Remove support for managed directories.

Fixes #15463.

The design doc for the deprecation and the removal is available here:

https://docs.google.com/document/d/1u9V5RUc7i6Urh8gGfnSurxpWA7JMRtwCi1Pr5BHeE44/edit

RELNOTES: --noincompatible_disable_managed_directories, and with that, workspace(managed_directories=) is not supported anymore.
PiperOrigin-RevId: 456228902
Change-Id: I5fcbf96b9a508f47cbcabf9715163cd7120020bf
diff --git a/src/main/java/com/google/devtools/build/lib/bazel/BUILD b/src/main/java/com/google/devtools/build/lib/bazel/BUILD
index 04c4235..0e9a318 100644
--- a/src/main/java/com/google/devtools/build/lib/bazel/BUILD
+++ b/src/main/java/com/google/devtools/build/lib/bazel/BUILD
@@ -42,7 +42,6 @@
         "//src/main/java/com/google/devtools/build/lib/events",
         "//src/main/java/com/google/devtools/build/lib/pkgcache",
         "//src/main/java/com/google/devtools/build/lib/rules:repository/local_repository_rule",
-        "//src/main/java/com/google/devtools/build/lib/rules:repository/managed_directories_knowledge_impl",
         "//src/main/java/com/google/devtools/build/lib/rules:repository/new_local_repository_function",
         "//src/main/java/com/google/devtools/build/lib/rules:repository/new_local_repository_rule",
         "//src/main/java/com/google/devtools/build/lib/rules:repository/repository_function",
diff --git a/src/main/java/com/google/devtools/build/lib/bazel/BazelRepositoryModule.java b/src/main/java/com/google/devtools/build/lib/bazel/BazelRepositoryModule.java
index 8bf9411..cc7aae9 100644
--- a/src/main/java/com/google/devtools/build/lib/bazel/BazelRepositoryModule.java
+++ b/src/main/java/com/google/devtools/build/lib/bazel/BazelRepositoryModule.java
@@ -61,8 +61,6 @@
 import com.google.devtools.build.lib.pkgcache.PackageOptions;
 import com.google.devtools.build.lib.rules.repository.LocalRepositoryFunction;
 import com.google.devtools.build.lib.rules.repository.LocalRepositoryRule;
-import com.google.devtools.build.lib.rules.repository.ManagedDirectoriesKnowledgeImpl;
-import com.google.devtools.build.lib.rules.repository.ManagedDirectoriesKnowledgeImpl.ManagedDirectoriesListener;
 import com.google.devtools.build.lib.rules.repository.NewLocalRepositoryFunction;
 import com.google.devtools.build.lib.rules.repository.NewLocalRepositoryRule;
 import com.google.devtools.build.lib.rules.repository.RepositoryDelegatorFunction;
@@ -134,9 +132,6 @@
   private Set<String> outputVerificationRules = ImmutableSet.of();
   private FileSystem filesystem;
   private List<String> registries;
-  // We hold the precomputed value of the managed directories here, so that the dependency
-  // on WorkspaceFileValue is not registered for each FileStateValue.
-  private final ManagedDirectoriesKnowledgeImpl managedDirectoriesKnowledge;
   private final AtomicBoolean enableBzlmod = new AtomicBoolean(false);
   private final AtomicBoolean ignoreDevDeps = new AtomicBoolean(false);
   private CheckDirectDepsMode checkDirectDepsMode = CheckDirectDepsMode.WARNING;
@@ -145,24 +140,6 @@
   public BazelRepositoryModule() {
     this.starlarkRepositoryFunction = new StarlarkRepositoryFunction(downloadManager);
     this.repositoryHandlers = repositoryRules();
-    ManagedDirectoriesListener listener =
-        repositoryNamesWithManagedDirs -> {
-          Set<String> conflicting =
-              overrides.keySet().stream()
-                  .filter(repositoryNamesWithManagedDirs::contains)
-                  .map(RepositoryName::getNameWithAt)
-                  .collect(Collectors.toSet());
-          if (!conflicting.isEmpty()) {
-            String message =
-                "Overriding repositories is not allowed"
-                    + " for the repositories with managed directories.\n"
-                    + "The following overridden external repositories have managed directories: "
-                    + String.join(", ", conflicting.toArray(new String[0]));
-            throw new AbruptExitException(
-                detailedExitCode(message, Code.OVERRIDE_DISALLOWED_MANAGED_DIRECTORIES));
-          }
-        };
-    managedDirectoriesKnowledge = new ManagedDirectoriesKnowledgeImpl(listener);
   }
 
   private static DetailedExitCode detailedExitCode(String message, ExternalRepository.Code code) {
@@ -214,9 +191,7 @@
     if ("bazel".equals(runtime.getProductName())) {
       builder.setSkyframeExecutorRepositoryHelpersHolder(
           SkyframeExecutorRepositoryHelpersHolder.create(
-              managedDirectoriesKnowledge,
-              new RepositoryDirectoryDirtinessChecker(
-                  directories.getWorkspace(), managedDirectoriesKnowledge)));
+              new RepositoryDirectoryDirtinessChecker()));
     }
 
     // Create the repository function everything flows through.
@@ -227,7 +202,6 @@
             isFetch,
             clientEnvironmentSupplier,
             directories,
-            managedDirectoriesKnowledge,
             BazelSkyframeExecutorConstants.EXTERNAL_PACKAGE_HELPER);
     RegistryFactory registryFactory =
         new RegistryFactoryImpl(new HttpDownloader(), clientEnvironmentSupplier);
diff --git a/src/main/java/com/google/devtools/build/lib/bazel/rules/BazelRulesModule.java b/src/main/java/com/google/devtools/build/lib/bazel/rules/BazelRulesModule.java
index a523f00..6b80558 100644
--- a/src/main/java/com/google/devtools/build/lib/bazel/rules/BazelRulesModule.java
+++ b/src/main/java/com/google/devtools/build/lib/bazel/rules/BazelRulesModule.java
@@ -515,6 +515,14 @@
         effectTags = {OptionEffectTag.NO_OP},
         help = "No-op")
     public boolean keepConfigNodes;
+
+    @Option(
+        name = "incompatible_disable_managed_directories",
+        defaultValue = "false",
+        documentationCategory = OptionDocumentationCategory.UNDOCUMENTED,
+        effectTags = {OptionEffectTag.NO_OP},
+        help = "No-op")
+    public boolean incompatibleDisableManagedDirectories;
   }
 
   @Override
diff --git a/src/main/java/com/google/devtools/build/lib/packages/WorkspaceFactory.java b/src/main/java/com/google/devtools/build/lib/packages/WorkspaceFactory.java
index 3b69ca0..b041955 100644
--- a/src/main/java/com/google/devtools/build/lib/packages/WorkspaceFactory.java
+++ b/src/main/java/com/google/devtools/build/lib/packages/WorkspaceFactory.java
@@ -17,7 +17,6 @@
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableMap;
 import com.google.devtools.build.lib.cmdline.LabelSyntaxException;
-import com.google.devtools.build.lib.cmdline.RepositoryName;
 import com.google.devtools.build.lib.events.Event;
 import com.google.devtools.build.lib.events.NullEventHandler;
 import com.google.devtools.build.lib.events.StoredEventHandler;
@@ -26,7 +25,6 @@
 import com.google.devtools.build.lib.server.FailureDetails;
 import com.google.devtools.build.lib.server.FailureDetails.PackageLoading;
 import com.google.devtools.build.lib.vfs.Path;
-import com.google.devtools.build.lib.vfs.PathFragment;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
@@ -398,8 +396,4 @@
   public Map<String, Object> getVariableBindings() {
     return ImmutableMap.copyOf(bindings);
   }
-
-  public Map<PathFragment, RepositoryName> getManagedDirectories() {
-    return workspaceGlobals.getManagedDirectories();
-  }
 }
diff --git a/src/main/java/com/google/devtools/build/lib/packages/WorkspaceFileValue.java b/src/main/java/com/google/devtools/build/lib/packages/WorkspaceFileValue.java
index 8f15a74..8f972a54 100644
--- a/src/main/java/com/google/devtools/build/lib/packages/WorkspaceFileValue.java
+++ b/src/main/java/com/google/devtools/build/lib/packages/WorkspaceFileValue.java
@@ -21,7 +21,6 @@
 import com.google.devtools.build.lib.concurrent.BlazeInterners;
 import com.google.devtools.build.lib.concurrent.ThreadSafety.Immutable;
 import com.google.devtools.build.lib.skyframe.serialization.autocodec.AutoCodec;
-import com.google.devtools.build.lib.vfs.PathFragment;
 import com.google.devtools.build.lib.vfs.RootedPath;
 import com.google.devtools.build.skyframe.SkyFunctionName;
 import com.google.devtools.build.skyframe.SkyKey;
@@ -104,9 +103,6 @@
   private final ImmutableMap<String, Integer> loadToChunkMap;
   private final ImmutableMap<RepositoryName, ImmutableMap<String, RepositoryName>>
       repositoryMapping;
-  // Mapping of the relative paths of the incrementally updated managed directories
-  // to the managing external repositories
-  private final ImmutableMap<PathFragment, RepositoryName> managedDirectories;
 
   /**
    * Create a WorkspaceFileValue containing the various values necessary to compute the split
@@ -124,7 +120,6 @@
    * @param idx The index of this part of the split WORKSPACE file (0 for the first one, 1 for the
    *     second one and so on).
    * @param hasNext Is there a next part in the WORKSPACE file or this part the last one?
-   * @param managedDirectories Mapping of the relative paths of the incrementally updated managed
    */
   public WorkspaceFileValue(
       Package pkg,
@@ -133,8 +128,7 @@
       Map<String, Object> bindings,
       RootedPath path,
       int idx,
-      boolean hasNext,
-      ImmutableMap<PathFragment, RepositoryName> managedDirectories) {
+      boolean hasNext) {
     this.pkg = Preconditions.checkNotNull(pkg);
     this.idx = idx;
     this.path = path;
@@ -143,7 +137,6 @@
     this.loadedModules = ImmutableMap.copyOf(loadedModules);
     this.loadToChunkMap = ImmutableMap.copyOf(loadToChunkMap);
     this.repositoryMapping = pkg.getExternalPackageRepositoryMappings();
-    this.managedDirectories = managedDirectories;
   }
 
