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.files/.prompt

186 lines
4.6 KiB

#!/bin/bash
# shebang for syntax highlighting purposes
# Colors
_NON="\[\033[0m\]"
_BLD="\[\033[1m\]" # YEP BALD
_BLK="\[\033[30m\]"
_RED="\[\033[31m\]"
_GRN="\[\033[32m\]"
_YLW="\[\033[33m\]"
_BLU="\[\033[34m\]"
_PRP="\[\033[35m\]"
_CYN="\[\033[36m\]"
_WHT="\[\033[37m\]"
__debug_trap() {
# Set necessary pre-command variables (PROMPT_COMMAND is a
# command so its excluded here)
if [[ "$BASH_COMMAND" != "$PROMPT_COMMAND"
&& "$LAST_BASH_COMMAND" == "$PROMPT_COMMAND" ]]; then
INC_TIME=1
LAST_RT="$EPOCHREALTIME" # This should be the last thing done in this function
fi
LAST_BASH_COMMAND="$BASH_COMMAND"
}
trap '__debug_trap' DEBUG
__get_cmd_time() {
# Set hours minutes seconds and remove preceding zeros
local YEAR
local DAYS
local HOUR
local MINS
local SECS
((YEAR=10#$(($(TZ=UTC printf '%(%Y)T' "$CMD_TIME")))-1970))
((DAYS=10#$(TZ=UTC printf '%(%j)T' "$CMD_TIME")))
((HOUR=10#$(TZ=UTC printf '%(%H)T' "$CMD_TIME")))
((MINS=10#$(TZ=UTC printf '%(%M)T' "$CMD_TIME")))
((SECS=10#$(TZ=UTC printf '%(%S)T' "$CMD_TIME")))
# Choose whether or not to print hours minutes and seconds
[[ $CMD_TIME -ge 31536000 ]] && printf '%sy ' "${YEAR}"
[[ $CMD_TIME -ge 86400 ]] && printf '%sd ' "${DAYS}"
[[ $CMD_TIME -ge 3600 ]] && printf '%sh ' "${HOUR}"
[[ $CMD_TIME -ge 60 ]] && printf '%sm ' "${MINS}"
[[ $CMD_TIME -ge 1 ]] && printf '%ss ' "${SECS}"
# If you want to have a limit uncomment the next line and replace somenum with
# the minimum microseconds
# [[ $CMD_US -ge somenum ]] &&
printf '%sμs' "${CMD_US:-0}"
}
__sig() {
# Giant switch case for getting the name of the signal (`kill -l`)
local ITR=0
local RET
for RET in "$@"; do
if [[ $ITR != 0 ]]; then
printf '%s|%s' "$_WHT" "$_RED"
fi
((ITR++))
case $RET in
126): "ACCES" ;;
127): "NOENT" ;;
129): "HUP" ;;
130): "INT" ;;
131): "QUIT" ;;
132): "ILL" ;;
133): "TRAP" ;;
134): "ABRT" ;;
135): "BUS" ;;
136): "FPE" ;;
137): "KILL" ;;
138): "USR"1 ;;
139): "SEGV" ;;
140): "USR"2 ;;
141): "PIPE" ;;
142): "ALRM" ;;
143): "TERM" ;;
144): "STKFLT" ;;
145): "CHLD" ;;
146): "CONT" ;;
147): "STOP" ;;
148): "TSTP" ;;
149): "TTIN" ;;
150): "TTOU" ;;
151): "URG" ;;
152): "XCPU" ;;
153): "XFSZ" ;;
154): "VTALRM" ;;
155): "PROF" ;;
156): "WINCH" ;;
157): "IO" ;;
158): "PWR" ;;
159): "SYS" ;;
16[3-9]|1[7-8][0-9]|19[0-2]): "RT$((RET-128))" ;; # Savagery
*): "$RET" ;; # Print exit code if not in list
esac
printf '%s' "$_"
done
}
__ssh() {
local CON=($SSH_CONNECTION)
local SRV_IP="${CON[2]}"
[[ -z "$SRV_IP" ]] && return
local SRV_PORT="${CON[3]}"
# 4 chars from startand 4 chars from end
local SRV_IP_CUT="${_CYN}${SRV_IP}"
[[ ${#SRV_IP} -gt 8 ]] && local SRV_IP_CUT="${_CYN}${SRV_IP:0:4}${_WHT}*${_CYN}${SRV_IP: -4}"
printf '%s' "${_GRN}${_BLU}[${SRV_IP_CUT}${_PRP}${_BLD}:${_NON}${_CYN}${SRV_PORT}${_BLU}]${_NON}"
}
__prompt() {
# Get exit code (must be first)
local PLC=("${PIPESTATUS[@]}")
# Reset time when prompt was first displayed after command
# this contributes to the ~40 microsecond difference in $CMD_US and the actual time it took
if [[ "$INC_TIME" != 0 ]]; then
PROMPT_RT="$EPOCHREALTIME"
INC_TIME=0
fi
# *_RT may not be set
LAST_RT="${LAST_RT:-$EPOCHREALTIME}"
PROMPT_RT="${PROMPT_RT:-$EPOCHREALTIME}"
# Get relative times
# Remove decimal point, simulating multiplying by 1 million
PROMPT_RT1M="${PROMPT_RT/.}"
PROMPT_RT1M="${PROMPT_RT1M/,}"
LAST_RT1M="${LAST_RT/.}"
LAST_RT1M="${LAST_RT1M/,}"
((CMD_US=PROMPT_RT1M-LAST_RT1M))
CMD_TIME=0
# Divide by 1 million to get a more accurate difference
((CMD_TIME=CMD_US/1000000))
[[ ${#CMD_US} -lt 6 ]] || CMD_US="${CMD_US: -6}"
((CMD_US=10#$CMD_US))
# Set prompt sections
local SIG
local COL
local UHD
local TIME
local IND
# Text
# ssh detection and indicator
[[ "$SSH_CONNECTION" ]] && local SSH="$(__ssh) "
# [INT], [4], etc.
local RET
for RET in "${PLC[@]}"; do
if [[ $RET -gt 0 ]]; then
SIG="$(printf '%s[%s%s%s] ' "$_BLU" "$_RED" "$(__sig "${PLC[@]}")" "$_BLU")"
break
fi
done
# [user@homeserver:~]
COL="$([[ $UID == 0 ]] && printf '%s' "$_RED" || printf '%s' "$_YLW")"
UHD="${_BLD}${_BLU}[${COL}\u${_PRP}@${_CYN}\h${_PRP}:${_GRN}\w${_BLU}]"
# 2y 351d 12m 43s 382969μs
TIME="${_YLW}$(__get_cmd_time)"
# Random colored $ or #
_RAND256="\[\033[38;2;$((RANDOM%256));$((RANDOM%256));$((RANDOM%256))m\]"
IND="${_RAND256}\\$"
# Set the prompt
PS1="${_NON}${SSH}${SIG}${UHD} ${TIME} ${IND} ${_NON}"
}
PROMPT_COMMAND=__prompt