Update function for dotfiles/env

gistfile1.sh

function update () {
    function submod_push () {
        CHANGE_LIST=("${(@f)$(git status --porcelain)}")
        if [ $? -eq 0 ]; then
                # command ran fine..continue
                if [ ${CHANGE_LIST[1]} ]; then
                    echo -en " ${txtyellow}*${reset} ${txtlitepurple}The following changes exist:${reset}\n"
                    for change in ${CHANGE_LIST[@]}; do
                        echo -en "   ${txtyellow}*${reset} ${txtlitegray}${change}${reset}\n"
                    done
                    git commit -am '[auto] Update function submodule check' && \
                        git push origin master && \
                        echo -en " ${txtyellow}*${reset} ${bldgreen}Changes successfully committed!${reset}\n" && \
                        return 0
                else
                    echo -en " ${txtyellow}*${reset}${txtcyan} No submodule changes exist...${reset}\n"
                    return 0
                fi
        else
            echo -en "${bldred}There was a problem checking for changes...halting!${reset}\n"
            return 1
        fi
    }
    cur="$(pwd)" && \
        cd ~/env && \
        echo -en "${txtcyan}Pulling in HEAD...${reset}\n" && \
        git fetch origin && \
        git reset --hard origin/master && \
        git clean -dff && \
        echo -en "${txtcyan}Checking submodules...${reset}\n" && \
        git submodule update --init --recursive && \
        git submodule status && \
        #echo -en "${txtcyan}Cleaning...${reset}\n" && \
        #git clean -dff && \
        # Note we use a -x on git clean since our submodules should never have artifacts
        #git submodule foreach 'git clean -dffx' && \
        echo -en "${txtcyan}Pulling in HEAD for each submodule...${reset}\n" && \
        ### -> The following line was the 1st way I was updating submods but it doesn't work on older git versions.
        #git submodule update --remote && \ ## Sadly, we cant use this, seems to be Git 1.8+ only! 12.04 has 1.7.x :(
        ### ->  The following two lines were the 2nd way I updated the submodules
        #git submodule foreach 'git fetch' && \
        #git submodule foreach 'git merge origin/master' && \
        ### -> The following three lines are the current way we update submodules, just like our main repo, negating any changes to anything since we dont care.
        ### --> Also, git clean is run again since a normal git clean doesn't recurse into submods.
        git submodule foreach 'git fetch origin' && \
        git submodule foreach 'git reset --hard origin/master' && \
        git submodule foreach 'git clean -dffx' && \
        submod_push && \
        echo -en "${txtcyan}Assessing symlinks...${reset}\n" && \
        ./setup.sh mklink && \
        cd "$cur" && \
        cur='' && \
        echo -en "${txtcyan}Ensuring permissions...${reset}\n" && \
        chmod 600 $ENV_ROOT/.ssh/id_rsa* && \
        echo -en "${bldgreen}Done! ${txtcyan}Sourcing rc file...${reset}\n" && \
        source $HOME/.zshrc
}