Automated g4 rollback of commit 9dec9a09d1e4d27e7cff73c440195a32d3b90752.

PiperOrigin-RevId: 155194438

1 files changed, 0 insertions, 329 deletions

diff --git a/src/main/java/com/google/devtools/build/lib/skyframe/packages/AbstractPackageLoader.java b/src/main/java/com/google/devtools/build/lib/skyframe/packages/AbstractPackageLoader.java
deleted file mode 100644
index d0b771dc31..0000000000
--- a/src/main/java/com/google/devtools/build/lib/skyframe/packages/AbstractPackageLoader.java
+++ /dev/null
@@ -1,329 +0,0 @@
-// 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.skyframe.packages;
-
-import static com.google.common.base.Throwables.throwIfInstanceOf;
-
-import com.google.common.cache.Cache;
-import com.google.common.cache.CacheBuilder;
-import com.google.common.collect.ImmutableList;
-import com.google.common.collect.ImmutableMap;
-import com.google.common.collect.ImmutableSet;
-import com.google.common.collect.Iterables;
-import com.google.common.eventbus.EventBus;
-import com.google.devtools.build.lib.analysis.BlazeDirectories;
-import com.google.devtools.build.lib.cmdline.PackageIdentifier;
-import com.google.devtools.build.lib.events.Reporter;
-import com.google.devtools.build.lib.packages.AttributeContainer;
-import com.google.devtools.build.lib.packages.BuildFileContainsErrorsException;
-import com.google.devtools.build.lib.packages.CachingPackageLocator;
-import com.google.devtools.build.lib.packages.ConstantRuleVisibility;
-import com.google.devtools.build.lib.packages.NoSuchPackageException;
-import com.google.devtools.build.lib.packages.Package;
-import com.google.devtools.build.lib.packages.PackageFactory;
-import com.google.devtools.build.lib.packages.PackageFactory.EnvironmentExtension;
-import com.google.devtools.build.lib.packages.Preprocessor;
-import com.google.devtools.build.lib.packages.RuleClassProvider;
-import com.google.devtools.build.lib.pkgcache.PathPackageLocator;
-import com.google.devtools.build.lib.skyframe.ASTFileLookupFunction;
-import com.google.devtools.build.lib.skyframe.BlacklistedPackagePrefixesFunction;
-import com.google.devtools.build.lib.skyframe.ContainingPackageLookupFunction;
-import com.google.devtools.build.lib.skyframe.DirectoryListingFunction;
-import com.google.devtools.build.lib.skyframe.DirectoryListingStateFunction;
-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.FileSymlinkCycleUniquenessFunction;
-import com.google.devtools.build.lib.skyframe.FileSymlinkInfiniteExpansionUniquenessFunction;
-import com.google.devtools.build.lib.skyframe.GlobFunction;
-import com.google.devtools.build.lib.skyframe.PackageFunction;
-import com.google.devtools.build.lib.skyframe.PackageFunction.CacheEntryWithGlobDeps;
-import com.google.devtools.build.lib.skyframe.PackageLookupFunction;
-import com.google.devtools.build.lib.skyframe.PackageValue;
-import com.google.devtools.build.lib.skyframe.PrecomputedFunction;
-import com.google.devtools.build.lib.skyframe.PrecomputedValue;
-import com.google.devtools.build.lib.skyframe.SkyFunctions;
-import com.google.devtools.build.lib.skyframe.SkylarkImportLookupFunction;
-import com.google.devtools.build.lib.skyframe.WorkspaceASTFunction;
-import com.google.devtools.build.lib.skyframe.WorkspaceFileFunction;
-import com.google.devtools.build.lib.skyframe.WorkspaceNameFunction;
-import com.google.devtools.build.lib.syntax.SkylarkSemanticsOptions;
-import com.google.devtools.build.lib.util.BlazeClock;
-import com.google.devtools.build.lib.util.Preconditions;
-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.UnixGlob;
-import com.google.devtools.build.skyframe.BuildDriver;
-import com.google.devtools.build.skyframe.Differencer;
-import com.google.devtools.build.skyframe.ErrorInfo;
-import com.google.devtools.build.skyframe.EvaluationResult;
-import com.google.devtools.build.skyframe.ImmutableDiff;
-import com.google.devtools.build.skyframe.InMemoryMemoizingEvaluator;
-import com.google.devtools.build.skyframe.Injectable;
-import com.google.devtools.build.skyframe.MemoizingEvaluator;
-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 com.google.devtools.build.skyframe.Version;
-import com.google.devtools.build.skyframe.WalkableGraph;
-import com.google.devtools.common.options.Options;
-import java.util.HashMap;
-import java.util.Map;
-import java.util.concurrent.atomic.AtomicBoolean;
-import java.util.concurrent.atomic.AtomicInteger;
-import java.util.concurrent.atomic.AtomicReference;
-import javax.annotation.Nullable;
-
-/**
- * Abstract base class of a {@link PackageLoader} implementation that has no incrementality or
- * caching.
