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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.skyframe;
import com.google.common.collect.ImmutableSet;
import com.google.devtools.build.lib.cmdline.Label;
import com.google.devtools.build.lib.cmdline.PackageIdentifier;
import com.google.devtools.build.lib.cmdline.ResolvedTargets;
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.packages.TargetUtils;
import com.google.devtools.build.lib.skyframe.TestSuiteExpansionValue.TestSuiteExpansionKey;
import com.google.devtools.build.skyframe.SkyFunction;
import com.google.devtools.build.skyframe.SkyKey;
import com.google.devtools.build.skyframe.SkyValue;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import javax.annotation.Nullable;
/**
* TestSuiteExpansionFunction takes a list of targets and expands all test suites in those targets.
*/
final class TestSuiteExpansionFunction implements SkyFunction {
@Override
public SkyValue compute(SkyKey key, Environment env) throws InterruptedException {
TestSuiteExpansionKey expansion = (TestSuiteExpansionKey) key.argument();
ResolvedTargets<Target> targets = labelsToTargets(env, expansion.getTargets(), false);
List<SkyKey> testsInSuitesKeys = new ArrayList<>();
for (Target target : targets.getTargets()) {
if (TargetUtils.isTestSuiteRule(target)) {
testsInSuitesKeys.add(TestsInSuiteValue.key(target, true));
}
}
Map<SkyKey, SkyValue> testsInSuites = env.getValues(testsInSuitesKeys);
if (env.valuesMissing()) {
return null;
}
Set<Label> result = new LinkedHashSet<>();
boolean hasError = targets.hasError();
for (Target target : targets.getTargets()) {
if (TargetUtils.isTestRule(target)) {
result.add(target.getLabel());
} else if (TargetUtils.isTestSuiteRule(target)) {
TestsInSuiteValue value = (TestsInSuiteValue) testsInSuites.get(
TestsInSuiteValue.key(target, true));
if (value != null) {
result.addAll(value.getLabels().getTargets());
hasError |= value.getLabels().hasError();
}
} else {
result.add(target.getLabel());
}
}
if (env.valuesMissing()) {
return null;
}
// We use ResolvedTargets in order to associate an error flag; the result should never contain
// any filtered targets.
return new TestSuiteExpansionValue(new ResolvedTargets<>(result, hasError));
}
static ResolvedTargets<Target> labelsToTargets(
Environment env, ImmutableSet<Label> labels, boolean hasError) throws InterruptedException {
Set<PackageIdentifier> pkgIdentifiers = new LinkedHashSet<>();
for (Label label : labels) {
pkgIdentifiers.add(label.getPackageIdentifier());
}
// Don't bother to check for exceptions - the incoming list should only contain valid targets.
Map<SkyKey, SkyValue> packages = env.getValues(PackageValue.keys(pkgIdentifiers));
if (env.valuesMissing()) {
return null;
}
ResolvedTargets.Builder<Target> builder = ResolvedTargets.builder();
builder.mergeError(hasError);
Map<PackageIdentifier, Package> packageMap = new HashMap<>();
for (Map.Entry<SkyKey, SkyValue> entry : packages.entrySet()) {
packageMap.put(
(PackageIdentifier) entry.getKey().argument(),
((PackageValue) entry.getValue()).getPackage());
}
for (Label label : labels) {
Package pkg = packageMap.get(label.getPackageIdentifier());
if (pkg == null) {
continue;
}
try {
builder.add(pkg.getTarget(label.getName()));
if (pkg.containsErrors()) {
builder.setError();
}
} catch (NoSuchTargetException e) {
builder.setError();
}
}
return builder.build();
}
@Nullable
@Override
public String extractTag(SkyKey skyKey) {
return null;
}
}
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