1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
// Copyright 2017 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.actions.ExecException;
import com.google.devtools.build.lib.actions.Spawn;
import com.google.devtools.build.lib.actions.SpawnResult;
import com.google.devtools.build.lib.exec.apple.XCodeLocalEnvProvider;
import com.google.devtools.build.lib.exec.local.LocalEnvProvider;
import com.google.devtools.build.lib.runtime.CommandEnvironment;
import com.google.devtools.build.lib.util.OS;
import com.google.devtools.build.lib.vfs.Path;
import java.io.IOException;
import java.time.Duration;
import java.util.List;
import java.util.Map;
/** Strategy that uses sandboxing to execute a process. */
final class ProcessWrapperSandboxedSpawnRunner extends AbstractSandboxSpawnRunner {
public static boolean isSupported(CommandEnvironment cmdEnv) {
return OS.isPosixCompatible() && ProcessWrapperRunner.isSupported(cmdEnv);
}
private final Path execRoot;
private final String productName;
private final Path processWrapper;
private final LocalEnvProvider localEnvProvider;
private final int timeoutGraceSeconds;
ProcessWrapperSandboxedSpawnRunner(
CommandEnvironment cmdEnv,
Path sandboxBase,
String productName,
int timeoutGraceSeconds) {
super(cmdEnv, sandboxBase);
this.execRoot = cmdEnv.getExecRoot();
this.productName = productName;
this.timeoutGraceSeconds = timeoutGraceSeconds;
this.processWrapper = ProcessWrapperRunner.getProcessWrapper(cmdEnv);
this.localEnvProvider =
OS.getCurrent() == OS.DARWIN
? new XCodeLocalEnvProvider()
: LocalEnvProvider.ADD_TEMP_POSIX;
}
@Override
protected SpawnResult actuallyExec(Spawn spawn, SpawnExecutionPolicy policy)
throws ExecException, IOException, InterruptedException {
// Each invocation of "exec" gets its own sandbox.
Path sandboxPath = getSandboxRoot();
Path sandboxExecRoot = sandboxPath.getRelative("execroot").getRelative(execRoot.getBaseName());
// Each sandboxed action runs in its own execroot, so we don't need to make the temp directory's
// name unique (like we have to with standalone execution strategy).
Path tmpDir = sandboxExecRoot.getRelative("tmp");
Duration timeout = policy.getTimeout();
List<String> arguments =
ProcessWrapperRunner.getCommandLine(
processWrapper, spawn.getArguments(), timeout, timeoutGraceSeconds);
Map<String, String> environment =
localEnvProvider.rewriteLocalEnv(spawn.getEnvironment(), execRoot, tmpDir, productName);
SandboxedSpawn sandbox =
new SymlinkedSandboxedSpawn(
sandboxPath,
sandboxExecRoot,
arguments,
environment,
SandboxHelpers.getInputFiles(spawn, policy, execRoot),
SandboxHelpers.getOutputFiles(spawn),
getWritableDirs(sandboxExecRoot, spawn.getEnvironment(), tmpDir));
return runSpawn(spawn, sandbox, policy, execRoot, tmpDir, timeout);
}
@Override
protected String getName() {
return "processwrapper-sandbox";
}
}
|
