.shrc-prompt

# -*- sh -*-

# ~/.bash_prompt: executed by bashrc

# some intelligent method to set the prompt
prompt_command () {
    RET=$?
    if [ $RET -eq 0 ]; then # set an error string for the prompt, if applicable
        ERRPROMPT=""
    else
        ERRPROMPT='($RET) '
    fi

    if [ "\$(type -t __git_ps1)" ]; then # if we're in a Git repo, show current branch
        BRANCH=" \$(__git_ps1 '(%s) ')"
    fi

    # setup preferences
    local TIME=`fmt_time` # format time for prompt string
    local LOAD=`uptime|awk '{min=NF-2;print $min}'`
    # set the titlebar to the last 2 fields of pwd
    local TITLEBAR='\[\e]2;`pwdtail`\a\]'

    # colors
    local GREEN="\e[0;32m"
    local DKGREEN="\e[1;32m"
    local CYAN="\e[0;36m"
    local DKCYAN="\e[1;36m"
    local BLUE="\e[0;34m"
    local DKBLUE="\e[1;34m"
    local GRAY="\e[0;37m"
    local DKGRAY="\e[1;30m"
    local WHITE="\e[1;37m"
    local RED="\e[0;31m"
    local DKRED="\e[1;31m"

    # return color to Terminal setting for text color
    local DEFAULT="\e[0;39m"
    # delete ${TITLEBAR} because it doesn't work inside the shell emacs or in the tty screen
    export PS1="\n╭─${DKBLUE}\u${DKBLUE}@${DKBLUE}\
\h${DKCYAN}(${LOAD}) ${WHITE}${TIME} ${DKRED}$ERRPROMPT${DKBLUE}\
\w${DKGREEN}${BRANCH}${DEFAULT}\n╰─➤ ${DKBLUE} ${DEFAULT}"
    export PS2=" ─➤ "
}

# Format time just the way I likes it
fmt_time () {
    date +"%H:%M:%S"
}

# Returns the last 2 fields of the working directory
pwdtail () {
    pwd|awk -F/ '{nlast = NF -1;print $nlast"/"$NF}'
}

# Gets the current 1m avg CPU load
chkload () {
    local CURRLOAD=`uptime|awk '{print $8}'`
    if [ "$CURRLOAD" -gt "1" ]; then
        local OUTP="HIGH"
    elif [ "$CURRLOAD" -lt "1" ]; then
        local OUTP="NORMAL"
    else
        local OUTP="UNKNOWN"
    fi
    echo $CURRLOAD
}

PROMPT_COMMAND=prompt_command