08 Oct 2009 - San Antonio
I’ve personally added a pre-commit hook to my local git repos. It’s like a personal CI before I push back to origin/master. I run my tests locally anyway before committing and pushing, so I thought I would automate it.<
I open the .git/hooks/pre-commit file in my local repo (i.e, full path is something like /Users/jasonmeridth/code/rails/myapp/.git/hooks/pre-commit) and put the following:<
#!/bin/sh rake db:migrate rake db:test:prepare rake
For non-rails developers, this will run any database migrations on my
The reason the last step above is “rake” is because I leave it to you to have your default rake task be “rake test:units” or “rake spec” depending on whether you are using a TestUnit framework or RSpec.
Git hooks are not made executable by default, except on Windows because it doesn’t understand the unix permissions. On my Mac, I have to issue the following command (from the app root):
chmod +x .git/hooks/pre-commit
This makes the pre-commit hook executable and Git will run it before every commit to this repo. If this process returns a non-zero value (failure), then the commit does not happen. I’ll be shown the failing tests and I can fix them and try to re-commit.