   /**
@@ -224,8 +217,4 @@
   public ImmutableMap<RepositoryName, ImmutableMap<String, RepositoryName>> getRepositoryMapping() {
     return repositoryMapping;
   }
-
-  public ImmutableMap<PathFragment, RepositoryName> getManagedDirectories() {
-    return managedDirectories;
-  }
 }
diff --git a/src/main/java/com/google/devtools/build/lib/packages/WorkspaceGlobals.java b/src/main/java/com/google/devtools/build/lib/packages/WorkspaceGlobals.java
index f277bde..1751bfc 100644
--- a/src/main/java/com/google/devtools/build/lib/packages/WorkspaceGlobals.java
+++ b/src/main/java/com/google/devtools/build/lib/packages/WorkspaceGlobals.java
@@ -18,8 +18,6 @@
 
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableMap;
-import com.google.common.collect.Lists;
-import com.google.common.collect.Maps;
 import com.google.devtools.build.lib.cmdline.BazelModuleContext;
 import com.google.devtools.build.lib.cmdline.Label;
 import com.google.devtools.build.lib.cmdline.LabelSyntaxException;
@@ -30,15 +28,12 @@
 import com.google.devtools.build.lib.cmdline.TargetPattern;
 import com.google.devtools.build.lib.packages.Package.NameConflictException;
 import com.google.devtools.build.lib.packages.RuleFactory.InvalidRuleException;
-import com.google.devtools.build.lib.packages.semantics.BuildLanguageOptions;
 import com.google.devtools.build.lib.starlarkbuildapi.WorkspaceGlobalsApi;
 import com.google.devtools.build.lib.vfs.PathFragment;
 import java.util.List;
 import java.util.Map;
-import java.util.TreeMap;
 import java.util.regex.Pattern;
 import javax.annotation.Nullable;
-import net.starlark.java.eval.Dict;
 import net.starlark.java.eval.EvalException;
 import net.starlark.java.eval.Module;
 import net.starlark.java.eval.Sequence;
@@ -53,20 +48,15 @@
 
   private final boolean allowOverride;
   private final RuleFactory ruleFactory;
-  // Mapping of the relative paths of the incrementally updated managed directories
-  // to the managing external repositories
-  private final TreeMap<PathFragment, RepositoryName> managedDirectoriesMap;
 
   public WorkspaceGlobals(boolean allowOverride, RuleFactory ruleFactory) {
     this.allowOverride = allowOverride;
     this.ruleFactory = ruleFactory;
-    this.managedDirectoriesMap = Maps.newTreeMap();
   }
 
   @Override
   public void workspace(
       String name,
-      Dict<?, ?> managedDirectories, // <String, Object>
       StarlarkThread thread)
       throws EvalException, InterruptedException {
     if (!allowOverride) {
@@ -101,95 +91,6 @@
     // Add entry in repository map from "@name" --> "@" to avoid issue where bazel
     // treats references to @name as a separate external repo
     builder.addRepositoryMappingEntry(RepositoryName.MAIN, name, RepositoryName.MAIN);
-    parseManagedDirectories(
-        thread.getSemantics().getBool(BuildLanguageOptions.INCOMPATIBLE_DISABLE_MANAGE_DIRECTORIES),
-        Dict.cast(managedDirectories, String.class, Object.class, "managed_directories"));
-  }
-
-  private void parseManagedDirectories(
-      boolean disabled, Map<String, ?> managedDirectories) // <String, Sequence<String>>
-      throws EvalException {
-    if (disabled && !managedDirectories.isEmpty()) {
-      throw Starlark.errorf(
-          "managed_directories is disabled. Pass the "
-              + "--noincompatible_disable_managed_directories command line option to temporarily "
-              + "re-enable it. For more information, see "
-              + "https://github.com/bazelbuild/bazel/issues/15463");
-    }
-
-    Map<PathFragment, String> nonNormalizedPathsMap = Maps.newHashMap();
-    for (Map.Entry<String, ?> entry : managedDirectories.entrySet()) {
-      RepositoryName repositoryName = createRepositoryName(entry.getKey());
-      List<PathFragment> paths =
-          getManagedDirectoriesPaths(entry.getValue(), nonNormalizedPathsMap);
-      for (PathFragment dir : paths) {
-        PathFragment floorKey = managedDirectoriesMap.floorKey(dir);
-        if (dir.equals(floorKey)) {
-          throw Starlark.errorf(
-              "managed_directories attribute should not contain multiple"
-                  + " (or duplicate) repository mappings for the same directory ('%s').",
-              nonNormalizedPathsMap.get(dir));
-        }
-        PathFragment ceilingKey = managedDirectoriesMap.ceilingKey(dir);
-        boolean isDescendant = floorKey != null && dir.startsWith(floorKey);
-        if (isDescendant || (ceilingKey != null && ceilingKey.startsWith(dir))) {
-          throw Starlark.errorf(
-              "managed_directories attribute value can not contain nested mappings."
-                  + " '%s' is a descendant of '%s'.",
-              nonNormalizedPathsMap.get(isDescendant ? dir : ceilingKey),
-              nonNormalizedPathsMap.get(isDescendant ? floorKey : dir));
-        }
-        managedDirectoriesMap.put(dir, repositoryName);
-      }
-    }
-  }
-
-  private static RepositoryName createRepositoryName(String key) throws EvalException {
-    if (!key.startsWith("@")) {
-      throw Starlark.errorf(
-          "Cannot parse repository name '%s'. Repository name should start with '@'.", key);
-    }
-    try {
-      return RepositoryName.create(key.substring(1));
-    } catch (LabelSyntaxException e) {
-      throw Starlark.errorf("%s", e);
-    }
-  }
-
-  private static List<PathFragment> getManagedDirectoriesPaths(
-      Object directoriesList, Map<PathFragment, String> nonNormalizedPathsMap)
-      throws EvalException {
-    if (!(directoriesList instanceof Sequence)) {
-      throw Starlark.errorf(
-          "managed_directories attribute value should be of the type attr.string_list_dict(),"
-              + " mapping repository name to the list of managed directories.");
-    }
-    List<PathFragment> result = Lists.newArrayList();
-    for (Object obj : (Sequence) directoriesList) {
-      if (!(obj instanceof String)) {
-        throw Starlark.errorf("Expected managed directory path (as string), but got '%s'.", obj);
-      }
-      String path = ((String) obj).trim();
-      if (path.isEmpty()) {
-        throw Starlark.errorf("Expected managed directory path to be non-empty string.");
-      }
-      PathFragment pathFragment = PathFragment.create(path);
-      if (pathFragment.isAbsolute()) {
-        throw Starlark.errorf(
-            "Expected managed directory path ('%s') to be relative to the workspace root.", path);
-      }
-      if (pathFragment.containsUplevelReferences()) {
-        throw Starlark.errorf(
-            "Expected managed directory path ('%s') to be under the workspace root.", path);
-      }
-      nonNormalizedPathsMap.put(pathFragment, path);
-      result.add(pathFragment);
-    }
-    return result;
-  }
-
-  public Map<PathFragment, RepositoryName> getManagedDirectories() {
-    return managedDirectoriesMap;
   }
 
   private static RepositoryName getRepositoryName(@Nullable Label label) {
diff --git a/src/main/java/com/google/devtools/build/lib/packages/semantics/BuildLanguageOptions.java b/src/main/java/com/google/devtools/build/lib/packages/semantics/BuildLanguageOptions.java
index eb886b4..83946fd 100644
--- a/src/main/java/com/google/devtools/build/lib/packages/semantics/BuildLanguageOptions.java
+++ b/src/main/java/com/google/devtools/build/lib/packages/semantics/BuildLanguageOptions.java
@@ -547,15 +547,6 @@
               + "'cfg = \"exec\"' instead.")
   public boolean incompatibleDisableStarlarkHostTransitions;
 
-  @Option(
-      name = "incompatible_disable_managed_directories",
-      defaultValue = "true",
-      documentationCategory = OptionDocumentationCategory.STARLARK_SEMANTICS,
-      metadataTags = {OptionMetadataTag.INCOMPATIBLE_CHANGE},
-      effectTags = {OptionEffectTag.LOADING_AND_ANALYSIS},
-      help = "If set to true, the workspace(managed_directories=) attribute is disabled.")
-  public boolean incompatibleDisableManagedDirectories;
-
   /**
    * An interner to reduce the number of StarlarkSemantics instances. A single Blaze instance should
    * never accumulate a large number of these and being able to shortcut on object identity makes a
@@ -626,7 +617,6 @@
             .setBool(
                 INCOMPATIBLE_DISABLE_STARLARK_HOST_TRANSITIONS,
                 incompatibleDisableStarlarkHostTransitions)
-            .setBool(INCOMPATIBLE_DISABLE_MANAGE_DIRECTORIES, incompatibleDisableManagedDirectories)
             .build();
     return INTERNER.intern(semantics);
   }
@@ -697,8 +687,6 @@
       "-incompatible_top_level_aspects_require_providers";
   public static final String INCOMPATIBLE_DISABLE_STARLARK_HOST_TRANSITIONS =
       "-incompatible_disable_starlark_host_transitions";
-  public static final String INCOMPATIBLE_DISABLE_MANAGE_DIRECTORIES =
-      "+incompatible_disable_managed_directories";
 
