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
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
|
// 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.skyframe;
import com.google.devtools.build.lib.cmdline.Label;
import com.google.devtools.build.lib.cmdline.PackageIdentifier;
import com.google.devtools.build.lib.concurrent.ThreadSafety.ThreadSafe;
import com.google.devtools.build.lib.events.ExtendedEventHandler;
import com.google.devtools.build.lib.packages.NoSuchPackageException;
import com.google.devtools.build.lib.packages.NoSuchTargetException;
import com.google.devtools.build.lib.packages.Package;
import com.google.devtools.build.lib.packages.Target;
import com.google.devtools.build.lib.pkgcache.PackageManager;
import com.google.devtools.build.lib.pkgcache.PathPackageLocator;
import com.google.devtools.build.lib.pkgcache.TargetPatternEvaluator;
import com.google.devtools.build.lib.pkgcache.TransitivePackageLoader;
import com.google.devtools.build.lib.skyframe.SkyframeExecutor.SkyframePackageLoader;
import com.google.devtools.build.lib.vfs.Path;
import com.google.devtools.build.lib.vfs.UnixGlob;
import com.google.devtools.build.skyframe.CyclesReporter;
import java.io.PrintStream;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicReference;
/**
* Skyframe-based package manager.
*
* <p>This is essentially a compatibility shim between the native Skyframe and non-Skyframe
* parts of Blaze and should not be long-lived.
*/
class SkyframePackageManager implements PackageManager {
private final SkyframePackageLoader packageLoader;
private final SkyframeExecutor.SkyframeTransitivePackageLoader transitiveLoader;
private final AtomicReference<UnixGlob.FilesystemCalls> syscalls;
private final AtomicReference<CyclesReporter> skyframeCyclesReporter;
private final AtomicReference<PathPackageLocator> pkgLocator;
private final AtomicInteger numPackagesLoaded;
private final SkyframeExecutor skyframeExecutor;
public SkyframePackageManager(SkyframePackageLoader packageLoader,
SkyframeExecutor.SkyframeTransitivePackageLoader transitiveLoader,
AtomicReference<UnixGlob.FilesystemCalls> syscalls,
AtomicReference<CyclesReporter> skyframeCyclesReporter,
AtomicReference<PathPackageLocator> pkgLocator,
AtomicInteger numPackagesLoaded,
SkyframeExecutor skyframeExecutor) {
this.packageLoader = packageLoader;
this.transitiveLoader = transitiveLoader;
this.skyframeCyclesReporter = skyframeCyclesReporter;
this.pkgLocator = pkgLocator;
this.syscalls = syscalls;
this.numPackagesLoaded = numPackagesLoaded;
this.skyframeExecutor = skyframeExecutor;
}
@ThreadSafe
@Override
public Package getPackage(ExtendedEventHandler eventHandler, PackageIdentifier packageIdentifier)
throws NoSuchPackageException, InterruptedException {
return packageLoader.getPackage(eventHandler, packageIdentifier);
}
@Override
public Target getTarget(ExtendedEventHandler eventHandler, Label label)
throws NoSuchPackageException, NoSuchTargetException, InterruptedException {
return getPackage(eventHandler, label.getPackageIdentifier()).getTarget(label.getName());
}
@Override
public PackageManagerStatistics getStatistics() {
return new PackageManagerStatistics() {
@Override
public int getPackagesLoaded() {
return numPackagesLoaded.get();
}
};
}
@Override
public boolean isPackage(ExtendedEventHandler eventHandler, PackageIdentifier packageName) {
return getBuildFileForPackage(packageName) != null;
}
@Override
public void dump(PrintStream printStream) {
skyframeExecutor.dumpPackages(printStream);
}
@ThreadSafe
@Override
public Path getBuildFileForPackage(PackageIdentifier packageName) {
// Note that this method needs to be thread-safe, as it is currently used concurrently by
// legacy blaze code.
if (packageLoader.isPackageDeleted(packageName)) {
return null;
}
// TODO(bazel-team): Use a PackageLookupValue here [skyframe-loading]
// TODO(bazel-team): The implementation in PackageCache also checks for duplicate packages, see
// BuildFileCache#getBuildFile [skyframe-loading]
return pkgLocator.get().getPackageBuildFileNullable(packageName, syscalls);
}
@Override
public PathPackageLocator getPackagePath() {
return pkgLocator.get();
}
@Override
public TransitivePackageLoader newTransitiveLoader() {
return new SkyframeLabelVisitor(transitiveLoader, skyframeCyclesReporter);
}
@Override
public TargetPatternEvaluator newTargetPatternEvaluator() {
return new SkyframeTargetPatternEvaluator(skyframeExecutor);
}
}
|
