestProto(
deriveOutput(
output,
FileSystemUtils.appendExtension(
output.getOutputDirRelativePath(
getConfiguration().isSiblingRepositoryLayout()),
"_manifest_proto")))
.nativeHeader(deriveOutput(output, "-native-header"));
if (generatesOutputDeps()) {
builder.depsProto(
deriveOutput(
output,
FileSystemUtils.replaceExtension(
output.getOutputDirRelativePath(getConfiguration().isSiblingRepositoryLayout()),
".jdeps")));
}
if (usesAnnotationProcessing()) {
builder.genClass(deriveOutput(output, "-gen")).genSource(deriveOutput(output, "-gensrc"));
}
return builder.build();
}
public JavaCompileOutputs<Artifact> createOutputs(JavaOutput output) {
JavaCompileOutputs.Builder<Artifact> builder =
JavaCompileOutputs.builder()
.output(output.getClassJar())
.manifestProto(output.getManifestProto())
.nativeHeader(output.getNativeHeadersJar());
if (generatesOutputDeps()) {
builder.depsProto(output.getJdeps());
}
if (usesAnnotationProcessing()) {
builder.genClass(output.getGeneratedClassJar()).genSource(output.getGeneratedSourceJar());
}
return builder.build();
}
public void createCompileAction(JavaCompileOutputs<Artifact> outputs) throws RuleErrorException {
if (outputs.genClass() != null) {
createGenJarAction(
outputs.output(),
outputs.manifestProto(),
outputs.genClass(),
javaToolchain.getJavaRuntime());
}
JavaTargetAttributes attributes = getAttributes();
JspecifyInfo jspecifyInfo = javaToolchain.jspecifyInfo();
boolean jspecify =
enableJspecify
&& getJavaConfiguration().experimentalEnableJspecify()
&& jspecifyInfo != null
&& jspecifyInfo.matches(ruleContext.getLabel());
if (jspecify) {
// JSpecify requires these on the compile-time classpath; see b/187113128
// Add them as non-direct deps (for the purposes of Strict Java Deps) to still require an
// explicit dep if they're directly used by the compiled source.
attributes =
attributes.appendAdditionalTransitiveClassPathEntries(
jspecifyInfo.jspecifyImplicitDeps());
}
ImmutableList<Artifact> sourceJars = attributes.getSourceJars();
JavaPluginData plugins = attributes.plugins().plugins();
List<Artifact> resourceJars = new ArrayList<>();
boolean turbineAnnotationProcessing =
usesAnnotationProcessing()
&& getJavaConfiguration().experimentalTurbineAnnotationProcessing();
if (turbineAnnotationProcessing) {
Artifact turbineResources = turbineOutput(outputs.output(), "-turbine-resources.jar");
resourceJars.add(turbineResources);
Artifact turbineJar = turbineOutput(outputs.output(), "-turbine-apt.jar");
Artifact turbineJdeps = turbineOutput(outputs.output(), "-turbine-apt.jdeps");
Artifact turbineGensrc =
outputs.genSource() != null
? outputs.genSource()
: turbineOutput(outputs.output(), "-turbine-apt-gensrc.jar");
JavaHeaderCompileAction.Builder builder = getJavaHeaderCompileActionBuilder();
builder.setOutputJar(turbineJar);
builder.setOutputDepsProto(turbineJdeps);
builder.setPlugins(plugins);
builder.setResourceOutputJar(turbineResources);
builder.setGensrcOutputJar(turbineGensrc);
builder.setManifestOutput(outputs.manifestProto());
builder.setAdditionalOutputs(attributes.getAdditionalOutputs());
// TODO(cushon): GraalVM/native-image doesn't support service-loading for Dagger SPI plugins
builder.enableHeaderCompilerDirect(false);
builder.build(javaToolchain);
// The sources generated by the turbine annotation processing action are added to the list of
// source jars passed to JavaBuilder.
