mirror of
https://github.com/monero-project/monero.git
synced 2025-02-15 04:33:41 +02:00
99 lines
2.6 KiB
Bash
99 lines
2.6 KiB
Bash
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#!/bin/bash
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set -e
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LOOP_DEVICE_MAJOR=7
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LOOP_DEVICE_MIN_ID=100
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echo_err() {
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echo "$@" >&2
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}
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root_exec() {
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if [[ $EUID -ne 0 ]]; then
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${ROOT_EXEC_CMD:-sudo} "$@"
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else
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"$@"
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fi
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}
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create_device_node() {
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local -r last_id=$(find /dev/ -name 'loop[0-9]*' -printf '%f\n' | sed 's/^loop//' | sort -r -n | head -1)
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local id=$((last_id + 1))
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if [[ "$id" -lt "$LOOP_DEVICE_MIN_ID" ]]; then
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id="$LOOP_DEVICE_MIN_ID"
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fi
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local path
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for (( i=0; i<10; i++ )); do
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path="/dev/loop$id"
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if [[ ! -e "$path" ]] && root_exec mknod "$path" b "$LOOP_DEVICE_MAJOR" "$id"; then
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echo "$path"
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return 0
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fi
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$((id++))
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done
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return 1
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}
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device_mountpoint() {
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local -r datadir="$1"
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local -r dev="$2"
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if [[ -z "$datadir" || -z "$dev" ]]; then
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echo_err "Usage: device_mountpoint <data dir> <device>"
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return 1
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fi
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echo "$datadir/mnt-$(basename "$dev")"
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}
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create_device() {
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local -r datadir="$1"
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if [[ -z "$datadir" ]]; then
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echo_err "Usage: create_device <data dir>"
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return 1
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fi
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local -r dev=$(create_device_node)
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local -r fs="$datadir/$(basename "$dev").vhd"
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local -r mountpoint=$(device_mountpoint "$datadir" "$dev")
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echo_err
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echo_err "# Device $dev"
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dd if=/dev/zero of="$fs" bs=64K count=128 >/dev/null 2>&1
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root_exec losetup "$dev" "$fs"
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root_exec mkfs.ext4 "$dev" >/dev/null 2>&1
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mkdir "$mountpoint"
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root_exec mount "$dev" "$mountpoint"
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echo "$dev"
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}
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# Unused by default, but helpful for local development
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destroy_device() {
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local -r datadir="$1"
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local -r dev="$2"
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if [[ -z "$datadir" || -z "$dev" ]]; then
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echo_err "Usage: destroy_device <data dir> <device>"
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return 1
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fi
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echo_err "Destroying device $dev"
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root_exec umount $(device_mountpoint "$datadir" "$dev")
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root_exec losetup -d "$dev"
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root_exec rm "$dev"
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}
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block_device_path() {
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device_name=$(basename "$1")
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device_minor=${device_name/#loop}
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echo "/sys/dev/block/$LOOP_DEVICE_MAJOR:$device_minor"
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}
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tmpdir=$(mktemp --tmpdir -d monerotest.XXXXXXXX)
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echo_err "Creating devices using temporary directory: $tmpdir"
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dev_rot=$(create_device "$tmpdir")
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bdev_rot=$(block_device_path "$dev_rot")
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echo 1 | root_exec tee "$bdev_rot/queue/rotational" >/dev/null
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echo MONERO_TEST_DEVICE_HDD=$(device_mountpoint "$tmpdir" "$dev_rot")
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dev_ssd=$(create_device "$tmpdir")
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bdev_ssd=$(block_device_path "$dev_ssd")
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echo 0 | root_exec tee "$bdev_ssd/queue/rotational" >/dev/null
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echo MONERO_TEST_DEVICE_SSD=$(device_mountpoint "$tmpdir" "$dev_ssd")
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