git-branching.sh

# helpers
function branchExists(){ git show-ref --verify --quiet refs/heads/"$1"; }
function currentBranch(){ git rev-parse --abbrev-ref HEAD; }
function isCurrentBranch() { [ "$(currentBranch)" == "$1" ]; }

# colors
Color_Off='\e[0m'       # Text Reset
BWhite='\e[1;37m'       # White
Red='\e[0;31m'          # Red
function whitePrompt(){ echo -en "${BWhite}$@${Color_Off}"; read value; }
function whiteEcho(){ echo -e "${BWhite}$@${Color_Off}"; }·
function redEcho(){ echo -e "${Red}$@${Color_Off}"; }

function gib()
{
    # Usage:
    # gib               list branches
    # gib <branch>      switch to branch or create if not exists
    # gib <branch> !    delete branch

    branch="$1"
    optParam="$2"

    if [ -z $branch ]; then
        whiteEcho "/ usage: gib [branch] [!]"
        whiteEcho "\-------------------------/"
        git branch --all --color
    elif ! branchExists $branch; then
        redEcho "Branch $branch does not exist."
        whitePrompt "Want to create it? <RET>"
        git checkout -b $branch
    elif [ "$optParam" == "!" ]; then

        if isCurrentBranch $branch; then
            redEcho "Can not delete branch you are currently on."
            whitePrompt "Switch to branch master and delete '$branch'?"
            git checkout master
        else
            whitePrompt "Delete branch '$branch'? <RET>"
        fi
        git branch -d $branch
    else
        git checkout $branch
    fi
}