git: 9front

ref: e50a9f5b2a9dbc1152f503319bb7c2a862f12c7d
dir: /rc/bin/inst/prepdisk/

#!/bin/rc

# desc: subdivide plan 9 disk partition
# prereq: partdisk

useesp=no

fn autotype {
	if(~ $useesp no)
		parts=(9fat)
	if not
		parts=()
	switch($fstype){
	case cwfs cwfs64 cwfs64x
		parts=($parts nvram fscache fsworm other)
	case hjfs gefs
		parts=($parts nvram fs)
	}
	echo '-a '^$parts
}

switch($1) {
case checkready
	disks=(/dev/sd*/plan9*)
	if(! test -f $disks(1)){
		prepdisk=notdone
		export prepdisk
	}

case go
	echo 'The following Plan 9 disk partitions were found.'
	echo
	disks=(/dev/sd*/plan9*)
	for (i in $disks){
		echo $i
		echo q | disk/prep -r $i >[2]/dev/null
		echo
	}
	if(~ $#disks 1)
		default=(-d $disks)
	if not
		default=()
	prompt $default 'Plan 9 partition to subdivide' $disks
	disk=$rd

	if(ls `{basename -d $disk}^/esp >[2]/dev/null){
		echo
		echo 'By default 9front places its boot materials on its own 9fat partition.'
		echo 'This requires the firmware be capable of booting from fat partitions other than the esp.'
		echo 'You can also place all boot materials directly on the esp instead.'
		echo 'This option works with a larger set of machines, but may disrupt existing configurations.'
		echo
		prompt -d no 'Use esp as 9fat?' no yes
		useesp=$rd
	}

	echo 'This is disk/prep; use it to subdivide the Plan 9 partition.'
	echo 'If it is not yet subdivided, a sensible layout will be suggested;'
	echo 'you can probably just type ''w'' and then ''q''.'
	echo
	disk/prep `{autotype} $disk
	disk/prep -p $disk >`{basename -d $disk}^/ctl >[2]/dev/null

case checkdone
	disks=(/dev/sd*/nvram)
	if(! test -f $disks(1))
		prepdisk=ready
	if(! ~ $prepdisk ready)
		prepdisk=done
	export prepdisk
}