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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.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.actions.Executor;
import com.google.devtools.build.lib.analysis.SymlinkTreeAction;
import com.google.devtools.build.lib.analysis.SymlinkTreeActionContext;
import com.google.devtools.build.lib.analysis.config.BinTools;
import com.google.devtools.build.lib.profiler.AutoProfiler;
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 LOG = 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)
throws ActionExecutionException, InterruptedException {
Executor executor = actionExecutionContext.getExecutor();
try (AutoProfiler p = AutoProfiler.logged("running " + action.prettyPrint(), LOG)) {
try {
SymlinkTreeHelper helper = new SymlinkTreeHelper(
action.getInputManifest().getExecPath(),
action.getOutputManifest().getExecPath().getParentDirectory(), action.isFilesetTree());
if (outputService != null && outputService.canCreateSymlinkTree()) {
outputService.createSymlinkTree(action.getInputManifest().getPath(),
action.getOutputManifest().getPath(),
action.isFilesetTree(), helper.getSymlinkTreeRoot());
} else {
helper.createSymlinks(action, actionExecutionContext, binTools);
}
} catch (ExecException e) {
throw e.toActionExecutionException(
action.getProgressMessage(), executor.getVerboseFailures(), action);
}
}
}
}
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