sourceJars =
ImmutableList.copyOf(Iterables.concat(sourceJars, ImmutableList.of(turbineGensrc)));
}
if (separateResourceJar(resourceJars, attributes)) {
Artifact originalOutput = outputs.output();
outputs =
outputs.withOutput(
ruleContext.getDerivedArtifact(
FileSystemUtils.appendWithoutExtension(
outputs
.output()
.getOutputDirRelativePath(getConfiguration().isSiblingRepositoryLayout()),
"-class"),
outputs.output().getRoot()));
resourceJars.add(outputs.output());
createResourceJarAction(originalOutput, ImmutableList.copyOf(resourceJars));
}
Artifact optimizedJar = null;
if (getJavaConfiguration().runLocalJavaOptimizations()) {
optimizedJar = outputs.output();
outputs =
outputs.withOutput(
ruleContext.getDerivedArtifact(
FileSystemUtils.replaceExtension(
outputs
.output()
.getOutputDirRelativePath(getConfiguration().isSiblingRepositoryLayout()),
"-pre-optimization.jar"),
outputs.output().getRoot()));
}
ImmutableList<String> javacopts = customJavacOpts;
if (jspecify) {
plugins =
JavaPluginInfo.JavaPluginData.merge(
ImmutableList.of(plugins, jspecifyInfo.jspecifyProcessor()));
var jspecifyOpts = jspecifyInfo.jspecifyJavacopts();
javacopts =
javacOptsInterner.intern(
ImmutableList.<String>builderWithExpectedSize(javacopts.size() + jspecifyOpts.size())
.addAll(javacopts)
// Add JSpecify options last to discourage overriding them, at least for now.
.addAll(jspecifyOpts)
.build());
}
JavaCompileActionBuilder builder =
new JavaCompileActionBuilder(ruleContext, javaToolchain, execGroup);
JavaClasspathMode classpathMode = getJavaConfiguration().getReduceJavaClasspath();
builder.setClasspathMode(classpathMode);
builder.setAdditionalInputs(additionalInputsForDatabinding);
Label label = ruleContext.getLabel();
builder.setTargetLabel(label);
Artifact coverageArtifact = maybeCreateCoverageArtifact(outputs.output());
builder.setCoverageArtifact(coverageArtifact);
BootClassPathInfo bootClassPathInfo = getBootclasspathOrDefault();
builder.setBootClassPath(bootClassPathInfo);
NestedSet<Artifact> classpath =
NestedSetBuilder.<Artifact>naiveLinkOrder()
.addTransitive(bootClassPathInfo.auxiliary())
.addTransitive(attributes.getCompileTimeClassPath())
.build();
if (!bootClassPathInfo.auxiliary().isEmpty()) {
builder.setClasspathEntries(classpath);
builder.setDirectJars(
NestedSetBuilder.<Artifact>naiveLinkOrder()
.addTransitive(bootClassPathInfo.auxiliary())
.addTransitive(attributes.getDirectJars())
.build());
} else {
builder.setClasspathEntries(attributes.getCompileTimeClassPath());
builder.setDirectJars(attributes.getDirectJars());
}
builder.setSourcePathEntries(attributes.getSourcePath());
builder.setToolsJars(javaToolchain.getTools());
builder.setJavaBuilder(javaToolchain.getJavaBuilder());
if (!turbineAnnotationProcessing) {
builder.setGenSourceOutput(outputs.genSource());
builder.setAdditionalOutputs(attributes.getAdditionalOutputs());
builder.setPlugins(plugins);
builder.setManifestOutput(outputs.manifestProto());
} else {
// Don't do annotation processing, but pass the processorpath through to allow service-loading
// Error Prone plugins.
