refactor: remove protobuf_workspace (#181)

- removes protobuf workspace
- removes dependency on protobuf repository. 


currently, there are no prebuilt binaries available, it's built from the
source using the protobuf workspace. Will add the toolchain for prebuilt
binaries in a follow-up

RELNOTES[INC]: protobuf_repo was removed

---------

Co-authored-by: Ivo List <ilist@google.com>

10 files changed, 61 insertions, 503 deletions

diff --git a/MODULE.bazel b/MODULE.bazel
index f5f8c61..f3119b6 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -5,10 +5,8 @@ module(
 )
 
 bazel_dep(name = "bazel_skylib", version = "1.3.0")
-bazel_dep(name = "protobuf", version = "21.7", repo_name = "com_google_protobuf")
-
-# TODO(bazel-team): add support for protobuf_workspace
 
 # Dependencies needed in tests
 bazel_dep(name = "rules_cc", version = "0.0.1", dev_dependency = True)
 bazel_dep(name = "googletest", version = "1.11.0", dev_dependency = True, repo_name = "com_google_googletest")
+bazel_dep(name = "protobuf", version = "21.7", dev_dependency = True, repo_name = "com_google_protobuf")
\ No newline at end of file
diff --git a/WORKSPACE b/WORKSPACE
index b626c8f..709c8c3 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -6,29 +6,17 @@ rules_proto_dependencies()
 
 rules_proto_toolchains()
 
-# Test-only dependencies.
-
-load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
-
-http_archive(
-    name = "com_google_googletest",
-    sha256 = "81964fe578e9bd7c94dfdb09c8e4d6e6759e19967e397dbea48d1c10e45d0df2",
-    strip_prefix = "googletest-release-1.12.1",
-    urls = [
-        "https://mirror.bazel.build/github.com/google/googletest/archive/refs/tags/release-1.12.1.tar.gz",
-        "https://github.com/google/googletest/archive/refs/tags/release-1.12.1.tar.gz",
-    ],
-)
 
-http_archive(
-    name = "bazelci_rules",
-    sha256 = "eca21884e6f66a88c358e580fd67a6b148d30ab57b1680f62a96c00f9bc6a07e",
-    strip_prefix = "bazelci_rules-1.0.0",
-    url = "https://github.com/bazelbuild/continuous-integration/releases/download/rules-1.0.0/bazelci_rules-1.0.0.tar.gz",
-)
+# Dev-only dependencies. USERS SHOULD NOT INSTALL THESE!
+load(":dev_deps.bzl", "rules_proto_dev_deps")
+rules_proto_dev_deps()
 
-load("@bazelci_rules//:rbe_repo.bzl", "rbe_preconfig")
 
