Install the gem
gem install git-trim-whitespace
Make sure you have all preliminaries installed. This includes flex, make, and cc.
Make a
.gitattributes
file in your project root with these contents:*.rb filter=trimWhitespace
This says every ruby file will go through the trimWhitespace filter. You could apply it to all files like this:
* filter=trimWhitespace
Define the filter:
$ git config filter.trimWhitespace.clean trim_whitespace
Every filter can be run at two different hooks: right after you pull, or right before you push. The smudge filter is for right after pulling and the clean filter is for right before pushing.
The above command creates a new filter called trimWhitespace
for the clean action - it runs
all code through the trim_whitespace
utility before pushing.
(Inspired by http://adit.io/posts/2013-08-16-five-useful-git-tips.html)