Simple script to create topic branches

topic_branch.sh

#!/bin/sh

# Create automatic topic branches with your username or
# a specified name in .script_vars which has to be placed in
# $HOME directory
#
# .script_vars format
#
# usr=whatever
# from=whatever 
#


if [ -f $HOME/.script_vars ]; then
    . $HOME/.script_vars
else
    user=$(whoami)
    from="release"
fi

function check_git_repo() {
    if ! git ls-files >& /dev/null; then
        echo "You must be in a git repo!!!" && exit
    else
        git_topicb
    fi
}

function git_topicb() {
    read -p "Name of the branch to create: " t_branch
    
    #Make a git pull from origin branch and create
    #the topic branch from this repo

    git checkout $from && git pull
    wait
    git checkout -b "$user/$t_branch"
    wait

    #Check if branch created is the desired branch

    ck=`git rev-parse --abbrev-ref HEAD`

    if [ $ck == $user/$t_branch ]; then
        exit 0
    else
        echo "Something went wrong, sorry" && exit
    fi
}

#First perfom a check if this is a git repo and perform the branch
check_git_repo && git_topicb