git-pep8-commit-hook 0.1.0

Git commit hook that checks Python files with pep8.

git_pep8_commit_hook

Git pre-commit hook for checking coding style of Python code. The hook requires pep8. It will check files with the .py extension and files that contain #! (shebang) and python in the first line. Heavily inspired by and partly based on git-pylint-commit-hook by Sebastian Dahlgren.

Since pep8 itself, by default, looks for a setup.cfg file in the repository root directory, so does this script. The script works without the setup.cfg file. The options for the script can either be placed in the [pep8_pre_commit_hook] section of the configuration file or be passed as command line parameters. If the same option is specified in both the configuration file and the parameters, the configuration file takes precedence.

Installation

Install via PyPI

pip install git_pep8_commit_hook

Usage

Having installed the script, if you add it to your pre-commit file which should be placed in the hooks subfolder for the Git folder (usually .git/hooks), it will be called automatically when you run git commit. If you want to skip the checks for a certain commit, you can add the -n flag and run git commit -n.

Configuration

By default, the script looks for a setup.cfg in the root directory of your repository. If the script does not find a configuration file, it uses default settings. The file might look like this:

[pep8]
ignore = E226,E302,E41
max-line-length = 79

[pep8_pre_commit_hook]
max-violations-per-file = 5

The [pep8] section is used by pep8. The [pep8_pre_commit_hook] section is used by the commit hook script. You may specify the following options:

• pep8-command is for the actual command, for instance if pep8 is not installed globally, but is in a virtualenv inside the project itself.

• pep8-params lets you pass custom parameters to pep8

• max-violations-per-file lets you specify how many violations of the PEP 0008 standard you are willing to accept for any file. If at least one file has more than the specified number of violations, the commit will be blocked. The default value is 0.

Alternatively you can pass the above directly to the commit hook script as arguments. In addition to the above, you can also pass the following arguments to the script:

• config lets you specify an alternative config file for both pep8 itself and the commit hook script.

• version displays the current version of the commit hook script.

• help displays a help message explaining the arguments.

Running tests

The tests are written using pytest. You can run the tests without installing pytest and without installing the script by typing python runtests.py. Alternatively, you can install pytest by running pip install pytest. The script itself can be installed in development mode by running pip install -e . from the root directory of the repository. Then the tests can be run by executing py.test.

Requirements

This commit hook is written in Python and has the following requirements:

• pep8 (sudo pip install pep8)

• Python >= 2.7

Release notes

0.1.0 (2015-09-11)

• Initial release.