+load("@com_google_protobuf//:protobuf_deps.bzl", "protobuf_deps")
+protobuf_deps()
+
+
+load("@bazelci_rules//:rbe_repo.bzl", "rbe_preconfig")
 rbe_preconfig(
     name = "buildkite_config",
     toolchain = "ubuntu1804-bazel-java11",
diff --git a/dev_deps.bzl b/dev_deps.bzl
new file mode 100644
index 0000000..8924465
--- /dev/null
+++ b/dev_deps.bzl
@@ -0,0 +1,44 @@
+"""dev dependencies needed to develop rules_proto"""
+
+load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
+
+
+def rules_proto_dev_deps():
+    http_archive(
+        name = "rules_cc",   
+        sha256 = "4aeb102efbcfad509857d7cb9c5456731e8ce566bfbf2960286a2ec236796cc3",
+        strip_prefix = "rules_cc-2f8c04c04462ab83c545ab14c0da68c3b4c96191",
+        urls = [
+            "https://mirror.bazel.build/github.com/bazelbuild/rules_cc/archive/2f8c04c04462ab83c545ab14c0da68c3b4c96191.tar.gz",
+            "https://github.com/bazelbuild/rules_cc/archive/2f8c04c04462ab83c545ab14c0da68c3b4c96191.tar.gz",
+        ],
+    )
+
+    http_archive(
+        name = "com_google_googletest",
+        sha256 = "81964fe578e9bd7c94dfdb09c8e4d6e6759e19967e397dbea48d1c10e45d0df2",
+        strip_prefix = "googletest-release-1.12.1",
+        urls = [
+            "https://mirror.bazel.build/github.com/google/googletest/archive/refs/tags/release-1.12.1.tar.gz",
+            "https://github.com/google/googletest/archive/refs/tags/release-1.12.1.tar.gz",
+        ],
+    )
+
+    http_archive(
+        name = "bazelci_rules",
+        sha256 = "eca21884e6f66a88c358e580fd67a6b148d30ab57b1680f62a96c00f9bc6a07e",
+        strip_prefix = "bazelci_rules-1.0.0",
+        urls = [
+            "https://github.com/bazelbuild/continuous-integration/releases/download/rules-1.0.0/bazelci_rules-1.0.0.tar.gz",
+        ],
+    )
+
+    http_archive(
+        name = "com_google_protobuf",
+        sha256 = "75be42bd736f4df6d702a0e4e4d30de9ee40eac024c4b845d17ae4cc831fe4ae",
+        strip_prefix = "protobuf-21.7",
+        urls = [
+            "https://mirror.bazel.build/github.com/protocolbuffers/protobuf/archive/v21.7.tar.gz",
+            "https://github.com/protocolbuffers/protobuf/archive/v21.7.tar.gz",
+        ],
+    )
\ No newline at end of file
diff --git a/proto/BUILD b/proto/BUILD
index 907b091..4cbb2a0 100644
--- a/proto/BUILD
+++ b/proto/BUILD
@@ -29,9 +29,6 @@ bzl_library(
         "repositories.bzl",
     ],
     visibility = ["//visibility:public"],
-    deps = [
-        "//proto/private:dependencies",
-    ],
 )
 
 # Toolchain type provided by proto_toolchain rule and used by proto_library
diff --git a/proto/private/BUILD b/proto/private/BUILD
index f45f4ed..92ef5fd 100644
--- a/proto/private/BUILD
+++ b/proto/private/BUILD
@@ -1,12 +1,6 @@
 load("@bazel_skylib//:bzl_library.bzl", "bzl_library")
 
