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Ultracite integrates with popular Git hook tools to automatically format and lint your code before every commit. This ensures all committed code follows your project’s standards without manual intervention.

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Setup

During initialization, you can select which Git hook tool to use: 
npx ultracite init --integrations husky,lint-staged
Or select them interactively when prompted.

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Supported Tools

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Husky

Husky is a popular tool for managing Git hooks. Ultracite creates a .husky/pre-commit file that runs npx ultracite fix before each commit.
.husky/pre-commit
npx ultracite fix

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lefthook

lefthook is a fast Git hooks manager written in Go. Ultracite creates a lefthook.yml configuration:
lefthook.yml
pre-commit:
  jobs:
    - run: npx ultracite fix
      stage_fixed: true

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lint-staged

lint-staged runs linters only on staged files. Ultracite adds configuration to your package.json or creates a .lintstagedrc file:
package.json
{
  "lint-staged": {
    "*.{js,jsx,ts,tsx,json,jsonc,css}": ["npx ultracite fix"]
  }
}
Note: lint-staged is typically used alongside Husky or lefthook to trigger the pre-commit hook.

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pre-commit

pre-commit is a Python-based framework for managing Git hooks. Ultracite creates a .pre-commit-config.yaml:
.pre-commit-config.yaml
repos:
  - repo: local
    hooks:
      - id: ultracite
        name: ultracite
        entry: npx ultracite fix
        language: system
        types_or: [javascript, jsx, ts, tsx, json, css]
        pass_filenames: false
After setup, run pre-commit install to activate the hooks.

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How It Works

  1. You make changes and stage files with git add
  2. You run git commit
  3. The pre-commit hook runs npx ultracite fix
  4. Code is formatted and auto-fixable issues are resolved
  5. The commit proceeds with properly formatted code

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Benefits

  • Consistency: All committed code follows the same standards
  • Automation: No need to remember to format code manually
  • Clean History: Formatting issues never enter your repository
  • Team Collaboration: Everyone follows the same rules automatically

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Bypassing Hooks

In rare cases where you need to skip the pre-commit hook: 
git commit --no-verify
Use this sparingly, as it bypasses the automated formatting.