.bazelignore

+.cache
 e2e

.bazelrc

 # Use pre-release registry. Remove when available in BCR
 common --registry https://bcr.bazel.build
-common --registry=https://gitlab.arm.com/bazel/pre-commit/-/releases/v1.0.4/downloads
+common --registry=https://gitlab.arm.com/bazel/pre-commit/-/releases/v1.0.7/downloads
 
 # Enable hermetic `rules_python`
 common --@rules_python//python/config_settings:bootstrap_impl=script

.bazelversion

-8.1.1
+8.2.1

.gitlab-ci.yml

 include:
-  - component: "${CI_SERVER_HOST}/ci/component/bazelisk/ruleset@v1.2.1"
+  - component: "${CI_SERVER_HOST}/ci/component/bazelisk/ruleset@v1.5.0"
     inputs:
       oses:
         - linux
         - macos
       configs:
         - local
+      # FIXME: Revert to defaults once `--repo_contents_cache` is resolved
+      versions:
+        - 7.4.0
+        - 7.x
+        - 8.2.1
 
 hooks:
    extends: .job

BUILD.bazel

@@ -23,6 +23,7 @@ pre_commit_hooks(
     name = "pre-commit-hooks",
     srcs = [
         "//buildifier",
+        "//clang-format",
         "//ruff",
         "//shellcheck",
         "//shfmt",

CHANGELOG.md

+# [1.2.0](https://git.gitlab.arm.com/bazel/pre-commit-hooks/compare/v1.1.0...v1.2.0) (2025-07-15)
+
+### Bug Fixes
+
+- fix README.md typos ([3160309](https://git.gitlab.arm.com/bazel/pre-commit-hooks/commit/3160309f6815b8453dfcc7acf05ac2c323543575))
+- upgrade to `pre-commit@1.0.7` ([a196167](https://git.gitlab.arm.com/bazel/pre-commit-hooks/commit/a196167f7020f9052327953df42f455fe4bd51a0))
+
+### Features
+
+- add 'clang-format' hook ([2d5459b](https://git.gitlab.arm.com/bazel/pre-commit-hooks/commit/2d5459bd2fe86f6357b745f0bd92072a66b23137))
+
 # [1.1.0](https://git.gitlab.arm.com/bazel/pre-commit-hooks/compare/v1.0.0...v1.1.0) (2025-03-10)
 
 ### Bug Fixes

MODULE.bazel

 module(
     name = "pre-commit-hooks",
-    version = "1.1.0",
+    version = "1.2.0",
     compatibility_level = 1,
 )
 
 bazel_dep(name = "rules_license", version = "1.0.0")
-bazel_dep(name = "pre-commit", version = "1.0.4")
+bazel_dep(name = "pre-commit", version = "1.0.7")
 bazel_dep(name = "buildifier_prebuilt", version = "8.0.0")
 bazel_dep(name = "download_utils", version = "1.0.1")
 bazel_dep(name = "toolchain_utils", version = "1.2.0")
 bazel_dep(name = "rules_shellcheck", version = "0.3.3")
+bazel_dep(name = "llvm-project", version = "17.0.3.bcr.2")
 
 bazel_dep(name = "rules_python", version = "1.0.0", dev_dependency = True)
 bazel_dep(name = "hermetic_cc_toolchain", version = "3.1.0", dev_dependency = True)
@@ -62,3 +63,19 @@ download_file = use_repo_rule("@download_utils//download/file:defs.bzl", "downlo
         # ("arm64-windows", "windows_arm64", ".exe", ""), Currently doesn't have binary for arm64 Windows.
     )
 ]
+
+# Clang-format amd64 binaries
+[
+    download_file(
+        name = "clang-format-{}-amd64".format(os),
+        executable = True,
+        integrity = integrity,
+        output = "clang-format-{}-amd64".format(os),
+        urls = ["https://github.com/muttleyxd/clang-tools-static-binaries/releases/download/master-46b8640/clang-format-17_{}-amd64{}".format(os, ext)],
+    )
+    for os, ext, integrity in (
+        ("linux", "", "sha256-+PWRCQMgf/LM5fP8YhH/sbPC3R7d+qFc3qqCPvukwME="),
+        ("macosx", "", "sha256-J1FgM5qc7iz80O1HpAiBAgACpb0Dbl2y0ITYWlzBKHs="),
+        ("windows", ".exe", "sha256-UXCzva+NhYCQtnPGPSxuFuA8qg6LNx4aMSaEvP2l8oM="),
+    )
+]