 bzl_library(
-    name = "dependencies",
-    srcs = ["dependencies.bzl"],
-    visibility = ["//proto:__subpackages__"],
-)
-
-bzl_library(
     name = "native",
     srcs = ["native.bzl"],
     visibility = ["//proto:__subpackages__"],
diff --git a/proto/private/BUILD.protoc b/proto/private/BUILD.protoc
deleted file mode 100644
index cfcbf32..0000000
--- a/proto/private/BUILD.protoc
+++ /dev/null
@@ -1,18 +0,0 @@
-load("@rules_proto//proto/private:dependencies.bzl", "protoc_binary")
-
-protoc_binary(
-    name = "protoc",
-    srcs = select({
-        ":windows": ["bin/protoc.exe"],
-        "//conditions:default": ["bin/protoc"],
-    }),
-    executable = "protoc.exe",
-    visibility = ["//visibility:public"],
-)
-
-config_setting(
-    name = "windows",
-    constraint_values = [
-        "@platforms//os:windows",
-    ],
-)
diff --git a/proto/private/BUILD.release b/proto/private/BUILD.release
deleted file mode 100644
index a12828d..0000000
--- a/proto/private/BUILD.release
+++ /dev/null
@@ -1,164 +0,0 @@
-load("@rules_proto//proto:defs.bzl", "proto_lang_toolchain")
-
-# Use precompiled binaries where possible.
-alias(
-    name = "protoc",
-    actual = select({
-        ":linux-aarch64": "@com_google_protobuf_protoc_linux_aarch64//:protoc",
-        ":linux-ppc": "@com_google_protobuf_protoc_linux_ppc//:protoc",
-        ":linux-s390x": "@com_google_protobuf_protoc_linux_s390_64//:protoc",
-        ":linux-x86_32": "@com_google_protobuf_protoc_linux_x86_32//:protoc",
-        ":linux-x86_64": "@com_google_protobuf_protoc_linux_x86_64//:protoc",
-        ":macos-aarch64": "@com_google_protobuf_protoc_macos_aarch64//:protoc",
-        ":macos-x86_64": "@com_google_protobuf_protoc_macos_x86_64//:protoc",
-        ":windows-x86_32": "@com_google_protobuf_protoc_windows_x86_32//:protoc",
-        ":windows-x86_64": "@com_google_protobuf_protoc_windows_x86_64//:protoc",
-        "//conditions:default": "@com_github_protocolbuffers_protobuf//:protoc",
-    }),
-    visibility = ["//visibility:public"],
-)
-
-# Use the jars from maven.
-alias(
-    name = "protobuf_java",
-    actual = "@com_google_protobuf_protobuf_java//jar",
-    visibility = ["//visibility:public"],
-)
-
-alias(
-    name = "protobuf_java_util",
-    actual = "@com_google_protobuf_protobuf_java_util//jar",
-    visibility = ["//visibility:public"],
-)
-
-alias(
-    name = "protobuf_javalite",
-    actual = "@com_google_protobuf_protobuf_javalite//jar",
-    visibility = ["//visibility:public"],
-)
-
-proto_lang_toolchain(
-    name = "java_toolchain",
-    command_line = "--java_out=$(OUT)",
-    runtime = ":protobuf_java",
-    visibility = ["//visibility:public"],
-)
-
-proto_lang_toolchain(
-    name = "javalite_toolchain",
-    command_line = "--java_out=lite:$(OUT)",
-    runtime = ":protobuf_javalite",
-    visibility = ["//visibility:public"],
-)
-
-# Redirect everything else to the source
-redirect_targets = [
-    "wrappers_proto",
-    "well_known_type_protos",
-    "timestamp_proto",
-    "struct_proto",
-    "python_specific_test_protos_genproto",
-    "python_common_test_protos_genproto",
-    "protobuf_python_genproto",
-    "protobuf_python",
-    "protobuf_objc",
-    "protobuf_headers",
-    "objectivec",
-    "field_mask_proto",
-    "empty_proto",
-    "duration_proto",
-    "compiler_plugin_proto",
-    "descriptor_proto",
-    "cc_wkt_protos",
-    "cc_toolchain",
-    "cc_test_protos_genproto",
-    "cc_wkt_protos_genproto",
-    "api_proto",
-    "type_proto",