- */
-public abstract class AbstractPackageLoader implements PackageLoader {
-  private final ImmutableDiff preinjectedDiff;
-  private final Differencer preinjectedDifferencer = new Differencer() {
-    @Override
-    public Diff getDiff(WalkableGraph fromGraph, Version fromVersion, Version toVersion)
-        throws InterruptedException {
-      return preinjectedDiff;
-    }
-  };
-  private final Reporter reporter;
-  protected final RuleClassProvider ruleClassProvider;
-  protected final ImmutableMap<SkyFunctionName, SkyFunction> extraSkyFunctions;
-  protected final AtomicReference<PathPackageLocator> pkgLocatorRef;
-  protected final ExternalFilesHelper externalFilesHelper;
-  protected final AtomicReference<ImmutableSet<PackageIdentifier>> deletedPackagesRef =
-      new AtomicReference<>(ImmutableSet.<PackageIdentifier>of());
-  protected final CachingPackageLocator packageManager;
-  protected final BlazeDirectories directories;
-
-  /** Abstract base class of a builder for {@link PackageLoader} instances. */
-  public abstract static class Builder {
-    protected final Path workspaceDir;
-    protected RuleClassProvider ruleClassProvider = getDefaultRuleClassProvider();
-    protected Reporter reporter = new Reporter(new EventBus());
-    protected ImmutableMap<SkyFunctionName, SkyFunction> extraSkyFunctions = ImmutableMap.of();
-    protected ImmutableList<PrecomputedValue.Injected> extraPrecomputedValues = ImmutableList.of();
-    protected String defaultsPackageContents = getDefaultDefaulsPackageContents();
-
-    protected Builder(Path workspaceDir) {
-      this.workspaceDir = workspaceDir;
-    }
-
-    public Builder setRuleClassProvider(RuleClassProvider ruleClassProvider) {
-      this.ruleClassProvider = ruleClassProvider;
-      return this;
-    }
-
-    public Builder setDefaultsPackageContents(String defaultsPackageContents) {
-      this.defaultsPackageContents = defaultsPackageContents;
-      return this;
-    }
-
-    public Builder setReporter(Reporter reporter) {
-      this.reporter = reporter;
-      return this;
-    }
-
-    public Builder setExtraSkyFunctions(
-        ImmutableMap<SkyFunctionName, SkyFunction> extraSkyFunctions) {
-      this.extraSkyFunctions = extraSkyFunctions;
-      return this;
-    }
-
-    public Builder setExtraPrecomputedValues(
-        ImmutableList<PrecomputedValue.Injected> extraPrecomputedValues) {
-      this.extraPrecomputedValues = extraPrecomputedValues;
-      return this;
-    }
-
-    public abstract PackageLoader build();
-
-    protected abstract RuleClassProvider getDefaultRuleClassProvider();
-
-    protected abstract String getDefaultDefaulsPackageContents();
-  }
-
-  protected AbstractPackageLoader(Builder builder) {
-    Path workspaceDir = builder.workspaceDir;
-    PathPackageLocator pkgLocator =
-        new PathPackageLocator(null, ImmutableList.of(workspaceDir));
-    this.ruleClassProvider = builder.ruleClassProvider;
-    this.reporter = builder.reporter;
-    this.extraSkyFunctions = builder.extraSkyFunctions;
-    this.pkgLocatorRef = new AtomicReference<>(pkgLocator);
-
-    // The 'installBase' and 'outputBase' directories won't be meaningfully used by
-    // WorkspaceFileFunction, so we pass in a dummy Path.
-    // TODO(nharmata): Refactor WorkspaceFileFunction to make this a non-issue.
