Post-checkout git hook to auto-add a commit when new branch is created from ```develop```. Useful because ```reflog``` doesn't stay around forever, and we don't want to hold onto defunct feature branches until we are able to run reports. There is an existing flaw in this code, can you spot it?

post-checkout.sh

#! /bin/sh

from_hash=$1
to_hash=$2
checkout_type=$3
ignored=("develop" "staging" "production")
develop_hash=$(git rev-parse develop)
branch_name=$(git rev-parse --abbrev-ref HEAD)

containsElement () {
    local e
    for e in "${@:2}"; do [[ "$e" == "$1" ]] && return 0; done
    return 1
}

if [ $checkout_type -ne 1 ]
then
    exit 0 ; # Not a branch checkout
fi

if containsElement $branch_name "${ignored[@]}"
then
    exit 0 ; # Checked out an ignored branch
fi

if [ $to_hash != $develop_hash ]
then
    exit 0 ; # Must checkout branch at same commit as develop
fi

if [ $from_hash != $to_hash ]
then
    exit 0 ; # Not checking out a new branch
fi

# Create a commit
git commit --allow-empty -m "Created branch $branch_name"

looks interesting. I don't see a license in the repo, is the scripts free to use?
https://docs.github.com/en/repositories/managing-your-repositorys-settings-and-features/customizing-your-repository/licensing-a-repository#choosing-the-right-license