Delete CcHostToolchainAlias rule.

RELNOTES: This is a breaking change. `cc_host_toolchain_alias` rule is obsolete and can be interchangeably used with `cc_toolchain_alias` rule.
PiperOrigin-RevId: 549922106
Change-Id: I585af28fef8b63155311b43ce99633af079ba96d
diff --git a/MODULE.bazel b/MODULE.bazel
index beaff95..4c14098 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -15,7 +15,7 @@
 bazel_dep(name = "stardoc", version = "0.5.3", repo_name = "io_bazel_skydoc")
 bazel_dep(name = "zstd-jni", version = "1.5.2-3")
 bazel_dep(name = "zlib", version = "1.2.13")
-bazel_dep(name = "rules_cc", version = "0.0.6")
+bazel_dep(name = "rules_cc", version = "0.0.8")
 bazel_dep(name = "rules_java", version = "6.2.2")
 bazel_dep(name = "rules_proto", version = "5.3.0-21.7")
 bazel_dep(name = "rules_jvm_external", version = "5.2")
diff --git a/distdir_deps.bzl b/distdir_deps.bzl
index ff88235..cf9bd19 100644
--- a/distdir_deps.bzl
+++ b/distdir_deps.bzl
@@ -53,14 +53,14 @@
     # Used in src/main/java/com/google/devtools/build/lib/bazel/rules/java/jdk.WORKSPACE.
     # Used in src/test/java/com/google/devtools/build/lib/blackbox/framework/blackbox.WORKSAPCE
     "rules_cc": {
-        "archive": "rules_cc-0.0.6.tar.gz",
-        "sha256": "3d9e271e2876ba42e114c9b9bc51454e379cbf0ec9ef9d40e2ae4cec61a31b40",
-        "urls": ["https://github.com/bazelbuild/rules_cc/releases/download/0.0.6/rules_cc-0.0.6.tar.gz"],
+        "archive": "rules_cc-0.0.8.tar.gz",
+        "sha256": "ae46b722a8b8e9b62170f83bfb040cbf12adb732144e689985a66b26410a7d6f",
+        "urls": ["https://github.com/bazelbuild/rules_cc/releases/download/0.0.8/rules_cc-0.0.8.tar.gz"],
         "used_in": [
             "additional_distfiles",
         ],
-        "package_version": "0.0.6",
-        "strip_prefix": "rules_cc-0.0.6",
+        "package_version": "0.0.8",
+        "strip_prefix": "rules_cc-0.0.8",
     },
     "rules_java": {
         "aliases": [
diff --git a/src/MODULE.tools b/src/MODULE.tools
index 8f1a3fd..ba39313 100644
--- a/src/MODULE.tools
+++ b/src/MODULE.tools
@@ -1,6 +1,6 @@
 module(name = "bazel_tools")
 
-bazel_dep(name = "rules_cc", version = "0.0.6")
+bazel_dep(name = "rules_cc", version = "0.0.8")
 bazel_dep(name = "rules_java", version = "6.2.2")
 bazel_dep(name = "rules_license", version = "0.0.3")
 bazel_dep(name = "rules_proto", version = "4.0.0")
diff --git a/src/main/java/com/google/devtools/build/lib/bazel/rules/CcRules.java b/src/main/java/com/google/devtools/build/lib/bazel/rules/CcRules.java
index e6a8355..22498d0 100644
--- a/src/main/java/com/google/devtools/build/lib/bazel/rules/CcRules.java
+++ b/src/main/java/com/google/devtools/build/lib/bazel/rules/CcRules.java
@@ -27,7 +27,6 @@
 import com.google.devtools.build.lib.bazel.rules.cpp.BazelCppRuleClasses.CcToolchainRequiringRule;
 import com.google.devtools.build.lib.rules.apple.AppleConfiguration;
 import com.google.devtools.build.lib.rules.core.CoreRules;
-import com.google.devtools.build.lib.rules.cpp.CcHostToolchainAliasRule;
 import com.google.devtools.build.lib.rules.cpp.CcImportRule;
 import com.google.devtools.build.lib.rules.cpp.CcInfo;
 import com.google.devtools.build.lib.rules.cpp.CcLibcTopAlias;
@@ -83,7 +82,6 @@
     builder.addRuleDefinition(new CcToolchainRule());
     builder.addRuleDefinition(new CcToolchainSuiteRule());
     builder.addRuleDefinition(new CcToolchainAliasRule());
-    builder.addRuleDefinition(new CcHostToolchainAliasRule());
     builder.addRuleDefinition(new CcLibcTopAlias());
     builder.addRuleDefinition(new CcImportRule());
     builder.addRuleDefinition(new CcToolchainRequiringRule());
diff --git a/src/main/java/com/google/devtools/build/lib/rules/cpp/CcHostToolchainAliasRule.java b/src/main/java/com/google/devtools/build/lib/rules/cpp/CcHostToolchainAliasRule.java
deleted file mode 100644
index 759e884..0000000
--- a/src/main/java/com/google/devtools/build/lib/rules/cpp/CcHostToolchainAliasRule.java
+++ /dev/null
@@ -1,85 +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.rules.cpp;
-
-import static com.google.devtools.build.lib.packages.Attribute.attr;
-import static com.google.devtools.build.lib.packages.BuildType.LABEL;
-
-import com.google.devtools.build.lib.actions.MutableActionGraph.ActionConflictException;
