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// Copyright 2017 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.rules.repository;
import static com.google.common.truth.Truth.assertThat;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.devtools.build.lib.analysis.BlazeDirectories;
import com.google.devtools.build.lib.analysis.ServerDirectories;
import com.google.devtools.build.lib.cmdline.RepositoryName;
import com.google.devtools.build.lib.events.StoredEventHandler;
import com.google.devtools.build.lib.pkgcache.PathPackageLocator;
import com.google.devtools.build.lib.skyframe.BazelSkyframeExecutorConstants;
import com.google.devtools.build.lib.skyframe.ExternalFilesHelper;
import com.google.devtools.build.lib.skyframe.ExternalFilesHelper.ExternalFileAction;
import com.google.devtools.build.lib.skyframe.ExternalPackageFunction;
import com.google.devtools.build.lib.skyframe.FileFunction;
import com.google.devtools.build.lib.skyframe.FileStateFunction;
import com.google.devtools.build.lib.skyframe.LocalRepositoryLookupFunction;
import com.google.devtools.build.lib.skyframe.PackageFunction;
import com.google.devtools.build.lib.skyframe.PackageLookupFunction;
import com.google.devtools.build.lib.skyframe.PackageLookupFunction.CrossRepositoryLabelViolationStrategy;
import com.google.devtools.build.lib.skyframe.PrecomputedValue;
import com.google.devtools.build.lib.skyframe.SkyFunctions;
import com.google.devtools.build.lib.skyframe.WorkspaceASTFunction;
import com.google.devtools.build.lib.skyframe.WorkspaceFileFunction;
import com.google.devtools.build.lib.syntax.SkylarkSemantics;
import com.google.devtools.build.lib.testutil.FoundationTestCase;
import com.google.devtools.build.lib.testutil.TestConstants;
import com.google.devtools.build.lib.testutil.TestRuleClassProvider;
import com.google.devtools.build.lib.util.io.TimestampGranularityMonitor;
import com.google.devtools.build.lib.vfs.Path;
import com.google.devtools.build.lib.vfs.PathFragment;
import com.google.devtools.build.lib.vfs.Root;
import com.google.devtools.build.skyframe.EvaluationResult;
import com.google.devtools.build.skyframe.InMemoryMemoizingEvaluator;
import com.google.devtools.build.skyframe.MemoizingEvaluator;
import com.google.devtools.build.skyframe.RecordingDifferencer;
import com.google.devtools.build.skyframe.SequencedRecordingDifferencer;
import com.google.devtools.build.skyframe.SequentialBuildDriver;
import com.google.devtools.build.skyframe.SkyFunction;
import com.google.devtools.build.skyframe.SkyFunctionName;
import com.google.devtools.build.skyframe.SkyKey;
import com.google.devtools.build.skyframe.SkyValue;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicReference;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/**
* Tests for {@link RepositoryDelegatorFunction}
*/
@RunWith(JUnit4.class)
public class RepositoryDelegatorTest extends FoundationTestCase {
private RepositoryDelegatorFunction delegatorFunction;
private Path overrideDirectory;
private SequentialBuildDriver driver;
@Before
public void setupDelegator() throws Exception {
Path root = scratch.dir("/outputbase");
BlazeDirectories directories =
new BlazeDirectories(
new ServerDirectories(root, root, root),
root,
/* defaultSystemJavabase= */ null,
TestConstants.PRODUCT_NAME);
delegatorFunction =
new RepositoryDelegatorFunction(
ImmutableMap.of(), null, new AtomicBoolean(true), ImmutableMap::of, directories);
AtomicReference<PathPackageLocator> pkgLocator =
new AtomicReference<>(
new PathPackageLocator(
root,
ImmutableList.of(Root.fromPath(root)),
BazelSkyframeExecutorConstants.BUILD_FILES_BY_PRIORITY));
ExternalFilesHelper externalFilesHelper = ExternalFilesHelper.createForTesting(
pkgLocator,
ExternalFileAction.DEPEND_ON_EXTERNAL_PKG_FOR_EXTERNAL_REPO_PATHS,
directories);
RecordingDifferencer differencer = new SequencedRecordingDifferencer();
MemoizingEvaluator evaluator =
new InMemoryMemoizingEvaluator(
ImmutableMap.<SkyFunctionName, SkyFunction>builder()
.put(
SkyFunctions.FILE_STATE,
new FileStateFunction(
new AtomicReference<TimestampGranularityMonitor>(), externalFilesHelper))
.put(SkyFunctions.FILE, new FileFunction(pkgLocator))
.put(SkyFunctions.REPOSITORY_DIRECTORY, delegatorFunction)
.put(
SkyFunctions.PACKAGE,
new PackageFunction(null, null, null, null, null, null, null))
.put(
SkyFunctions.PACKAGE_LOOKUP,
new PackageLookupFunction(
null,
CrossRepositoryLabelViolationStrategy.ERROR,
BazelSkyframeExecutorConstants.BUILD_FILES_BY_PRIORITY))
.put(
SkyFunctions.WORKSPACE_AST,
new WorkspaceASTFunction(TestRuleClassProvider.getRuleClassProvider()))
.put(
SkyFunctions.WORKSPACE_FILE,
new WorkspaceFileFunction(
TestRuleClassProvider.getRuleClassProvider(),
TestConstants.PACKAGE_FACTORY_BUILDER_FACTORY_FOR_TESTING
.builder(directories)
.build(TestRuleClassProvider.getRuleClassProvider()),
directories))
.put(SkyFunctions.LOCAL_REPOSITORY_LOOKUP, new LocalRepositoryLookupFunction())
.put(SkyFunctions.EXTERNAL_PACKAGE, new ExternalPackageFunction())
.build(),
differencer);
driver = new SequentialBuildDriver(evaluator);
overrideDirectory = scratch.dir("/foo");
scratch.file("/foo/WORKSPACE");
RepositoryDelegatorFunction.REPOSITORY_OVERRIDES.set(
differencer,
ImmutableMap.<RepositoryName, PathFragment>builder()
.put(RepositoryName.createFromValidStrippedName("foo"), overrideDirectory.asFragment())
.build());
PrecomputedValue.PATH_PACKAGE_LOCATOR.set(differencer, pkgLocator.get());
PrecomputedValue.SKYLARK_SEMANTICS.set(differencer, SkylarkSemantics.DEFAULT_SEMANTICS);
}
@Test
public void testOverride() throws Exception {
StoredEventHandler eventHandler = new StoredEventHandler();
SkyKey key = RepositoryDirectoryValue.key(RepositoryName.createFromValidStrippedName("foo"));
EvaluationResult<SkyValue> result =
driver.evaluate(ImmutableList.of(key), false, 8, eventHandler);
assertThat(result.hasError()).isFalse();
RepositoryDirectoryValue repositoryDirectoryValue = (RepositoryDirectoryValue) result.get(key);
Path expectedPath = scratch.dir("/outputbase/external/foo");
Path actualPath = repositoryDirectoryValue.getPath();
assertThat(actualPath).isEqualTo(expectedPath);
assertThat(actualPath.isSymbolicLink()).isTrue();
assertThat(actualPath.readSymbolicLink()).isEqualTo(overrideDirectory.asFragment());
}
}
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