I’ve been using the Fish shell for over 4 years and absolutely love it. From the built in auto complete that is generated from your
man pages to its take on shell history it all just gels so nicely together. If you’ve only ever used
bash for your time in the shell I highly recommend giving it a go but beware like anything new it does take some getting used to.
I’m not sure whether it was just timing but after upgrading to Catalina I found that new windows were taking 5+ seconds to launch. Super annoying when you’re trying to debug something and open multiple windows at once.
I finally had enough and found this bug report
which was my salvation. I ran the debug command from that thread (
fish -d 3) and saw it looping over this:
set local_path $x $local_path' with pgrp -2
Turns out I was adding to my
$PATHS in my
config.fish file like this:
set -g fish_user_paths ~/bin /usr/local/sbin /usr/local/mysql/bin $fish_user_paths
Which was causing my
fish_user_paths variable to get longer and longer with each new shell causing whatever things Fish does on launch (scanning paths for functions maybe?) to loop over the same directories again and again.
Speeding things up
The fix was simple, just remove the config from my environment:
And then set it a single time universally:
set -U fish_user_paths ~/bin /usr/local/sbin /usr/local/mysql/bin
After this my shell was back to its normal speedy startup.