-import com.google.devtools.build.lib.analysis.BaseRuleClasses;
-import com.google.devtools.build.lib.analysis.ConfiguredTarget;
-import com.google.devtools.build.lib.analysis.RuleConfiguredTargetBuilder;
-import com.google.devtools.build.lib.analysis.RuleConfiguredTargetFactory;
-import com.google.devtools.build.lib.analysis.RuleContext;
-import com.google.devtools.build.lib.analysis.RuleDefinition;
-import com.google.devtools.build.lib.analysis.RuleDefinitionEnvironment;
-import com.google.devtools.build.lib.analysis.Runfiles;
-import com.google.devtools.build.lib.analysis.RunfilesProvider;
-import com.google.devtools.build.lib.analysis.TemplateVariableInfo;
-import com.google.devtools.build.lib.analysis.TransitiveInfoCollection;
-import com.google.devtools.build.lib.analysis.config.ExecutionTransitionFactory;
-import com.google.devtools.build.lib.analysis.platform.ToolchainInfo;
-import com.google.devtools.build.lib.packages.RuleClass;
-import javax.annotation.Nullable;
-
-/** Implementation of the {@code cc_toolchain_alias} rule. */
-public class CcHostToolchainAliasRule implements RuleDefinition {
-
-  @Override
-  public RuleClass build(RuleClass.Builder builder, RuleDefinitionEnvironment env) {
-    return builder
-        .requiresConfigurationFragments(CppConfiguration.class)
-        .removeAttribute("licenses")
-        .removeAttribute("distribs")
-        .add(
-            attr("$cc_toolchain_alias", LABEL)
-                .cfg(ExecutionTransitionFactory.createFactory())
-                .value(env.getToolsLabel("//tools/cpp:current_cc_toolchain")))
-        .build();
-  }
-
-  @Override
-  public Metadata getMetadata() {
-    return Metadata.builder()
-        .name("cc_host_toolchain_alias")
-        .ancestors(BaseRuleClasses.NativeBuildRule.class)
-        .factoryClass(CcHostToolchainAlias.class)
-        .build();
-  }
-
-  /** Implementation of cc_host_toolchain_alias. */
-  public static class CcHostToolchainAlias implements RuleConfiguredTargetFactory {
-    @Override
-    @Nullable
-    public ConfiguredTarget create(RuleContext ruleContext)
-        throws InterruptedException, RuleErrorException, ActionConflictException {
-
-      TransitiveInfoCollection ccToolchainAlias =
-          ruleContext.getPrerequisite("$cc_toolchain_alias");
-      CcToolchainProvider ccToolchainProvider = ccToolchainAlias.get(CcToolchainProvider.PROVIDER);
-      TemplateVariableInfo templateVariableInfo =
-          ccToolchainAlias.get(TemplateVariableInfo.PROVIDER);
-      ToolchainInfo toolchain = ccToolchainAlias.get(ToolchainInfo.PROVIDER);
-
-      return new RuleConfiguredTargetBuilder(ruleContext)
-          .addProvider(RunfilesProvider.simple(Runfiles.EMPTY))
-          .addNativeDeclaredProvider(ccToolchainProvider)
-          .addNativeDeclaredProvider(toolchain)
-          .addNativeDeclaredProvider(templateVariableInfo)
-          .setFilesToBuild(ccToolchainProvider.getAllFilesIncludingLibc())
-          .build();
-    }
-  }
-}
diff --git a/src/test/java/com/google/devtools/build/lib/rules/cpp/BUILD b/src/test/java/com/google/devtools/build/lib/rules/cpp/BUILD
index 7fca39b..24decb4 100644
--- a/src/test/java/com/google/devtools/build/lib/rules/cpp/BUILD
+++ b/src/test/java/com/google/devtools/build/lib/rules/cpp/BUILD
@@ -220,18 +220,6 @@
 )
 
 java_test(
-    name = "CcHostToolchainAliasTest",
-    srcs = ["CcHostToolchainAliasTest.java"],
-    deps = [
-        "//src/main/java/com/google/devtools/build/lib/analysis:configured_target",
-        "//src/main/java/com/google/devtools/build/lib/rules/cpp",
-        "//src/test/java/com/google/devtools/build/lib/analysis/util",
-        "//third_party:junit4",
-        "//third_party:truth",
-    ],
-)
-
-java_test(
     name = "CcImportConfiguredTargetTest",
     srcs = ["CcImportConfiguredTargetTest.java"],
     deps = [
diff --git a/src/test/java/com/google/devtools/build/lib/rules/cpp/CcHostToolchainAliasTest.java b/src/test/java/com/google/devtools/build/lib/rules/cpp/CcHostToolchainAliasTest.java
deleted file mode 100644
index ff450e6..0000000
--- a/src/test/java/com/google/devtools/build/lib/rules/cpp/CcHostToolchainAliasTest.java
+++ /dev/null
@@ -1,96 +0,0 @@
