pre-commit-hooks is a collection of ready-to-use hooks for the pre-commit framework that enforce code quality and repository integrity checks at commit time.
The tool solves the problem of preventing problematic code and files from entering a repository by providing a curated set of hooks that run automatically before commits are created. These hooks check for common issues like syntax errors in JSON, YAML, TOML, and XML files; Python code validity; merge conflict markers; oversized files; case-sensitive filename conflicts; missing shebangs on executables; broken symlinks; and debugger statements left in code. Each hook can be configured with arguments to customize its behavior, such as setting file size limits or specifying domains for VCS permalink validation.
Teams should adopt this tool if they want to establish baseline code quality standards without building custom hooks from scratch. It works well for projects using Python or those that need to validate multiple file formats commonly found in modern codebases. The hooks are particularly valuable for catching environmental issues like Windows-incompatible filenames or symlink problems that can cause friction across different development platforms. Since these are general-purpose checks rather than language-specific linters, they complement rather than replace project-specific tooling.
The project maintains a stable collection of hooks addressing recurring problems across diverse repositories. Development activity shows consistent refinement of existing hooks with support for edge cases and platform-specific concerns, such as handling git-lfs files or accommodating GitHub Enterprise domains. The tool receives updates that expand configurability of individual hooks rather than pursuing rapid feature expansion.
