[split] Move toaster theme to oh-my-fish/theme-toaster

https://github.com/oh-my-fish/theme-toaster

themes/toaster/README.md

-# Toaster
-
-A fish (shell) theme with a poptart cat and a rainbow that signifies git status.
-
-![Toaster in action](https://github.com/steeeve/toaster/raw/master/screenshot.png)

themes/toaster/fish_prompt.fish

-set __toaster_color_orange FD971F
-set __toaster_color_blue 6EC9DD
-set __toaster_color_green A6E22E
-set __toaster_color_yellow E6DB7E
-set __toaster_color_pink F92672
-set __toaster_color_grey 554F48
-set __toaster_color_white F1F1F1
-set __toaster_color_purple 9458FF
-set __toaster_color_lilac AE81FF
-
-function __toaster_color_echo
-  set_color $argv[1]
-  if test (count $argv) -eq 2
-    echo -n $argv[2]
-  end
-end
-
-function __toaster_current_folder
-  if test $PWD = '/'
-    echo -n '/'
-  else
-    echo -n $PWD | grep -o -E '[^\/]+$'
-  end
-end
-
-function __toaster_git_status_codes
-  echo (git status --porcelain ^/dev/null | sed -E 's/(^.{3}).*/\1/' | tr -d ' \n')
-end
-
-function __toaster_git_branch_name
-  echo (git rev-parse --abbrev-ref HEAD ^/dev/null)
-end
-
-function __toaster_rainbow
-  if echo $argv[1] | grep -q -e $argv[3]
-    __toaster_color_echo $argv[2] "彡ミ"
-  end
-end
-
-function __toaster_git_status_icons
-  set -l git_status (__toaster_git_status_codes)
-
-  __toaster_rainbow $git_status $__toaster_color_pink 'D'
-  __toaster_rainbow $git_status $__toaster_color_orange 'R'
-  __toaster_rainbow $git_status $__toaster_color_white 'C'
-  __toaster_rainbow $git_status $__toaster_color_green 'A'
-  __toaster_rainbow $git_status $__toaster_color_blue 'U'
-  __toaster_rainbow $git_status $__toaster_color_lilac 'M'
-  __toaster_rainbow $git_status $__toaster_color_grey '?'
-end
-
-function __toaster_git_status
-  # In git
-  if test -n (__toaster_git_branch_name)
-
-    __toaster_color_echo $__toaster_color_blue " git"
-    __toaster_color_echo $__toaster_color_white ":"(__toaster_git_branch_name)
-
-    if test -n (__toaster_git_status_codes)
-      __toaster_color_echo $__toaster_color_pink ' ●'
-      __toaster_color_echo $__toaster_color_white ' [^._.^]ﾉ'
-      __toaster_git_status_icons
-    else
-      __toaster_color_echo $__toaster_color_green ' ○'
-    end
-  end
-end
-
-function fish_prompt
-  __toaster_color_echo $__toaster_color_blue "# "
-  __toaster_color_echo $__toaster_color_purple (__toaster_current_folder)
-  __toaster_git_status
-  echo
-  __toaster_color_echo $__toaster_color_pink "\$ "
-end