builder.setPlugins(
JavaPluginData.create(
/* processorClasses= */ NestedSetBuilder.emptySet(Order.STABLE_ORDER),
plugins.processorClasspath(),
plugins.data()));
}
builder.setOutputs(outputs);
ImmutableSet<Artifact> sourceFiles = attributes.getSourceFiles();
builder.setSourceFiles(sourceFiles);
builder.setSourceJars(sourceJars);
builder.setJavacOpts(javacopts);
builder.setJavacExecutionInfo(executionInfoInterner.intern(getExecutionInfo()));
builder.setCompressJar(true);
builder.setExtraData(JavaCommon.computePerPackageData(ruleContext, javaToolchain));
builder.setStrictJavaDeps(attributes.getStrictJavaDeps());
builder.setFixDepsTool(getJavaConfiguration().getFixDepsTool());
builder.setCompileTimeDependencyArtifacts(attributes.getCompileTimeDependencyArtifacts());
builder.setTargetLabel(
attributes.getTargetLabel() == null ? label : attributes.getTargetLabel());
builder.setInjectingRuleKind(attributes.getInjectingRuleKind());
if (coverageArtifact != null) {
ruleContext.registerAction(
new LazyWritePathsFileAction(
ruleContext.getActionOwner(execGroup),
coverageArtifact,
NestedSetBuilder.<Artifact>stableOrder().addAll(sourceFiles).build(),
/* filesToIgnore= */ ImmutableSet.of(),
false));
}
JavaCompileAction javaCompileAction = builder.build();
ruleContext.getAnalysisEnvironment().registerAction(javaCompileAction);
if (optimizedJar != null) {
JavaConfiguration.NamedLabel optimizerLabel = getJavaConfiguration().getBytecodeOptimizer();
createLocalOptimizationAction(
outputs.output(),
optimizedJar,
NestedSetBuilder.<Artifact>naiveLinkOrder()
.addTransitive(bootClassPathInfo.bootclasspath())
.addTransitive(classpath)
.build(),
javaToolchain.getLocalJavaOptimizationConfiguration(),
javaToolchain.getBytecodeOptimizer().tool(),
optimizerLabel.name());
}
}
/**
* If there are sources and no resource, the only output is from the javac action. Otherwise
* create a separate jar for the compilation and add resources with singlejar.
*/
private boolean separateResourceJar(
List<Artifact> resourceJars, JavaTargetAttributes attributes) {
return !resourceJars.isEmpty()
|| !attributes.getResources().isEmpty()
|| !attributes.getResourceJars().isEmpty()
|| !attributes.getClassPathResources().isEmpty();
}
private ImmutableMap<String, String> getExecutionInfo() throws RuleErrorException {
ImmutableMap.Builder<String, String> modifiableExecutionInfo = ImmutableMap.builder();
modifiableExecutionInfo.put(ExecutionRequirements.SUPPORTS_PATH_MAPPING, "1");
if (javaToolchain.getJavacSupportsWorkers()) {
modifiableExecutionInfo.put(ExecutionRequirements.SUPPORTS_WORKERS, "1");
}
if (javaToolchain.getJavacSupportsMultiplexWorkers()) {
modifiableExecutionInfo.put(ExecutionRequirements.SUPPORTS_MULTIPLEX_WORKERS, "1");
}
if (javaToolchain.getJavacSupportsWorkerCancellation()) {
modifiableExecutionInfo.put(ExecutionRequirements.SUPPORTS_WORKER_CANCELLATION, "1");
}
ImmutableMap.Builder<String, String> executionInfo = ImmutableMap.builder();
executionInfo.putAll(
getConfiguration()
.modifiedExecutionInfo(
modifiableExecutionInfo.buildOrThrow(), JavaCompileActionBuilder.MNEMONIC));
executionInfo.putAll(
TargetUtils.getExecutionInfo(ruleContext.getRule(), ruleContext.isAllowTagsPropagation()));
return executionInfo.buildKeepingLast();
}
/** Returns the bootclasspath explicit set in attributes if present, or else the default. */
public BootClassPathInfo getBootclasspathOrDefault() throws RuleErrorException {
JavaTargetAttributes attributes = getAttributes();
if (!attributes.getBootClassPath().isEmpty()) {
return attributes.getBootClassPath();
} else {
return javaToolchain.getBootclasspath();
}
}
/** Adds coverage support from java_toolchain. */
public void addCoverageSupport() throws RuleErrorException {
FilesToRunProvider jacocoRunner = javaToolchain.getJacocoRunner();
if (jacocoRunner == null) {
ruleContext.ruleError(
"jacocorunner not set in java_toolchain:" + javaToolchain.getToolchainLabel());
return;
}
Artifact jacocoRunnerJar = jacocoRunner.getExecutable();
if (isStrict()) {
attributes.addDirectJar(jacocoRunnerJar);
}
attributes.addCompileTimeClassPathEntry(jacocoRunnerJar);
attributes.addRuntimeClassPathEntry(jacocoRunnerJar);
}
/**
* Creates an {@link Artifact} needed by {@code JacocoCoverageRunner}.