   // non-booleans
   public static final StarlarkSemantics.Key<String> EXPERIMENTAL_BUILTINS_BZL_PATH =
diff --git a/src/main/java/com/google/devtools/build/lib/rules/BUILD b/src/main/java/com/google/devtools/build/lib/rules/BUILD
index 2763e84..5cadf55 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/BUILD
+++ b/src/main/java/com/google/devtools/build/lib/rules/BUILD
@@ -34,7 +34,6 @@
         ":repository/bind",
         ":repository/bind_rule",
         ":repository/local_repository_rule",
-        ":repository/managed_directories_knowledge_impl",
         ":repository/new_local_repository_function",
         ":repository/new_local_repository_rule",
         ":repository/new_repository_file_handler",
@@ -312,20 +311,6 @@
 )
 
 java_library(
-    name = "repository/managed_directories_knowledge_impl",
-    srcs = ["repository/ManagedDirectoriesKnowledgeImpl.java"],
-    deps = [
-        "//src/main/java/com/google/devtools/build/lib/cmdline",
-        "//src/main/java/com/google/devtools/build/lib/packages",
-        "//src/main/java/com/google/devtools/build/lib/skyframe:managed_directories_knowledge",
-        "//src/main/java/com/google/devtools/build/lib/util:abrupt_exit_exception",
-        "//src/main/java/com/google/devtools/build/lib/vfs:pathfragment",
-        "//third_party:guava",
-        "//third_party:jsr305",
-    ],
-)
-
-java_library(
     name = "repository/new_local_repository_function",
     srcs = ["repository/NewLocalRepositoryFunction.java"],
     deps = [
@@ -432,7 +417,6 @@
         "//src/main/java/com/google/devtools/build/lib/repository:repository_failed_event",
         "//src/main/java/com/google/devtools/build/lib/skyframe:action_environment_function",
         "//src/main/java/com/google/devtools/build/lib/skyframe:already_reported_exception",
-        "//src/main/java/com/google/devtools/build/lib/skyframe:managed_directories_knowledge",
         "//src/main/java/com/google/devtools/build/lib/skyframe:package_lookup_function",
         "//src/main/java/com/google/devtools/build/lib/skyframe:package_lookup_value",
         "//src/main/java/com/google/devtools/build/lib/skyframe:precomputed_value",
diff --git a/src/main/java/com/google/devtools/build/lib/rules/repository/ManagedDirectoriesKnowledgeImpl.java b/src/main/java/com/google/devtools/build/lib/rules/repository/ManagedDirectoriesKnowledgeImpl.java
deleted file mode 100644
index fbfd9ba..0000000
--- a/src/main/java/com/google/devtools/build/lib/rules/repository/ManagedDirectoriesKnowledgeImpl.java
+++ /dev/null
@@ -1,105 +0,0 @@
-// Copyright 2019 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 com.google.common.collect.ImmutableSet;
-import com.google.common.collect.ImmutableSortedMap;
-import com.google.common.collect.Maps;
-import com.google.common.collect.Sets;
-import com.google.devtools.build.lib.cmdline.RepositoryName;
-import com.google.devtools.build.lib.packages.WorkspaceFileValue;
-import com.google.devtools.build.lib.skyframe.ManagedDirectoriesKnowledge;
-import com.google.devtools.build.lib.util.AbruptExitException;
-import com.google.devtools.build.lib.vfs.PathFragment;
-import java.util.Comparator;
-import java.util.Map;
-import java.util.Objects;
-import java.util.Set;
-import javax.annotation.Nullable;
-
-/** Managed directories component. {@link ManagedDirectoriesKnowledge} */
-public class ManagedDirectoriesKnowledgeImpl implements ManagedDirectoriesKnowledge {
-  private final ManagedDirectoriesListener listener;
-
-  private ImmutableSortedMap<PathFragment, RepositoryName> dirToRepoMap = ImmutableSortedMap.of();
-  private ImmutableSortedMap<RepositoryName, ImmutableSet<PathFragment>> repoToDirMap =
-      ImmutableSortedMap.of();
-
-  public ManagedDirectoriesKnowledgeImpl(ManagedDirectoriesListener listener) {
-    this.listener = listener;
-  }
-
-  @Override
-  @Nullable
-  public RepositoryName getOwnerRepository(PathFragment relativePathFragment) {
-    Map.Entry<PathFragment, RepositoryName> entry = dirToRepoMap.floorEntry(relativePathFragment);
-    if (entry != null && relativePathFragment.startsWith(entry.getKey())) {
-      return entry.getValue();
-    }
-    return null;
-  }
-
-  @Override
-  public ImmutableSet<PathFragment> getManagedDirectories(RepositoryName repositoryName) {
-    ImmutableSet<PathFragment> pathFragments = repoToDirMap.get(repositoryName);
-    return pathFragments != null ? pathFragments : ImmutableSet.of();
-  }
-
-  @Override
-  public boolean workspaceHeaderReloaded(
-      @Nullable WorkspaceFileValue oldValue, @Nullable WorkspaceFileValue newValue)
-      throws AbruptExitException {
-    if (Objects.equals(oldValue, newValue)) {
-      listener.onManagedDirectoriesRefreshed(repoToDirMap.keySet());
-      return false;
-    }
-    Map<PathFragment, RepositoryName> oldDirToRepoMap = dirToRepoMap;
-    refreshMappings(newValue);
-    if (!Objects.equals(oldDirToRepoMap, dirToRepoMap)) {
-      listener.onManagedDirectoriesRefreshed(repoToDirMap.keySet());
-      return true;
-    }
-    return false;
-  }
-
-  private void refreshMappings(@Nullable WorkspaceFileValue newValue) {
-    if (newValue == null) {
-      dirToRepoMap = ImmutableSortedMap.of();
-      repoToDirMap = ImmutableSortedMap.of();
-      return;
-    }
-
-    dirToRepoMap = ImmutableSortedMap.copyOf(newValue.getManagedDirectories());
-
-    Map<RepositoryName, Set<PathFragment>> reposMap = Maps.newHashMap();
-    for (Map.Entry<PathFragment, RepositoryName> entry : dirToRepoMap.entrySet()) {
-      RepositoryName repositoryName = entry.getValue();
-      reposMap.computeIfAbsent(repositoryName, name -> Sets.newTreeSet()).add(entry.getKey());
-    }
-
-    ImmutableSortedMap.Builder<RepositoryName, ImmutableSet<PathFragment>> reposMapBuilder =
-        new ImmutableSortedMap.Builder<>(Comparator.comparing(RepositoryName::getNameWithAt));
-    for (Map.Entry<RepositoryName, Set<PathFragment>> entry : reposMap.entrySet()) {
-      reposMapBuilder.put(entry.getKey(), ImmutableSet.copyOf(entry.getValue()));
-    }
-    repoToDirMap = reposMapBuilder.buildOrThrow();
-  }
-
-  /** Interface allows {@link BazelRepositoryModule} to react to managed directories refreshes. */
-  public interface ManagedDirectoriesListener {
-    void onManagedDirectoriesRefreshed(Set<RepositoryName> repositoryNames)
-        throws AbruptExitException;
-  }
-}
diff --git a/src/main/java/com/google/devtools/build/lib/rules/repository/RepositoryDelegatorFunction.java b/src/main/java/com/google/devtools/build/lib/rules/repository/RepositoryDelegatorFunction.java
index dc93c9c..00bd817 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/repository/RepositoryDelegatorFunction.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/repository/RepositoryDelegatorFunction.java
@@ -15,15 +15,10 @@
 
 package com.google.devtools.build.lib.rules.repository;
 
-import static com.google.devtools.build.lib.rules.repository.RepositoryDirectoryDirtinessChecker.managedDirectoriesExist;
-
 import com.google.common.annotations.VisibleForTesting;
 import com.google.common.base.Preconditions;
 import com.google.common.collect.ImmutableMap;
-import com.google.common.collect.ImmutableSet;
-import com.google.common.collect.Iterables;
 import com.google.common.collect.Maps;
-import com.google.common.collect.Ordering;
 import com.google.devtools.build.lib.actions.FileValue;
 import com.google.devtools.build.lib.analysis.BlazeDirectories;
 import com.google.devtools.build.lib.bazel.bzlmod.BzlmodRepoRuleValue;
@@ -39,7 +34,6 @@
 import com.google.devtools.build.lib.rules.repository.RepositoryDirectoryValue.NoRepositoryDirectoryValue;
 import com.google.devtools.build.lib.rules.repository.RepositoryFunction.AlreadyReportedRepositoryAccessException;
 import com.google.devtools.build.lib.rules.repository.RepositoryFunction.RepositoryFunctionException;
-import com.google.devtools.build.lib.skyframe.ManagedDirectoriesKnowledge;
 import com.google.devtools.build.lib.skyframe.PrecomputedValue.Precomputed;
 import com.google.devtools.build.lib.util.Fingerprint;
 import com.google.devtools.build.lib.vfs.FileSystemUtils;
@@ -53,15 +47,12 @@
 import com.google.devtools.build.skyframe.SkyValue;
 import java.io.IOException;
 import java.nio.charset.StandardCharsets;
-import java.util.List;
 import java.util.Map;
-import java.util.Objects;
 import java.util.Optional;
 import java.util.Set;
 import java.util.TreeMap;
 import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.function.Supplier;
-import java.util.stream.Collectors;
 import javax.annotation.Nullable;
 
 /**
@@ -110,9 +101,6 @@
   private final AtomicBoolean isFetch;
 
   private final BlazeDirectories directories;
-  // Managed directories mappings, pre-calculated and injected by SequencedSkyframeExecutor
-  // before each command.
-  private final ManagedDirectoriesKnowledge managedDirectoriesKnowledge;
 
   private final ExternalPackageHelper externalPackageHelper;
 
@@ -124,14 +112,12 @@
       AtomicBoolean isFetch,
       Supplier<Map<String, String>> clientEnvironmentSupplier,
       BlazeDirectories directories,
-      ManagedDirectoriesKnowledge managedDirectoriesKnowledge,
       ExternalPackageHelper externalPackageHelper) {
     this.handlers = handlers;
     this.starlarkHandler = starlarkHandler;
     this.isFetch = isFetch;
     this.clientEnvironmentSupplier = clientEnvironmentSupplier;
     this.directories = directories;
-    this.managedDirectoriesKnowledge = managedDirectoriesKnowledge;
     this.externalPackageHelper = externalPackageHelper;
   }
 
@@ -316,27 +302,18 @@
     if (env.valuesMissing()) {
       return null;
     }
-    ImmutableSet<PathFragment> managedDirectories =
-        managedDirectoriesKnowledge.getManagedDirectories(repositoryName);
-    DigestWriter digestWriter =
-        new DigestWriter(
-            directories,
-            repositoryName,
-            rule,
-            managedDirectories);
+    DigestWriter digestWriter = new DigestWriter(directories, repositoryName, rule);
 