-    "source_context_proto",
-    "any_proto",
-    "protoc_lib",
-    "protobuf",
-    "protobuf_lite",
-]
-
-[
-    alias(
-        name = target,
-        actual = "@com_github_protocolbuffers_protobuf//:" + target,
-        visibility = ["//visibility:public"],
-    )
-    for target in redirect_targets
-]
-
-config_setting(
-    name = "linux-aarch64",
-    constraint_values = [
-        "@platforms//os:linux",
-        "@platforms//cpu:aarch64",
-    ],
-)
-
-config_setting(
-    name = "linux-ppc",
-    constraint_values = [
-        "@platforms//os:linux",
-        "@platforms//cpu:ppc",
-    ],
-)
-
-config_setting(
-    name = "linux-s390x",
-    constraint_values = [
-        "@platforms//os:linux",
-        "@platforms//cpu:s390x",
-    ],
-)
-
-config_setting(
-    name = "linux-x86_32",
-    constraint_values = [
-        "@platforms//os:linux",
-        "@platforms//cpu:x86_32",
-    ],
-)
-
-config_setting(
-    name = "linux-x86_64",
-    constraint_values = [
-        "@platforms//os:linux",
-        "@platforms//cpu:x86_64",
-    ],
-)
-
-config_setting(
-    name = "macos-aarch64",
-    constraint_values = [
-        "@platforms//os:osx",
-        "@platforms//cpu:arm64",
-    ],
-)
-
-config_setting(
-    name = "macos-x86_64",
-    constraint_values = [
-        "@platforms//os:osx",
-        "@platforms//cpu:x86_64",
-    ],
-)
-
-config_setting(
-    name = "windows-x86_32",
-    constraint_values = [
-        "@platforms//os:windows",
-        "@platforms//cpu:x86_32",
-    ],
-)
-
-config_setting(
-    name = "windows-x86_64",
-    constraint_values = [
-        "@platforms//os:windows",
-        "@platforms//cpu:x86_64",
-    ],
-)
diff --git a/proto/private/dependencies.bzl b/proto/private/dependencies.bzl
deleted file mode 100644
index fca301c..0000000
--- a/proto/private/dependencies.bzl
+++ /dev/null
@@ -1,220 +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.
-
-"""All development and production dependencies of rules_proto."""
-
-dependencies = {
-    "bazel_skylib": {
-        "sha256": "74d544d96f4a5bb630d465ca8bbcfe231e3594e5aae57e1edbf17a6eb3ca2506",
-        "urls": [
-            "https://github.com/bazelbuild/bazel-skylib/releases/download/1.3.0/bazel-skylib-1.3.0.tar.gz",
-            "https://mirror.bazel.build/github.com/bazelbuild/bazel-skylib/releases/download/1.3.0/bazel-skylib-1.3.0.tar.gz",
-        ],
-    },
-    "com_github_protocolbuffers_protobuf": {
-        "sha256": "75be42bd736f4df6d702a0e4e4d30de9ee40eac024c4b845d17ae4cc831fe4ae",
-        "strip_prefix": "protobuf-21.7",
-        "urls": [
-            "https://mirror.bazel.build/github.com/protocolbuffers/protobuf/archive/v21.7.tar.gz",
-            "https://github.com/protocolbuffers/protobuf/archive/v21.7.tar.gz",
-        ],
-    },
-    "com_google_protobuf_protoc_linux_aarch64": {
-        "build_file": "@rules_proto//proto/private:BUILD.protoc",
-        "sha256": "2696a8f9a61ce67c510d000c88e2d0a8b5adf1f90514e461e8d8943c46d04737",
-        "urls": [
-            "https://mirror.bazel.build/github.com/protocolbuffers/protobuf/releases/download/v21.7/protoc-21.7-linux-aarch_64.zip",
-            "https://github.com/protocolbuffers/protobuf/releases/download/v21.7/protoc-21.7-linux-aarch_64.zip",
-        ],
-    },
-    "com_google_protobuf_protoc_linux_ppc": {
-        "build_file": "@rules_proto//proto/private:BUILD.protoc",
-        "sha256": "ffa8298f1e64d25e09e2389edf8093fa1a70d34a042623aca769b4f7815e5490",
-        "urls": [
