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// Copyright 2018 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.events.Event;
import com.google.devtools.build.lib.packages.AggregatingAttributeMapper;
import com.google.devtools.build.lib.packages.NoSuchPackageException;
import com.google.devtools.build.lib.packages.Package;
import com.google.devtools.build.lib.packages.Rule;
import com.google.devtools.build.lib.packages.TargetUtils;
import com.google.devtools.build.skyframe.GraphTraversingHelper;
import com.google.devtools.build.skyframe.SkyFunction;
import com.google.devtools.build.skyframe.SkyFunctionException;
import com.google.devtools.build.skyframe.SkyKey;
import com.google.devtools.build.skyframe.SkyValue;
import java.util.HashSet;
import java.util.Set;
import javax.annotation.Nullable;
/**
* {@link SkyFunction} to ensure dependencies on other such nodes for dependent packages inside
* test_suite rules' "tests" attribute.
*/
public class CollectTestSuitesInPackageFunction implements SkyFunction {
@Nullable
@Override
public SkyValue compute(SkyKey skyKey, Environment env)
throws SkyFunctionException, InterruptedException {
PackageIdentifier packageId = (PackageIdentifier) skyKey.argument();
PackageValue packageValue;
try {
packageValue = (PackageValue) env.getValueOrThrow(packageId, NoSuchPackageException.class);
} catch (NoSuchPackageException e) {
// If the argument is a package that doesn't exist, the aggregator function can return
// a success value immediately.
return CollectTestSuitesInPackageValue.INSTANCE;
}
if (env.valuesMissing()) {
return null;
}
Package pkg = packageValue.getPackage();
if (pkg.containsErrors()) {
env.getListener()
.handle(
Event.error(
"package contains errors: " + packageId.getPackageFragment().getPathString()));
}
// Force a dependency on any CollectTestSuitesInPackage(pkg) where pkg is any test_suite
// test dependency.
Set<Label> testTargets =
pkg.getTargets().values().stream()
.filter(TargetUtils::isTestSuiteRule)
.flatMap(
target ->
AggregatingAttributeMapper.of(((Rule) target))
.getReachableLabels("tests", /*includeSelectKeys=*/ false).stream())
.collect(ImmutableSet.toImmutableSet());
Set<SkyKey> collectTestSuiteInPkgDeps = new HashSet<>();
for (Label label : testTargets) {
collectTestSuiteInPkgDeps.add(
CollectTestSuitesInPackageValue.key(label.getPackageIdentifier()));
}
collectTestSuiteInPkgDeps.remove(skyKey);
return GraphTraversingHelper.declareDependenciesAndCheckIfValuesMissing(
env, collectTestSuiteInPkgDeps)
? null
: CollectTestSuitesInPackageValue.INSTANCE;
}
}