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nixpkgs/nixos/modules/installer/tools/nixos-build-vms/nixos-build-vms.sh
Maximilian Bosch e998f5140f
nixos-build-vms: pass --option to nix-build
Also simplified the argument parsing to write all currently supported
CLI options into a bash array and pass this to `nix-build`.

Also documented `--option` usage in the corresponding manpage.
2019-02-04 10:46:12 +01:00

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Bash

#! @shell@ -e
# Shows the usage of this command to the user
showUsage() {
exec man nixos-build-vms
exit 1
}
# Parse valid argument options
nixBuildArgs=()
networkExpr=
while [ $# -gt 0 ]; do
case "$1" in
--no-out-link)
nixBuildArgs+=("--no-out-link")
;;
--show-trace)
nixBuildArgs+=("--show-trace")
;;
-h|--help)
showUsage
exit 0
;;
--option)
shift
nixBuildArgs+=("--option" "$1" "$2"); shift
;;
*)
if [ ! -z "$networkExpr" ]; then
echo "Network expression already set!"
showUsage
exit 1
fi
networkExpr="$(readlink -f $1)"
;;
esac
shift
done
if [ -z "$networkExpr" ]
then
echo "ERROR: A network expression must be specified!" >&2
exit 1
fi
# Build a network of VMs
nix-build '<nixpkgs/nixos/modules/installer/tools/nixos-build-vms/build-vms.nix>' \
--argstr networkExpr $networkExpr "${nixBuildArgs[@]}"