Is there a way to configure git repository to reject 'git push --force'?

Setting the configuration variables:

receive.denyNonFastForwardsreceive.denyDeletes

will prevent any 'forced' pushes from working across all branches.

If you want finer pre-branch control then you will have to use a 'hook' on the remote repository, probably the 'update' hook.

There is a sample update hook called 'update-paranoid' that probably does what you need (and more) in the git distribution in the 'contrib' folder.

gitweb link

Github has already introduced the concept of protected branches!

It can be found under Settings -> Branches -> Protected Branches. Feature is now available for all users - not only enterprise!

This "protection" can be enabled for any branch, and for any user, including admins.

More details here - https://help.github.com/articles/defining-the-mergeability-of-pull-requests/

So no more hooks and arbitrary code is needed.

I wrote this quick update hook to prevent non-fast-forward updates (pushes) on the "dev" branch in a repository:

#!/bin/shREFNAME=$1OLDSHA=$2NEWSHA=$3if [ "refs/heads/dev" != $REFNAME ]; then  exit 0fiMERGEBASE=$(git merge-base $OLDSHA $NEWSHA)if [ $OLDSHA = $MERGEBASE ]; then  exit 0fiecho "Not a fast-forward on branch dev"exit 1