*
* <p>The {@link Artifact} is created in the same directory as the given {@code compileJar} and
* has the suffix {@code -paths-for-coverage.txt}.
*
* <p>Returns {@code null} if {@code compileJar} should not be instrumented.
*/
@Nullable
private Artifact maybeCreateCoverageArtifact(Artifact compileJar) {
if (!shouldInstrumentJar()) {
return null;
}
PathFragment packageRelativePath =
compileJar.getRootRelativePath().relativeTo(ruleContext.getPackageDirectory());
PathFragment path =
FileSystemUtils.replaceExtension(packageRelativePath, "-paths-for-coverage.txt");
return ruleContext.getPackageRelativeArtifact(path, compileJar.getRoot());
}
private boolean shouldInstrumentJar() {
RuleContext ruleContext = getRuleContext();
return getConfiguration().isCodeCoverageEnabled()
&& attributes.hasSourceFiles()
&& InstrumentedFilesCollector.shouldIncludeLocalSources(
ruleContext.getConfiguration(), ruleContext.getLabel(), ruleContext.isTestTarget());
}
private boolean shouldUseHeaderCompilation() throws RuleErrorException {
if (!getJavaConfiguration().useHeaderCompilation()) {
return false;
}
if (!attributes.hasSources()) {
return false;
}
if (javaToolchain.getForciblyDisableHeaderCompilation()) {
return false;
}
if (javaToolchain.getHeaderCompiler() == null) {
getRuleContext()
.ruleError(
String.format(
"header compilation was requested but it is not supported by the current Java"
+ " toolchain '%s'; see the java_toolchain.header_compiler attribute",
javaToolchain.getToolchainLabel()));
return false;
}
if (javaToolchain.getHeaderCompilerDirect() == null) {
getRuleContext()
.ruleError(
String.format(
"header compilation was requested but it is not supported by the current Java"
+ " toolchain '%s'; see the java_toolchain.header_compiler_direct attribute",
javaToolchain.getToolchainLabel()));
return false;
}
return true;
}
private Artifact turbineOutput(Artifact classJar, String newExtension) {
return getAnalysisEnvironment()
.getDerivedArtifact(
FileSystemUtils.replaceExtension(
classJar.getOutputDirRelativePath(getConfiguration().isSiblingRepositoryLayout()),
newExtension),
classJar.getRoot());
}
/**
* Creates the Action that compiles ijars from source.
*
* @param headerJar the jar output of this java compilation
* @param headerDeps the .jdeps output of this java compilation
*/
public void createHeaderCompilationAction(Artifact headerJar, Artifact headerDeps)
throws RuleErrorException {
JavaTargetAttributes attributes = getAttributes();
// only run API-generating annotation processors during header compilation
JavaPluginData plugins = attributes.plugins().apiGeneratingPlugins();
JavaHeaderCompileAction.Builder builder = getJavaHeaderCompileActionBuilder();
builder.setOutputJar(headerJar);
builder.setOutputDepsProto(headerDeps);
builder.setPlugins(plugins);
if (plugins
.processorClasses()
.toList()
.contains("dagger.internal.codegen.ComponentProcessor")) {
// See b/31371210 and b/142059842.
builder.addTurbineHjarJavacOpt();
}
builder.enableDirectClasspath(enableDirectClasspath);
builder.build(javaToolchain);
}
private JavaHeaderCompileAction.Builder getJavaHeaderCompileActionBuilder()
throws RuleErrorException {
JavaTargetAttributes attributes = getAttributes();
JavaHeaderCompileAction.Builder builder = JavaHeaderCompileAction.newBuilder(ruleContext);
builder.setSourceFiles(attributes.getSourceFiles());
builder.setSourceJars(attributes.getSourceJars());
builder.setClasspathEntries(attributes.getCompileTimeClassPath());
builder.setBootclasspathEntries(getBootclasspathOrDefault().bootclasspath());
// Exclude any per-package configured data (see JavaCommon.computePerPackageData).
