config/fish/functions/fish_prompt.fish

#!/bin/fish

set PROMPTDIRS "~":$HOME

#
# This function takes the $PROMPTDIRS variable and tries to shorten the
# input (i.e. $argv[1]) w.r.t. the variable.
#
# e.g. If $PROMPTDIRS contains the pair $PR:$HOME/Projects,
#
#     (prompt_abbr ~/Projects/Applications)
#
# will show "$PR/Applications", and ~/Projects will be converted to $PR.
#
# To set multiple $PROMPTDIRS entry, use successive (where $ABBR is some
# directory to be abbreviated)
#
#     set PROMPTDIRS \$ABBR:$ABBR $PROMPTDIRS
#
# with the outermost directory being set first.
#
function prompt_abbr
	set in $argv[1]

	for d in $PROMPTDIRS
		set -l kv (string split -m 1 ":" $d)

		switch "$in"
		case "$kv[2]/*"
			set in (string replace $kv[2] $kv[1] $in)
			break
		case "$kv[2]"
			set in "$kv[1]"
			break
		case "*"
		end
	end
	echo "$in"
end

function fish_prompt
#	set_color white
#	echo -n '['

	set -l FishStatusCodeCache $status

	set_color -o 00FF00
	echo -n (whoami)

	set_color normal
	echo -n '@'

	set_color AFD75F
	echo -n (prompt_hostname)

	set_color white
	echo -n ':'

	set_color 8787FF
	echo -n (prompt_abbr $PWD)

	set_color 5F87D7
	echo -n (__fish_vcs_prompt)

	if test $FishStatusCodeCache -eq 0
		#set_color 18C412
	else
		set_color E84505
		echo -n " [$FishStatusCodeCache]"
	end

#	set_color white
#	echo -n "]"

	set_color -o white
	echo -n "> "
	set_color normal
end