bashrc-prompt.sh

# Append history
shopt -s histappend
#HISTCONTROL="ignorespace:ignoredups:erasedups"
HISTCONTROL=ignorespace:erasedups
HISTSIZE=100000
HISTFILESIZE=-1

CAA_AT_PROMPT=1
function __caa_before_command {
    if [ -z "$CAA_AT_PROMPT" ]; then
        return
    fi
    unset CAA_AT_PROMPT
    # TODO: better precision
    CAA_COMMAND_START_TIME="$SECONDS"
}
trap '__caa_before_command' DEBUG

if [[ "$TERM" == "" || $- != *i* ]]; then
    TERM_RESET=
    TERM_RED=
    TERM_GREEN=
    TERM_YELLOW=
    TERM_CYAN=
    TERM_WHITE=
    TERM_GRAY=
else
    TERM_RESET=$(tput sgr0)
    TERM_RED=$(tput setaf 1)
    TERM_GREEN=$(tput setaf 2)
    TERM_YELLOW=$(tput setaf 3)
    TERM_CYAN=$(tput setaf 6)
    TERM_WHITE=$(tput setaf 7)
    TERM_GRAY=$(tput setaf 8)
fi

function __caa_prompt_command {
    local EXIT="$?"
    CAA_AT_PROMPT=1
    local ELAPSED=$((SECONDS - CAA_COMMAND_START_TIME))

    history -a
    history -c
    history -r

    if [ "$EXIT" -ge "128" ]; then
        local SIG=$((EXIT - 128))
        if [ "$SIG" -ge "32" ]; then
            local SIGNAME="$SIG"
        else
            local SIGNAME="$SIG ($(kill -l $SIG))"
        fi
        echo "${TERM_RED}[Signal $SIGNAME]${TERM_RESET}"
    elif [ "$EXIT" != "0" ]; then
        if [ "$ELAPSED" -gt "5" ]; then
            echo "${TERM_RED}[Exit $EXIT in ${ELAPSED}s]${TERM_RESET}"
        else
            echo "${TERM_RED}[Exit $EXIT]${TERM_RESET}"
        fi
    elif [ "$ELAPSED" -gt "5" ]; then
        echo "${TERM_GREEN}[Success in ${ELAPSED}s]${TERM_RESET}"
    fi
}
PROMPT_COMMAND=__caa_prompt_command

# Check window size on every new prompt.
shopt -s checkwinsize