fix: build.sh for latest pkgs.nixos-generators

Author: tmplt

build.sh

@@ -1,13 +1,14 @@
 #! /usr/bin/env nix-shell
-#! nix-shell -i bash -p coreutils pv zstd bc sudo
+#! nix-shell -i bash -p coreutils pv zstd bc sudo gawk
 set -eou pipefail
 
 [[ $# -ne 1 ]] && echo "usage: ${0} <target to flash>" && exit 1
 [[ ! -e ${1} ]] && echo "Target ${1} does not exist." && exit 2
 [[ ! -w ${1} ]] && echo "Target ${1} is not writable. Do you have permissions?" && exit 2
 
 echo "Building image..."
-image=$(sudo -u "${SUDO_USER}" ./mmc-image.nix) # cannot always be run as root; TODO: bug report
+# ./mmc-image.nix cannot always be run as root; TODO: bug report
+image=$(cat $(sudo -u "${SUDO_USER}" ./mmc-image.nix) | awk '{print $3}')
 
 echo "Flashing ${1}..."
 comp_size=$(stat --printf=%s ${image})

mmc-image.nix

@@ -75,7 +75,7 @@
           -TNR ${bastion.socketPath}:localhost:22 ${bastion.user}@${bastion.host} \
           -i /etc/id_rsa
       '';
-      
+
       StandardError = "journal";
       Type = "simple";