     // Local repositories are fetched regardless of the marker file because the operation is
     // generally fast and they do not depend on non-local data, so it does not make much sense to
     // try to cache them from across server instances.
     boolean fetchLocalRepositoryAlways = isFetch.get() && handler.isLocal(rule);
-    if (!fetchLocalRepositoryAlways
-        && managedDirectoriesExist(directories.getWorkspace(), managedDirectories)) {
+    if (!fetchLocalRepositoryAlways) {
       // For the non-local repositories, check if they are already up-to-date:
       // 1) unconditional fetching is not enabled, AND
       // 2) unconditional syncing is not enabled or the rule is not a configure rule, AND
       // 3) repository directory exists, AND
-      // 4) marker file correctly describes the current repository state, AND
-      // 5) managed directories, mapped to the repository, exist
+      // 4) marker file correctly describes the current repository state
       if (!needsConfiguring && doNotFetchUnconditionally && repoRoot.exists()) {
         byte[] markerHash = digestWriter.areRepositoryAndMarkerFileConsistent(handler, env);
         if (env.valuesMissing()) {
@@ -393,11 +370,7 @@
     return RepositoryDirectoryValue.builder()
         .setPath(repoRoot)
         .setFetchingDelayed()
-        .setDigest(
-            new Fingerprint()
-                .addIterableStrings(
-                    Iterables.transform(managedDirectories, PathFragment::getPathString))
-                .digestAndReset())
+        .setDigest(new Fingerprint().digestAndReset())
         .build();
   }
 
@@ -535,28 +508,16 @@
   }
 
   private static class DigestWriter {
-    private static final String MANAGED_DIRECTORIES_MARKER = "$MANAGED";
     private final Path markerPath;
     private final Rule rule;
     private final Map<String, String> markerData;
     private final String ruleKey;
 
-    DigestWriter(
-        BlazeDirectories directories,
-        RepositoryName repositoryName,
-        Rule rule,
-        ImmutableSet<PathFragment> managedDirectories) {
+    DigestWriter(BlazeDirectories directories, RepositoryName repositoryName, Rule rule) {
       ruleKey = computeRuleKey(rule);
       markerPath = getMarkerPath(directories, repositoryName.getName());
       this.rule = rule;
       markerData = Maps.newHashMap();
-
-      List<PathFragment> directoriesList = Ordering.natural().sortedCopy(managedDirectories);
-      String directoriesString =
-          directoriesList.stream()
-              .map(PathFragment::getPathString)
-              .collect(Collectors.joining(" "));
-      markerData.put(MANAGED_DIRECTORIES_MARKER, directoriesString);
     }
 
     byte[] writeMarkerFile() throws RepositoryFunctionException {
@@ -602,10 +563,7 @@
         content = FileSystemUtils.readContent(markerPath, StandardCharsets.UTF_8);
         String markerRuleKey = readMarkerFile(content, markerData);
         boolean verified = false;
-        if (Preconditions.checkNotNull(ruleKey).equals(markerRuleKey)
-            && Objects.equals(
-                markerData.get(MANAGED_DIRECTORIES_MARKER),
-                this.markerData.get(MANAGED_DIRECTORIES_MARKER))) {
+        if (Preconditions.checkNotNull(ruleKey).equals(markerRuleKey)) {
           verified = handler.verifyMarkerData(rule, markerData, env);
           if (env.valuesMissing()) {
             return null;
diff --git a/src/main/java/com/google/devtools/build/lib/rules/repository/RepositoryDirectoryDirtinessChecker.java b/src/main/java/com/google/devtools/build/lib/rules/repository/RepositoryDirectoryDirtinessChecker.java
index c1c70d1..93828ea 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/repository/RepositoryDirectoryDirtinessChecker.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/repository/RepositoryDirectoryDirtinessChecker.java
@@ -16,14 +16,9 @@
 package com.google.devtools.build.lib.rules.repository;
 
 import com.google.common.annotations.VisibleForTesting;
-import com.google.common.collect.ImmutableSet;
-import com.google.devtools.build.lib.cmdline.RepositoryName;
-import com.google.devtools.build.lib.skyframe.ManagedDirectoriesKnowledge;
 import com.google.devtools.build.lib.skyframe.SkyFunctions;
 import com.google.devtools.build.lib.skyframe.SkyValueDirtinessChecker;
 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.SyscallCache;
 import com.google.devtools.build.skyframe.SkyKey;
 import com.google.devtools.build.skyframe.SkyValue;
@@ -32,32 +27,13 @@
 /**
  * A dirtiness checker that:
  *
- * <p>Dirties {@link RepositoryDirectoryValue}s, if either:
- *
- * <ul>
- *   <li>they were produced in a {@code --nofetch} build, so that they are re-created on subsequent
- *       {@code --fetch} builds. The alternative solution would be to reify the value of the flag as
- *       a Skyframe value.
- *   <li>any of their managed directories do not exist. This dirtying allows the user to regenerate
- *       managed directory contents if they become corrupt, although it is unknown if this is useful
- *       in practice. (A more correct option here would be to build support for managed directories
- *       into FilesystemValueChecker, much like {@link
- *       com.google.devtools.build.lib.skyframe.FilesystemValueChecker#getDirtyActionValues}, so
- *       that changes to the contents of a managed directory would automatically invalidate the
- *       generating {@link RepositoryDirectoryValue}.) Changes in which directories are managed are
- *       handled in {@link ManagedDirectoriesKnowledge#workspaceHeaderReloaded}.
- * </ul>
+ * <p>Dirties {@link RepositoryDirectoryValue}s, if they were produced in a {@code --nofetch} build,
+ * so that they are re-created on subsequent {@code --fetch} builds. The alternative solution would
+ * be to reify the value of the flag as a Skyframe value.
  */
 @VisibleForTesting
 public class RepositoryDirectoryDirtinessChecker extends SkyValueDirtinessChecker {
-  private final Path workspaceRoot;
-  private final ManagedDirectoriesKnowledge managedDirectoriesKnowledge;
-
-  public RepositoryDirectoryDirtinessChecker(
-      Path workspaceRoot, ManagedDirectoriesKnowledge managedDirectoriesKnowledge) {
-    this.workspaceRoot = workspaceRoot;
-    this.managedDirectoriesKnowledge = managedDirectoriesKnowledge;
-  }
+  public RepositoryDirectoryDirtinessChecker() {}
 
   @Override
   public boolean applies(SkyKey skyKey) {
@@ -76,7 +52,6 @@
       SkyValue skyValue,
       SyscallCache syscallCache,
       @Nullable TimestampGranularityMonitor tsgm) {
-    RepositoryName repositoryName = (RepositoryName) skyKey.argument();
     RepositoryDirectoryValue repositoryValue = (RepositoryDirectoryValue) skyValue;
 
     if (!repositoryValue.repositoryExists()) {
@@ -86,15 +61,6 @@
       return DirtyResult.dirty();
     }
 
-    if (!managedDirectoriesExist(
-        workspaceRoot, managedDirectoriesKnowledge.getManagedDirectories(repositoryName))) {
-      return DirtyResult.dirty();
-    }
     return DirtyResult.notDirty();
   }
-
-  static boolean managedDirectoriesExist(
-      Path workspaceRoot, ImmutableSet<PathFragment> managedDirectories) {
-    return managedDirectories.stream().allMatch(pf -> workspaceRoot.getRelative(pf).exists());
-  }
 }
diff --git a/src/main/java/com/google/devtools/build/lib/rules/repository/RepositoryFunction.java b/src/main/java/com/google/devtools/build/lib/rules/repository/RepositoryFunction.java
index 10a2f67..8b7d279 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/repository/RepositoryFunction.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/repository/RepositoryFunction.java
@@ -234,7 +234,7 @@
   }
 
   /**
-   * Convert to a @{link com.google.devtools.build.lib.skyframe.FileValue} to a String appropriate
+   * Convert to a {@link com.google.devtools.build.lib.actions.FileValue} to a String appropriate
    * for placing in a repository marker file.
    *
    * @param fileValue The value to convert. It must correspond to a regular file.
@@ -527,22 +527,6 @@
   }
 
   /**
-   * For paths that are under managed directories, we require that the corresponding FileStateValue
-   * or DirectoryListingStateValue is evaluated only after RepositoryDirectoryValue is evaluated.
-   * This way we guarantee that the repository rule is given a chance to update the managed
-   * directory before the files under the managed directory are accessed.
-   *
-   * <p>We do not need to require anything else (comparing to dependencies required for external
-   * repositories files), as overriding external repositories with managed directories is currently
-   * forbidden; also, we do not have do perform special checks for local_repository targets, since
-   * such targets cannot have managed directories by definition.
-   */
-  public static void addManagedDirectoryDependencies(RepositoryName repositoryName, Environment env)
-      throws InterruptedException {
-    env.getValue(RepositoryDirectoryValue.key(repositoryName));
-  }
-
-  /**
    * Sets up a mapping of environment variables to use.
    */
   public void setClientEnvironment(Map<String, String> clientEnvironment) {
diff --git a/src/main/java/com/google/devtools/build/lib/skyframe/BUILD b/src/main/java/com/google/devtools/build/lib/skyframe/BUILD
index 0b5d910..03399b5 100644
--- a/src/main/java/com/google/devtools/build/lib/skyframe/BUILD
+++ b/src/main/java/com/google/devtools/build/lib/skyframe/BUILD
@@ -141,7 +141,6 @@
         ":incremental_artifact_conflict_finder",
         ":loading_phase_started_event",
         ":local_repository_lookup_value",
-        ":managed_directories_knowledge",
         ":map_as_package_roots",
         ":metadata_consumer_for_metrics",
         ":output_store",
@@ -323,7 +322,6 @@
         "//src/main/java/com/google/devtools/build/lib/util:abrupt_exit_exception",
         "//src/main/java/com/google/devtools/build/lib/util:crash_failure_details",
         "//src/main/java/com/google/devtools/build/lib/util:detailed_exit_code",
-        "//src/main/java/com/google/devtools/build/lib/util:exit_code",
         "//src/main/java/com/google/devtools/build/lib/util:resource_usage",
         "//src/main/java/com/google/devtools/build/lib/util/io",
         "//src/main/java/com/google/devtools/build/lib/vfs",
@@ -1527,19 +1525,6 @@
 )
 
