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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.exec;
import com.google.common.collect.ImmutableList;
import com.google.devtools.build.lib.actions.AbstractAction;
import com.google.devtools.build.lib.actions.ActionExecutionContext;
import com.google.devtools.build.lib.actions.Artifact;
import com.google.devtools.build.lib.actions.EnvironmentalExecException;
import com.google.devtools.build.lib.actions.ExecException;
import com.google.devtools.build.lib.actions.RunningActionEvent;
import com.google.devtools.build.lib.actions.SpawnResult;
import com.google.devtools.build.lib.analysis.actions.DeterministicWriter;
import com.google.devtools.build.lib.analysis.actions.FileWriteActionContext;
import com.google.devtools.build.lib.profiler.AutoProfiler;
import com.google.devtools.build.lib.profiler.GoogleAutoProfilerUtils;
import com.google.devtools.build.lib.server.FailureDetails.Execution.Code;
import com.google.devtools.build.lib.vfs.Path;
import java.io.BufferedOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.time.Duration;
/**
* A strategy for executing an {@link
* com.google.devtools.build.lib.analysis.actions.AbstractFileWriteAction}.
*/
public final class FileWriteStrategy implements FileWriteActionContext {
public static final Class<FileWriteStrategy> TYPE = FileWriteStrategy.class;
private static final Duration MIN_LOGGING = Duration.ofMillis(100);
@Override
public ImmutableList<SpawnResult> writeOutputToFile(
AbstractAction action,
ActionExecutionContext actionExecutionContext,
DeterministicWriter deterministicWriter,
boolean makeExecutable,
boolean isRemotable,
Artifact output)
throws ExecException {
actionExecutionContext.getEventHandler().post(new RunningActionEvent(action, "local"));
// TODO(ulfjack): Consider acquiring local resources here before trying to write the file.
try (AutoProfiler p =
GoogleAutoProfilerUtils.logged(
"running write for action " + action.prettyPrint(), MIN_LOGGING)) {
Path outputPath = actionExecutionContext.getInputPath(output);
try {
try (OutputStream out = new BufferedOutputStream(outputPath.getOutputStream())) {
deterministicWriter.writeOutputFile(out);
}
if (makeExecutable) {
outputPath.setExecutable(true);
}
} catch (IOException e) {
throw new EnvironmentalExecException(e, Code.FILE_WRITE_IO_EXCEPTION);
}
}
return ImmutableList.of();
}
}