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# bash prompt
MY_BASH_PROMPT=smiley_prompt
# terminal title (current directory)
__prompt_term_title() { # __prompt_term_title TITLE...
printf '\033]0;%s\007\n' "$*"
}
__prompt_exit_code() { # __prompt_exit_code CODES...
# Each CODE is of the form N=STR. If the code doesn't match one of CODES,
# its number will be printed.
local ec=$?
for code; do
if ((ec == ${code%=*})); then
printf '%s\n' "${code#*=}"
return
elif ((ec == 0)) && [[ "${code%=*}" = ok ]]; then
printf '%s\n' "${code#*=}"
return
elif ((ec > 0)) && [[ "${code%=*}" = fail ]]; then
printf '%s\n' "${code#*=}"
return
fi
done
printf '%s\n' "$ec"
}
git_prompt_integration() {
# git bit
# see https://unix.stackexchange.com/questions/278206
possible_git_prompt_locations=(
/usr/share/git/git-prompt.sh # Arch, etc. (default?)
/usr/lib/git-core/git-sh-prompt # Debian, Ubuntu ...
/usr/share/git-core/contrib/completion/git-prompt.sh # Fedora ??
# I have yet to find Alpine's git prompt location.
)
for file in "${possible_git_prompt_locations[@]}"; do
if [[ -f "$file" ]]; then
source "$file" &&
PS1+='\[\e[35m\]$(__git_ps1) \[\e[0m\]'
break
fi
done
}
two_line_prompt() {
PS1=
# user, host, and cwd
PROMPT_DIRTRIM=3 # how many dirs above current to print (rest are '...')
PS1+='\[\e[0;46m\]\u@\h \w'
# newline
PS1+='\[\e[0m\]\n'
PS1+='\[\e[31m\]$(__prompt_exit_code 0=)\[\e[0m\]'
PS1+='\[$(__prompt_term_title "$USER@$(hostname): $PWD")\]'
# delimiter
PS1+='; '
}
smiley_prompt() {
__prompt_ec() { case $? in 0) echo '^_^' ;; *) echo ';_;' ;; esac }
PS1='\[\e[33m\]$(__prompt_exit_code "ok=^_^" "fail=;_;")'
PS1+=' \w\[\e[0m\]'
git_prompt_integration
PS1+='\[$(__prompt_term_title "$USER@$(hostname): $PWD")\]'
PS1+='\$ '
}
eval "$MY_BASH_PROMPT"
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