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// 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.pkgcache;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
import com.google.devtools.build.lib.events.Event;
import com.google.devtools.build.lib.events.ExtendedEventHandler;
import com.google.devtools.build.lib.packages.Rule;
import com.google.devtools.build.lib.packages.Target;
import com.google.devtools.build.lib.packages.TargetUtils;
import com.google.devtools.build.lib.packages.TestSize;
import com.google.devtools.build.lib.packages.TestTimeout;
import com.google.devtools.build.lib.skyframe.serialization.ObjectCodec;
import com.google.devtools.build.lib.skyframe.serialization.autocodec.AutoCodec;
import java.util.HashSet;
import java.util.List;
import java.util.Objects;
import java.util.Set;
import java.util.function.Predicate;
import javax.annotation.Nullable;
/**
* Predicate that implements test filtering using the command-line options in {@link
* LoadingOptions}. Implements {@link #hashCode} and {@link #equals} so it can be used as a Skyframe
* key.
*/
@AutoCodec
public final class TestFilter implements com.google.common.base.Predicate<Target> {
public static final ObjectCodec<TestFilter> CODEC = new TestFilter_AutoCodec();
private static final Predicate<Target> ALWAYS_TRUE = (t) -> true;
/** Convert the options into a test filter. */
public static TestFilter forOptions(
LoadingOptions options, ExtendedEventHandler eventHandler, Set<String> ruleNames) {
if (!options.testLangFilterList.isEmpty()) {
checkLangFilters(options.testLangFilterList, eventHandler, ruleNames);
}
return new TestFilter(
ImmutableSet.copyOf(options.testSizeFilterSet),
ImmutableSet.copyOf(options.testTimeoutFilterSet),
ImmutableList.copyOf(options.testTagFilterList),
ImmutableList.copyOf(options.testLangFilterList));
}
private final ImmutableSet<TestSize> testSizeFilterSet;
private final ImmutableSet<TestTimeout> testTimeoutFilterSet;
private final ImmutableList<String> testTagFilterList;
private final ImmutableList<String> testLangFilterList;
private final Predicate<Target> impl;
@AutoCodec.VisibleForSerialization
TestFilter(
ImmutableSet<TestSize> testSizeFilterSet,
ImmutableSet<TestTimeout> testTimeoutFilterSet,
ImmutableList<String> testTagFilterList,
ImmutableList<String> testLangFilterList) {
this.testSizeFilterSet = testSizeFilterSet;
this.testTimeoutFilterSet = testTimeoutFilterSet;
this.testTagFilterList = testTagFilterList;
this.testLangFilterList = testLangFilterList;
Predicate<Target> testFilter = ALWAYS_TRUE;
if (!testSizeFilterSet.isEmpty()) {
testFilter = testFilter.and(testSizeFilter(testSizeFilterSet));
}
if (!testTimeoutFilterSet.isEmpty()) {
testFilter = testFilter.and(testTimeoutFilter(testTimeoutFilterSet));
}
if (!testTagFilterList.isEmpty()) {
testFilter = testFilter.and(TargetUtils.tagFilter(testTagFilterList));
}
if (!testLangFilterList.isEmpty()) {
testFilter = testFilter.and(testLangFilter(testLangFilterList));
}
impl = testFilter;
}
@Override
public boolean apply(@Nullable Target input) {
return impl.test(input);
}
@Override
public int hashCode() {
return Objects.hash(testSizeFilterSet, testTimeoutFilterSet, testTagFilterList,
testLangFilterList);
}
@Override
public boolean equals(Object o) {
if (o == this) {
return true;
}
if (!(o instanceof TestFilter)) {
return false;
}
TestFilter f = (TestFilter) o;
return f.testSizeFilterSet.equals(testSizeFilterSet)
&& f.testTimeoutFilterSet.equals(testTimeoutFilterSet)
&& f.testTagFilterList.equals(testTagFilterList)
&& f.testLangFilterList.equals(testLangFilterList);
}
/**
* Returns a predicate to be used for test size filtering, i.e., that only accepts tests of the
* given size.
*/
@VisibleForTesting
public static Predicate<Target> testSizeFilter(final Set<TestSize> allowedSizes) {
return target ->
target instanceof Rule && allowedSizes.contains(TestSize.getTestSize((Rule) target));
}
/**
* Returns a predicate to be used for test timeout filtering, i.e., that only accepts tests of the
* given timeout.
*/
@VisibleForTesting
public static Predicate<Target> testTimeoutFilter(final Set<TestTimeout> allowedTimeouts) {
return target ->
target instanceof Rule
&& allowedTimeouts.contains(TestTimeout.getTestTimeout((Rule) target));
}
/** Check languages specified in --test_lang_filters and warn if any of them are unknown. */
private static void checkLangFilters(
List<String> langFilterList, ExtendedEventHandler reporter, Set<String> allRuleNames) {
for (String lang : langFilterList) {
if (!allRuleNames.contains(lang + "_test")) {
reporter.handle(
Event.warn("Unknown language '" + lang + "' in --test_lang_filters option"));
}
}
}
/**
* Returns a predicate to be used for test language filtering, i.e., that only accepts tests of
* the specified languages.
*/
private static Predicate<Target> testLangFilter(List<String> langFilterList) {
final Set<String> requiredLangs = new HashSet<>();
final Set<String> excludedLangs = new HashSet<>();
for (String lang : langFilterList) {
if (lang.startsWith("-")) {
lang = lang.substring(1);
excludedLangs.add(lang);
} else {
requiredLangs.add(lang);
}
}
return rule -> {
String ruleLang = TargetUtils.getRuleLanguage(rule);
return (requiredLangs.isEmpty() || requiredLangs.contains(ruleLang))
&& !excludedLangs.contains(ruleLang);
};
}
}
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