-    Path devNull = workspaceDir.getFileSystem().getPath("/dev/null");
-    this.directories = new BlazeDirectories(/*installBase=*/devNull,
-        /*outputBase=*/devNull, /*workspace=*/workspaceDir, "blaze");
-    this.externalFilesHelper = new ExternalFilesHelper(
-        pkgLocatorRef,
-        ExternalFileAction.DEPEND_ON_EXTERNAL_PKG_FOR_EXTERNAL_REPO_PATHS,
-        directories);
-    this.packageManager = new CachingPackageLocator() {
-      @Override
-      @Nullable
-      public Path getBuildFileForPackage(PackageIdentifier packageName) {
-        return pkgLocatorRef.get().getPackageBuildFileNullable(packageName,
-            UnixGlob.DEFAULT_SYSCALLS_REF);
-      }
-    };
-    this.preinjectedDiff = makePreinjectedDiff(
-        pkgLocator,
-        builder.defaultsPackageContents,
-        builder.extraPrecomputedValues,
-        directories);
-  }
-
-  private static ImmutableDiff makePreinjectedDiff(
-      PathPackageLocator pkgLocator,
-      String defaultsPackageContents,
-      ImmutableList<PrecomputedValue.Injected> extraPrecomputedValues,
-      BlazeDirectories directories) {
-    final Map<SkyKey, SkyValue> valuesToInject = new HashMap<>();
-    Injectable injectable =
-        new Injectable() {
-          @Override
-          public void inject(Map<SkyKey, ? extends SkyValue> values) {
-            valuesToInject.putAll(values);
-          }
-
-          @Override
-          public void inject(SkyKey key, SkyValue value) {
-            valuesToInject.put(key, value);
-          }
-        };
-    for (PrecomputedValue.Injected injected : extraPrecomputedValues) {
-      injected.inject(injectable);
-    }
-    PrecomputedValue.PATH_PACKAGE_LOCATOR.set(injectable, pkgLocator);
-    PrecomputedValue.DEFAULT_VISIBILITY.set(injectable, ConstantRuleVisibility.PRIVATE);
-    PrecomputedValue.SKYLARK_SEMANTICS.set(
-        injectable,
-        Options.getDefaults(SkylarkSemanticsOptions.class));
-    PrecomputedValue.DEFAULTS_PACKAGE_CONTENTS.set(injectable, defaultsPackageContents);
-    PrecomputedValue.BLACKLISTED_PACKAGE_PREFIXES_FILE.set(injectable, PathFragment.EMPTY_FRAGMENT);
-    PrecomputedValue.BLAZE_DIRECTORIES.set(injectable, directories);
-    return new ImmutableDiff(ImmutableList.<SkyKey>of(), valuesToInject);
-  }
-
-  /**
-   * Returns a {@link Package} instance, if any, representing the Blaze package specified by
-   * {@code pkgId}. Note that the returned {@link Package} instance may be in error (see
-   * {@link Package#containsErrors}), e.g. if there was syntax error in the package's BUILD file.
-   *
-   * @throws InterruptedException if the package loading was interrupted.
-   * @throws NoSuchPackageException if there was a non-recoverable error loading the package, e.g.
-   *     an io error reading the BUILD file.
