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// Copyright 2023 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 static com.google.common.truth.Truth.assertThat;
import static com.google.common.truth.Truth.assertWithMessage;
import static org.junit.Assert.fail;
import com.google.common.base.Throwables;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
import com.google.devtools.build.lib.actions.FileStateValue;
import com.google.devtools.build.lib.testutil.Scratch;
import com.google.devtools.build.lib.vfs.DelegateFileSystem;
import com.google.devtools.build.lib.vfs.Dirent;
import com.google.devtools.build.lib.vfs.FileStateKey;
import com.google.devtools.build.lib.vfs.FileStatus;
import com.google.devtools.build.lib.vfs.FileSystem;
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.lib.vfs.RootedPath;
import com.google.devtools.build.lib.vfs.SyscallCache;
import com.google.devtools.build.skyframe.InMemoryGraph;
import com.google.errorprone.annotations.ForOverride;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import javax.annotation.Nullable;
import org.junit.After;
import org.junit.Before;
public class FileSystemValueCheckerInferringAncestorsTestBase {
protected final Scratch scratch = new Scratch();
protected final List<String> statedPaths = new ArrayList<>();
protected DefaultSyscallCache syscallCache = DefaultSyscallCache.newBuilder().build();
protected Root root;
protected InMemoryGraph inMemoryGraph;
protected Exception throwOnStat;
private Root untrackedRoot;
@Before
public void setUpGraphAndRoot() throws IOException {
createGraph();
Path srcRootPath = scratch.dir("/src");
PathFragment srcRoot = srcRootPath.asFragment();
FileSystem trackingFileSystem =
new DelegateFileSystem(scratch.getFileSystem()) {
@Nullable
@Override
public synchronized FileStatus statIfFound(PathFragment path, boolean followSymlinks)
throws IOException {
if (throwOnStat != null) {
Exception toThrow = throwOnStat;
throwOnStat = null;
Throwables.propagateIfPossible(toThrow, IOException.class);
fail("Unexpected exception type");
}
statedPaths.add(path.relativeTo(srcRoot).toString());
return super.statIfFound(path, followSymlinks);
}
};
root = Root.fromPath(trackingFileSystem.getPath(srcRoot));
scratch.setWorkingDir("/src");
untrackedRoot = Root.fromPath(srcRootPath);
}
@ForOverride
protected void createGraph() {
inMemoryGraph = InMemoryGraph.create();
}
@After
public void checkExceptionThrown() {
assertThat(throwOnStat).isNull();
syscallCache.clear();
}
protected FileStateKey fileStateValueKey(String relativePath) {
return FileStateValue.key(
RootedPath.toRootedPath(root, root.asPath().getRelative(relativePath)));
}
protected DirectoryListingStateValue.Key directoryListingStateValueKey(String relativePath) {
return DirectoryListingStateValue.key(
RootedPath.toRootedPath(root, root.asPath().getRelative(relativePath)));
}
protected FileStateValue fileStateValue(String relativePath) throws IOException {
return FileStateValue.create(
RootedPath.toRootedPath(
untrackedRoot, untrackedRoot.asPath().asFragment().getRelative(relativePath)),
SyscallCache.NO_CACHE,
/* tsgm= */ null);
}
protected static DirectoryListingStateValue directoryListingStateValue(Dirent... dirents) {
return DirectoryListingStateValue.create(ImmutableList.copyOf(dirents));
}
protected static <T> void assertIsSubsetOf(Iterable<T> list, T... elements) {
ImmutableSet<T> set = ImmutableSet.copyOf(elements);
assertWithMessage("%s has elements from outside of %s", list, set)
.that(set)
.containsAtLeastElementsIn(list);
}
}