// It is used to allow Error Prone checks to load additional data,
// and Error Prone doesn't run during header compilation.
builder.setJavacOpts(customJavacOpts);
builder.setStrictJavaDeps(attributes.getStrictJavaDeps());
builder.setCompileTimeDependencyArtifacts(attributes.getCompileTimeDependencyArtifacts());
builder.setDirectJars(attributes.getDirectJars());
builder.setTargetLabel(attributes.getTargetLabel());
builder.setInjectingRuleKind(attributes.getInjectingRuleKind());
builder.setAdditionalInputs(additionalInputsForDatabinding);
builder.setToolsJars(javaToolchain.getTools());
return builder;
}
private Artifact deriveOutput(Artifact outputJar, String suffix) {
return deriveOutput(
outputJar,
FileSystemUtils.appendWithoutExtension(
outputJar.getOutputDirRelativePath(getConfiguration().isSiblingRepositoryLayout()),
suffix));
}
private Artifact deriveOutput(Artifact outputJar, PathFragment path) {
return getRuleContext().getDerivedArtifact(path, outputJar.getRoot());
}
/** Returns whether this target uses annotation processing. */
public boolean usesAnnotationProcessing() {
JavaTargetAttributes attributes = getAttributes();
return getJavacOpts().contains("-processor") || attributes.plugins().hasProcessors();
}
private void createGenJarAction(
Artifact classJar, Artifact manifestProto, Artifact genClassJar, JavaRuntimeInfo hostJavabase)
throws RuleErrorException {
getRuleContext()
.registerAction(
new SpawnAction.Builder()
.addInput(manifestProto)
.addInput(classJar)
.addOutput(genClassJar)
.addTransitiveInputs(hostJavabase.javaBaseInputs())
.setJarExecutable(
JavaCommon.getHostJavaExecutable(hostJavabase),
getGenClassJar(ruleContext),
javaToolchain.getJvmOptions())
.addCommandLine(
CustomCommandLine.builder()
.addExecPath("--manifest_proto", manifestProto)
.addExecPath("--class_jar", classJar)
.addExecPath("--output_jar", genClassJar)
.build())
.setProgressMessage("Building genclass jar %{output}")
.setMnemonic("JavaSourceJar")
.setExecGroup(execGroup)
.build(getRuleContext()));
}
/** Returns the GenClass deploy jar Artifact. */
private Artifact getGenClassJar(RuleContext ruleContext) throws RuleErrorException {
Artifact genClass = javaToolchain.getGenClass();
if (genClass != null) {
return genClass;
}
return ruleContext.getPrerequisiteArtifact("$genclass");
}
/**
* Returns whether this target emits dependency information. Compilation must occur, so certain
* targets acting as aliases have to be filtered out.
*/
private boolean generatesOutputDeps() {
return getJavaConfiguration().getGenerateJavaDeps() && attributes.hasSources();
}
private void createResourceJarAction(Artifact resourceJar, ImmutableList<Artifact> extraJars)
throws RuleErrorException {
checkNotNull(resourceJar, "resource jar output must not be null");
JavaTargetAttributes attributes = getAttributes();
new ResourceJarActionBuilder()
.setAdditionalInputs(
NestedSetBuilder.wrap(Order.STABLE_ORDER, additionalInputsForDatabinding))
.setJavaToolchain(javaToolchain)
.setOutputJar(resourceJar)
.setResources(attributes.getResources())
.setClasspathResources(attributes.getClassPathResources())
.setResourceJars(
NestedSetBuilder.fromNestedSet(attributes.getResourceJars()).addAll(extraJars).build())
.build(semantics, ruleContext, execGroup);
}
public void createSourceJarAction(Artifact outputJar, @Nullable Artifact gensrcJar)
throws RuleErrorException {
JavaTargetAttributes attributes = getAttributes();
NestedSetBuilder<Artifact> resourceJars = NestedSetBuilder.stableOrder();
resourceJars.addAll(attributes.getSourceJars());
if (gensrcJar != null) {
resourceJars.add(gensrcJar);
}
SingleJarActionBuilder.createSourceJarAction(
ruleContext,
semantics,
NestedSetBuilder.<Artifact>wrap(Order.STABLE_ORDER, attributes.getSourceFiles()),
resourceJars.build(),
outputJar,
execGroup);
}
/**
* Creates the actions that produce the interface jar. Adds the jar artifacts to the given
* JavaCompilationArtifacts builder.
