mirror of
https://github.com/zerotier/edge.git
synced 2026-05-22 16:25:05 -07:00
Adam Ierymenko
149 lines
3.2 KiB
Bash
Executable File
149 lines
3.2 KiB
Bash
Executable File
#!/bin/sh
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PREFIX=
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. "$PREFIX/lib/libalpine.sh"
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usage() {
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cat <<-__EOF__
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usage: setup-lbu [-hq] [MEDIA]
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Setup lbu media settings.
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MEDIA is optional mountpoint under /media
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options:
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-h Show this help
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-q Quietly pick best suggestion. Only prompts user if unsure.
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__EOF__
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exit 1
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}
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get_mnt_line() {
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local mntpoint="$1"
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local mnttab="$2"
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local media=${mntpoint#/media/}
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local uuid=
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# replace the device with UUID since the device is in /proc/mounts
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# and we want the UUID in fstab
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if [ "${media#UUID}" != "$media" ]; then
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uuid="$media"
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fi
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# we need filter out codepage=... in mount option as it makes
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# mount fail if its there.
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awk -v uuid="$uuid" "\$2 == \"$mntpoint\" {
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if (uuid)
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\$1 = uuid;
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gsub(/,codepage=.*,/, \",\", \$4);
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print \$0;
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}" "$mnttab"
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}
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is_mounted() {
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test -n "$(get_mnt_line $1 /proc/mounts)"
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}
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is_in_fstab() {
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test -n "$(get_mnt_line $1 /etc/fstab)"
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}
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set_media() {
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local media="${1%/}" # strip trailing /
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local mnt=/media/$media
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if [ -d "$media" ] && [ "${media#/media/}" != "$media" ]; then
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mnt="$media"
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media=${mnt#/media/}
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fi
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if [ "$ROOT" = "/" ] && ! [ -d "$mnt" ]; then
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echo "$mnt: not a directory" >&2
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exit 1
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fi
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# set LBU_MEDIA in /etc/lbu/lbu.conf
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if [ -f "${ROOT}"etc/lbu/lbu.conf ]; then
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sed -e "/^\#\?[[:space:]]*LBU_MEDIA=.*/s/.*/LBU_MEDIA=$media/" \
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-i "${ROOT}"etc/lbu/lbu.conf
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if ! egrep -q '^LBU_MEDIA=' "${ROOT}"etc/lbu/lbu.conf; then
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echo "LBU_MEDIA=$media" >> "${ROOT}"etc/lbu/lbu.conf
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fi
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else
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mkdir -p "${ROOT}"etc/lbu
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echo "LBU_MEDIA=$media" >> "${ROOT}"etc/lbu/lbu.conf
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fi
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if [ -n "$ROOT" ] && [ "$ROOT" != "/" ]; then
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return
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fi
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# append to fstab if its missing
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if ! is_in_fstab $mnt && is_mounted $mnt; then
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get_mnt_line "$mnt" /proc/mounts >> /etc/fstab
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fi
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# hack in case we have alpine_dev mounted on /media/usbdisk but
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# lbu is stored on /media/usb
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# Otherwise we get issues when we do lbu commit.
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if [ "$media" = "usb" ] && is_mounted /media/usbdisk; then
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mount --move /media/usbdisk /media/usb
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elif [ "$media" = "usbdisk" ] && is_mounted /media/usb; then
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mount --move /media/usb /media/usbdisk
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fi
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}
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while getopts "hq" opt; do
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case $opt in
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h) usage;;
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q) quiet=1;;
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esac
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done
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shift $(($OPTIND - 1))
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# check if MEDIA option was given
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if [ -n "$1" ]; then
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set_media "$1"
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exit
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fi
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alternatives=
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suggestion="none"
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for dir in /media/*; do
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[ -d "$dir" ] || continue
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[ "$dir" = "/media/cdrom" ] && continue
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alternatives="$alternatives, '${dir#/media/}'"
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if is_mounted $dir; then
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suggestion=${dir#/media/}
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[ -n "$quiet" ] && media=$suggestion
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fi
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done
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# strip leading , + space
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alternatives=${alternatives#, }
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# if nothing is mounted (or boot from cdrom)
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usbmnt=$(awk '$1 == "/dev/usbdisk" {print $2}' /proc/mounts)
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if [ -z "$suggestion" ] && [ -n "$usbmnt" ]; then
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suggestion=${usbmnt#/media/}
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if [ -n "$quiet" ] && [ -e /dev/usbdisk ]; then
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media=$suggestion
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fi
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fi
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while [ -z "$media" ]; do
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echo -n "Enter where to store configs ($alternatives or 'none') [$suggestion]: "
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default_read media $suggestion
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if [ "$media" = "none" ] || [ -d "/media/$media" ]; then
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break
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fi
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echo "/media/$media is not a directory. Please try again."
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media=
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done
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if [ "$media" = "none" ]; then
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exit 0
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fi
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set_media "$media"
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