Makefile Pre-commit Hooks

Add Makefile linting to pre-commit configuration using mbake.

Tool: mbake

mbake is a Makefile formatter and linter.

pip install mbake
mbake format --check Makefile

Workflow

1. Check for Makefiles

Glob: Makefile, */Makefile, **/Makefile

If no Makefiles found, report and exit.

2. Check Existing Pre-commit Config

Glob: .pre-commit-config.yaml

If exists, merge mbake hook. If not, create minimal config.

3. Add mbake Hook

Use a local hook since mbake doesn't have an official pre-commit repo:

  # Makefile linting
  - repo: local
    hooks:
      - id: mbake
        name: mbake format
        entry: mbake format --check
        language: python
        additional_dependencies:
          - mbake
        files: (^|/)Makefile$
        types:
          - file

4. Report

Added Makefile linting to pre-commit:

Hook: mbake (local)
Files: Makefile, */Makefile

Install mbake: pip install mbake

Commands:
  mbake format Makefile        # Format in place
  mbake format --check Makefile  # Check only (CI mode)

mbake Features

• Format: Consistent indentation and spacing
• Check: Validate formatting without changes
• Diff: Show what would change

Hook Behavior

• Runs only when Makefile changes
• Skips if no Makefile present
• Uses --check flag (fails if formatting needed)

Manual Fix

If hook fails:

mbake format Makefile
git add Makefile