I’m a big fan of having a consistent style in my code. It greatly increases the readability of the code, thereby reducing mental compilation time. By reducing mental compilation time we are actually increasing developer efficiency.

Maintaining a consistent style without the help of a syntax-checker/style-linter can be tedious, and draws your focus away from the code. You begin to think about things like: “What is the proper style for this? Will this actually compile?” You may end up Googling for an answer or attempt to run your code manually. Both of these I consider to be unneccesary context switches, as they disturb your focus on the actual code.

Enter Syntastic.

Syntastic will automatically check your code as you are writing it. It is a feature found in most IDEs, but does not come with Vanilla VIM. Sadly, I see many new VIMmers who are unaware this even exists!

Installation

  1. Toss this in your ~/.vimrc:

```vim “ Install the plugin (if you are using Vundle) Plugin ‘scrooloose/syntastic’

” Mark syntax errors with :signs let g:syntastic_enable_signs=1

” Do not automatically jump to the error when saving the file “ Jump feature is annoying to me as it automatically moves the cursor let g:syntastic_auto_jump=0

” Show the error list automatically “ Allows you to easily navigate the quick fix list let g:syntastic_auto_loc_list=1

” This is where the magic happens. Chain together different style checkers “ in order to check for both style flaws and syntax errors. “ Syntax checkers: https://github.com/scrooloose/syntastic/wiki/Syntax-Checkers let g:syntastic_ruby_checkers=[‘rubocop’, ‘mri’] let g:syntastic_python_checkers=[‘pep8’, ‘pylint’, ‘python’] let g:syntastic_javascript_checkers=[‘jshint’] let g:syntastic_scala_checkers=[‘scalac’, ‘scalastyle’] ```

  1. Now, in order to use some of these style checkers, you need to install the packages to make them work. Given my ~/.vimrc, I would run this command:

bash $ gem install rubocop $ pip install pylint pep8 $ npm install -g jshint $ brew install scalastyle

You are ready to go. I will leave it as an exercise to the reader to configure their style linters to enforce the style they prefer. I have a few set already in my Dotfiles if you are interested.