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
|
// Copyright 2015 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.actions;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Maps;
import com.google.devtools.build.lib.skyframe.serialization.autocodec.AutoCodec;
import com.google.devtools.build.lib.vfs.PathFragment;
import java.io.IOException;
import java.util.Map;
/** A {@link RunfilesSupplier} implementation for composing multiple instances. */
// TODO(michajlo): Move creation to factory constructor and optimize structure of the returned
// supplier, ie: [] -> EmptyRunfilesSupplier, [singleSupplier] -> supplier,
// [Empty, single] -> single, and so on.
@AutoCodec
public class CompositeRunfilesSupplier implements RunfilesSupplier {
private final ImmutableList<RunfilesSupplier> suppliers;
/** Create an instance with {@code first} taking precedence over {@code second}. */
public CompositeRunfilesSupplier(RunfilesSupplier first, RunfilesSupplier second) {
this(ImmutableList.of(first, second));
}
/**
* Create an instance combining all of {@code suppliers}, with earlier elements taking precedence.
*/
@AutoCodec.Instantiator
public CompositeRunfilesSupplier(Iterable<RunfilesSupplier> suppliers) {
this.suppliers = ImmutableList.copyOf(suppliers);
}
@Override
public Iterable<Artifact> getArtifacts() {
ImmutableSet.Builder<Artifact> result = ImmutableSet.builder();
for (RunfilesSupplier supplier : suppliers) {
result.addAll(supplier.getArtifacts());
}
return result.build();
}
@Override
public ImmutableSet<PathFragment> getRunfilesDirs() {
ImmutableSet.Builder<PathFragment> result = ImmutableSet.builder();
for (RunfilesSupplier supplier : suppliers) {
result.addAll(supplier.getRunfilesDirs());
}
return result.build();
}
@Override
public ImmutableMap<PathFragment, Map<PathFragment, Artifact>> getMappings() throws IOException {
Map<PathFragment, Map<PathFragment, Artifact>> result = Maps.newHashMap();
for (RunfilesSupplier supplier : suppliers) {
Map<PathFragment, Map<PathFragment, Artifact>> mappings = supplier.getMappings();
for (Map.Entry<PathFragment, Map<PathFragment, Artifact>> entry : mappings.entrySet()) {
result.putIfAbsent(entry.getKey(), entry.getValue());
}
}
return ImmutableMap.copyOf(result);
}
@Override
public ImmutableList<Artifact> getManifests() {
ImmutableList.Builder<Artifact> result = ImmutableList.builder();
for (RunfilesSupplier supplier : suppliers) {
result.addAll(supplier.getManifests());
}
return result.build();
}
}
|