-            "https://mirror.bazel.build/github.com/protocolbuffers/protobuf/releases/download/v21.7/protoc-21.7-linux-ppcle_64.zip",
-            "https://github.com/protocolbuffers/protobuf/releases/download/v21.7/protoc-21.7-linux-ppcle_64.zip",
-        ],
-    },
-    "com_google_protobuf_protoc_linux_s390_64": {
-        "build_file": "@rules_proto//proto/private:BUILD.protoc",
-        "sha256": "983c1139e0e4ce6121028e0408919cd7a35a5c813f2df40066b05f822c1df226",
-        "urls": [
-            "https://mirror.bazel.build/github.com/protocolbuffers/protobuf/releases/download/v21.7/protoc-21.7-linux-s390_64.zip",
-            "https://github.com/protocolbuffers/protobuf/releases/download/v21.7/protoc-21.7-linux-s390_64.zip",
-        ],
-    },
-    "com_google_protobuf_protoc_linux_x86_32": {
-        "build_file": "@rules_proto//proto/private:BUILD.protoc",
-        "sha256": "f245128a20586fc24dcd3f64a417313a228372fb37fe108d039b8927489b1b88",
-        "urls": [
-            "https://mirror.bazel.build/github.com/protocolbuffers/protobuf/releases/download/v21.7/protoc-21.7-linux-x86_32.zip",
-            "https://github.com/protocolbuffers/protobuf/releases/download/v21.7/protoc-21.7-linux-x86_32.zip",
-        ],
-    },
-    "com_google_protobuf_protoc_linux_x86_64": {
-        "build_file": "@rules_proto//proto/private:BUILD.protoc",
-        "sha256": "0a260c6df439bcf1ecdd5e38e7a7648e4edf99c1a22a4cc66ce8e62c53bdb837",
-        "urls": [
-            "https://mirror.bazel.build/github.com/protocolbuffers/protobuf/releases/download/v21.7/protoc-21.7-linux-x86_64.zip",
-            "https://github.com/protocolbuffers/protobuf/releases/download/v21.7/protoc-21.7-linux-x86_64.zip",
-        ],
-    },
-    "com_google_protobuf_protoc_macos_aarch64": {
-        "build_file": "@rules_proto//proto/private:BUILD.protoc",
-        "sha256": "f79a67d708aba6ff2c6208578a6f2bf94f1528795aed646b65e99d4a678c97f8",
-        "urls": [
-            "https://mirror.bazel.build/github.com/protocolbuffers/protobuf/releases/download/v21.7/protoc-21.7-osx-aarch_64.zip",
-            "https://github.com/protocolbuffers/protobuf/releases/download/v21.7/protoc-21.7-osx-aarch_64.zip",
-        ],
-    },
-    "com_google_protobuf_protoc_macos_x86_64": {
-        "build_file": "@rules_proto//proto/private:BUILD.protoc",
-        "sha256": "cd3609fa1efc73db9c58fc63e40b240558eb2a8080b4fbfbe1c4b93bbedecc20",
-        "urls": [
-            "https://mirror.bazel.build/github.com/protocolbuffers/protobuf/releases/download/v21.7/protoc-21.7-osx-x86_64.zip",
-            "https://github.com/protocolbuffers/protobuf/releases/download/v21.7/protoc-21.7-osx-x86_64.zip",
-        ],
-    },
-    "com_google_protobuf_protoc_windows_x86_32": {
-        "build_file": "@rules_proto//proto/private:BUILD.protoc",
-        "sha256": "1e3856cc5fc5074e566c7b8da90f74d2b5b6a80e3df9eafb4a86f7bb8ab32772",
-        "urls": [
-            "https://mirror.bazel.build/github.com/protocolbuffers/protobuf/releases/download/v21.7/protoc-21.7-win32.zip",
-            "https://github.com/protocolbuffers/protobuf/releases/download/v21.7/protoc-21.7-win32.zip",
-        ],
-    },
-    "com_google_protobuf_protoc_windows_x86_64": {
-        "build_file": "@rules_proto//proto/private:BUILD.protoc",
-        "sha256": "954cc5dfdb1d95d4c448c40f274d3720c018f73187b0c19b3c4f9bacc48d1ff0",
-        "urls": [
-            "https://mirror.bazel.build/github.com/protocolbuffers/protobuf/releases/download/v21.7/protoc-21.7-win64.zip",
