protected branches (git hook)

pre-commit

#!/bin/bash
protected_branches=( production master )

current_branch=$(git symbolic-ref HEAD | sed -e 's,.*/\(.*\),\1,')

for i in "${protected_branches[@]}"
do

protected_branch=$i

if [ $protected_branch = $current_branch ]
then
    read -p "You're about to push a protected branch, is that what you intended? [y|n] " -n 1 -r < /dev/tty
    echo
    if echo $REPLY | grep -E '^[Yy]$' > /dev/null
    then
        exit 0 # push will execute
    fi
    exit 1 # push will not execute
else
    exit 0 # push will execute
fi

1. Enable git templates:
   git config --global init.templatedir '~/.git-templates'

This tells git to copy everything in ~/.git-templates to your per-project .git/ directory when you run git init

2. Create a directory to hold the global hooks:
   mkdir -p ~/.git-templates/hooks

3. Write your hooks in ~/.git-templates/hooks.
   For example, here's a post-commit hook (located in ~/.git-templates/hooks/post-commit):

#!/bin/sh

Copy last commit hash to clipboard on commit

git log -1 --format=format:%h | pbcopy

Add other post-commit hooks

4. Make sure the hook is executable.
   chmod a+x ~/.git-templates/hooks/post-commit

5. Re-initialize git in each existing repo you'd like to use this in:
   git init

NOTE if you already have a hook defined in your local git repo, this will not overwrite it.

https://coderwall.com/p/jp7d5q/create-a-global-git-commit-hook