How good are Git Hooks?
Hector de Isidro Aug 1 Updated on Aug 03, 2018
I’ve tried them and the answer will shock you
As developers we use Git (or at least we should) an uncountable number of times
a day¹ so, because not all of us are machines yet, we can sometimes make a mistake as the result of the rush (i.e pushing a commit to master when it should go to dev). To try to cut down these kinds of slips we have Git Hooks’ help.
What are Git Hooks?
Git Hooks are extensionless executable scripts² you can place in your repository’s hooks folder (by default .git/hooks)³ to trigger actions at certain points in Git’s execution. In other words: we can automate what we always want to happen before/after using a
There is a huge list of hook types⁴ you can attach⁵ scripts to but here we will see just a few.
Tip: they can always be bypassed adding the
I hope the code snippets attached below are self-explanatory.
As a good practice we could run our tests at this point as well 😉
Sharing hooks with our lovely team
As the default hooks folder belongs to
.git folder which isn’t versioned we can use one of these strategies depending on our Git version⁶ to share hooks among our team members:
- version 2.9 or greater:
Tip: you can apply this configuration to all current (and future) repositories adding the
- earlier version than 2.9:
Said that, you can use this script I’ve created for lazy people like me:
Another additional benefit of using a different folder than the default one is that we can keep them updated
Introducing Git Hooks⁷ repository
In order to be able to run multiple hooks within each type avoiding the creation of a huge and cumbersome single script loaded of comments, I have created a public repository which offers a new structure to store our hooks: each type of hook (i.e.
pre-commit) launches the scripts we have stored in its corresponding subfolder (i.e
To disable or enable a hook you can use the
git-hooks-state.shscript (which basically is a
chmodalias that changes their executable permission depending on the new state indicated)
I wish I didn’t have to say it but PRs are very welcome.
PS: you will have a lot more spare time to configure your hooks if you start using LolaMarket to shop for groceries 😄
This article was originally published on Medium
 Remember, commit early and often.
chmod +x script.sh from terminal to make a script executable
 Every Git repository has a hooks folder which contains some disabled sample hook files but IMHO they are pretty useless 🔥. You can checkout the latest version here
 They are usually categorized into two main types: client side and server side
 It supports any scripting language that your system knows how to execute
git --version to find out your current version of Git
 Great naming, isn’t it? 😞