-            "https://github.com/protocolbuffers/protobuf/releases/download/v21.7/protoc-21.7-win64.zip",
-        ],
-    },
-    # Dependency of `com_github_protocolbuffers_protobuf`.
-    "rules_cc": {
-        "sha256": "4aeb102efbcfad509857d7cb9c5456731e8ce566bfbf2960286a2ec236796cc3",
-        "strip_prefix": "rules_cc-2f8c04c04462ab83c545ab14c0da68c3b4c96191",
-        "urls": [
-            "https://mirror.bazel.build/github.com/bazelbuild/rules_cc/archive/2f8c04c04462ab83c545ab14c0da68c3b4c96191.tar.gz",
-            "https://github.com/bazelbuild/rules_cc/archive/2f8c04c04462ab83c545ab14c0da68c3b4c96191.tar.gz",
-        ],
-    },
-    # Dependency of `com_github_protocolbuffers_protobuf`.
-    "rules_java": {
-        "sha256": "9a72d1bade803e1913d1e0a6f8beb35786fa3e8e460c98a56d2054200b9f6c5e",
-        "strip_prefix": "rules_java-385292fcfd244186e5e5811122ed32cf214a9024",
-        "urls": [
-            "https://mirror.bazel.build/github.com/bazelbuild/rules_java/archive/385292fcfd244186e5e5811122ed32cf214a9024.tar.gz",
-            "https://github.com/bazelbuild/rules_java/archive/385292fcfd244186e5e5811122ed32cf214a9024.tar.gz",
-        ],
-    },
-    # Dependency of `com_github_protocolbuffers_protobuf`.
-    "rules_pkg": {
-        "sha256": "8a298e832762eda1830597d64fe7db58178aa84cd5926d76d5b744d6558941c2",
-        "urls": [
-            "https://mirror.bazel.build/github.com/bazelbuild/rules_pkg/releases/download/0.7.0/rules_pkg-0.7.0.tar.gz",
-            "https://github.com/bazelbuild/rules_pkg/releases/download/0.7.0/rules_pkg-0.7.0.tar.gz",
-        ],
-    },
-    # Dependency of `com_github_protocolbuffers_protobuf`.
-    "rules_python": {
-        "sha256": "e5470e92a18aa51830db99a4d9c492cc613761d5bdb7131c04bd92b9834380f6",
-        "strip_prefix": "rules_python-4b84ad270387a7c439ebdccfd530e2339601ef27",
-        "urls": [
-            "https://mirror.bazel.build/github.com/bazelbuild/rules_python/archive/4b84ad270387a7c439ebdccfd530e2339601ef27.tar.gz",
-            "https://github.com/bazelbuild/rules_python/archive/4b84ad270387a7c439ebdccfd530e2339601ef27.tar.gz",
-        ],
-    },
-    # Dependency of `com_github_protocolbuffers_protobuf`.
-    "zlib": {
-        "build_file": "@com_github_protocolbuffers_protobuf//:third_party/zlib.BUILD",
-        "sha256": "91844808532e5ce316b3c010929493c0244f3d37593afd6de04f71821d5136d9",
-        "strip_prefix": "zlib-1.2.12",
-        "urls": [
-            "https://mirror.bazel.build/zlib.net/zlib-1.2.12.tar.gz",
-            "https://zlib.net/zlib-1.2.12.tar.gz",
-        ],
-    },
-}
-
-maven_dependencies = {
-    "com_google_protobuf_protobuf_java": {
-        "jar_sha256": "a204ec68748a7b26351ae37a311e8de468f248d1916d5f8dbe812c1289d0a0ff",
-        "jar_urls": [
-            "https://mirror.bazel.build/repo1.maven.org/maven2/com/google/protobuf/protobuf-java/3.21.7/protobuf-java-3.21.7.jar",
-            "https://repo1.maven.org/maven2/com/google/protobuf/protobuf-java/3.21.7/protobuf-java-3.21.7.jar",
-        ],
-        "srcjar_sha256": "c664e12e6e3fea801477edf95014980a8a96528d3904d2add90c68b5d047a6c2",
-        "srcjar_urls": [
-            "https://mirror.bazel.build/repo1.maven.org/maven2/com/google/protobuf/protobuf-java/3.21.7/protobuf-java-3.21.7-sources.jar",
-            "https://repo1.maven.org/maven2/com/google/protobuf/protobuf-java/3.21.7/protobuf-java-3.21.7-sources.jar",
-        ],
-    },
-    "com_google_protobuf_protobuf_java_util": {