 java_library(
-    name = "managed_directories_knowledge",
-    srcs = ["ManagedDirectoriesKnowledge.java"],
-    deps = [
-        "//src/main/java/com/google/devtools/build/lib/cmdline",
-        "//src/main/java/com/google/devtools/build/lib/packages",
-        "//src/main/java/com/google/devtools/build/lib/util:abrupt_exit_exception",
-        "//src/main/java/com/google/devtools/build/lib/vfs:pathfragment",
-        "//third_party:guava",
-        "//third_party:jsr305",
-    ],
-)
-
-java_library(
     name = "map_as_package_roots",
     srcs = ["MapAsPackageRoots.java"],
     deps = [
@@ -2257,7 +2242,6 @@
     name = "skyframe_executor_repository_helpers_holder",
     srcs = ["SkyframeExecutorRepositoryHelpersHolder.java"],
     deps = [
-        ":managed_directories_knowledge",
         "//src/main/java/com/google/devtools/build/lib/rules:repository/repository_function",
         "//third_party:auto_value",
     ],
diff --git a/src/main/java/com/google/devtools/build/lib/skyframe/DirectoryListingStateFunction.java b/src/main/java/com/google/devtools/build/lib/skyframe/DirectoryListingStateFunction.java
index 876ab3f..e2f1216 100644
--- a/src/main/java/com/google/devtools/build/lib/skyframe/DirectoryListingStateFunction.java
+++ b/src/main/java/com/google/devtools/build/lib/skyframe/DirectoryListingStateFunction.java
@@ -55,8 +55,7 @@
       if (env.valuesMissing()) {
         return null;
       }
-      if (fileType == FileType.EXTERNAL_REPO
-          || fileType == FileType.EXTERNAL_IN_MANAGED_DIRECTORY) {
+      if (fileType == FileType.EXTERNAL_REPO) {
         // Do not use syscallCache as files under repositories get generated during the build,
         // while syscallCache is used independently from Skyframe and generally assumes
         // the file system is frozen at the beginning of the build command.
diff --git a/src/main/java/com/google/devtools/build/lib/skyframe/DirtinessCheckerUtils.java b/src/main/java/com/google/devtools/build/lib/skyframe/DirtinessCheckerUtils.java
index 3d34f54..080598a 100644
--- a/src/main/java/com/google/devtools/build/lib/skyframe/DirtinessCheckerUtils.java
+++ b/src/main/java/com/google/devtools/build/lib/skyframe/DirtinessCheckerUtils.java
@@ -20,7 +20,6 @@
 import com.google.common.base.Preconditions;
 import com.google.common.collect.ImmutableList;
 import com.google.devtools.build.lib.actions.FileStateValue;
-import com.google.devtools.build.lib.bugreport.BugReport;
 import com.google.devtools.build.lib.skyframe.ExternalFilesHelper.FileType;
 import com.google.devtools.build.lib.util.io.TimestampGranularityMonitor;
 import com.google.devtools.build.lib.vfs.Root;
@@ -100,12 +99,9 @@
 
   static final class MissingDiffDirtinessChecker extends BasicFilesystemDirtinessChecker {
     private final Set<Root> missingDiffPackageRoots;
-    private final ExternalFilesHelper externalFilesHelper;
 
-    MissingDiffDirtinessChecker(
-        Set<Root> missingDiffPackageRoots, ExternalFilesHelper externalFilesHelper) {
+    MissingDiffDirtinessChecker(Set<Root> missingDiffPackageRoots) {
       this.missingDiffPackageRoots = missingDiffPackageRoots;
-      this.externalFilesHelper = externalFilesHelper;
     }
 
     @Override
@@ -113,26 +109,6 @@
       return super.applies(key)
           && missingDiffPackageRoots.contains(((RootedPath) key.argument()).getRoot());
     }
-
-    @Override
-    public DirtyResult check(
-        SkyKey key,
-        @Nullable SkyValue oldValue,
-        SyscallCache syscallCache,
-        @Nullable TimestampGranularityMonitor tsgm) {
-      FileType fileType = externalFilesHelper.getAndNoteFileType((RootedPath) key.argument());
-      if (fileType != FileType.INTERNAL) {
-        if (fileType != FileType.EXTERNAL_IN_MANAGED_DIRECTORY) {
-          BugReport.sendBugReport(
-              "File %s had unexpected type %s under one of package roots %s",
-              key, fileType, missingDiffPackageRoots);
-        }
-        DirtyResult result = super.check(key, oldValue, SyscallCache.NO_CACHE, tsgm);
-        // Don't populate Skyframe with new value if it might change.
-        return result.isDirty() ? DirtyResult.dirty() : result;
-      }
-      return super.check(key, oldValue, syscallCache, tsgm);
-    }
   }
 
   /**
@@ -194,7 +170,6 @@
         case EXTERNAL:
         case BUNDLED:
           return true;
-        case EXTERNAL_IN_MANAGED_DIRECTORY:
         case EXTERNAL_REPO:
         case OUTPUT:
           return false;
diff --git a/src/main/java/com/google/devtools/build/lib/skyframe/ExternalFilesHelper.java b/src/main/java/com/google/devtools/build/lib/skyframe/ExternalFilesHelper.java
index a4aebf2..ca8293f 100644
--- a/src/main/java/com/google/devtools/build/lib/skyframe/ExternalFilesHelper.java
+++ b/src/main/java/com/google/devtools/build/lib/skyframe/ExternalFilesHelper.java
@@ -51,62 +51,40 @@
   private boolean tooManyNonOutputExternalFilesSeen = false;
   private boolean anyFilesInExternalReposSeen = false;
 
-  // This is a set of external files that are not in managed directories or
-  // external repositories.
+  // This is a set of external files that are not in external repositories.
   private Set<RootedPath> nonOutputExternalFilesSeen = Sets.newConcurrentHashSet();
-  private final ManagedDirectoriesKnowledge managedDirectoriesKnowledge;
 
   private ExternalFilesHelper(
       AtomicReference<PathPackageLocator> pkgLocator,
       ExternalFileAction externalFileAction,
       BlazeDirectories directories,
-      int maxNumExternalFilesToLog,
-      ManagedDirectoriesKnowledge managedDirectoriesKnowledge) {
+      int maxNumExternalFilesToLog) {
     this.pkgLocator = pkgLocator;
     this.externalFileAction = externalFileAction;
     this.directories = directories;
     this.maxNumExternalFilesToLog = maxNumExternalFilesToLog;
-    this.managedDirectoriesKnowledge = managedDirectoriesKnowledge;
   }
 
   public static ExternalFilesHelper create(
       AtomicReference<PathPackageLocator> pkgLocator,
       ExternalFileAction externalFileAction,
-      BlazeDirectories directories,
-      ManagedDirectoriesKnowledge managedDirectoriesKnowledge) {
+      BlazeDirectories directories) {
     return TestType.isInTest()
-        ? createForTesting(pkgLocator, externalFileAction, directories, managedDirectoriesKnowledge)
+        ? createForTesting(pkgLocator, externalFileAction, directories)
         : new ExternalFilesHelper(
-            pkgLocator,
-            externalFileAction,
-            directories,
-            /*maxNumExternalFilesToLog=*/ 100,
-            managedDirectoriesKnowledge);
+            pkgLocator, externalFileAction, directories, /*maxNumExternalFilesToLog=*/ 100);
   }
 
   public static ExternalFilesHelper createForTesting(
       AtomicReference<PathPackageLocator> pkgLocator,
       ExternalFileAction externalFileAction,
       BlazeDirectories directories) {
-    return createForTesting(
-        pkgLocator,
-        externalFileAction,
-        directories,
-        ManagedDirectoriesKnowledge.NO_MANAGED_DIRECTORIES);
-  }
-
-  private static ExternalFilesHelper createForTesting(
-      AtomicReference<PathPackageLocator> pkgLocator,
-      ExternalFileAction externalFileAction,
-      BlazeDirectories directories,
-      ManagedDirectoriesKnowledge managedDirectoriesKnowledge) {
     return new ExternalFilesHelper(
         pkgLocator,
         externalFileAction,
         directories,
         // These log lines are mostly spam during unit and integration tests.
-        /*maxNumExternalFilesToLog=*/ 0,
-        managedDirectoriesKnowledge);
+        /*maxNumExternalFilesToLog=*/ 0);
   }
 
 
@@ -144,8 +122,8 @@
     INTERNAL,
 
     /**
-     * A non {@link #EXTERNAL_REPO} or {@link #EXTERNAL_IN_MANAGED_DIRECTORY} path outside the
-     * package roots about which we may make no other assumptions.
+     * A non {@link #EXTERNAL_REPO} path outside the package roots about which we may make no other
+     * assumptions.
      */
     EXTERNAL,
 
@@ -175,17 +153,6 @@
      * RepositoryDirectoryValue is computed.
      */
     EXTERNAL_REPO,
-
-    /**
-     * A path is under one of the managed directories. Managed directories are user-owned
-     * directories, which can be incrementally updated by repository rules, so that the updated
-     * files are visible for the actions in the same build.
-     *
-     * <p>Every such path under the managed directory is generated or updated by the execution of
-     * the corresponding repository rule, so these paths should not be cached by Skyframe before the
-     * RepositoryDirectoryValue is computed. {@link ManagedDirectoriesKnowledge}
-     */
-    EXTERNAL_IN_MANAGED_DIRECTORY,
   }
 
   /**
@@ -232,11 +199,7 @@
 
   ExternalFilesHelper cloneWithFreshExternalFilesKnowledge() {
     return new ExternalFilesHelper(
-        pkgLocator,
-        externalFileAction,
-        directories,
-        maxNumExternalFilesToLog,
-        managedDirectoriesKnowledge);
+        pkgLocator, externalFileAction, directories, maxNumExternalFilesToLog);
   }
 
   public FileType getAndNoteFileType(RootedPath rootedPath) {
@@ -244,12 +207,6 @@
   }
 
   private Pair<FileType, RepositoryName> getFileTypeAndRepository(RootedPath rootedPath) {
-    RepositoryName repositoryName =
-        managedDirectoriesKnowledge.getOwnerRepository(rootedPath.getRootRelativePath());
-    if (repositoryName != null) {
-      anyFilesInExternalReposSeen = true;
-      return Pair.of(FileType.EXTERNAL_IN_MANAGED_DIRECTORY, repositoryName);
-    }
     FileType fileType = detectFileType(rootedPath);
     if (FileType.EXTERNAL == fileType) {
       if (nonOutputExternalFilesSeen.size() >= MAX_EXTERNAL_FILES_TO_TRACK) {
@@ -309,12 +266,6 @@
 
