feat: build core with bazel 8

Moving the core tool to bazel 8, make sure we use the proper prebuilt
protoc now

Author: manuelnaranjo

.bazelrc

@@ -1,6 +1,5 @@
 # Import Aspect bazelrc presets
-try-import %workspace%/.aspect/bazelrc/bazel7.bazelrc # will only work in bazel7+
-import %workspace%/.aspect/bazelrc/bazel6.bazelrc # will only work in bazel6+
+import %workspace%/.aspect/bazelrc/bazel7.bazelrc # will only work in bazel7+
 import %workspace%/.aspect/bazelrc/convenience.bazelrc
 import %workspace%/.aspect/bazelrc/correctness.bazelrc
 import %workspace%/.aspect/bazelrc/debug.bazelrc
@@ -11,6 +10,7 @@ common --incompatible_enable_proto_toolchain_resolution
 
 # inside the rules project we build from source
 common --extra_toolchains=//cmd:bazeldnf-host-toolchain
+common --@protobuf//bazel/toolchains:prefer_prebuilt_protoc
 
 # make sure bazel doesn't complain on hosts without java
 common --java_runtime_version=remotejdk_21

.bazelversion

@@ -1 +1 @@
-7.x
+8.x

MODULE.bazel

@@ -17,13 +17,13 @@ use_repo(
 register_toolchains("@bazeldnf_toolchains//:all")
 
 # bazeldnf starlark dependenies
-bazel_dep(name = "bazel_skylib", version = "1.8.0")
+bazel_dep(name = "bazel_skylib", version = "1.9.0")
 bazel_dep(name = "platforms", version = "1.0.0")
-bazel_dep(name = "bazel_features", version = "1.38.0")
+bazel_dep(name = "bazel_features", version = "1.41.0")
 
 # if someone wants to build the bazeldnf toolchain from sources needs this set of dependencies
 bazel_dep(name = "gazelle", version = "0.47.0")
-bazel_dep(name = "rules_go", version = "0.59.0")
+bazel_dep(name = "rules_go", version = "0.60.0")
 
 go_sdk = use_extension("@rules_go//go:extensions.bzl", "go_sdk", dev_dependency = True)
 go_sdk.download(version = "1.24.1")
@@ -87,32 +87,13 @@ use_repo(
     "bazeldnf_internal_libvirt-libs",
 )
 
-bazel_dep(name = "protobuf", version = "33.1", dev_dependency = True)
-bazel_dep(name = "toolchains_protoc", version = "0.6.0", dev_dependency = True)
-
-protoc = use_extension("@toolchains_protoc//protoc:extensions.bzl", "protoc", dev_dependency = True)
-use_repo(protoc, "toolchains_protoc_hub")
+bazel_dep(name = "protobuf", version = "33.5", dev_dependency = True)
 
 # deps only needed for the repo internals
-bazel_dep(name = "bazel_skylib_gazelle_plugin", version = "1.8.2", dev_dependency = True)
-bazel_dep(name = "aspect_bazel_lib", version = "2.21.2", dev_dependency = True)
-bazel_dep(name = "buildifier_prebuilt", version = "8.2.1", dev_dependency = True)
-bazel_dep(name = "rules_pkg", version = "1.1.0", dev_dependency = True)
-bazel_dep(name = "stardoc", version = "0.8.0", dev_dependency = True)
-bazel_dep(name = "rules_proto", version = "7.1.0", dev_dependency = True)
-bazel_dep(name = "rules_java", version = "9.0.3", dev_dependency = True)
-
-protobuf_java = use_extension("//bazeldnf:extensions.bzl", "protobuf_java", dev_dependency = True)
-use_repo(protobuf_java, "protobuf-java")
-
-register_toolchains(
-    "//tools/toolchains:all",
-    dev_dependency = True,
-)
-
-register_toolchains(
-    "@toolchains_protoc_hub//:all",
-    dev_dependency = True,
-)
-
-bazel_dep(name = "rules_cc", version = "0.2.14", dev_dependency = True)
+bazel_dep(name = "bazel_skylib_gazelle_plugin", version = "1.9.0", dev_dependency = True)
+bazel_dep(name = "aspect_bazel_lib", version = "2.22.5", dev_dependency = True)
+bazel_dep(name = "buildifier_prebuilt", version = "8.2.1.2", dev_dependency = True)
+bazel_dep(name = "rules_pkg", version = "1.2.0", dev_dependency = True)
+bazel_dep(name = "stardoc", version = "0.8.1", dev_dependency = True)
+bazel_dep(name = "rules_java", version = "9.5.0", dev_dependency = True)
+bazel_dep(name = "rules_cc", version = "0.2.16", dev_dependency = True)

bazeldnf/extensions.bzl

@@ -424,27 +424,3 @@ bazeldnf = module_extension(
         "config": _config_tag,
     },
 )
-
-def _protobuf_java_extension(module_ctx):
-    http_jar(
-        name = "protobuf-java",
-        integrity = "sha256-0C+GOpCj/8d9Xu7AMcGOV58wx8uY8/OoFP6LiMQ9O8g=",
-        urls = ["https://repo1.maven.org/maven2/com/google/protobuf/protobuf-java/4.27.3/protobuf-java-4.27.3.jar"],
-    )
-
-    kwargs = {}
-    if bazel_features.external_deps.extension_metadata_has_reproducible:
-        kwargs["reproducible"] = True
-
-    if module_ctx.root_module_has_non_dev_dependency:
-        kwargs["root_module_direct_deps"] = []
-        kwargs["root_module_direct_dev_deps"] = ["protobuf-java"]
-    else:
-        kwargs["root_module_direct_deps"] = []
-        kwargs["root_module_direct_dev_deps"] = ["protobuf-java"]
-
-    return module_ctx.extension_metadata(**kwargs)
-
-protobuf_java = module_extension(
-    implementation = _protobuf_java_extension,
-)