-// Copyright 2018 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.cpp;
-
-import static com.google.common.truth.Truth.assertThat;
-
-import com.google.devtools.build.lib.analysis.ConfiguredTarget;
-import com.google.devtools.build.lib.analysis.util.BuildViewTestCase;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.junit.runners.JUnit4;
-
-/** Tests for toolchain features. */
-@RunWith(JUnit4.class)
-public class CcHostToolchainAliasTest extends BuildViewTestCase {
-
-  @Test
-  public void testCcHostToolchainAliasRuleHasExecConfiguration() throws Exception {
-    scratch.file("a/BUILD", "cc_host_toolchain_alias(name='current_cc_host_toolchain')");
-
-    ConfiguredTarget target = getConfiguredTarget("//a:current_cc_host_toolchain");
-    CcToolchainProvider toolchainProvider = target.get(CcToolchainProvider.PROVIDER);
-
-    assertThat(toolchainProvider.isToolConfiguration()).isTrue();
-  }
-
-  @Test
-  public void testThatHostCrosstoolTopCommandLineArgumentWorks() throws Exception {
-    scratch.file(
-        "b/BUILD",
-        "load(':cc_toolchain_config.bzl', 'cc_toolchain_config')",
-        "cc_toolchain_suite(",
-        "  name = 'my_custom_toolchain_suite',",
-        "  toolchains = {",
-        "    'k8': '//b:toolchain_b',",
-        "    'k8|gcc-4.4.0': '//b:toolchain_b',",
-        "    'k8|compiler': '//b:toolchain_b',",
-        "    'x64_windows|windows_msys64': '//b:toolchain_b',",
-        "    'darwin_x86_64|compiler': '//b:toolchain_b',",
-        "})",
-        "cc_toolchain(",
-        "    name = 'toolchain_b',",
-        "    toolchain_config = ':mock_config',",
-        "    all_files = ':banana',",
-        "    ar_files = ':empty',",
-        "    as_files = ':empty',",
-        "    compiler_files = ':empty',",
-        "    dwp_files = ':empty',",
-        "    linker_files = ':empty',",
-        "    strip_files = ':empty',",
-        "    objcopy_files = ':empty')",
-        "cc_toolchain_config(name='mock_config')");
-
-    scratch.file(
-        "b/cc_toolchain_config.bzl",
-        "def _impl(ctx):",
-        "    return cc_common.create_cc_toolchain_config_info(",
-        "                ctx = ctx,",
-        "                toolchain_identifier = 'custom_toolchain',",
-        "                host_system_name = 'mock-system-name-for-k8',",
-        "                target_system_name = 'mock-target-system-name-for-k8',",
-        "                target_cpu = 'k8',",
-        "                target_libc = 'mock-libc-for-k8',",
-        "                compiler = 'mock-compiler-for-k8',",
-        "                abi_libc_version = 'mock-abi-libc-for-k8',",
-        "                abi_version = 'mock-abi-version-for-k8')",
-        "cc_toolchain_config = rule(",
-        "    implementation = _impl,",
-        "    attrs = {},",
-        "    provides = [CcToolchainConfigInfo],",
-        ")");
-
-    scratch.file("a/BUILD", "cc_host_toolchain_alias(name='current_cc_host_toolchain')");
-
-    useConfiguration(
-        "--noincompatible_enable_cc_toolchain_resolution",
-        "--host_crosstool_top=//b:my_custom_toolchain_suite",
-        "--host_cpu=k8");
-    ConfiguredTarget target = getConfiguredTarget("//a:current_cc_host_toolchain");
-
-    CcToolchainProvider ccToolchainProvider = target.get(CcToolchainProvider.PROVIDER);
-    assertThat(ccToolchainProvider.getToolchainIdentifier()).isEqualTo("custom_toolchain");
-  }
-}
diff --git a/src/test/py/bazel/testdata/runfiles_test/WORKSPACE.mock b/src/test/py/bazel/testdata/runfiles_test/WORKSPACE.mock
index 7c57bf2..d2e2ec3 100644
--- a/src/test/py/bazel/testdata/runfiles_test/WORKSPACE.mock
+++ b/src/test/py/bazel/testdata/runfiles_test/WORKSPACE.mock
@@ -4,9 +4,9 @@
 
 http_archive(
     name = "rules_cc",
-    sha256 = "3d9e271e2876ba42e114c9b9bc51454e379cbf0ec9ef9d40e2ae4cec61a31b40",
+    sha256 = "ae46b722a8b8e9b62170f83bfb040cbf12adb732144e689985a66b26410a7d6f",
     urls = [
-        "https://github.com/bazelbuild/rules_cc/releases/download/0.0.6/rules_cc-0.0.6.tar.gz",
+        "https://github.com/bazelbuild/rules_cc/releases/download/0.0.8/rules_cc-0.0.8.tar.gz",
     ],
-    strip_prefix = "rules_cc-0.0.6",
+    strip_prefix = "rules_cc-0.0.8",
 )