Lemming

Lemming is a tool for formatting and linting your code. With Lemming, everyone will use the same formatters and linters, with the same version.

Installation

Use the package manager pip to install Lemming. Need more help?

pip install python-lemming

Requirements

Lemming requires Python 3.11

Usage

1. Create the config

Lemming's config lives in these places:

• in the .lemming.toml file,
• in the .github/.lemming.toml file,
• in the pyproject.toml file,
• all of the above files in the parent directories, and in $XDG_CONFIG_HOME, and in $XDG_CONFIG_DIRS.

Please note, that there must be a lemming or tool.lemming key in the config file.

The config looks like this:

[[lemming.formatters]]
package = "example"  # REQUIRED, the package to run as `/path/to/python -m <package> <args>`
version = "1.2.3"  # OPTIONAL, defaults to the latest stable version
args = "--ignore=joe {path}"  # OPTIONAL, {path} will be replaced by the path passed to Lemming, or the current working directory by default
allow_nonzero = true  # OPTIONAL, only allowed for formatters. If true, the formatter is allowed to return a non-zero exit status. Defaults to false.
also_install = ["example-plugin"]  # OPTIONAL, these packages will also be installed
install_name = "python-example"  # OPTIONAL, the package to install. Defaults to the value of `package`

[[lemming.linters]]
# same as for formatters (except for `allow_nonzero`)

2. Run Lemming

After installing Lemming, run

lemming .

CLI usage

usage: lemming [-h] [-v] [-q] [-c CONFIG] [-V] path

Lemming is a tool for formatting and linting code.

positional arguments:
  path                  the paths (files and directories) to check. these arguments will be passed to the formatters and linters as arguments where {path} is used

options:
  -h, --help            show this help message and exit
  -v, --verbose         log more information
  -q, --quiet           log less information. can be passed multiple times
  -c CONFIG, --config CONFIG
                        the config file to use. if passed all other config files will be ignored
  -V, --version         print the program's version and exit

Support

Questions should be asked in the Discussions tab.

Feature requests and bug reports should be reported in the Issues tab.

Security vulnerabilities should be reported as described in our Security policy (in the SECURITY.md file).

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

Please make sure to add entries to the changelog.

For more information, please read the contributing guidelines.

Authors and acknowledgments

A list of nice people who helped this project can be found in the CONTRIBUTORS file.

License

GNU GPLv3+