     FileType fileType = Preconditions.checkNotNull(pair.getFirst());
     switch (fileType) {
-      case EXTERNAL_IN_MANAGED_DIRECTORY:
-        Preconditions.checkState(
-            externalFileAction == ExternalFileAction.DEPEND_ON_EXTERNAL_PKG_FOR_EXTERNAL_REPO_PATHS,
-            externalFileAction);
-        RepositoryFunction.addManagedDirectoryDependencies(pair.getSecond(), env);
-        break;
       case BUNDLED:
       case INTERNAL:
         break;
diff --git a/src/main/java/com/google/devtools/build/lib/skyframe/FileStateFunction.java b/src/main/java/com/google/devtools/build/lib/skyframe/FileStateFunction.java
index cba69ee..8b534e2 100644
--- a/src/main/java/com/google/devtools/build/lib/skyframe/FileStateFunction.java
+++ b/src/main/java/com/google/devtools/build/lib/skyframe/FileStateFunction.java
@@ -60,8 +60,7 @@
       if (env.valuesMissing()) {
         return null;
       }
-      if (fileType == FileType.EXTERNAL_REPO
-          || fileType == FileType.EXTERNAL_IN_MANAGED_DIRECTORY) {
+      if (fileType == FileType.EXTERNAL_REPO) {
         // do not use syscallCache as files under repositories get generated during the build
         return FileStateValue.create(rootedPath, SyscallCache.NO_CACHE, tsgm.get());
       }
diff --git a/src/main/java/com/google/devtools/build/lib/skyframe/ManagedDirectoriesKnowledge.java b/src/main/java/com/google/devtools/build/lib/skyframe/ManagedDirectoriesKnowledge.java
deleted file mode 100644
index 6ec3b0b..0000000
--- a/src/main/java/com/google/devtools/build/lib/skyframe/ManagedDirectoriesKnowledge.java
+++ /dev/null
@@ -1,77 +0,0 @@
-// Copyright 2019 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.RepositoryName;
-import com.google.devtools.build.lib.packages.WorkspaceFileValue;
-import com.google.devtools.build.lib.util.AbruptExitException;
-import com.google.devtools.build.lib.vfs.PathFragment;
-import javax.annotation.Nullable;
-
-/**
- * Managed directories are user-owned directories, which can be incrementally updated by repository
- * rules, so that the updated files are visible for the actions in the same build.
- *
- * <p>File and directory nodes inside managed directories depend on the relevant {@link
- * com.google.devtools.build.lib.rules.repository.RepositoryDirectoryValue} node, so that they are
- * invalidated if the repository definition changes and recomputed based on the contents written by
- * the repository rule.
- *
- * <p>The repository rule will also be re-run if any of the directories it manages is entirely
- * missing. This allows a user to fairly cleanly regenerate managed directories. Whether this is an
- * actually used feature is unknown to the Bazel developers.
- */
-public interface ManagedDirectoriesKnowledge {
-  ManagedDirectoriesKnowledge NO_MANAGED_DIRECTORIES =
-      new ManagedDirectoriesKnowledge() {
-        @Override
-        public boolean workspaceHeaderReloaded(
-            @Nullable WorkspaceFileValue oldValue, @Nullable WorkspaceFileValue newValue) {
-          return false;
-        }
-
-        @Nullable
-        @Override
-        public RepositoryName getOwnerRepository(PathFragment relativePathFragment) {
-          return null;
-        }
-
-        @Override
-        public ImmutableSet<PathFragment> getManagedDirectories(RepositoryName repositoryName) {
-          return ImmutableSet.of();
-        }
-      };
-
-  /**
-   * Returns true if the multi-mapping of repository -> {managed directory} changes. Such changes
-   * trigger a full wipe of the Skyframe graph, similar to a --package_path flag change.
-   */
-  boolean workspaceHeaderReloaded(
-      @Nullable WorkspaceFileValue oldValue, @Nullable WorkspaceFileValue newValue)
-      throws AbruptExitException;
-
-  /**
-   * Returns the owning repository for the incrementally updated path, or null.
-   *
-   * @param relativePathFragment path to check, relative to workspace root
-   * @return RepositoryName or null if there is no owning repository
-   */
-  @Nullable
-  RepositoryName getOwnerRepository(PathFragment relativePathFragment);
-
-  /** Returns managed directories for the passed repository. */
-  ImmutableSet<PathFragment> getManagedDirectories(RepositoryName repositoryName);
-}
diff --git a/src/main/java/com/google/devtools/build/lib/skyframe/SequencedSkyframeExecutor.java b/src/main/java/com/google/devtools/build/lib/skyframe/SequencedSkyframeExecutor.java
index 4d33299..5702185 100644
--- a/src/main/java/com/google/devtools/build/lib/skyframe/SequencedSkyframeExecutor.java
+++ b/src/main/java/com/google/devtools/build/lib/skyframe/SequencedSkyframeExecutor.java
@@ -31,7 +31,6 @@
 import com.google.common.flogger.GoogleLogger;
 import com.google.devtools.build.lib.actions.ActionKeyContext;
 import com.google.devtools.build.lib.actions.CommandLineExpansionException;
-import com.google.devtools.build.lib.actions.FileStateType;
 import com.google.devtools.build.lib.actions.FileStateValue;
 import com.google.devtools.build.lib.actions.FileValue;
 import com.google.devtools.build.lib.analysis.AspectValue;
@@ -44,7 +43,6 @@
 import com.google.devtools.build.lib.bazel.repository.RepositoryOptions;
 import com.google.devtools.build.lib.bugreport.BugReporter;
 import com.google.devtools.build.lib.buildtool.BuildRequestOptions;
-import com.google.devtools.build.lib.cmdline.LabelConstants;
 import com.google.devtools.build.lib.cmdline.PackageIdentifier;
 import com.google.devtools.build.lib.concurrent.Uninterruptibles;
 import com.google.devtools.build.lib.events.Event;
@@ -58,17 +56,12 @@
 import com.google.devtools.build.lib.packages.PackageFactory;
 import com.google.devtools.build.lib.packages.Rule;
 import com.google.devtools.build.lib.packages.RuleClass;
-import com.google.devtools.build.lib.packages.WorkspaceFileValue;
-import com.google.devtools.build.lib.packages.WorkspaceFileValue.WorkspaceFileKey;
 import com.google.devtools.build.lib.pkgcache.PackageOptions;
 import com.google.devtools.build.lib.pkgcache.PathPackageLocator;
 import com.google.devtools.build.lib.profiler.Profiler;
 import com.google.devtools.build.lib.profiler.ProfilerTask;
 import com.google.devtools.build.lib.profiler.SilentCloseable;
 import com.google.devtools.build.lib.repository.ExternalPackageHelper;
-import com.google.devtools.build.lib.server.FailureDetails;
-import com.google.devtools.build.lib.server.FailureDetails.FailureDetail;
-import com.google.devtools.build.lib.server.FailureDetails.Workspaces;
 import com.google.devtools.build.lib.skyframe.AspectKeyCreator.AspectKey;
 import com.google.devtools.build.lib.skyframe.DiffAwarenessManager.ProcessableModifiedFileSet;
 import com.google.devtools.build.lib.skyframe.DirtinessCheckerUtils.BasicFilesystemDirtinessChecker;
@@ -83,8 +76,6 @@
 import com.google.devtools.build.lib.skyframe.PackageLookupFunction.CrossRepositoryLabelViolationStrategy;
 import com.google.devtools.build.lib.skyframe.rewinding.RewindableGraphInconsistencyReceiver;
 import com.google.devtools.build.lib.util.AbruptExitException;
-import com.google.devtools.build.lib.util.DetailedExitCode;
-import com.google.devtools.build.lib.util.ExitCode;
 import com.google.devtools.build.lib.util.Pair;
 import com.google.devtools.build.lib.util.ResourceUsage;
 import com.google.devtools.build.lib.util.io.TimestampGranularityMonitor;
@@ -207,9 +198,6 @@
         /*shouldUnblockCpuWorkWhenFetchingDeps=*/ false,
         new PackageProgressReceiver(),
         new ConfiguredTargetProgressReceiver(),
-        repositoryHelpersHolder == null
-            ? null
-            : repositoryHelpersHolder.managedDirectoriesKnowledge(),
         skyKeyStateReceiver,
         bugReporter);
     this.diffAwarenessManager = new DiffAwarenessManager(diffAwarenessFactories);
@@ -391,15 +379,6 @@
     modifiedFiles.set(0);
     numSourceFilesCheckedBecauseOfMissingDiffs = 0;
 
-    // Read the WORKSPACE file header, but only invalidate if tracking incremental state. Otherwise,
-    // this command started with a fresh graph already, and attempting to invalidate edgeless nodes
-    // results in a crash.
-    boolean managedDirectoriesChanged =
-        repositoryHelpersHolder != null && refreshWorkspaceHeader(eventHandler);
-    if (managedDirectoriesChanged && trackIncrementalState) {
-      invalidateCachedWorkspacePathsStates();
-    }
-
     WorkspaceInfoFromDiff workspaceInfo = null;
     Map<Root, DiffAwarenessManager.ProcessableModifiedFileSet> modifiedFilesByPathEntry =
         Maps.newHashMap();
@@ -422,8 +401,7 @@
     }
     BuildRequestOptions buildRequestOptions = options.getOptions(BuildRequestOptions.class);
     int fsvcThreads = buildRequestOptions == null ? 200 : buildRequestOptions.fsvcThreads;
-    handleDiffsWithCompleteDiffInformation(
-        tsgm, modifiedFilesByPathEntry, managedDirectoriesChanged, fsvcThreads);
+    handleDiffsWithCompleteDiffInformation(tsgm, modifiedFilesByPathEntry, fsvcThreads);
     RepositoryOptions repoOptions = options.getOptions(RepositoryOptions.class);
     handleDiffsWithMissingDiffInformation(
         eventHandler,
@@ -431,42 +409,11 @@
         pathEntriesWithoutDiffInformation,
         options.getOptions(PackageOptions.class).checkOutputFiles,
         repoOptions == null || repoOptions.checkExternalRepositoryFiles,
-        managedDirectoriesChanged,
         fsvcThreads);
     handleClientEnvironmentChanges();
     return workspaceInfo;
   }
 
