Automated g4 rollback of commit d5ee3b5.

*** Reason for rollback ***

The go rules have tons of transitive dependencies that are not declared in their "local" WORKSPACE files, so this broke lots of projects on ci.bazel.build

I'll fix up the go rules, update all of _their_ reverse-dep projects, and resubmit.

*** Original change description ***

Repositories can only be accessed in projects that define them in their WORKSPACE file

This is prep for #1943 - hierarchical workspace loading.

RELNOTES[INC]: Remote repositories must define any remote repositories they
themselves use (e.g., if @x//:foo depends on @y//:bar, @y must be defined
in @x's WORKSPACE file).

PiperOrigin-RevId: 154321845

src/main/java/com/google/devtools/build/lib/skyframe/ConfiguredTargetFunction.java

@@ -22,7 +22,6 @@
 import com.google.common.base.VerifyException;
 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.collect.LinkedHashMultimap;
 import com.google.common.collect.LinkedListMultimap;
@@ -51,7 +50,6 @@
 import com.google.devtools.build.lib.analysis.config.InvalidConfigurationException;
 import com.google.devtools.build.lib.analysis.config.PatchTransition;
 import com.google.devtools.build.lib.cmdline.Label;
-import com.google.devtools.build.lib.cmdline.RepositoryName;
 import com.google.devtools.build.lib.collect.nestedset.NestedSet;
 import com.google.devtools.build.lib.collect.nestedset.NestedSetBuilder;
 import com.google.devtools.build.lib.collect.nestedset.Order;
@@ -71,8 +69,6 @@
 import com.google.devtools.build.lib.packages.SkylarkProviderIdentifier;
 import com.google.devtools.build.lib.packages.Target;
 import com.google.devtools.build.lib.packages.TargetUtils;
-import com.google.devtools.build.lib.rules.repository.RepositoryVisibilityFunction;
-import com.google.devtools.build.lib.rules.repository.RepositoryVisibilityFunction.RepositoryVisibilityValue;
 import com.google.devtools.build.lib.skyframe.AspectFunction.AspectCreationException;
 import com.google.devtools.build.lib.skyframe.AspectValue.AspectKey;
 import com.google.devtools.build.lib.skyframe.SkyframeExecutor.BuildViewProvider;
@@ -95,7 +91,6 @@
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
-import java.util.Map.Entry;
 import java.util.Objects;
 import java.util.Set;
 import java.util.concurrent.Semaphore;
@@ -341,35 +336,6 @@ static OrderedSetMultimap<Attribute, ConfiguredTarget> computeDependencies(
       throw new DependencyEvaluationException(e);
     }
 
-    RepositoryName ctgRepository = ctgValue.getLabel().getPackageIdentifier().getRepository();
-    ImmutableSet.Builder<SkyKey> pairsToCheck = ImmutableSet.builder();
-    for (Dependency dep : depValueNames.values()) {
-      RepositoryName depRepository = dep.getLabel().getPackageIdentifier().getRepository();
-      if (ctgRepository.equals(depRepository) || depRepository.isMain()) {
-        continue;
-      }
-      pairsToCheck.add(RepositoryVisibilityFunction.key(ctgRepository, depRepository));
-    }
-    Map<SkyKey, SkyValue> pairs = env.getValues(pairsToCheck.build());
-    if (env.valuesMissing()) {
-      return null;
-    }
-    boolean hadError = false;
-    for (Entry<SkyKey, SkyValue> entry : pairs.entrySet()) {
-      if (!((RepositoryVisibilityValue) entry.getValue()).ok()) {
-        RepositoryVisibilityFunction.Key key =
-            (RepositoryVisibilityFunction.Key) entry.getKey().argument();
-        String message = ctgValue.getLabel() + " has a dependency on "
-            + key.child() + " but does not define " + key.child() + " in its WORKSPACE";
-        env.getListener().handle(Event.error(message));
-        hadError = true;
-      }
-    }
-    if (hadError) {
-      throw new DependencyEvaluationException(
-          new ConfiguredValueCreationException("Missing external repository definitions"));
-    }
-
     // Trim each dep's configuration so it only includes the fragments needed by its transitive
     // closure (only dynamic configurations support this).
     if (useDynamicConfigurations(ctgValue.getConfiguration())) {