*
* @return the header jar (if requested), or ijar (if requested), or else the class jar
*/
public Artifact createCompileTimeJarAction(
Artifact runtimeJar, JavaCompilationArtifacts.Builder builder) throws RuleErrorException {
Artifact jar;
boolean isFullJar = false;
if (shouldUseHeaderCompilation()) {
jar = turbineOutput(runtimeJar, "-hjar.jar");
Artifact headerDeps = turbineOutput(runtimeJar, "-hjar.jdeps");
createHeaderCompilationAction(jar, headerDeps);
builder.setCompileTimeDependencies(headerDeps);
} else if (getJavaConfiguration().getUseIjars()) {
JavaTargetAttributes attributes = getAttributes();
jar =
createIjarAction(
ruleContext,
javaToolchain,
runtimeJar,
attributes.getTargetLabel(),
attributes.getInjectingRuleKind(),
false);
} else {
jar = runtimeJar;
isFullJar = true;
}
if (isFullJar) {
builder.addCompileTimeJarAsFullJar(jar);
} else {
builder.addInterfaceJarWithFullJar(jar, runtimeJar);
}
return jar;
}
private void createLocalOptimizationAction(
Artifact unoptimizedOutputJar,
Artifact optimizedOutputJar,
NestedSet<Artifact> classpath,
List<Artifact> configs,
FilesToRunProvider optimizer,
String mnemonic) {
CustomCommandLine.Builder command =
CustomCommandLine.builder()
.add("-runtype", "LOCAL_ONLY")
.addExecPath("-injars", unoptimizedOutputJar)
.addExecPath("-outjars", optimizedOutputJar)
.addExecPaths(CustomCommandLine.VectorArg.addBefore("-libraryjars").each(classpath));
for (Artifact config : configs) {
command.addPrefixedExecPath("@", config);
}
getRuleContext()
.registerAction(
new SpawnAction.Builder()
.addInput(unoptimizedOutputJar)
.addTransitiveInputs(classpath)
.addInputs(configs)
.addOutput(optimizedOutputJar)
.setExecutable(optimizer)
.addCommandLine(
command.build(),
ParamFileInfo.builder(ParameterFile.ParameterFileType.UNQUOTED).build())
.setProgressMessage("Optimizing jar %{label}")
.setMnemonic(mnemonic)
.setExecGroup(execGroup)
.build(getRuleContext()));
}
private void addArgsAndJarsToAttributes(
JavaCompilationArgsProvider args, NestedSet<Artifact> directJars) {
// Can only be non-null when isStrict() returns true.
if (directJars != null) {
attributes.addDirectJars(directJars);
}
attributes.merge(args);
}
private void addLibrariesToAttributesInternal(Iterable<? extends TransitiveInfoCollection> deps)
throws RuleErrorException {
JavaCompilationArgsProvider args = JavaCompilationArgsProvider.legacyFromTargets(deps);
NestedSet<Artifact> directJars =
isStrict() ? getNonRecursiveCompileTimeJarsFromCollection(deps) : null;
addArgsAndJarsToAttributes(args, directJars);
}
private boolean isStrict() {
return getStrictJavaDeps() != StrictDepsMode.OFF;
}
private NestedSet<Artifact> getNonRecursiveCompileTimeJarsFromCollection(
Iterable<? extends TransitiveInfoCollection> deps) throws RuleErrorException {
return JavaCompilationArgsProvider.legacyFromTargets(deps).getDirectCompileTimeJars();
}
static void addDependencyArtifactsToAttributes(
JavaTargetAttributes.Builder attributes,
Iterable<? extends JavaCompilationArgsProvider> deps) {
NestedSetBuilder<Artifact> result = NestedSetBuilder.stableOrder();
for (JavaCompilationArgsProvider provider : deps) {
result.addTransitive(provider.getCompileTimeJavaDependencyArtifacts());
}
attributes.addCompileTimeDependencyArtifacts(result.build());
}
/**
* Adds the compile time and runtime Java libraries in the transitive closure of the deps to the
* attributes.