-  /**
-   * Skyframe caches the states of files (FileStateValue) and directory listings
-   * (DirectoryListingStateValue). In the case when the files/directories are under a managed
-   * directory or inside an external repository, evaluation of file/directory listing states
-   * requires that RepositoryDirectoryValue of the owning external repository is evaluated
-   * beforehand. (So that the repository rule generates the files.) So there is a dependency on
-   * RepositoryDirectoryValue for files under managed directories and external repositories. This
-   * dependency is recorded by Skyframe.
-   *
-   * <p>From the other side, by default Skyframe injects the new values of changed files already at
-   * the stage of checking what files have changed. Only values without any dependencies can be
-   * injected into Skyframe.
-   *
-   * <p>When the values of managed directories change, whether a file is under a managed directory
-   * can change. This implies that corresponding file/directory listing states gain the dependency
-   * (RepositoryDirectoryValue) or they lose this dependency. In both cases, we should prevent
-   * Skyframe from injecting those new values of file/directory listing states at the stage of
-   * checking changed files, because the files have not been generated yet.
-   *
-   * <p>The selected approach is to invalidate PACKAGE_LOCATOR_DEPENDENT_VALUES, which includes
-   * invalidating all cached file/directory listing state values. Additionally, no new
-   * FileStateValues and DirectoryStateValues should be injected.
-   */
-  private void invalidateCachedWorkspacePathsStates() {
-    logger.atInfo().log(
-        "Invalidating cached packages and paths states"
-            + " because managed directories configuration has changed.");
-    invalidate(SkyFunctionName.functionIsIn(PACKAGE_LOCATOR_DEPENDENT_VALUES));
-  }
-
   /** Invalidates entries in the client environment. */
   private void handleClientEnvironmentChanges() {
     // Remove deleted client environmental variables.
@@ -496,7 +443,6 @@
   private void handleDiffsWithCompleteDiffInformation(
       TimestampGranularityMonitor tsgm,
       Map<Root, ProcessableModifiedFileSet> modifiedFilesByPathEntry,
-      boolean managedDirectoriesChanged,
       int fsvcThreads)
       throws InterruptedException, AbruptExitException {
     for (Root pathEntry : ImmutableSet.copyOf(modifiedFilesByPathEntry.keySet())) {
@@ -507,8 +453,7 @@
       handleChangedFiles(
           ImmutableList.of(pathEntry),
           getDiff(tsgm, modifiedFileSet, pathEntry, fsvcThreads),
-          /*numSourceFilesCheckedIfDiffWasMissing=*/ 0,
-          managedDirectoriesChanged);
+          /*numSourceFilesCheckedIfDiffWasMissing=*/ 0);
       processableModifiedFileSet.markProcessed();
     }
   }
@@ -523,7 +468,6 @@
       Set<Pair<Root, ProcessableModifiedFileSet>> pathEntriesWithoutDiffInformation,
       boolean checkOutputFiles,
       boolean checkExternalRepositoryFiles,
-      boolean managedDirectoriesChanged,
       int fsvcThreads)
       throws InterruptedException {
 
@@ -571,8 +515,7 @@
             Iterables.concat(
                 dirtinessCheckers,
                 ImmutableList.of(
-                    new MissingDiffDirtinessChecker(
-                        diffPackageRootsUnderWhichToCheck, tmpExternalFilesHelper)));
+                    new MissingDiffDirtinessChecker(diffPackageRootsUnderWhichToCheck)));
       }
       if (checkExternalRepositoryFiles && repositoryHelpersHolder != null) {
         dirtinessCheckers =
@@ -581,8 +524,7 @@
                 ImmutableList.of(repositoryHelpersHolder.repositoryDirectoryDirtinessChecker()));
       }
       if (checkExternalRepositoryFiles) {
-        fileTypesToCheck =
-            EnumSet.of(FileType.EXTERNAL_REPO, FileType.EXTERNAL_IN_MANAGED_DIRECTORY);
+        fileTypesToCheck = EnumSet.of(FileType.EXTERNAL_REPO);
       }
       if (externalFilesKnowledge.tooManyNonOutputExternalFilesSeen
           || !externalFilesKnowledge.nonOutputExternalFilesSeen.isEmpty()) {
@@ -614,8 +556,7 @@
       handleChangedFiles(
           diffPackageRootsUnderWhichToCheck,
           batchDirtyResult,
-          /*numSourceFilesCheckedIfDiffWasMissing=*/ batchDirtyResult.getNumKeysChecked(),
-          managedDirectoriesChanged);
+          /*numSourceFilesCheckedIfDiffWasMissing=*/ batchDirtyResult.getNumKeysChecked());
       // We use the knowledge gained during the graph scan that just completed. Otherwise, naively,
       // once an external file gets into the Skyframe graph, we'll overly-conservatively always
       // think the graph needs to be scanned.
@@ -648,10 +589,7 @@
                 new ExternalDirtinessChecker(externalFilesHelper, EnumSet.of(FileType.EXTERNAL)));
       }
       handleChangedFiles(
-          ImmutableList.of(),
-          batchDirtyResult,
-          batchDirtyResult.getNumKeysChecked(),
-          /*managedDirectoriesChanged=*/ false);
+          ImmutableList.of(), batchDirtyResult, batchDirtyResult.getNumKeysChecked());
     }
     for (Pair<Root, DiffAwarenessManager.ProcessableModifiedFileSet> pair :
         pathEntriesWithoutDiffInformation) {
@@ -662,21 +600,11 @@
   private void handleChangedFiles(
       Collection<Root> diffPackageRootsUnderWhichToCheck,
       Differencer.Diff diff,
-      int numSourceFilesCheckedIfDiffWasMissing,
-      boolean managedDirectoriesChanged) {
+      int numSourceFilesCheckedIfDiffWasMissing) {
     int numWithoutNewValues = diff.changedKeysWithoutNewValues().size();
     Iterable<SkyKey> keysToBeChangedLaterInThisBuild = diff.changedKeysWithoutNewValues();
     Map<SkyKey, SkyValue> changedKeysWithNewValues = diff.changedKeysWithNewValues();
 
-    // If managed directories settings changed, do not inject any new values, just invalidate
-    // keys of the changed values. {@link #invalidateCachedWorkspacePathsStates()}
-    if (managedDirectoriesChanged) {
-      numWithoutNewValues += changedKeysWithNewValues.size();
-      keysToBeChangedLaterInThisBuild =
-          Iterables.concat(keysToBeChangedLaterInThisBuild, changedKeysWithNewValues.keySet());
-      changedKeysWithNewValues = ImmutableMap.of();
-    }
-
     logDiffInfo(
         diffPackageRootsUnderWhichToCheck,
         keysToBeChangedLaterInThisBuild,
@@ -1030,86 +958,6 @@
     }
   }
 
-  /**
-   * Calculate the new value of the WORKSPACE file header (WorkspaceFileValue with the index = 0),
-   * and call the listener, if the value has changed. Needed for incremental update of user-owned
-   * directories by repository rules.
-   */
-  private boolean refreshWorkspaceHeader(ExtendedEventHandler eventHandler)
-      throws InterruptedException, AbruptExitException {
-    Root workspaceRoot = Root.fromPath(directories.getWorkspace());
-    RootedPath workspacePath =
-        RootedPath.toRootedPath(workspaceRoot, LabelConstants.WORKSPACE_FILE_NAME);
-    WorkspaceFileKey workspaceFileKey = WorkspaceFileValue.key(workspacePath);
-
-    WorkspaceFileValue oldValue =
-        (WorkspaceFileValue) memoizingEvaluator.getExistingValue(workspaceFileKey);
-    FileStateValue newFileStateValue = maybeInvalidateWorkspaceFileStateValue(workspacePath);
-    WorkspaceFileValue newValue =
-        (WorkspaceFileValue) evaluateSingleValue(workspaceFileKey, eventHandler);
-    if (newValue != null
-        && !newValue.getManagedDirectories().isEmpty()
-        && FileStateType.SYMLINK.equals(newFileStateValue.getType())) {
-      throw new AbruptExitException(
-          DetailedExitCode.of(
-              ExitCode.PARSING_FAILURE,
-              FailureDetail.newBuilder()
-                  .setMessage(
-                      "WORKSPACE file can not be a symlink if incrementally updated directories"
-                          + " are used.")
-                  .setWorkspaces(
-                      Workspaces.newBuilder()
-                          .setCode(
-                              FailureDetails.Workspaces.Code
-                                  .ILLEGAL_WORKSPACE_FILE_SYMLINK_WITH_MANAGED_DIRECTORIES))
-                  .build()));
-    }
-    return repositoryHelpersHolder
-        .managedDirectoriesKnowledge()
-        .workspaceHeaderReloaded(oldValue, newValue);
-  }
-
-  // We only check the FileStateValue of the WORKSPACE file; we do not support the case
-  // when the WORKSPACE file is a symlink.
-  private FileStateValue maybeInvalidateWorkspaceFileStateValue(RootedPath workspacePath)
-      throws InterruptedException, AbruptExitException {
-    SkyKey workspaceFileStateKey = FileStateValue.key(workspacePath);
-    SkyValue oldWorkspaceFileState = memoizingEvaluator.getExistingValue(workspaceFileStateKey);
-    FileStateValue newWorkspaceFileState;
-    try {
-      newWorkspaceFileState =
-          FileStateValue.create(workspacePath, perCommandSyscallCache, tsgm.get());
-    } catch (IOException e) {
-      throw new AbruptExitException(
-          DetailedExitCode.of(
-              ExitCode.PARSING_FAILURE,
-              FailureDetail.newBuilder()
-                  .setMessage("Can not read WORKSPACE file.")
-                  .setWorkspaces(
-                      Workspaces.newBuilder()
-                          .setCode(
-                              FailureDetails.Workspaces.Code
-                                  .WORKSPACE_FILE_READ_FAILURE_WITH_MANAGED_DIRECTORIES))
-                  .build()),
-          e);
-    }
-    if (oldWorkspaceFileState != null && !oldWorkspaceFileState.equals(newWorkspaceFileState)) {
-      recordingDiffer.invalidate(ImmutableSet.of(workspaceFileStateKey));
-    }
-    return newWorkspaceFileState;
-  }
-
-  private SkyValue evaluateSingleValue(SkyKey key, ExtendedEventHandler eventHandler)
-      throws InterruptedException {
-    EvaluationContext evaluationContext =
-        newEvaluationContextBuilder()
-            .setKeepGoing(false)
-            .setNumThreads(DEFAULT_THREAD_COUNT)
-            .setEventHandler(eventHandler)
-            .build();
-    return memoizingEvaluator.evaluate(ImmutableSet.of(key), evaluationContext).get(key);
-  }
-
   public static Builder builder() {
     return new Builder();
   }
diff --git a/src/main/java/com/google/devtools/build/lib/skyframe/SkyframeExecutor.java b/src/main/java/com/google/devtools/build/lib/skyframe/SkyframeExecutor.java
index 7ce5c0a..9285981 100644
--- a/src/main/java/com/google/devtools/build/lib/skyframe/SkyframeExecutor.java
+++ b/src/main/java/com/google/devtools/build/lib/skyframe/SkyframeExecutor.java
@@ -418,7 +418,6 @@
       boolean shouldUnblockCpuWorkWhenFetchingDeps,
       @Nullable PackageProgressReceiver packageProgress,
       @Nullable ConfiguredTargetProgressReceiver configuredTargetProgress,
-      @Nullable ManagedDirectoriesKnowledge managedDirectoriesKnowledge,
       SkyKeyStateReceiver skyKeyStateReceiver,
       BugReporter bugReporter) {
     // Strictly speaking, these arguments are not required for initialization, but all current
@@ -462,13 +461,7 @@
     this.skyframeBuildView =
         new SkyframeBuildView(artifactFactory, this, ruleClassProvider, actionKeyContext);
     this.externalFilesHelper =
-        ExternalFilesHelper.create(
-            pkgLocator,
-            externalFileAction,
-            directories,
-            managedDirectoriesKnowledge != null
-                ? managedDirectoriesKnowledge
-                : ManagedDirectoriesKnowledge.NO_MANAGED_DIRECTORIES);
+        ExternalFilesHelper.create(pkgLocator, externalFileAction, directories);
     this.crossRepositoryLabelViolationStrategy = crossRepositoryLabelViolationStrategy;
     this.buildFilesByPriority = buildFilesByPriority;
     this.externalPackageHelper = externalPackageHelper;
diff --git a/src/main/java/com/google/devtools/build/lib/skyframe/SkyframeExecutorRepositoryHelpersHolder.java b/src/main/java/com/google/devtools/build/lib/skyframe/SkyframeExecutorRepositoryHelpersHolder.java
index a858478..f61f722 100644
--- a/src/main/java/com/google/devtools/build/lib/skyframe/SkyframeExecutorRepositoryHelpersHolder.java
+++ b/src/main/java/com/google/devtools/build/lib/skyframe/SkyframeExecutorRepositoryHelpersHolder.java
@@ -20,14 +20,11 @@
 /** Provides repository-related objects for use by {@link SequencedSkyframeExecutor}. */
 @AutoValue
 public abstract class SkyframeExecutorRepositoryHelpersHolder {
-  public abstract ManagedDirectoriesKnowledge managedDirectoriesKnowledge();
-
   public abstract RepositoryDirectoryDirtinessChecker repositoryDirectoryDirtinessChecker();
 
