A fish plugin to help dynamically load fish completions from $XDG_DATA_DIRS.
{
programs.fish = {
# ...
plugins = [
#...
{
name = "fish-completion-sync";
src = pkgs.fetchFromGitHub {
owner = "pfgray";
repo = "fish-completion-sync";
rev = "ba70b6457228af520751eab48430b1b995e3e0e2";
sha256 = "sha256-JdOLsZZ1VFRv7zA2i/QEZ1eovOym/Wccn0SJyhiP9hI=";
};
}
];
};
}fisher install pfgray/fish-completion-sync
Fish only considers $XDG_DATA_DIRS on shell startup, and thus will not dynamically load completions if $XDG_DATA_DIRS changes sometime after the shell starts. This leads to problems when using tools like direnv, which try to add completions on a per-folder basis.
This plugin tries to alleviate this issue.
tl;dr; it's the bit of glue between: fish-shell/fish-shell#8261 and: direnv/direnv#443
Fish will search $fish_complete_path dynamically, so the idea is to implement a function which listens for changes to $XDG_DATA_DIRS, and attempts to keep that in sync with $fish_complete_path.
function fish_completion_sync --on-variable XDG_DATA_DIRS
# If there are paths in $FISH_COMPLETION_ADDITIONS,
# but not in $XDG_DATA_DIRS
# remove them from $fish_complete_path
# remove them from $FISH_COMPLETION_ADDITIONS
# if there are paths in $XDG_DATA_DIRS
# but not in $FISH_COMPLETION_ADDITIONS
# add them to $fish_complete_path
# add them to $FISH_COMPLETION_ADDITIONS
echo "got new data dirs: $XDG_DATA_DIRS"
end
This has been working well for me, but it's stopped working a few times, and I haven't been able to pinpoint why. If you experience this, you can set the environment variable FISH_COMPLETION_DEBUG to help debug:
set -x FISH_COMPLETION_DEBUG 1Submit an issue if the problem persists.