home: direnv: add 'nix' library file

This commit is contained in:
Bruno BELANYI 2022-04-13 09:51:13 +02:00
parent d118351849
commit b9361dada4

31
home/direnv/lib/nix.sh Normal file
View file

@ -0,0 +1,31 @@
#shellcheck shell=bash
use_pkgs() {
if ! has nix; then
# shellcheck disable=2016
log_error 'use_pkgs: `nix` is not in PATH'
return 1
fi
local DEFAULT_FLAKE="pkgs"
# Allow changing the default flake through a command line switch
if [ "$1" = "-f" ] || [ "$1" = "--flake" ]; then
DEFAULT_FLAKE="$2"
shift 2
fi
# Allow specifying a full installable, or just a package name and use the default flake
local packages=()
for pkg; do
if [[ $pkg =~ .*#.* ]]; then
packages+=("$pkg")
else
packages+=("$DEFAULT_FLAKE#$pkg")
fi
done
# shellcheck disable=2154
direnv_load nix shell "${packages[@]}" --command "$direnv" dump
}