add some more scripts

Signed-off-by: Bogomil Vasilev <smirky@smirky.net>

archy-usb-ctl.sh

@@ -0,0 +1,111 @@
+#!/bin/bash
+
+if [[ $UID != 0 ]]; then
+	printf "You need root permissions to use this script!\n"
+	exit 1
+fi
+
+export LVM_SUPPRESS_FD_WARNINGS=true
+ACTION=mount
+RUN_CHROOT=true
+USB_LUKS_PART=
+
+# Call getopt to validate the provided input. 
+options=$(getopt -o cmnu -l chroot,nochroot,mount,umount -- "$@")
+eval set -- "$options"
+while [ $# -gt 0 ]; do
+	case "$1" in
+	(-m|--mount)	ACTION=mount ;;
+	(-u|--umount)	ACTION=umount ;;
+	(-n|--nochroot)	RUN_CHROOT=false ;;
+	(-c|--chroot)	RUN_CHROOT=true ;;
+	(--)		shift; break;;
+	(-*)		echo "invalid option: $1" 1>&2; exit 1;;
+	(*)		break;;
+	esac
+	shift
+done
+if [ "$#" -gt 1 ]; then
+	echo "Only 1 additional argument possible! Got $#: $*"
+	exit 1
+fi
+
+if [ "$1" ]; then
+	USB_LUKS_PART="$1"
+fi
+
+get_archy_usb_dev_path()
+{
+	declare -A dev_map='([by-id]="usb-ADATA*part3" [by-uuid]="bbd2dd10-4209-4879-a1e2-5ee1eff8ff5c")'
+	for key in "${!dev_map[@]}"; do
+		dev_path=$(find -L "/dev/disk/${key}" -name "${dev_map[$key]}")
+		if [ -n "$dev_path" ]; then
+			echo "${dev_path}"
+			break
+		fi
+	done
+}
+
+get_usb_efi_part()
+{
+	echo "/dev/$(lsblk -ndo pkname "$1")2"
+}
+
+get_usb_root_part()
+{
+	lsblk -no path "$1" | grep root
+}
+
+usb_mount()
+{
+	cryptsetup open "${USB_LUKS_PART}" adatausb || exit $?
+	vgchange -a y > /dev/null || exit $?
+
+	usb_dev_root=$(get_usb_root_part "${USB_LUKS_PART}")
+
+	echo -e "Mounting /\t${usb_dev_root}"
+	mount "${usb_dev_root}" /mnt/usb
+	exit_code=$?
+	if [ $exit_code -ne 0 ]; then
+		cryptsetup close "${USB_LUKS_PART}"
+		exit $exit_code
+	fi
+
+	echo -e "Mounting /efi\t${USB_DEV_EFI}"
+	mount "${USB_DEV_EFI}" /mnt/usb/efi
+	exit_code=$?
+	if [ $exit_code -ne 0 ]; then
+		umount /mnt/usb
+		cryptsetup close "${USB_LUKS_PART}"
+		exit $exit_code
+	fi
+	if [ $RUN_CHROOT == true ]; then
+		arch-chroot /mnt/usb
+	fi
+}
+
+usb_umount()
+{
+	usb_dev_root=$(get_usb_root_part "${USB_LUKS_PART}")
+	umount "${USB_DEV_EFI}" "${usb_dev_root}" # || exit $?
+	vgchange -a n --quiet adata > /dev/null # || exit $?
+	cryptsetup close adatausb
+}
+
+# Auto-detect, in case we don't provide a device
+if [ -z "${USB_LUKS_PART}" ]; then
+	USB_LUKS_PART=$(get_archy_usb_dev_path)
+	if [ -z "${USB_LUKS_PART}" ]; then
+		printf "Device not found!\nUse %s </dev/path/to/LUKS_device>\n" "$0"
+		exit 1
+	fi
+fi
+
+USB_DEV_EFI=$(get_usb_efi_part "${USB_LUKS_PART}")
+if [ -n "${usb_def_efi}" ]; then
+	echo "EFI device not found!"
+	exit 1
+fi
+
+usb_$ACTION
+