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Lberki cherrypick 8.0.0 ignored subdirectories (#23999)
As discussed; for ease of further cherry-picking, it's probably a good idea to cherry-pick this big refactoring to 8.0.0 .
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127 changes: 127 additions & 0 deletions
127
src/main/java/com/google/devtools/build/lib/cmdline/IgnoredSubdirectories.java
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| @@ -0,0 +1,127 @@ | ||
| // Copyright 2024 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. | ||
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| package com.google.devtools.build.lib.cmdline; | ||
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| import static com.google.common.collect.ImmutableSet.toImmutableSet; | ||
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| import com.google.common.base.MoreObjects; | ||
| import com.google.common.base.Preconditions; | ||
| import com.google.common.collect.ImmutableSet; | ||
| import com.google.devtools.build.lib.vfs.PathFragment; | ||
| import java.util.Objects; | ||
| import javax.annotation.Nullable; | ||
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| /** | ||
| * A set of subdirectories to ignore during target pattern matching or globbing. | ||
| * | ||
| * <p>This is currently just a prefix, but will eventually support glob-style wildcards. | ||
| */ | ||
| public final class IgnoredSubdirectories { | ||
| public static final IgnoredSubdirectories EMPTY = new IgnoredSubdirectories(ImmutableSet.of()); | ||
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| private final ImmutableSet<PathFragment> prefixes; | ||
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| private IgnoredSubdirectories(ImmutableSet<PathFragment> prefixes) { | ||
| for (PathFragment prefix : prefixes) { | ||
| Preconditions.checkArgument(!prefix.isAbsolute()); | ||
| } | ||
| this.prefixes = prefixes; | ||
| } | ||
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| public static IgnoredSubdirectories of(ImmutableSet<PathFragment> prefixes) { | ||
| if (prefixes.isEmpty()) { | ||
| return EMPTY; | ||
| } else { | ||
| return new IgnoredSubdirectories(prefixes); | ||
| } | ||
| } | ||
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| public IgnoredSubdirectories withPrefix(PathFragment prefix) { | ||
| ImmutableSet<PathFragment> prefixed = | ||
| prefixes.stream().map(prefix::getRelative).collect(toImmutableSet()); | ||
| return new IgnoredSubdirectories(prefixed); | ||
| } | ||
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| public IgnoredSubdirectories union(IgnoredSubdirectories other) { | ||
| return new IgnoredSubdirectories( | ||
| ImmutableSet.<PathFragment>builder().addAll(prefixes).addAll(other.prefixes).build()); | ||
| } | ||
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| /** Filters out entries that cannot match anything under {@code directory}. */ | ||
| public IgnoredSubdirectories filterForDirectory(PathFragment directory) { | ||
| ImmutableSet<PathFragment> filteredPrefixes = | ||
| prefixes.stream().filter(p -> p.startsWith(directory)).collect(toImmutableSet()); | ||
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| return new IgnoredSubdirectories(filteredPrefixes); | ||
| } | ||
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| public ImmutableSet<PathFragment> prefixes() { | ||
| return prefixes; | ||
| } | ||
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| public boolean isEmpty() { | ||
| return this.prefixes.isEmpty(); | ||
| } | ||
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| /** | ||
| * Checks whether every path in this instance can conceivably match something under {@code | ||
| * directory}. | ||
| */ | ||
| public boolean allPathsAreUnder(PathFragment directory) { | ||
| for (PathFragment prefix : prefixes) { | ||
| if (!prefix.startsWith(directory)) { | ||
| return false; | ||
| } | ||
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| if (prefix.equals(directory)) { | ||
| return false; | ||
| } | ||
| } | ||
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| return true; | ||
| } | ||
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| /** Returns the entry that matches a given directory or {@code null} if none. */ | ||
| @Nullable | ||
| public PathFragment matchingEntry(PathFragment directory) { | ||
| for (PathFragment prefix : prefixes) { | ||
| if (directory.startsWith(prefix)) { | ||
| return prefix; | ||
| } | ||
| } | ||
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| return null; | ||
| } | ||
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| @Override | ||
| public boolean equals(Object other) { | ||
| if (!(other instanceof IgnoredSubdirectories)) { | ||
| return false; | ||
| } | ||
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| IgnoredSubdirectories that = (IgnoredSubdirectories) other; | ||
| return Objects.equals(this.prefixes, that.prefixes); | ||
| } | ||
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| @Override | ||
| public int hashCode() { | ||
| return prefixes.hashCode(); | ||
| } | ||
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| @Override | ||
| public String toString() { | ||
| return MoreObjects.toStringHelper("IgnoredSubdirectories").add("prefixes", prefixes).toString(); | ||
| } | ||
| } |
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