Nim prompt on mac does not work

[gudstrand]

version 3.0.0
Darwin saturn 18.2.0 Darwin Kernel Version 18.2.0: Mon Nov 12 20:24:46 PST 2018; root:xnu-4903.231.4~2/RELEASE_X86_64 x86_64
xterm-256color

1. new installation of fish via brew
2. added fish to /etc/shells
3. ran fish
4. ran fish_config
5. went to prompt and selected Nim and clicked on set prompt

when I now do an ls I see the following:
┬─[gudstrand@saturn:~/.c/fish]
╰─>$ ls
config.fish fish_variables functions
fish: Unknown command '_nim_prompt_wrapper'
~/.config/fish/functions/fish_prompt.fish (line 29):
_nim_prompt_wrapper $retc '' (date +%X)
^
in function 'fish_prompt'
called on standard input

in command substitution
called on standard input

┬─[gudstrand@saturn:~/.c/fish]
╰─>$

nim.prompt.txt

[faho]

Sorry about that!

This is a manifestation of #736, which we should get around to fixing. I've applied a workaround for now, so it should work in the next release.

For now, instead of choosing it via fish_config, copy the file with something like

cp $__fish_data_dir/tools/web_config/sample_prompts/nim.fish $fish_function_path[1]/fish_prompt.fish

[ridiculousfish]

Picked into 3.0.1 as 96f7924