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Simple CLI tool to check and update pre-commit hooks.

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pre-commit-update is a simple CLI tool to check and update pre-commit hooks.

Table of contents

  1. Reasoning
  2. Installation
  3. Usage
    1. Pipeline usage example
    2. pre-commit hook usage example
    3. pyproject.toml usage example

1. Reasoning

pre-commit is a nice little tool that helps you polish your code before releasing it into the wild. It is fairly easy to use. A single pre-commit-config.yaml file can hold multiple hooks (checks) that will go through your code or repository and do certain checks. The trick is that file is static and once you pin your hook versions after a while they get outdated.

pre-commit has a CLI that helps with that by making use of pre-commit autoupdate command so the question is why the f* are you reading this?

pre-commit-update was created mostly because there is no easy way to update your hooks by using pre-commit autoupdate and avoiding non-stable (alpha, beta, ...) hook versions. pre-commit-update comes with a CLI that can be configured to solve that problem - along with other use cases.

Other than that - I was bored ^^

2. Installation

pre-commit-update is available on PyPI:

$ python -m pip install pre-commit-update

Python >= 3.7 is supported.

NOTE: Please make sure that git is installed.

3. Usage

pre-commit-update CLI can be used as below:

Usage: pre-commit-update [OPTIONS]

  -d, --dry-run       Dry run only checks for the new versions without
  -a, --all-versions  Include the alpha/beta versions when updating
  -v, --verbose       Display the complete output
  -e, --exclude TEXT  Exclude specific repo(s) by the `repo` url trim
  -k, --keep TEXT     Keep the version of specific repo(s) by the `repo` url trim (still checks for the new versions)
  -h, --help          Show this message and exit.

If you want to just check for updates (without updating pre-commit-config.yaml), for example, you would use:

pre-commit-update -d
pre-commit-update --dry-run

NOTE: If you are to use the exclude or keep options, please pass the repo url trim as a parameter. Keep in mind that if you have multiple hooks (id's) configured for a single repo and you exclude that repo, NONE of the hooks will be updated, whole repo will be excluded.

Example of repo url trim: -> black (you will only pass black as a parameter to exclude or keep)

Pipeline usage example

GitLab job:

  stage: update
    # install git if not present in the image
    - pip install pre-commit-update
    - pre-commit-update --dry-run
    - main
  when: manual
  allow_failure: true

NOTE: This is just an example, feel free to do your own configuration

pre-commit hook usage example

You can also use pre-commit-update as a hook in your pre-commit hooks:

- repo:
  rev: v0.0.9
    - id: pre-commit-update
      args: [--dry-run --exclude black --keep isort]

pyproject.toml usage example

You can configure pre-commit-update in your pyproject.toml as below (feel free to do your own configuration):

dry_run = true
all_versions = false
verbose = true
exclude = ["isort"]
keep = ["black"]

NOTE: If some of the options are missing (for example exclude option), pre-commit-update will use default value for that option (default for exclude option would be an empty list).

IMPORTANT If you invoke pre-commit-update with any flags (e.g. pre-commit-update -d), pyproject.toml configuration will be ignored. If you configure pre-commit-update via pyproject.toml you should only run pre-commit-update (without any flags / arguments).

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