nixpkgs/nixos/modules/programs/bash/bash-completion.nix
Anders Kaseorg d44b6ae6cb modules/programs/bash: Fix ShellCheck warnings
https://github.com/koalaman/shellcheck/wiki/SC2086
Double quote to prevent globbing and word splitting.

https://github.com/koalaman/shellcheck/wiki/SC2166
Prefer `[ p ] && [ q ]` as `[ p -a q ]` is not well defined.

https://github.com/koalaman/shellcheck/wiki/SC2219
Instead of `let expr`, prefer `(( expr ))` .

Signed-off-by: Anders Kaseorg <andersk@mit.edu>
2021-09-06 08:49:34 +09:00

38 lines
1.1 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
let
enable = config.programs.bash.enableCompletion;
in
{
options = {
programs.bash.enableCompletion = mkEnableOption "Bash completion for all interactive bash shells" // {
default = true;
};
};
config = mkIf enable {
programs.bash.promptPluginInit = ''
# Check whether we're running a version of Bash that has support for
# programmable completion. If we do, enable all modules installed in
# the system and user profile in obsolete /etc/bash_completion.d/
# directories. Bash loads completions in all
# $XDG_DATA_DIRS/bash-completion/completions/
# on demand, so they do not need to be sourced here.
if shopt -q progcomp &>/dev/null; then
. "${pkgs.bash-completion}/etc/profile.d/bash_completion.sh"
nullglobStatus=$(shopt -p nullglob)
shopt -s nullglob
for p in $NIX_PROFILES; do
for m in "$p/etc/bash_completion.d/"*; do
. "$m"
done
done
eval "$nullglobStatus"
unset nullglobStatus p m
fi
'';
};
}