Git pre-push hook to confirm pushing to master

git_pre_push_hook_to_prevent_master_push_by_accident.md

Git pre-push hook

It will check if current branch is master, then ask a confirmation, in case of master branch

install

1. install a recent version of git (https://git-scm.com/download/mac) eg:

   $ brew install git
   $ echo 'alias git="/us/bin/local"' >> ~/.zshrc

2. create global git hooks directory

   $ mkdir ~/.githooks

3. save the pre-push script beneith in ~/.githooks/pre-push
4. make it executable: chmod +x ~/.githooks/pre-push
5. tell git how to find it:

   $ git config --global core.hooksPath /Users/Someone/.githooks/

example:

$ foo@somewhere something  > git push
You're about to push to master, is that what you intended? [y|n] n
error: failed to push some refs to 'github.com:someone/something.git'
$ foo@somewhere something  >

pre-push

#!/bin/bash

protected_branch='master'

if read local_ref local_sha remote_ref remote_sha; then
    if [[ "$remote_ref" == *"$protected_branch"* ]]; then
        echo -en "\033[1;33mYou're about to push to master, is that what you intended? [y|n] \033[0m"
        echo -en "\033[1m"
        read -n 1 -r < /dev/tty
        echo -en "\033[0m"

        echo
        if echo $REPLY | grep -E '^[Yy]$' > /dev/null; then
            exit 0 # push will execute
        fi
        exit 1 # push will not execute
    fi
fi

This is great. Thanks