README.md

@@ -7,18 +7,18 @@
 Add the following to `MODULE.bazel`:
 
 ```py
-bazel_dep("pre-commit", version = "<version>")
-bazel_dep("pre-commit-hooks", version = "<version>")
+bazel_dep(name = "pre-commit", version = "<version>")
+bazel_dep(name = "pre-commit-hooks", version = "<version>")
 ```
 
 Create a `hooks` directory to create the `pre-commit` configuration:
 
 ```py
-load("@pre-commit//pre-commit/defs.bzl", "pre_commit")
+load("@pre-commit//pre-commit:defs.bzl", "pre_commit")
 
 pre_commit(
     name = "hooks",
-    deps = ["@pre-commit-hooks"],
+    srcs = ["@pre-commit-hooks"],
 )
 ```
 

clang-format/BUILD.bazel

+load("@pre-commit//pre-commit/hook:defs.bzl", "pre_commit_hook")
+load("@toolchain_utils//toolchain/symlink/target:defs.bzl", "toolchain_symlink_target")
+
+alias(
+    name = "exe",
+    actual = select(
+        {
+            "@toolchain_utils//toolchain/constraint:amd64-linux": "@clang-format-linux-amd64//:clang-format-linux-amd64",
+            "@toolchain_utils//toolchain/constraint:arm64-linux": "@llvm-project//clang:clang-format",
+            "@toolchain_utils//toolchain/constraint:amd64-macos": "@clang-format-macosx-amd64//:clang-format-macosx-amd64",
+            "@toolchain_utils//toolchain/constraint:arm64-macos": "@llvm-project//clang:clang-format",
+            "@toolchain_utils//toolchain/constraint:amd64-windows": "@clang-format-windows-amd64//:clang-format-windows-amd64.exe",
+        },
+        no_match_error = "No hermetic `clang-format` found for `//pre-commit/hook/clang-format:cli`. Please set it to a hermetic `clang-format` download in `MODULE.bazel` for the current host platform.",
+    ),
+)
+
+toolchain_symlink_target(
+    name = "cli",
+    target = ":exe",
+)
+
+pre_commit_hook(
+    name = "clang-format",
+    src = ":cli",
+    args = [
+        "-i",
+    ],
+    description = "Performs formatting using `clang-format` on various file types.",
+    stages = ["@pre-commit//pre-commit/stage:pre-commit"],
+    summary = "Format various file types with `clang-format`",
+    types_or = [
+        "@pre-commit//pre-commit/tag:c",
+        "@pre-commit//pre-commit/tag:c++",
+    ],
+    visibility = ["//visibility:public"],
+)

e2e/.bazelrc

 # Use pre-release registry. Remove when available in BCR
 common --registry https://bcr.bazel.build
-common --registry=https://gitlab.arm.com/bazel/pre-commit/-/releases/v1.0.4/downloads
+common --registry=https://gitlab.arm.com/bazel/pre-commit/-/releases/v1.0.7/downloads
 
 # Enable hermetic `rules_python`
 common --@rules_python//python/config_settings:bootstrap_impl=script

e2e/.bazelversion

-8.1.1
+8.2.1

hooks/.pre-commit-config.yaml

@@ -49,6 +49,17 @@ repos:
     entry: bazel run --config=pre-commit -- //ruff:format
     types:
     - python
+  - id: //clang-format
+    name: Format various file types with `clang-format`
+    description: Performs formatting using `clang-format` on various file types.
+    language: system
+    require_serial: true
+    stages:
+    - pre-commit
+    entry: bazel run --config=pre-commit -- //clang-format
+    types_or:
+    - c
+    - c++
   - id: //shellcheck
     name: Lint Shell files with `shellcheck`
     description: Performs linting with `shellcheck` against Shell files.