-        "jar_sha256": "9b98a2a4eb9ebc6103b14ab81badb82e32c8fe1d751aa4055830424974b7e142",
-        "jar_urls": [
-            "https://mirror.bazel.build/repo1.maven.org/maven2/com/google/protobuf/protobuf-java-util/3.21.7/protobuf-java-util-3.21.7.jar",
-            "https://repo1.maven.org/maven2/com/google/protobuf/protobuf-java-util/3.21.7/protobuf-java-util-3.21.7.jar",
-        ],
-        "srcjar_sha256": "43b9188848b01cec71d34326868e25c102b2a344c6ef1072d54c3681559c5f57",
-        "srcjar_urls": [
-            "https://mirror.bazel.build/repo1.maven.org/maven2/com/google/protobuf/protobuf-java-util/3.21.7/protobuf-java-util-3.21.7-sources.jar",
-            "https://repo1.maven.org/maven2/com/google/protobuf/protobuf-java-util/3.21.7/protobuf-java-util-3.21.7-sources.jar",
-        ],
-    },
-    "com_google_protobuf_protobuf_javalite": {
-        "jar_sha256": "43945d791ece2012bb9086907e124ff814afd4014209f67cc89e7f324390c061",
-        "jar_urls": [
-            "https://mirror.bazel.build/repo1.maven.org/maven2/com/google/protobuf/protobuf-javalite/3.21.7/protobuf-javalite-3.21.7.jar",
-            "https://repo1.maven.org/maven2/com/google/protobuf/protobuf-javalite/3.21.7/protobuf-javalite-3.21.7.jar",
-        ],
-        "srcjar_sha256": "e1c557e98c59d10dbd657c69a1e15b7585a592402f12c78026f9d0bfb605c310",
-        "srcjar_urls": [
-            "https://mirror.bazel.build/repo1.maven.org/maven2/com/google/protobuf/protobuf-javalite/3.21.7/protobuf-javalite-3.21.7-sources.jar",
-            "https://repo1.maven.org/maven2/com/google/protobuf/protobuf-javalite/3.21.7/protobuf-javalite-3.21.7-sources.jar",
-        ],
-    },
-}
-
-def _protobuf_workspace_impl(ctx):
-    ctx.symlink(ctx.attr._build, "BUILD")
-    ctx.symlink(ctx.attr._protobuf_bzl, "protobuf.bzl")
-    ctx.symlink(ctx.attr._protobuf_deps_bzl, "protobuf_deps.bzl")
-
-protobuf_workspace = repository_rule(
-    implementation = _protobuf_workspace_impl,
-    attrs = {
-        "_build": attr.label(default = "@rules_proto//proto/private:BUILD.release"),
-        "_protobuf_bzl": attr.label(default = "@com_github_protocolbuffers_protobuf//:protobuf.bzl"),
-        "_protobuf_deps_bzl": attr.label(default = "@com_github_protocolbuffers_protobuf//:protobuf_deps.bzl"),
-    },
-)
-
-def protoc_binary(name, srcs, executable, **kwargs):
-    """protoc_binary makes a copy of the protoc binary to bazel-bin.
-
-This is a workaround to make sure protoc can be used with attributes
-which don't allow files."""
-
-    # TODO(yannic) replace this with a symlink after https://github.com/bazelbuild/bazel/pull/10695
-    native.genrule(
-        name = name,
-        executable = True,
-        srcs = srcs,
-        outs = [executable],
-        cmd_bash = "cp $< $@ && chmod +x $@",
-        cmd_bat = "copy $< $@",
-        **kwargs
-    )
diff --git a/proto/private/generate_sums.sh b/proto/private/generate_sums.sh
deleted file mode 100755
index 0c8ea20..0000000
--- a/proto/private/generate_sums.sh
+++ /dev/null
@@ -1,61 +0,0 @@
-#!/usr/bin/env bash
-
-# Copyright 2020 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.
-
-set -e -o pipefail
-VERSION=$1
-if [ -z "$VERSION" ]; then
-  echo "usage: $0 version"
-  exit 1
-fi
-
-URLS=(
-    "https://github.com/protocolbuffers/protobuf/archive/v${VERSION}.tar.gz"
-    "https://github.com/protocolbuffers/protobuf/releases/download/v${VERSION}/protoc-${VERSION}-linux-aarch_64.zip"
-    "https://github.com/protocolbuffers/protobuf/releases/download/v${VERSION}/protoc-${VERSION}-linux-ppcle_64.zip"