   public static SkyframeExecutorRepositoryHelpersHolder create(
-      ManagedDirectoriesKnowledge managedDirectoriesKnowledge,
       RepositoryDirectoryDirtinessChecker repositoryDirectoryDirtinessChecker) {
     return new AutoValue_SkyframeExecutorRepositoryHelpersHolder(
-        managedDirectoriesKnowledge, repositoryDirectoryDirtinessChecker);
+        repositoryDirectoryDirtinessChecker);
   }
 }
diff --git a/src/main/java/com/google/devtools/build/lib/skyframe/WorkspaceFileFunction.java b/src/main/java/com/google/devtools/build/lib/skyframe/WorkspaceFileFunction.java
index 3ea17ab..37ddb85 100644
--- a/src/main/java/com/google/devtools/build/lib/skyframe/WorkspaceFileFunction.java
+++ b/src/main/java/com/google/devtools/build/lib/skyframe/WorkspaceFileFunction.java
@@ -250,8 +250,7 @@
           /* bindings = */ ImmutableMap.<String, Object>of(),
           workspaceFile,
           /* idx = */ 0, // first fragment
-          /* hasNext = */ false,
-          ImmutableMap.of());
+          /* hasNext = */ false);
     }
 
     // Get the state at the end of the previous chunk.
@@ -354,8 +353,7 @@
         parser.getVariableBindings(),
         workspaceFile,
         key.getIndex(),
-        key.getIndex() < chunks.size() - 1,
-        ImmutableMap.copyOf(parser.getManagedDirectories()));
+        key.getIndex() < chunks.size() - 1);
   }
 
   private static StarlarkFile parseWorkspaceFile(
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
index b69533c..8f0e648 100644
--- 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
@@ -66,7 +66,6 @@
 import com.google.devtools.build.lib.skyframe.FileFunction;
 import com.google.devtools.build.lib.skyframe.FileStateFunction;
 import com.google.devtools.build.lib.skyframe.IgnoredPackagePrefixesFunction;
-import com.google.devtools.build.lib.skyframe.ManagedDirectoriesKnowledge;
 import com.google.devtools.build.lib.skyframe.PackageFunction;
 import com.google.devtools.build.lib.skyframe.PackageFunction.ActionOnIOExceptionReadingBuildFile;
 import com.google.devtools.build.lib.skyframe.PackageFunction.GlobbingStrategy;
@@ -246,11 +245,7 @@
     public final PackageLoader build() {
       validate();
       externalFilesHelper =
-          ExternalFilesHelper.create(
-              pkgLocatorRef,
-              externalFileAction,
-              directories,
-              ManagedDirectoriesKnowledge.NO_MANAGED_DIRECTORIES);
+          ExternalFilesHelper.create(pkgLocatorRef, externalFileAction, directories);
       return buildImpl();
     }
 
diff --git a/src/main/java/com/google/devtools/build/lib/skyframe/packages/BUILD b/src/main/java/com/google/devtools/build/lib/skyframe/packages/BUILD
index bf0855e..f704ea2 100644
--- a/src/main/java/com/google/devtools/build/lib/skyframe/packages/BUILD
+++ b/src/main/java/com/google/devtools/build/lib/skyframe/packages/BUILD
@@ -48,7 +48,6 @@
         "//src/main/java/com/google/devtools/build/lib/skyframe:containing_package_lookup_function",
         "//src/main/java/com/google/devtools/build/lib/skyframe:file_function",
         "//src/main/java/com/google/devtools/build/lib/skyframe:ignored_package_prefixes_function",
-        "//src/main/java/com/google/devtools/build/lib/skyframe:managed_directories_knowledge",
         "//src/main/java/com/google/devtools/build/lib/skyframe:package_lookup_function",
         "//src/main/java/com/google/devtools/build/lib/skyframe:package_value",
         "//src/main/java/com/google/devtools/build/lib/skyframe:per_build_syscall_cache",
@@ -87,7 +86,6 @@
         "//src/main/java/com/google/devtools/build/lib/skyframe:action_environment_function",
         "//src/main/java/com/google/devtools/build/lib/skyframe:client_environment_function",
         "//src/main/java/com/google/devtools/build/lib/skyframe:directory_listing_function",
-        "//src/main/java/com/google/devtools/build/lib/skyframe:managed_directories_knowledge",
         "//src/main/java/com/google/devtools/build/lib/skyframe:package_lookup_function",
         "//src/main/java/com/google/devtools/build/lib/skyframe:precomputed_value",
         "//src/main/java/com/google/devtools/build/lib/skyframe:sky_functions",
diff --git a/src/main/java/com/google/devtools/build/lib/skyframe/packages/BazelPackageLoader.java b/src/main/java/com/google/devtools/build/lib/skyframe/packages/BazelPackageLoader.java
index 3cff84d..2f1cf6c 100644
--- a/src/main/java/com/google/devtools/build/lib/skyframe/packages/BazelPackageLoader.java
+++ b/src/main/java/com/google/devtools/build/lib/skyframe/packages/BazelPackageLoader.java
@@ -34,7 +34,6 @@
 import com.google.devtools.build.lib.skyframe.DirectoryListingStateFunction;
 import com.google.devtools.build.lib.skyframe.ExternalFilesHelper.ExternalFileAction;
 import com.google.devtools.build.lib.skyframe.LocalRepositoryLookupFunction;
-import com.google.devtools.build.lib.skyframe.ManagedDirectoriesKnowledge;
 import com.google.devtools.build.lib.skyframe.PackageFunction.ActionOnIOExceptionReadingBuildFile;
 import com.google.devtools.build.lib.skyframe.PackageLookupFunction.CrossRepositoryLabelViolationStrategy;
 import com.google.devtools.build.lib.skyframe.PrecomputedValue;
@@ -130,7 +129,6 @@
                       isFetch,
                       ImmutableMap::of,
                       directories,
-                      ManagedDirectoriesKnowledge.NO_MANAGED_DIRECTORIES,
                       EXTERNAL_PACKAGE_HELPER))
               .build());
 
diff --git a/src/main/java/com/google/devtools/build/lib/starlarkbuildapi/WorkspaceGlobalsApi.java b/src/main/java/com/google/devtools/build/lib/starlarkbuildapi/WorkspaceGlobalsApi.java
index deae557..93d27f9 100644
--- a/src/main/java/com/google/devtools/build/lib/starlarkbuildapi/WorkspaceGlobalsApi.java
+++ b/src/main/java/com/google/devtools/build/lib/starlarkbuildapi/WorkspaceGlobalsApi.java
@@ -19,7 +19,6 @@
 import net.starlark.java.annot.Param;
 import net.starlark.java.annot.ParamType;
 import net.starlark.java.annot.StarlarkMethod;
-import net.starlark.java.eval.Dict;
 import net.starlark.java.eval.EvalException;
 import net.starlark.java.eval.NoneType;
 import net.starlark.java.eval.Sequence;
@@ -62,24 +61,9 @@
                     + "letters, numbers, underscores, dashes, and dots.",
             named = true,
             positional = false),
-        @Param(
-            name = "managed_directories",
-            named = true,
-            positional = false,
-            defaultValue = "{}",
-            doc =
-                "Dict (strings to list of strings) for defining the mappings between external"
-                    + " repositories and relative (to the workspace root) paths to directories"
-                    + " they incrementally update."
-                    + "\nManaged directories must be excluded from the source tree by listing"
-                    + " them (or their parent directories) in the .bazelignore file."),
       },
       useStarlarkThread = true)
-  void workspace(
-      String name,
-      Dict<?, ?> managedDirectories, // <String, Sequence<String>>
-      StarlarkThread thread)
-      throws EvalException, InterruptedException;
+  void workspace(String name, StarlarkThread thread) throws EvalException, InterruptedException;
 
   @StarlarkMethod(
       name = "register_execution_platforms",