-   */
-  @Override
-  public Package loadPackage(PackageIdentifier pkgId) throws NoSuchPackageException,
-      InterruptedException {
-    SkyKey key = PackageValue.key(pkgId);
-    EvaluationResult<PackageValue> result =
-        makeFreshDriver()
-            .evaluate(ImmutableList.of(key), /*keepGoing=*/ true, /*numThreads=*/ 1, reporter);
-    if (result.hasError()) {
-      ErrorInfo error = result.getError();
-      if (!Iterables.isEmpty(error.getCycleInfo())) {
-        throw new BuildFileContainsErrorsException(
-            pkgId, "Cycle encountered while loading package " + pkgId);
-      }
-      Throwable e = Preconditions.checkNotNull(error.getException());
-      throwIfInstanceOf(e, NoSuchPackageException.class);
-      throw new IllegalStateException("Unexpected Exception type from PackageValue for '"
-          + pkgId + "'' with root causes: " + Iterables.toString(error.getRootCauses()), e);
-    }
-    return result.get(key).getPackage();
-  }
-
-  private BuildDriver makeFreshDriver() {
-    return new SequentialBuildDriver(
-        InMemoryMemoizingEvaluator.SUPPLIER.create(
-            makeFreshSkyFunctions(),
-            preinjectedDifferencer,
-            /*progressReceiver=*/ null,
-            new MemoizingEvaluator.EmittedEventState(),
-            /*keepEdges=*/ false));
-  }
-
-  protected abstract String getName();
-  protected abstract ImmutableList<EnvironmentExtension> getEnvironmentExtensions();
-  protected abstract PackageLookupFunction makePackageLookupFunction();
-  protected abstract ImmutableMap<SkyFunctionName, SkyFunction> getExtraExtraSkyFunctions();
-
-  protected final ImmutableMap<SkyFunctionName, SkyFunction> makeFreshSkyFunctions() {
-    AtomicReference<TimestampGranularityMonitor> tsgm =
-        new AtomicReference<>(new TimestampGranularityMonitor(BlazeClock.instance()));
-    Cache<PackageIdentifier, CacheEntryWithGlobDeps<Package.Builder>> packageFunctionCache =
-        CacheBuilder.newBuilder().build();
-    Cache<PackageIdentifier, CacheEntryWithGlobDeps<Preprocessor.AstAfterPreprocessing>> astCache =
-        CacheBuilder.newBuilder().build();
-    PackageFactory pkgFactory = new PackageFactory(
-        ruleClassProvider,
-        null,
-        AttributeContainer.ATTRIBUTE_CONTAINER_FACTORY,
-        getEnvironmentExtensions(),
-        getName(),
-        Package.Builder.DefaultHelper.INSTANCE);
-    ImmutableMap.Builder<SkyFunctionName, SkyFunction> builder = ImmutableMap.builder();
-    builder
-        .put(SkyFunctions.PRECOMPUTED, new PrecomputedFunction())
-        .put(SkyFunctions.FILE_STATE, new FileStateFunction(tsgm, externalFilesHelper))
-        .put(
-            SkyFunctions.DIRECTORY_LISTING_STATE,
-            new DirectoryListingStateFunction(externalFilesHelper))
-        .put(SkyFunctions.FILE_SYMLINK_CYCLE_UNIQUENESS, new FileSymlinkCycleUniquenessFunction())
-        .put(
-            SkyFunctions.FILE_SYMLINK_INFINITE_EXPANSION_UNIQUENESS,
-            new FileSymlinkInfiniteExpansionUniquenessFunction())
-        .put(SkyFunctions.FILE, new FileFunction(pkgLocatorRef))
-        .put(SkyFunctions.DIRECTORY_LISTING, new DirectoryListingFunction())
-        .put(SkyFunctions.PACKAGE_LOOKUP, makePackageLookupFunction())
-        .put(SkyFunctions.BLACKLISTED_PACKAGE_PREFIXES, new BlacklistedPackagePrefixesFunction())
-        .put(SkyFunctions.CONTAINING_PACKAGE_LOOKUP, new ContainingPackageLookupFunction())
-        .put(SkyFunctions.AST_FILE_LOOKUP, new ASTFileLookupFunction(ruleClassProvider))
-        .put(
-            SkyFunctions.SKYLARK_IMPORTS_LOOKUP,
-            new SkylarkImportLookupFunction(ruleClassProvider, pkgFactory))
-        .put(SkyFunctions.WORKSPACE_NAME, new WorkspaceNameFunction())
-        .put(SkyFunctions.WORKSPACE_AST, new WorkspaceASTFunction(ruleClassProvider))
-        .put(
-            SkyFunctions.WORKSPACE_FILE,
-            new WorkspaceFileFunction(ruleClassProvider, pkgFactory, directories))
-        .put(SkyFunctions.EXTERNAL_PACKAGE, new ExternalPackageFunction())
-        .put(SkyFunctions.GLOB, new GlobFunction(/*alwaysUseDirListing=*/ false))
-        .put(
-            SkyFunctions.PACKAGE,
-            new PackageFunction(
-                pkgFactory,
-                packageManager,
-                /*showLoadingProgress=*/ new AtomicBoolean(false),
-                packageFunctionCache,
-                astCache,
-                /*numPackagesLoaded=*/ new AtomicInteger(0),
-                null))
-        .putAll(extraSkyFunctions)
-        .putAll(getExtraExtraSkyFunctions());
-    return builder.build();
-  }
-}