skynet/shell/bashrc.d/04-prompt.sh

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RED=$(tput setaf 1)
GREEN=$(tput setaf 2)
YELLOW=$(tput setaf 3)
BLUE=$(tput setaf 4)
MAGENTA=$(tput setaf 5)
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GRAY=$(tput setaf 8)
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ITALIC=$(tput sitm)
RESET=$(tput sgr0)
format_command_time() {
local x="$1"
local ms="$((x % 1000))"
x="$((x / 1000))"
local sec="$((x % 60))"
x="$((x / 60))"
local min="$((x % 60))"
x="$((x / 60))"
local hour="$((x % 24))"
local day="$((x / 24))"
local timestr
if [ "$day" -gt 0 ]; then
timestr="${day}d "
fi
if [ "$hour" -gt 0 ]; then
timestr="$timestr${hour}h "
fi
if [ "$min" -gt 0 ]; then
timestr="$timestr${min}m "
fi
if [ "$sec" -gt 0 ]; then
timestr="$timestr${sec}s "
fi
timestr="$timestr${ms}ms"
printf '%s' "$timestr"
}
last_command_timer() {
last_command_start=${last_command_start:-$(date +%s%3N)}
}
set_prompt() {
if [ $? -eq 0 ]; then
prompt_color="$GREEN"
else
prompt_color="$RED"
fi
if [ -n "$last_command_start" ]; then
last_command_length=$(format_command_time "$(($(date +%s%3N) - last_command_start))")
unset last_command_start
last_command_stats="$ITALIC${MAGENTA}Completed in $last_command_length.$RESET\n"
else
last_command_stats=
fi
git_branch=$(git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/\1/')
if [ -n "$git_branch" ]; then
local git_status
git_status=$(git status --porcelain)
if [ -n "$git_status" ]; then
git_symbol=" $RED"
else
git_symbol=" $GREEN"
fi
else
git_symbol=
fi
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PS1="\n$last_command_stats\[$GRAY\]$(whoami)@$(hostname)\[$RESET\]\n\[$BLUE\]\w\[$RESET\]$git_symbol\[$YELLOW\]$git_branch\[$RESET\]\n\[$prompt_color\]\[$RESET\] "
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}
trap 'last_command_timer' DEBUG
PROMPT_COMMAND=set_prompt