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|
#!/bin/sh
PREFIX=@PREFIX@
. "$PREFIX/lib/libalpine.sh"
usage() {
cat <<-__EOF__
usage: setup-lbu [-hq] [MEDIA]
Setup lbu media settings.
MEDIA is optional mountpoint under /media
options:
-h Show this help
-q Quietly pick best suggestion. Only prompts user if unsure.
__EOF__
exit 1
}
get_filesystem_type() {
local mountpoint="$1"
shift
awk "\$2==\"$mountpoint\" {print \$3}" "$@"
}
get_dev() {
local mountpoint="$1"
shift
awk "\$2==\"$mountpoint\" {print \$1}" "$@"
}
is_in_fstab() {
test -n "$(get_filesystem_type $1 /etc/fstab)"
}
is_mounted() {
test -n "$(get_filesystem_type $1 /proc/mounts)"
}
is_iso9660() {
local fs
for fs in $(get_filesystem_type $1 /proc/mounts /etc/fstab); do
if [ "$fs" = "iso9660" ]; then
return 0
fi
done
return 1
}
set_media() {
local media="${1%/}" # strip trailing /
local mnt=/media/$media
case "$media" in
LABEL=*|UUID=*) mkdir -p /media/$media;;
esac
if [ -d "$media" ] && [ "${media#/media/}" != "$media" ]; then
mnt="$media"
media=${mnt#/media/}
fi
if [ "$ROOT" = "/" ] && ! [ -d "$mnt" ]; then
echo "$mnt: not a directory" >&2
exit 1
fi
# set LBU_MEDIA in /etc/lbu/lbu.conf
if [ -f "${ROOT}"etc/lbu/lbu.conf ]; then
sed -e "/^\#\?[[:space:]]*LBU_MEDIA=.*/s/.*/LBU_MEDIA=$media/" \
-i "${ROOT}"etc/lbu/lbu.conf
if ! egrep -q '^LBU_MEDIA=' "${ROOT}"etc/lbu/lbu.conf; then
echo "LBU_MEDIA=$media" >> "${ROOT}"etc/lbu/lbu.conf
fi
else
mkdir -p "${ROOT}"etc/lbu
echo "LBU_MEDIA=$media" >> "${ROOT}"etc/lbu/lbu.conf
fi
if [ -n "$ROOT" ] && [ "$ROOT" != "/" ]; then
return
fi
# append to fstab if its missing
if ! is_in_fstab $mnt; then
case "$media" in
LABEL=*|UUID=*)
dev=$(findfs $media)
;;
*) dev=$(get_dev $mnt /proc/mounts)
;;
esac
if [ -z "$dev" ]; then
echo "$media: Could not find device" >&2
exit 1
fi
# get TYPE=... LABEL=... UUID=... from blkid
eval $(blkid $dev | awk -F: '{print $2}')
if [ -z "$TYPE" ]; then
echo "$media: Could not find filesystem type" >&2
exit 1
fi
# use LABEL= if it was specifically selected, otherwise use UUID
case "$media" in
LABEL=*|UUID=*) UUID="$media";;
esac
printf "%s\t%s\t%s\tnoauto,defaults 0 0\n" "${UUID:-$dev}" "$mnt" "$TYPE" >> /etc/fstab
fi
# hack in case we have alpine_dev mounted on /media/usbdisk but
# lbu is stored on /media/usb
# Otherwise we get issues when we do lbu commit.
if [ "$media" = "usb" ] && is_mounted /media/usbdisk; then
mount --move /media/usbdisk /media/usb
elif [ "$media" = "usbdisk" ] && is_mounted /media/usb; then
mount --move /media/usb /media/usbdisk
fi
}
while getopts "hq" opt; do
case $opt in
h) usage;;
q) quiet=1;;
esac
done
shift $(($OPTIND - 1))
# check if MEDIA option was given
if [ -n "$1" ]; then
set_media "$1"
exit
fi
alternatives=
suggestion="none"
for dir in /media/*; do
[ -d "$dir" ] || continue
if is_iso9660 "$dir"; then
continue
fi
alternatives="$alternatives, '${dir#/media/}'"
if is_mounted "$dir"; then
suggestion=${dir#/media/}
[ -n "$quiet" ] && media=$suggestion
fi
done
if findfs "LABEL=APKOVL" >/dev/null; then
suggestion="LABEL=APKOVL"
case ", $alternatives, " in
*"'LABEL=APKOVL'"*)
;;
*) alternatives="$alternatives, 'LABEL=APKOVL'"
;;
esac
fi
# strip leading , + space
alternatives=${alternatives#, }
# if nothing is mounted (or boot from cdrom)
usbmnt=$(awk '$1 == "/dev/usbdisk" {print $2}' /proc/mounts)
if [ -z "$suggestion" ] && [ -n "$usbmnt" ]; then
suggestion=${usbmnt#/media/}
if [ -n "$quiet" ] && [ -e /dev/usbdisk ]; then
media=$suggestion
fi
fi
while [ -z "$media" ]; do
ask "Enter where to store configs ($alternatives or 'none')" "$suggestion"
media="$resp"
case "$media" in
none|LABEL=*) break;;
esac
if [ -d "/media/$media" ]; then
break
fi
echo "/media/$media is not a directory. Please try again."
media=
done
if [ "$media" = "none" ]; then
exit 0
fi
set_media "$media"
|
