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#!/usr/bin/env bash
# shellcheck source=./rebash/core.sh
source "/usr/lib/rebash/core.sh"
core.import logging
tools_find_block_device() {
# shellcheck disable=SC2034,SC2016
local __doc__='
>>> lsblk() {
>>> if [[ "${@: -1}" == "" ]];then
>>> echo "lsblk: : not a block device"
>>> return 1
>>> fi
>>> if [[ "${@: -1}" != "/dev/sdb" ]];then
>>> echo "/dev/sda disk"
>>> echo "/dev/sda1 part SYSTEM_LABEL 0x7"
>>> echo "/dev/sda2 part"
>>> fi
>>> if [[ "${@: -1}" != "/dev/sda" ]];then
>>> echo "/dev/sdb disk"
>>> echo "/dev/sdb1 part boot_partition "
>>> echo "/dev/sdb2 part system_partition"
>>> fi
>>> }
>>> blkid() {
>>> [[ "${@: -1}" != "/dev/sda2" ]] && return 0
>>> echo "gpt"
>>> echo "only discoverable by blkid"
>>> echo "boot_partition"
>>> echo "192d8b9e"
>>> }
>>> tools_find_block_device "boot_partition"
>>> tools_find_block_device "boot_partition" /dev/sda
>>> tools_find_block_device "discoverable by blkid"
>>> tools_find_block_device "_partition"
>>> tools_find_block_device "not matching anything" || echo not found
>>> tools_find_block_device "" || echo not found
/dev/sdb1
/dev/sda2
/dev/sda2
/dev/sdb1 /dev/sdb2
not found
not found
'
local partition_pattern="$1"
local device="$2"
[ "$partition_pattern" = "" ] && return 1
tools_find_block_device_simple() {
local device_info
lsblk --noheadings --list --paths --output \
NAME,TYPE,LABEL,PARTLABEL,UUID,PARTUUID ${device:+"$device"} \
| sort --unique | while read -r device_info; do
local current_device
current_device=$(echo "$device_info" | cut -d' ' -f1)
if [[ "$device_info" = *"${partition_pattern}"* ]]; then
echo "$current_device"
fi
done
}
tools_find_block_device_deep() {
local device_info
lsblk --noheadings --list --paths --output NAME ${device:+"$device"} \
| sort --unique | cut -d' ' -f1 | while read -r current_device; do
blkid -p -o value "$current_device" \
| while read -r device_info; do
if [[ "$device_info" = *"${partition_pattern}"* ]]; then
echo "$current_device"
fi
done
done
}
local candidates
candidates=($(tools_find_block_device_simple))
[ ${#candidates[@]} -eq 0 ] && candidates=($(tools_find_block_device_deep))
unset -f tools_find_block_device_simple
unset -f tools_find_block_device_deep
[ ${#candidates[@]} -eq 0 ] && return 1
[ ${#candidates[@]} -ne 1 ] && echo "${candidates[@]}" && return 1
logging.plain "${candidates[0]}"
}
alias tools.find_block_device="tools_find_block_device"
|
