myshellconfig/PS1

# /etc/profile.d/PS1.sh: executed by Bourne-compatible login shells.

parse_git_branch() {
    # local git-branch
    local LBRANCH="$(git branch 2>/dev/null | sed -ne 's/* \(.*\)/ \1/p'|sed -e 's/^[[:blank:]]*//;s/[[:blank:]]*$//')"
    # remote git-branch
    local RBRANCH="$( git rev-parse --symbolic-full-name --abbrev-ref @{u} 2>/dev/null |sed -e 's/^[[:blank:]]*//' )"
    # unset RBRANCH if it is empty
    [ -z "${RBRANCH-x}" ] && unset RBRANCH
    local BRANCH="${LBRANCH}${RBRANCH+ -> }${RBRANCH}"
    [ -z "${BRANCH-x}" ] || echo "($BRANCH)"|tr -s '()'
    return 0
}

set_label() {
    local LABEL=""

    # Labels: remote, tmpconfig, screen...
    if [ ! -z ${SSH_TTY:+x} ]; then 
        LABEL="${LABEL} ${On_IRed}${BLBlack}remote${Color_Off}"
    fi
    if ${SSHS-false} ; then 
        LABEL="${LABEL} ${On_White}${BBlack}tmpconfig${Color_Off}"
    fi
    echo -e "${LABEL}"
}

if [ -x "/usr/bin/getsyssubvol" ]; then
    if [ "$(/usr/bin/getsyssubvol /)" = "/" ] ; then
        SYSSUBVOL=""
    else
        SYSSUBVOL="[$(/usr/bin/getsyssubvol /)]"
    fi
else
    SYSSUBVOL=""
fi

# Reset
Color_Off='\e[0m'       # Text Reset

# Regular Colors
Black='\e[0;30m'        # Black
Red='\e[0;31m'          # Red
Green='\e[0;32m'        # Green
Yellow='\e[0;33m'       # Yellow
Blue='\e[0;34m'         # Blue
Purple='\e[0;35m'       # Purple
Cyan='\e[0;36m'         # Cyan
White='\e[0;37m'        # White

# Bold
BBlack='\e[1;30m'       # Black
BRed='\e[1;31m'         # Red
BGreen='\e[1;32m'       # Green
BYellow='\e[1;33m'      # Yellow
BBlue='\e[1;34m'        # Blue
BPurple='\e[1;35m'      # Purple
BCyan='\e[1;36m'        # Cyan
BWhite='\e[1;37m'       # White

# Underline
UBlack='\e[4;30m'       # Black
URed='\e[4;31m'         # Red
UGreen='\e[4;32m'       # Green
UYellow='\e[4;33m'      # Yellow
UBlue='\e[4;34m'        # Blue
UPurple='\e[4;35m'      # Purple
UCyan='\e[4;36m'        # Cyan
UWhite='\e[4;37m'       # White

# Blinking 
BLBlack='\e[5;30m'       # Black
BLRed='\e[5;31m'         # Red
BLGreen='\e[5;32m'       # Green
BLYellow='\e[5;33m'      # Yellow
BLBlue='\e[5;34m'        # Blue
BLPurple='\e[5;35m'      # Purple
BLCyan='\e[5;36m'        # Cyan
BLWhite='\e[5;37m'       # White

# Background
On_Black='\e[40m'       # Black
On_Red='\e[41m'         # Red
On_Green='\e[42m'       # Green
On_Yellow='\e[43m'      # Yellow
On_Blue='\e[44m'        # Blue
On_Purple='\e[45m'      # Purple
On_Cyan='\e[46m'        # Cyan
On_White='\e[47m'       # White

# High Intensity
IBlack='\e[0;90m'       # Black
IRed='\e[0;91m'         # Red
IGreen='\e[0;92m'       # Green
IYellow='\e[0;93m'      # Yellow
IBlue='\e[0;94m'        # Blue
IPurple='\e[0;95m'      # Purple
ICyan='\e[0;96m'        # Cyan
IWhite='\e[0;97m'       # White

# Bold High Intensity
BIBlack='\e[1;90m'      # Black
BIRed='\e[1;91m'        # Red
BIGreen='\e[1;92m'      # Green
BIYellow='\e[1;93m'     # Yellow
BIBlue='\e[1;94m'       # Blue
BIPurple='\e[1;95m'     # Purple
BICyan='\e[1;96m'       # Cyan
BIWhite='\e[1;97m'      # White

# High Intensity backgrounds
On_IBlack='\e[0;100m'   # Black
On_IRed='\e[0;101m'     # Red
On_IGreen='\e[0;102m'   # Green
On_IYellow='\e[0;103m'  # Yellow
On_IBlue='\e[0;104m'    # Blue
On_IPurple='\e[0;105m'  # Purple
On_ICyan='\e[0;106m'    # Cyan
On_IWhite='\e[0;107m'   # White

#LABEL=""
case "$TERM" in
    xterm*|rxvt*|screen*)
        case "$TERM" in
            screen*) SCREEN="(SCREEN) ";;
                *) SCREEN="";;
        esac
        RETVAL0="\342\234\223"
        RETVALN0="\342\234\227 "
        ;;
    *)
        RETVAL0=":)"
        RETVALN0=":("
        ;;
esac

# Base prompt
if [ "`id -u`" -eq 0 ]; then
   PS1="\[$BRed\]${SCREEN}${SYSSUBVOL}\u@\h \[$BRed\]\[\e[m\]\[$IPurple\](\A)\[\e[m\]\$(set_label)\n\[$BRed\]${SYSSUBVOL}\w:\$(parse_git_branch) \[\e[m\]\[$BRed\]# "
else
   PS1="\[$BIBlue\]${SCREEN}${SYSSUBVOL}\u@\h \[$BIBlue\]\[\e[m\]\[$IPurple\](\A)\[\e[m\]\$(set_label)\n\[$BIBlue\]${SYSSUBVOL}\w:\$(parse_git_branch) \[\e[m\]\[$BIBlue\]\$ "
fi

PS1="( \$? \$(if [[ \$? == 0 ]]; then echo \"\[$Green\]${RETVAL0}\"; else echo \"\[$Red\]${RETVALN0}\"; fi  )\[\e[m\]) ${PS1}\[\e[m\]"


#trap 'echo -ne "\e[0m"' DEBUG