Git hooks are scripts that run automatically whenever a particular event occurs in a Git repository. A Git hook lets you customize the internal behavior of Git and trigger actions at key points in your project’s development cycle.
Git hooks have several common uses, including:Encourage a commit policy. Modifying a project environment, Nepal WhatsApp Number List depending on the state of the repository. Implementation of continuous integration workflows.
Since Git hooks are highly , you can use them to automate or optimize virtually any aspect of your development workflow.
In this article, I’ll give you a quick overview of Git hooks and how they work. Next, I’ll show you some common Git hooks and definitions of what they do.
Introducing Git Hook
Just like many other version control systems, Git allows you to launch custom scripts when certain important actions occur in the repository. In turn, this makes them easy to install and configure.
There are two groups of hooks, client side and server side. Client-side hooks are triggered by operations such as commit and merge, while server-side hooks run on network operations such as receiving push commits.
How to undo changes in Git
This Git hook is the first script to run when handling a push from a client is pre-receive . It takes a list of references that are pushed from stdin; if it comes out non-zero, none of them are accepted. You can use this hook to do things like ensure that none of the updated references are fast forwarded. Also use it to control access to any references and files they modify with the push.
update : This Git hook is very similar to the pre- fetch script , except it’s run once for each branch the pusher tries to update. If the pusher tries to push to more than one branch, the prefetch only runs once, while the update runs once per branch they push to. Instead of reading from stdin, this script takes three arguments: the name of the ref (branch), the SHA-1 the ref was pointing to before the push, and the SHA-1 the user is trying to push. If the update script returns non-zero, only that reference is discarded; other references may still be updated.