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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.ImmutableMap;
import com.google.devtools.build.lib.actions.ActionExecutionContext;
import com.google.devtools.build.lib.actions.ActionExecutionException;
import com.google.devtools.build.lib.actions.ExecException;
import com.google.devtools.build.lib.actions.ExecutionStrategy;
import com.google.devtools.build.lib.analysis.actions.SymlinkTreeAction;
import com.google.devtools.build.lib.analysis.actions.SymlinkTreeActionContext;
import com.google.devtools.build.lib.profiler.AutoProfiler;
import com.google.devtools.build.lib.vfs.OutputService;
import java.util.logging.Logger;
/**
* Implements SymlinkTreeAction by using the output service or by running an embedded script to
* create the symlink tree.
*/
@ExecutionStrategy(contextType = SymlinkTreeActionContext.class)
public final class SymlinkTreeStrategy implements SymlinkTreeActionContext {
private static final Logger logger = Logger.getLogger(SymlinkTreeStrategy.class.getName());
private final OutputService outputService;
private final BinTools binTools;
public SymlinkTreeStrategy(OutputService outputService, BinTools binTools) {
this.outputService = outputService;
this.binTools = binTools;
}
@Override
public void createSymlinks(
SymlinkTreeAction action,
ActionExecutionContext actionExecutionContext,
ImmutableMap<String, String> shellEnvironment,
boolean enableRunfiles)
throws ActionExecutionException, InterruptedException {
try (AutoProfiler p =
AutoProfiler.logged(
"running " + action.prettyPrint(), logger, /*minTimeForLoggingInMilliseconds=*/ 100)) {
try {
if (outputService != null && outputService.canCreateSymlinkTree()) {
outputService.createSymlinkTree(
actionExecutionContext.getInputPath(action.getInputManifest()),
actionExecutionContext.getInputPath(action.getOutputManifest()),
action.isFilesetTree(),
action.getOutputManifest().getExecPath().getParentDirectory());
} else {
SymlinkTreeHelper helper =
new SymlinkTreeHelper(
actionExecutionContext.getInputPath(action.getInputManifest()),
actionExecutionContext
.getInputPath(action.getOutputManifest())
.getParentDirectory(),
action.isFilesetTree());
helper.createSymlinks(actionExecutionContext, binTools, shellEnvironment, enableRunfiles);
}
} catch (ExecException e) {
throw e.toActionExecutionException(
action.getProgressMessage(), actionExecutionContext.getVerboseFailures(), action);
}
}
}
}
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