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
130
131
132
133
134
135
136
|
// 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.syntax;
import com.google.common.base.Joiner;
import com.google.common.base.Preconditions;
import com.google.common.base.Splitter;
import com.google.common.collect.ForwardingList;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableList.Builder;
import com.google.common.collect.Iterables;
import java.util.ArrayList;
import java.util.List;
/**
* Glob matches and information about glob patterns, which are useful to
* ide_build_info. Its implementation of the List interface is as an immutable
* list of the matching files. Glob criteria can be retrieved through
* {@link #getCriteria}.
*
* @param <E> the element this List contains (generally either String or Label)
*/
@SkylarkModule(
name = "glob list",
doc = "",
documented = false)
public final class GlobList<E> extends ForwardingList<E> implements SkylarkValue {
/** Include/exclude criteria. */
private final ImmutableList<GlobCriteria> criteria;
/** Matching files (usually either String or Label). */
private final ImmutableList<E> matches;
/**
* Constructs a list with {@code glob()} call results.
*
* @param includes the patterns that the glob includes
* @param excludes the patterns that the glob excludes
* @param matches the filenames that matched the includes/excludes criteria
*/
public static <T> GlobList<T> captureResults(List<String> includes,
List<String> excludes, List<T> matches) {
GlobCriteria criteria = GlobCriteria.fromGlobCall(
ImmutableList.copyOf(includes), ImmutableList.copyOf(excludes));
return new GlobList<>(ImmutableList.of(criteria), matches);
}
/**
* Parses a GlobInfo from its {@link #toExpression} representation.
*/
public static GlobList<String> parse(String text) {
List<GlobCriteria> criteria = new ArrayList<>();
Iterable<String> globs = Splitter.on(" + ").split(text);
for (String glob : globs) {
criteria.add(GlobCriteria.parse(glob));
}
return new GlobList<>(criteria, ImmutableList.<String>of());
}
/**
* Concatenates two lists into a new GlobList. If either of the lists is a
* GlobList, its GlobCriteria are preserved. Otherwise a simple GlobCriteria
* is created to represent the fixed list.
*/
public static <T> GlobList<T> concat(
List<? extends T> list1, List<? extends T> list2) {
// we add the list to both includes and matches, preserving order
Builder<GlobCriteria> criteriaBuilder = ImmutableList.<GlobCriteria>builder();
if (list1 instanceof GlobList<?>) {
criteriaBuilder.addAll(((GlobList<?>) list1).criteria);
} else {
criteriaBuilder.add(GlobCriteria.fromList(list1));
}
if (list2 instanceof GlobList<?>) {
criteriaBuilder.addAll(((GlobList<?>) list2).criteria);
} else {
criteriaBuilder.add(GlobCriteria.fromList(list2));
}
List<T> matches = ImmutableList.copyOf(Iterables.concat(list1, list2));
return new GlobList<>(criteriaBuilder.build(), matches);
}
/**
* Constructs a list with given criteria and matches.
*/
public GlobList(List<GlobCriteria> criteria, List<E> matches) {
Preconditions.checkNotNull(criteria);
Preconditions.checkNotNull(matches);
this.criteria = ImmutableList.copyOf(criteria);
this.matches = ImmutableList.copyOf(matches);
}
/**
* Returns the criteria used to create this list, from which the
* includes/excludes can be retrieved.
*/
public ImmutableList<GlobCriteria> getCriteria() {
return criteria;
}
/**
* Returns a String that represents this glob list as a BUILD expression.
*/
public String toExpression() {
return Joiner.on(" + ").join(criteria);
}
@Override
protected ImmutableList<E> delegate() {
return matches;
}
@Override
public boolean isImmutable() {
return false;
}
@Override
public void write(Appendable buffer, char quotationMark) {
Printer.printList(buffer, this, false, quotationMark);
}
}
|