-    "https://github.com/protocolbuffers/protobuf/releases/download/v${VERSION}/protoc-${VERSION}-linux-s390_64.zip"
-    "https://github.com/protocolbuffers/protobuf/releases/download/v${VERSION}/protoc-${VERSION}-linux-x86_32.zip"
-    "https://github.com/protocolbuffers/protobuf/releases/download/v${VERSION}/protoc-${VERSION}-linux-x86_64.zip"
-    "https://github.com/protocolbuffers/protobuf/releases/download/v${VERSION}/protoc-${VERSION}-osx-aarch_64.zip"
-    "https://github.com/protocolbuffers/protobuf/releases/download/v${VERSION}/protoc-${VERSION}-osx-x86_64.zip"
-    "https://github.com/protocolbuffers/protobuf/releases/download/v${VERSION}/protoc-${VERSION}-win32.zip"
-    "https://github.com/protocolbuffers/protobuf/releases/download/v${VERSION}/protoc-${VERSION}-win64.zip"
-    "https://repo1.maven.org/maven2/com/google/protobuf/protobuf-java/3.${VERSION}/protobuf-java-3.${VERSION}.jar"
-    "https://repo1.maven.org/maven2/com/google/protobuf/protobuf-java/3.${VERSION}/protobuf-java-3.${VERSION}-sources.jar"
-    "https://repo1.maven.org/maven2/com/google/protobuf/protobuf-java-util/3.${VERSION}/protobuf-java-util-3.${VERSION}.jar"
-    "https://repo1.maven.org/maven2/com/google/protobuf/protobuf-java-util/3.${VERSION}/protobuf-java-util-3.${VERSION}-sources.jar"
-    "https://repo1.maven.org/maven2/com/google/protobuf/protobuf-javalite/3.${VERSION}/protobuf-javalite-3.${VERSION}.jar"
-    "https://repo1.maven.org/maven2/com/google/protobuf/protobuf-javalite/3.${VERSION}/protobuf-javalite-3.${VERSION}-sources.jar"
-)
-
-for U in "${URLS[@]}"; do
-  echo "Downloading '${U}'..."
-  MU="https://mirror.bazel.build/${U#"https://"}"
-  SUM=$(curl -L --fail -q "$U" | shasum -a 256 | cut -d' ' -f1)
-  echo ""
-  echo "        \"sha256\": \"${SUM}\","
-  echo "        \"urls\": ["
-  echo "            \"$MU\","
-  echo "            \"$U\","
-  echo "        ],"
-done
-
-echo "******************** IMPORTANT ********************"
-echo ""
-echo "Please upload the following files to mirror.bazel.build:"
-echo ""
-for U in "${URLS[@]}"; do
-  echo "  $U"
-done
diff --git a/proto/repositories.bzl b/proto/repositories.bzl
index 86440a3..3cf220c 100644
--- a/proto/repositories.bzl
+++ b/proto/repositories.bzl
@@ -15,21 +15,21 @@
 """Dependencies and toolchains required to use rules_proto."""
 
 load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
-load("@bazel_tools//tools/build_defs/repo:java.bzl", "java_import_external")
 load("@bazel_tools//tools/build_defs/repo:utils.bzl", "maybe")
-load("//proto/private:dependencies.bzl", "dependencies", "maven_dependencies", "protobuf_workspace")
 
 def rules_proto_dependencies():
     """An utility method to load all dependencies of `rules_proto`.
 
     Loads the remote repositories used by default in Bazel.
     """
-
-    for name in dependencies:
-        maybe(http_archive, name, **dependencies[name])
-    for name in maven_dependencies:
-        maybe(java_import_external, name, **maven_dependencies[name])
-    protobuf_workspace(name = "com_google_protobuf")
+    maybe(
+        http_archive,
+        name = "bazel_skylib",
+        sha256 = "74d544d96f4a5bb630d465ca8bbcfe231e3594e5aae57e1edbf17a6eb3ca2506",
+        urls = [
+            "https://github.com/bazelbuild/bazel-skylib/releases/download/1.3.0/bazel-skylib-1.3.0.tar.gz",
+        ],
+    )
 
 def rules_proto_toolchains():
     """An utility method to load all Protobuf toolchains."""