src/main/java/com/google/devtools/build/lib/skyframe/SkyFunctions.java

@@ -109,8 +109,6 @@ public final class SkyFunctions {
       SkyFunctionName.create("ACTION_TEMPLATE_EXPANSION");
   public static final SkyFunctionName LOCAL_REPOSITORY_LOOKUP =
       SkyFunctionName.create("LOCAL_REPOSITORY_LOOKUP");
-  public static final SkyFunctionName REPOSITORY_DEPENDENCY =
-      SkyFunctionName.create("REPOSITORY_DEPENDENCY");
 
   public static Predicate<SkyKey> isSkyFunction(final SkyFunctionName functionName) {
     return new Predicate<SkyKey>() {

src/main/java/com/google/devtools/build/lib/skyframe/SkyframeExecutor.java

@@ -105,7 +105,6 @@
 import com.google.devtools.build.lib.pkgcache.TestFilter;
 import com.google.devtools.build.lib.pkgcache.TransitivePackageLoader;
 import com.google.devtools.build.lib.profiler.AutoProfiler;
-import com.google.devtools.build.lib.rules.repository.RepositoryVisibilityFunction;
 import com.google.devtools.build.lib.skyframe.AspectValue.AspectValueKey;
 import com.google.devtools.build.lib.skyframe.DirtinessCheckerUtils.FileDirtinessChecker;
 import com.google.devtools.build.lib.skyframe.ExternalFilesHelper.ExternalFileAction;
@@ -447,7 +446,6 @@ private ImmutableMap<SkyFunctionName, SkyFunction> skyFunctions(
         SkyFunctions.ACTION_TEMPLATE_EXPANSION,
         new ActionTemplateExpansionFunction(removeActionsAfterEvaluation));
     map.put(SkyFunctions.LOCAL_REPOSITORY_LOOKUP, new LocalRepositoryLookupFunction());
-    map.put(SkyFunctions.REPOSITORY_DEPENDENCY, new RepositoryVisibilityFunction());
     map.putAll(extraSkyFunctions);
     return map.build();
   }

src/test/java/com/google/devtools/build/lib/rules/cpp/CcCommonTest.java

@@ -551,9 +551,7 @@ public void testCcLibraryExternalIncludesNotWarned() throws Exception {
             new ModifiedFileSet.Builder().modify(PathFragment.create("WORKSPACE")).build(),
             rootDirectory);
     FileSystemUtils.createDirectoryAndParents(scratch.resolve("/foo/bar"));
-    scratch.file("/foo/WORKSPACE",
-        "workspace(name = 'pkg')",
-        "local_repository(name = 'bazel_tools', path = '/whatever')");
+    scratch.file("/foo/WORKSPACE", "workspace(name = 'pkg')");
     scratch.file(
         "/foo/bar/BUILD",
         "cc_library(name = 'lib',",

src/test/java/com/google/devtools/build/lib/rules/cpp/proto/CcProtoLibraryTest.java

@@ -149,9 +149,7 @@ public void outputDirectoryForProtoCompileAction_externalRepos() throws Exceptio
     scratch.file(
         "x/BUILD", "cc_proto_library(name = 'foo_cc_proto', deps = ['@bla//foo:bar_proto'])");
 
