Make bazel_tools work again

This PR address two problems:
- Partially rolledback bazelbuild@ef1a21f to restore android tools extension to avoid breaking older rules_jvm_external and rules_kotlin versions: bazel-contrib/rules_jvm_external#1270
- Add protobuf in MODULE.tools to ensure a Bazel 8 compatible version gets selected. (related bazelbuild#23908)

Closes bazelbuild#24094.

PiperOrigin-RevId: 690625240
Change-Id: I47e9ab7cab9bbfd09e455fb72d3d99d3e73f1f90

src/MODULE.tools

@@ -37,6 +37,7 @@ use_repo(buildozer_binary, "buildozer_binary")
 
 # Dependencies used to auto-load removed symbols and rules from Bazel (due to Starlarkification)
 # See also:  --incompatible_autoload_externally, AutoloadSymbols
+bazel_dep(name = "protobuf", version = "29.0-rc2")
 bazel_dep(name = "rules_java", version = "8.2.0")
 bazel_dep(name = "rules_cc", version = "0.0.13")
 bazel_dep(name = "rules_python", version = "0.36.0")

src/test/shell/integration/discard_graph_edges_test.sh

@@ -274,13 +274,13 @@ function test_packages_cleared() {
   # is still low (external packages don't contribute there). We can lower this
   # number again once we remove WORKSPACE logic and move repo rules to not use
   # Package anymore.
-  [[ "$package_count" -le 53 ]] \
+  [[ "$package_count" -le 56 ]] \
       || fail "package count $package_count too high"
   globs_count="$(extract_histogram_count "$histo_file" "GlobsValue$")"
   [[ "$globs_count" -le 1 ]] \
       || fail "globs count $globs_count too high"
   module_count="$(extract_histogram_count "$histo_file" 'eval.Module$')"
-  [[ "$module_count" -le 270 ]] \
+  [[ "$module_count" -le 295 ]] \
       || fail "Module count $module_count too high"
   ct_count="$(extract_histogram_count "$histo_file" \
        'RuleConfiguredTarget$')"

src/test/shell/testenv.sh

@@ -592,12 +592,6 @@ function add_rules_license() {
 
 function add_protobuf() {
   add_bazel_dep "protobuf" "$1"
-  cat >> "$1" <<EOF
-single_version_override(
-    module_name = "protobuf",
-    version = "29.0-rc2",
-)
-EOF
 }
 
 function add_rules_testing() {

src/test/tools/bzlmod/verify_default_lock_file.sh

@@ -42,15 +42,19 @@ expected_modules=(
   jsoncpp
   platforms
   protobuf
+  pybind11_bazel
+  re2
+  rules_android
   rules_cc
+  rules_fuzzing
   rules_java
   rules_jvm_external
+  rules_kotlin
   rules_license
   rules_pkg
   rules_proto
   rules_python
   rules_shell
-  stardoc
   zlib
 )
 

tools/BUILD

@@ -46,6 +46,7 @@ filegroup(
         exclude = ["fastutil.proguard"],
     ) + [
         "//tools/allowlists:srcs",
+        "//tools/android:embedded_tools",
         "//tools/bash:embedded_tools",
         "//tools/build_defs:embedded_tools",
         "//tools/build_rules:embedded_tools_srcs",
@@ -76,6 +77,7 @@ filegroup(
     name = "bzl_srcs",
     srcs = [
         "//tools:build_defs.bzl",
+        "//tools/android:bzl_srcs",
         "//tools/build_defs:bzl_srcs",
         "//tools/build_rules:bzl_srcs",
         "//tools/cpp:bzl_srcs",

tools/android/BUILD

@@ -41,6 +41,14 @@ filegroup(
     ],
 )
 
+filegroup(
+    name = "embedded_tools",
+    srcs = [
+        "BUILD.tools",
+        "android_extensions.bzl",
+    ],
+)
+
 platform(
     name = "arm64-v8a",
     constraint_values = [

tools/android/BUILD.tools

@@ -0,0 +1,5 @@
+filegroup(
+    name = "bzl_srcs",
+    srcs = glob(["*.bzl"]),
+    visibility = ["//tools:__pkg__"],
+)