michael@0: # This file must be used with "source bin/activate.fish" *from fish* (http://fishshell.com)
michael@0: # you cannot run it directly
michael@0: 
michael@0: function deactivate  -d "Exit virtualenv and return to normal shell environment"
michael@0:     # reset old environment variables
michael@0:     if test -n "$_OLD_VIRTUAL_PATH" 
michael@0:         set -gx PATH $_OLD_VIRTUAL_PATH
michael@0:         set -e _OLD_VIRTUAL_PATH
michael@0:     end
michael@0:     if test -n "$_OLD_VIRTUAL_PYTHONHOME"
michael@0:         set -gx PYTHONHOME $_OLD_VIRTUAL_PYTHONHOME
michael@0:         set -e _OLD_VIRTUAL_PYTHONHOME
michael@0:     end
michael@0:     
michael@0:     if test -n "$_OLD_FISH_PROMPT_OVERRIDE"
michael@0:         # set an empty local fish_function_path, so fish_prompt doesn't automatically reload
michael@0:         set -l fish_function_path
michael@0:         # erase the virtualenv's fish_prompt function, and restore the original
michael@0:         functions -e fish_prompt
michael@0:         functions -c _old_fish_prompt fish_prompt
michael@0:         functions -e _old_fish_prompt
michael@0:         set -e _OLD_FISH_PROMPT_OVERRIDE
michael@0:     end
michael@0:     
michael@0:     set -e VIRTUAL_ENV
michael@0:     if test "$argv[1]" != "nondestructive"
michael@0:         # Self destruct!
michael@0:         functions -e deactivate
michael@0:     end
michael@0: end
michael@0: 
michael@0: # unset irrelevant variables
michael@0: deactivate nondestructive
michael@0: 
michael@0: set -gx VIRTUAL_ENV "__VIRTUAL_ENV__"
michael@0: 
michael@0: set -gx _OLD_VIRTUAL_PATH $PATH
michael@0: set -gx PATH "$VIRTUAL_ENV/__BIN_NAME__" $PATH
michael@0: 
michael@0: # unset PYTHONHOME if set
michael@0: if set -q PYTHONHOME
michael@0:     set -gx _OLD_VIRTUAL_PYTHONHOME $PYTHONHOME
michael@0:     set -e PYTHONHOME
michael@0: end
michael@0: 
michael@0: if test -z "$VIRTUAL_ENV_DISABLE_PROMPT"
michael@0:     # fish uses a function instead of an env var to generate the prompt.
michael@0:     
michael@0:     # copy the current fish_prompt function as the function _old_fish_prompt
michael@0:     functions -c fish_prompt _old_fish_prompt
michael@0:     
michael@0:     # with the original prompt function copied, we can override with our own.
michael@0:     function fish_prompt
michael@0:         # Prompt override?
michael@0:         if test -n "__VIRTUAL_PROMPT__"
michael@0:             printf "%s%s" "__VIRTUAL_PROMPT__" (set_color normal)
michael@0:             _old_fish_prompt
michael@0:             return
michael@0:         end
michael@0:         # ...Otherwise, prepend env
michael@0:         set -l _checkbase (basename "$VIRTUAL_ENV")
michael@0:         if test $_checkbase = "__"
michael@0:             # special case for Aspen magic directories
michael@0:             # see http://www.zetadev.com/software/aspen/
michael@0:             printf "%s[%s]%s " (set_color -b blue white) (basename (dirname "$VIRTUAL_ENV")) (set_color normal) 
michael@0:             _old_fish_prompt
michael@0:         else
michael@0:             printf "%s(%s)%s" (set_color -b blue white) (basename "$VIRTUAL_ENV") (set_color normal)
michael@0:             _old_fish_prompt
michael@0:         end
michael@0:     end 
michael@0:     
michael@0:     set -gx _OLD_FISH_PROMPT_OVERRIDE "$VIRTUAL_ENV"
michael@0: end