The Tor Browser: python/virtualenv/virtualenv_embedded/activate.fish@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 # This file must be used with "source bin/activate.fish" *from fish* (http://fishshell.com)

     2 # you cannot run it directly

     4 function deactivate  -d "Exit virtualenv and return to normal shell environment"

     5     # reset old environment variables

     6     if test -n "$_OLD_VIRTUAL_PATH"

     7         set -gx PATH $_OLD_VIRTUAL_PATH

     8         set -e _OLD_VIRTUAL_PATH

     9     end

    10     if test -n "$_OLD_VIRTUAL_PYTHONHOME"

    11         set -gx PYTHONHOME $_OLD_VIRTUAL_PYTHONHOME

    12         set -e _OLD_VIRTUAL_PYTHONHOME

    13     end

    15     if test -n "$_OLD_FISH_PROMPT_OVERRIDE"

    16         # set an empty local fish_function_path, so fish_prompt doesn't automatically reload

    17         set -l fish_function_path

    18         # erase the virtualenv's fish_prompt function, and restore the original

    19         functions -e fish_prompt

    20         functions -c _old_fish_prompt fish_prompt

    21         functions -e _old_fish_prompt

    22         set -e _OLD_FISH_PROMPT_OVERRIDE

    23     end

    25     set -e VIRTUAL_ENV

    26     if test "$argv[1]" != "nondestructive"

    27         # Self destruct!

    28         functions -e deactivate

    29     end

    30 end

    32 # unset irrelevant variables

    33 deactivate nondestructive

    35 set -gx VIRTUAL_ENV "__VIRTUAL_ENV__"

    37 set -gx _OLD_VIRTUAL_PATH $PATH

    38 set -gx PATH "$VIRTUAL_ENV/__BIN_NAME__" $PATH

    40 # unset PYTHONHOME if set

    41 if set -q PYTHONHOME

    42     set -gx _OLD_VIRTUAL_PYTHONHOME $PYTHONHOME

    43     set -e PYTHONHOME

    44 end

    46 if test -z "$VIRTUAL_ENV_DISABLE_PROMPT"

    47     # fish uses a function instead of an env var to generate the prompt.

    49     # copy the current fish_prompt function as the function _old_fish_prompt

    50     functions -c fish_prompt _old_fish_prompt

    52     # with the original prompt function copied, we can override with our own.

    53     function fish_prompt

    54         # Prompt override?

    55         if test -n "__VIRTUAL_PROMPT__"

    56             printf "%s%s" "__VIRTUAL_PROMPT__" (set_color normal)

    57             _old_fish_prompt

    58             return

    59         end

    60         # ...Otherwise, prepend env

    61         set -l _checkbase (basename "$VIRTUAL_ENV")

    62         if test $_checkbase = "__"

    63             # special case for Aspen magic directories

    64             # see http://www.zetadev.com/software/aspen/

    65             printf "%s[%s]%s " (set_color -b blue white) (basename (dirname "$VIRTUAL_ENV")) (set_color normal)

    66             _old_fish_prompt

    67         else

    68             printf "%s(%s)%s" (set_color -b blue white) (basename "$VIRTUAL_ENV") (set_color normal)

    69             _old_fish_prompt

    70         end

    71     end

    73     set -gx _OLD_FISH_PROMPT_OVERRIDE "$VIRTUAL_ENV"

    74 end

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