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// Copyright 2016 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.sandbox;
import com.google.devtools.build.lib.vfs.Path;
import java.io.IOException;
import java.util.List;
import java.util.Map;
/**
* A description of a subprocess, as well as the necessary file system / sandbox setup.
*
* <p>Instances are responsible for making a list of input files available inside the sandbox root,
* so that a process running inside the directory can access the files. It also handles moving the
* output files generated by the process out of the directory into a destination directory.
*/
interface SandboxedSpawn {
/** The path in which to execute the subprocess. */
Path getSandboxExecRoot();
/** The command-line of the subprocess. */
List<String> getArguments();
/** The environment variables to be set for the subprocess. */
Map<String, String> getEnvironment();
/**
* Creates the sandboxed execution root, making all {@code inputs} available for reading, making
* sure that the parent directories of all {@code outputs} and that all {@code writableDirs}
* exist and can be written into.
*
* @throws IOException
*/
void createFileSystem() throws IOException;
/**
* Moves all {@code outputs} to {@code execRoot} while keeping the directory structure.
*
* @throws IOException
*/
void copyOutputs(Path execRoot) throws IOException;
/**
* Deletes the sandbox directory.
*/
void delete();
}
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