Show fuller path in fish prompt.

dot.config/fish/config.fish

+function prompt_pwd_full
+	set -q fish_prompt_pwd_dir_length; or set -l fish_prompt_pwd_dir_length 1
+
+	if [ $fish_prompt_pwd_dir_length -eq 0 ]
+		set -l fish_prompt_pwd_dir_length 99999
+	end
+
+	set -l realhome ~
+	echo $PWD | sed -e "s|^$realhome|~|" -e 's-\([^/.]{'"$fish_prompt_pwd_dir_length"'}\)[^/]*/-\1/-g'
+end
+
 function fish_prompt -d "Write out the prompt"
-	printf '\n%s%s%s%s@%s:%s%s%s\n> ' (set_color normal) (set_color --bold) (whoami) (set_color normal) (hostname) (set_color --bold --background blue white) (prompt_pwd) (set_color normal)
+	printf '\n%s%s%s%s@%s:%s%s%s\n> ' (set_color normal) (set_color --bold) (whoami) (set_color normal) (hostname) (set_color --bold --background blue white) (prompt_pwd_full) (set_color normal)
 end
 
 export LC_ALL=C