sk- / git-lint

improving source code one step at a time
Apache License 2.0
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DEPRECATED

Unfortunately I've decided to deprecate this package.

Git-Lint

.. image:: https://badge.fury.io/py/git-lint.svg :target: http://badge.fury.io/py/git-lint

.. image:: https://travis-ci.org/sk-/git-lint.svg?branch=master :target: https://travis-ci.org/sk-/git-lint

.. image:: https://coveralls.io/repos/sk-/git-lint/badge.svg?branch=master :target: https://coveralls.io/r/sk-/git-lint?branch=master

Git-lint is a tool for improving source code one step at a time.

Motivation

Often times enforcing coding styles to an existing project can be a nightmare. Some reasons may include:

Features

This tool tackles all the 3 problems mentioned above by providing just a single tool that lints all the modified files. For each filetype it may use even more than one linter or tool. Furthermore by default it only report problems of lines that were added or modified.

Current linters:

Example use

Below is the simplest call, for a detailed list, see the help::

$ git lint Linting file: src/html/main.js Line 13, E:0110: Line too long (328 characters). Line 31, E:0001: Extra space at end of line src/html/main.js: line 75, col 11, ['location'] is better written in dot notation.

Linting file: src/html/main.css src/html/main.css: line 1, col 135, Warning - Duplicate property 'margin' found.

Linting file: api.py api.py:6: [C0301(line-too-long), ] Line too long (87/80) api.py:6: [R0913(too-many-arguments), callMethod] Too many arguments (6/5) api.py:6: [C0103(invalid-name), callMethod] Invalid function name "callMethod"

By default git lint only reports problems with the modified lines (with the exception of some linters that check that the whole file is sound). To force displaying all the output from the linters use the -f option.

Installation

You can install, upgrade or uninstall git-lint with these commands::

$ pip install git-lint $ pip install --upgrade git-lint $ pip uninstall git-lint

Configuration

Git-lint comes with a default configuration that includes all the linters listed above. If you don't like that list you can write your own configuration and put it in a file called .gitlint.yaml in the root of your repository. You can copy the file https://github.com/sk-/git-lint/blob/master/gitlint/configs/config.yaml to your repo and modify it.

If you add a new linter or add a new flag to any of the commands, please share that with us, so we can integrate those changes.

The configuration support two variables for the command, requirements and arguments:

If you need to include strings like {} or {foo} in your command, you need to double the braces as in {{}} or {{foo}}.

Git Configuration

git-lint comes with a pre-commit hook for git. To install it for your repo execute::

$ ln -s which pre-commit.git-lint.sh $PATH_TO_YOUR_REPO/.git/hooks/pre-commit

or if you want to install it globally execute instead::

$ ln -s which pre-commit.git-lint.sh /usr/share/git-core/templates/hooks/pre-commit

Mercurial Configuration

To make available git-lint with a better name in mercurial you have to add the following to your .hgrc configuration::

[alias] lint = !git-lint $@

To add a pre-commit hook add the following::

[hooks] pretxncommit.hglint = pre-commit.hg-lint.sh > tty

The hook above has a hack to display the output of the command. Additionally, as mercurial does not provide (AFAIK) any way to skip a hook, if you want to force a commit with linter warnings execute the commit command as follow::

$ NO_VERIFY=1 hg commit ...

Note though that mercurial heavily uses commit to leverage all of their commands/extensions. I've found that setting any sort of precommit hook will get on your way when using common actions as rebase or shelve.

Travis Configuration

To run git lint on Travis, you can add the following step::

git reset --soft ${TRAVIS_COMMIT_RANGE%...*} && git lint

Limitations

In some cases a change will trigger a warning in another line. Those cases are unfortunately not handled by git-lint, as it only reports those lines that were modified. Fully supporting this use case would require running the linters twice and reporting only the new lines. The most common case in which this occurs is with unused imports or variables. Let's say we have the following piece of code::

import foo foo.bar()

If you remove the second line, git-lint will not complain as the warning is for line 1, which was not modified.

Python Versions

Python 2.7 and Python 3.5 and higher are supported.

Development

Help for this project is more than welcomed, so feel free to create an issue or to send a pull request via http://github.com/sk-/git-lint.

Tests are run using nose, either with::

$ python setup.py nosetests $ nosetests

This same tool is run for every commit, so errors and style problems are caught early.

Adding a linter

Just need to configure the file gitlint/config.yaml. I hope the syntax is self explanatory. (Note to myself: don't be so lazy and write a proper doc for this.)

TODOS and Possible Features

Contributors

Changelog

v0.1.2 (2018-05-24)

v0.1.1 (2018-05-15)

v0.1.0 (2018-02-26)

v0.0.9 (2018-01-22)

v0.0.8 (2015-10-14)

v0.0.7 (2015-06-28)

v0.0.6 (2014-09-08)

v0.0.5 (2014-05-09)

v0.0.4 (2014-05-08)

v0.0.3 (2014-02-02)

v0.0.2 (2013-10-20)

v0.0.1 (2013-10-20)