*
* @param deps the dependencies to be included as roots of the transitive closure
*/
public void addLibrariesToAttributes(Collection<? extends TransitiveInfoCollection> deps)
throws RuleErrorException {
// Enforcing strict Java dependencies: when the --strict_java_deps flag is
// WARN or ERROR, or is DEFAULT and strict_java_deps attribute is unset,
// we use a stricter javac compiler to perform direct deps checks.
attributes.setStrictJavaDeps(getStrictJavaDeps());
addLibrariesToAttributesInternal(deps);
JavaClasspathMode classpathMode = getJavaConfiguration().getReduceJavaClasspath();
if (isStrict() && classpathMode != JavaClasspathMode.OFF) {
ImmutableList.Builder<JavaCompilationArgsProvider> argsBuilder = ImmutableList.builder();
for (TransitiveInfoCollection dep : deps) {
JavaInfo.getCompilationArgsProvider(dep).ifPresent(argsBuilder::add);
}
addDependencyArtifactsToAttributes(attributes, argsBuilder.build());
}
}
/**
* Determines whether to enable strict_java_deps.
*
* @return filtered command line flag value, defaulting to ERROR
*/
private StrictDepsMode getStrictJavaDeps() {
return strictJavaDeps;
}
/**
* Gets the value of the "javacopts" attribute combining them with the default options. If the
* current rule has no javacopts attribute, this method only returns the default options.
*/
private ImmutableList<String> getJavacOpts() {
return customJavacOpts;
}
/**
* Creates the Action that creates ijars from Jar files.
*
* @param inputJar the Jar to create the ijar for
* @param addPrefix whether to prefix the path of the generated ijar with the package and name of
* the current rule
* @return the Artifact to create with the Action
*/
static Artifact createIjarAction(
RuleContext ruleContext,
JavaToolchainProvider javaToolchain,
Artifact inputJar,
@Nullable Label targetLabel,
@Nullable String injectingRuleKind,
boolean addPrefix)
throws RuleErrorException {
Artifact interfaceJar = getIjarArtifact(ruleContext, inputJar, addPrefix);
FilesToRunProvider ijarTarget = javaToolchain.getIjar();
if (!ruleContext.hasErrors()) {
CustomCommandLine.Builder commandLine =
CustomCommandLine.builder().addExecPath(inputJar).addExecPath(interfaceJar);
if (targetLabel != null) {
commandLine.addLabel("--target_label", targetLabel);
}
if (injectingRuleKind != null) {
commandLine.add("--injecting_rule_kind", injectingRuleKind);
}
ruleContext.registerAction(
new SpawnAction.Builder()
.addInput(inputJar)
.addOutput(interfaceJar)
.setExecutable(ijarTarget)
// On Windows, ijar.exe needs msys-2.0.dll and zlib1.dll in PATH.
// Use default shell environment so that those can be found.
// TODO(dslomov): revisit this. If ijar is not msys-dependent, this is not needed.
.useDefaultShellEnvironment()
.setProgressMessage("Extracting interface %s", ruleContext.getLabel())
.setMnemonic("JavaIjar")
.addCommandLine(commandLine.build())
.build(ruleContext));
}
return interfaceJar;
}
private static Artifact getIjarArtifact(
RuleContext ruleContext, Artifact jar, boolean addPrefix) {
if (addPrefix) {
PathFragment ruleBase = ruleContext.getUniqueDirectory("_ijar");
PathFragment artifactDirFragment = jar.getRootRelativePath().getParentDirectory();
String ijarBasename = FileSystemUtils.removeExtension(jar.getFilename()) + "-ijar.jar";
return ruleContext.getDerivedArtifact(
ruleBase.getRelative(artifactDirFragment).getRelative(ijarBasename),
ruleContext
.getConfiguration()
.getGenfilesDirectory(ruleContext.getRule().getRepository()));
} else {
return derivedArtifact(ruleContext, jar, "", "-ijar.jar");
}
}
/**
* Creates a derived artifact from the given artifact by adding the given prefix and removing the
* extension and replacing it by the given suffix. The new artifact will have the same root as the
* given one.
*/
static Artifact derivedArtifact(
ActionConstructionContext context, Artifact artifact, String prefix, String suffix) {
PathFragment path =
artifact.getOutputDirRelativePath(context.getConfiguration().isSiblingRepositoryLayout());
String basename = FileSystemUtils.removeExtension(path.getBaseName()) + suffix;
path = path.replaceName(prefix + basename);
return context.getDerivedArtifact(path, artifact.getRoot());
}
}