moar progress

install.sh

@@ -72,19 +72,59 @@ args() {
     args_ensure_is_set "--host" "$DOTNIX_HOSTNAME"
 }
 
+sed_safe () {
+    # I got this off of some random StackOverflow answer. Don't put too much trust in this.
+    printf "%s" "$1" | sed -r 's/([\$\.\*\/\[\\^])/\\\1/g' | sed 's/[]]/\[]]/g'
+}
+
+partition_num_for_device() {
+    parent_dir="$(basename "$(dirname "$1")")"
+    if [ "$parent_dir" = "disk" ]; then
+        >&2 echo "Don't use persistent device names. They will automatically be set later on."
+        exit 1
+    elif [ "$parent_dir" = "mapper" ]; then
+        >&2 echo "lvm volumes are not supported."
+        exit 1
+    elif [ "$parent_dir" != "dev" ]; then
+        >&2 echo "Block device directory not recognized: $parent_dir"
+        exit 1
+    fi
+
+    case "$(basename "$1")" in
+        "nvme"* | "mmcblk"*)
+            printf "%s" "${1}p${2}"
+            ;;
+        "sda"* | "vda"* | "hda"*)
+            printf "%s" "${1}${2}"
+            ;;
+        *)
+            >&2 echo "Invalid block device type '$(basename "$1")'"
+            exit 1
+            ;;
+    esac
+}
+
 update_managed_values() {
-    echo "piss"
+    sed -i 's/\( *device = \)".*"\(; #.*\)/\1"'"$(sed_safe "$DOTNIX_INSTALL_DEVICE")"'"\2/' "./hosts/$DOTNIX_HOSTNAME/default.nix"
+    sed -i 's/\( *device = \)".*"\(; #.*\)/\1"'"$(sed_safe "$DOTNIX_INSTALL_DEVICE")"'"\2/' "./hosts/$DOTNIX_HOSTNAME/disko.nix"
+    sed -i 's/\( *MNT_PART=\)".*"\( #.*\)/\1"'"$(sed_safe \
+        "$(partition_num_for_device "$DOTNIX_INSTALL_DEVICE" "2")")"'"\2/' "./hosts/$DOTNIX_HOSTNAME/disko.nix"
 }
 
 main () {
     args "$@"
 
-    update_managed_values
-
     if [ "$(id -u)" != "0" ]; then
         >&2 echo "The installation script must be run as root to work."
         exit 1
     fi
+
+    if [ ! -d /sys/firmware/efi ]; then
+        >&2 echo "Legacy BIOS is unsupported"
+        exit 1
+    fi
+
+    update_managed_values
 }
 
 set -e