Adding pre-commit actions (#172)

* Add pre-commit config file

* test

* added documentation

* pre-commit docs

* added gitclang format instead

* fixed docs

* git clang format by path

* test commit

* removing test file

* Removes --force and simplify docs

---------

Co-authored-by: BlakeFreer <[email protected]>

.pre-commit-config.yaml

@@ -0,0 +1,21 @@
+# Minimum version of pre-commit
+minimum_pre_commit_version: "2.9.0"
+
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.6.0
+    hooks:
+      # Prevent committing directly to the main branch
+      - id: no-commit-to-branch
+        args: [--branch, main]
+        stages: [commit]
+
+  - repo: local
+    hooks:
+      - id: clang-format
+        name: Run git-clang-format
+        entry: git clang-format --style=file --staged
+        language: python
+        stages: [commit]
+        additional_dependencies:
+          - clang-format~=19.0

docs/docs/firmware/dev-setup.md

@@ -234,3 +234,23 @@ __Important:__ Create an empty file named `.clangd` in the `firmware/` directory
 You will need a Unix development environment (Unix machine, WSL, or remote into the Raspberry Pi).
 
 Go through the [gRPC C++ Quickstart Guide](https://grpc.io/docs/languages/cpp/quickstart/). Build the example project.
+
+## Pre-Commit Setup
+
+We use `pre-commit` hooks to run formatting and code checks before the code is pushed.
+
+### Installing Pre-Commit
+
+1. Install `pre-commit` via pip:
+
+    ```bash
+    pip install pre-commit
+    ```
+
+2. Install the git hooks by running this command in the `racecar` directory:
+
+    ```bash
+    pre-commit install
+    ```
+
+    This will install the hooks so they run automatically when you use `git commit`.