lint_diffs 0.1.0

Runs one or more linters, but only outputs errors if diffs have lint issues.

lint-diffs

lint-diffs is a simple command line tool for running an arbitrarty linter on a set of 'unified diffs'.

First you need some diffs, then you pipe it to lint-diffs:

git diff -U0 origin/master | lint-diffs

The default and only preconfigured tool for python is "pylint".

Configuration:

lint-diffs can read a config file from ~/.config/lint-diffs

Example:

[pylint]
always_report=E.*

[flake8]
extensions=.py

[rubocop]
extensions=.rb
command=rubocop app spec
regex=(?P<file>[^:]+):(?P<line>[^:]+):[^:]+: (?P<err>.: [^:]+)
always_report=(E.*|W.*)

In this example, a flake8 and pylint are run on every diff file ending in .py. Additionally a ruby linter has been added.

To add new linters:

• The linter has to report to stdout
• The linter has to have a regex that produces a full file path, a line number and an error class
• The line numbers and file paths have to match diff target file paths

Goals:

• Runs with good defaults for many people
• Should be easy to modify the config for new linters
• Should be easy to use with other vcs