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// 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.actions;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.Iterables;
import com.google.devtools.build.lib.analysis.platform.PlatformInfo;
import com.google.devtools.build.lib.vfs.PathFragment;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.Set;
import javax.annotation.Nullable;
import javax.annotation.concurrent.Immutable;
/** Base implementation of a Spawn. */
@Immutable
public class BaseSpawn implements Spawn {
private final ImmutableList<String> arguments;
private final ImmutableMap<String, String> environment;
private final ImmutableMap<String, String> executionInfo;
private final RunfilesSupplier runfilesSupplier;
private final ActionExecutionMetadata action;
private final ResourceSet localResources;
public BaseSpawn(
List<String> arguments,
Map<String, String> environment,
Map<String, String> executionInfo,
RunfilesSupplier runfilesSupplier,
ActionExecutionMetadata action,
ResourceSet localResources) {
this.arguments = ImmutableList.copyOf(arguments);
this.environment = ImmutableMap.copyOf(environment);
this.executionInfo = ImmutableMap.copyOf(executionInfo);
this.runfilesSupplier = runfilesSupplier;
this.action = action;
this.localResources = localResources;
}
public BaseSpawn(
List<String> arguments,
Map<String, String> environment,
Map<String, String> executionInfo,
ActionExecutionMetadata action,
ResourceSet localResources) {
this(
arguments,
environment,
executionInfo,
EmptyRunfilesSupplier.INSTANCE,
action,
localResources);
}
public static PathFragment runfilesForFragment(PathFragment pathFragment) {
return pathFragment.getParentDirectory().getChild(pathFragment.getBaseName() + ".runfiles");
}
@Override
public final ImmutableMap<String, String> getExecutionInfo() {
return executionInfo;
}
@Override
public RunfilesSupplier getRunfilesSupplier() {
return runfilesSupplier;
}
@Override
public ImmutableList<String> getArguments() {
// TODO(bazel-team): this method should be final, as the correct value of the args can be
// injected in the ctor.
return arguments;
}
@Override
public ImmutableMap<PathFragment, ImmutableList<FilesetOutputSymlink>> getFilesetMappings() {
return ImmutableMap.of();
}
@Override
public ImmutableMap<String, String> getEnvironment() {
PathFragment runfilesRoot = getRunfilesRoot();
if (runfilesRoot == null
|| (environment.containsKey("JAVA_RUNFILES")
&& environment.containsKey("PYTHON_RUNFILES"))) {
return environment;
} else {
ImmutableMap.Builder<String, String> env = ImmutableMap.builder();
env.putAll(environment);
// TODO(bazel-team): Unify these into a single env variable.
String runfilesRootString = runfilesRoot.getPathString();
env.put("JAVA_RUNFILES", runfilesRootString);
env.put("PYTHON_RUNFILES", runfilesRootString);
return env.build();
}
}
/** @return the runfiles directory if there is only one, otherwise null */
private PathFragment getRunfilesRoot() {
Set<PathFragment> runfilesSupplierRoots = runfilesSupplier.getRunfilesDirs();
if (runfilesSupplierRoots.size() == 1) {
return Iterables.getOnlyElement(runfilesSupplierRoots);
} else {
return null;
}
}
@Override
public Iterable<? extends ActionInput> getToolFiles() {
return action.getTools();
}
@Override
public Iterable<? extends ActionInput> getInputFiles() {
return action.getInputs();
}
@Override
public Collection<? extends ActionInput> getOutputFiles() {
return action.getOutputs();
}
@Override
public ActionExecutionMetadata getResourceOwner() {
return action;
}
@Override
public ResourceSet getLocalResources() {
return localResources;
}
@Override
public String getMnemonic() {
return action.getMnemonic();
}
@Override
@Nullable
public PlatformInfo getExecutionPlatform() {
return action.getExecutionPlatform();
}
}
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