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#!/usr/bin/env bash
set -euo pipefail
set -x
readonly libexec_dir="${0%/*}"
# mount was chosen as the default mode because it's less destructive
mode=mount
nix_args=()
showUsage() {
cat <<USAGE
Usage: $0 [options] disk-config.nix
Options:
* -m, --mode mode
set the mode, either create or mount
* --arg name value
pass value to nix-build. can be used to set disk-names for example
* --argstr name value
pass value to nix-build as string
USAGE
}
abort() {
echo "aborted: $*" >&2
exit 1
}
## Main ##
while [[ $# -gt 0 ]]; do
case "$1" in
-m | --mode)
mode=$2
shift
;;
--argstr | --arg)
nix_args+=("$1" "$2" "$3")
shift
shift
;;
--help)
showUsage
exit 0
;;
*)
if [ -z ${disko_config+x} ] && [ -e $1 ]; then
disko_config=$1
else
showUsage
fi
;;
esac
shift
done
if ! ([[ $mode = "create" ]] || [[ $mode = "mount" ]]); then
abort "mode must be either create or mount"
fi
script=$(nix-build "${libexec_dir}"/cli.nix \
--arg diskoFile "$disko_config" \
--argstr mode "$mode" \
"${nix_args[@]}"
)
exec "$script"
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