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dotfiles/apps/shell/fish/prompt.fish

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#!/usr/bin/env fish
# TODO: if root, background instead?
set MAX_PATH_PIECE_CHARS $BASH_PROMPT_MAX_PATH_PIECE_CHARS 3
# prompt rendering functions
function preprocess_pwd
test (pwd) = / && echo "/" && return 1
test (pwd) = $NICE_HOME && echo "~" && return 0
# with ellipsis
# echo "$(<<< "$p" cut -c2- | awk '{split($0,p,"/");for(k in p){if(k==length(p)){printf "/%s",p[k]}else{if(length(p[k])>'"
# $((MAX_PATH_PIECE_CHARS+1))"'){printf "/%.'"$((MAX_PATH_PIECE_CHARS))"'s…",p[k]}else{printf "/%s",p[k]}}}}')"
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# without ellipsis
echo (pwd) | cut -c2- | \
awk '{split($0,p,"/");for(k in p){if(k==length(p)){printf "/%s",p[k]}else{printf "/%.'$MAX_PATH_PIECE_CHARS[1]'s",p[k]}}}'
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end
function fish_prompt
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set last_cmd_status $status
if test (id -u) -eq 0
if test $last_cmd_status -eq 0
set_color -b blue black
else
set_color -b red black
end
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printf " SUDO $USER@$hostname "
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else
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if test $last_cmd_status -eq 0
set_color blue
else
set_color red
end
printf %s@%s $USER (echo $hostname | cut -d '.' -f1)
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end
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set_color normal
printf " "
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set_color magenta
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printf (preprocess_pwd)""
set_color normal
printf " "
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end
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function fish_mode_prompt; end
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# function fish_right_prompt
# set_color brblack
# switch $fish_bind_mode
# case default
# echo 'N'
# case insert
# echo 'I'
# case replace_one
# echo 'R'
# case replace
# echo 'R'
# case visual
# echo 'V'
# end
# end