-    scratch.file("/bla/WORKSPACE",
-        "local_repository(name = 'com_google_protobuf', path = '/whatever')",
-        "local_repository(name = 'com_google_protobuf_cc', path = '/whatever')");
+    scratch.file("/bla/WORKSPACE");
     // Create the rule '@bla//foo:bar_proto'.
     scratch.file(
         "/bla/foo/BUILD",

src/test/shell/bazel/external_correctness_test.sh

@@ -176,15 +176,12 @@ function test_refs_btwn_repos() {
   REMOTE1=$TEST_TMPDIR/remote1
   REMOTE2=$TEST_TMPDIR/remote2
   mkdir -p $REMOTE1 $REMOTE2
-  touch $REMOTE1/WORKSPACE
+  touch $REMOTE1/WORKSPACE $REMOTE2/WORKSPACE
   cat > $REMOTE1/input <<EOF
 1.0
 EOF
   cat > $REMOTE1/BUILD <<EOF
 exports_files(['input'])
-EOF
-  cat > $REMOTE2/WORKSPACE <<EOF
-local_repository(name = "remote1", path = "/whatever")
 EOF
   cat > $REMOTE2/BUILD <<EOF
 genrule(

src/test/shell/bazel/workspace_test.sh

@@ -190,9 +190,6 @@ EOF
   touch foo/baz
   cat > bar/WORKSPACE <<EOF
 workspace(name = "bar")
-
-# Needs to be defined, since @foo is referenced from the genrule.
-local_repository(name = "foo", path = "/whatever")
 EOF
   cat > bar/BUILD <<EOF
 genrule(
@@ -246,77 +243,4 @@ EOF
   assert_contains "override" bazel-genfiles/external/o/gen.out
 }
 
-function test_direct_deps() {
-  REPO1="$PWD/repo1"
-  REPO2="$PWD/repo2"
-  mkdir -p "$REPO1" "$REPO2"
-
-  # repo1 has dependencies on the main repo and repo2.
-  cat > "$REPO1/WORKSPACE" <<EOF
-workspace(name = "repo1")
-
-local_repository(name = "repo2", path = "/whatever")
-# Definition of main_repo purposely omitted to make build fail.
-EOF
-  cat > "$REPO1/BUILD" << EOF
-genrule(
-    name = "bar",
-    srcs = ["@repo2//:baz", "@main_repo//:qux"],
-    outs = ["bar.out"],
-    cmd = "echo \$(SRCS) > \$@",
-    visibility = ["//visibility:public"],
-)
-EOF
-
-  # repo2 has no dependencies.
-  touch "$REPO2/WORKSPACE"
-  cat > "$REPO2/BUILD" << EOF
-genrule(
-    name = "baz",
-    outs = ["baz.out"],
-    cmd = "echo 'baz' > \$@",
-    visibility = ["//visibility:public"],
-)
-EOF
-
-  # The main repo has dependencies on repo1.
-  cat > WORKSPACE << EOF
-workspace(name = "main_repo")
-
-local_repository(name = "repo1", path = "$REPO1")
-# TODO: move this to repo1/WORKSPACE once hierarchical workspaces work.
-local_repository(name = "repo2", path = "$REPO2")
-EOF
-  cat > BUILD <<EOF
-exports_files(["qux"])
-genrule(
-    name = "foo",
-    srcs = ["@repo1//:bar"],
-    outs = ["foo.out"],
-    cmd = "echo 'hi' > \$@",
-)
-EOF
-  touch qux
-
-  bazel build //:foo &> $TEST_log && fail "Expected missing main_repo"
-  expect_log "@repo1//:bar has a dependency on @main_repo but does not define @main_repo in its WORKSPACE"
-
-  cat > "$REPO1/WORKSPACE" <<EOF
-workspace(name = "repo1")
-
-local_repository(name = "main_repo", path = "/whatever")
-# Definition of repo2 purposely omitted to make build fail.
-EOF
-  bazel build //:foo &> $TEST_log && fail "Expected missing repo2"
-  expect_log "@repo1//:bar has a dependency on @repo2 but does not define @repo2 in its WORKSPACE"
-
-  cat > "$REPO1/WORKSPACE" <<EOF
-workspace(name = "repo1")
-
-local_repository(name = "main_repo", path = "/whatever")
-local_repository(name = "repo2", path = "/whatever")
-EOF
-  bazel build //:foo &> $TEST_log || fail "Expected success"
-}
-
 run_suite "workspace tests"