#!/bin/rc

# desc: choose and mount file system partition

switch($1){
case go
	echo 'The following partitions named fscache* were found.'
	echo
	echo 'Please choose one to use as the installation file system'
	echo 'for your Plan 9 installation.'
	echo
	files=(`{ls /dev/sd*/fscache* /dev/fs/fscache* >[2]/dev/null})
	ls -l $files
	echo
	if(~ $#files 1)
		default=(-d $files)
	if not
		default=()
	prompt $default 'Cwfs partition to use for Plan 9 installation' $files
	fs=$rd
	export fs

	if(! test -f /tmp/fsconfig) {
		{
			echo service cwfs
			echo nvram /dev/sdC0/nvram
			echo config /dev/sdC0/fscache
			echo filsys main c'('/dev/sdC0/fscache')'f'('/dev/sdC0/fsworm')'
			echo filsys dump o
			echo filsys other '('/dev/sdC0/other')'
			echo ream main
			echo ream other
			echo end
		} >/tmp/fsconfig
	}

	log Starting cwfs file server for $fs
	unmount /n/newfs >[2]/dev/null
	echo halt >>/srv/cwfs.cmd >[2]/dev/null
	rm -f /srv/cwfs /srv/cwfs.cmd
	logprog cwfs -c -C -f $fs </tmp/fsconfig
	echo allow >>/srv/cwfs.cmd
	echo noauth >>/srv/cwfs.cmd
	echo users default >>/srv/cwfs.cmd

	log Mounting cwfs file server for $fs
	if(! logprog mount -c /srv/cwfs /n/newfs){
		echo 'mounting cwfs: '^$status
		exit oops
	}

	if(test -d /n/newfs/wrap){
		moveoldfs go
		if(test -d /n/newfs/wrap)
			exit cannotsmashold
	}
	if(! test -f /n/newfs/dist/replica/client/plan9.log){
		echo 'create /dist sys sys 775 d' >>/srv/cwfs.cmd
		echo 'create /dist/replica sys sys 775 d' >>/srv/cwfs.cmd
		echo 'create /dist/replica/ndist sys sys 775' >>/srv/cwfs.cmd
		echo 'create /dist/replica/client sys sys 775 d' >>/srv/cwfs.cmd
		echo 'create /dist/replica/client/plan9.db sys sys 664' >>/srv/cwfs.cmd
		echo 'create /dist/replica/client/plan9.log sys sys 664 a' >>/srv/cwfs.cmd
	}

case checkready checkdone
	if(! test -f /dev/sd*/fscache*){
		mountfs=notdone
		export mountfs
		exit
	}
	if(! ~ $#fs 1 || ! test -f $fs){
		mountfs=ready
		export mountfs
		exit
	}
	if(! test -f /srv/cwfs){
		echo halt >>/srv/cwfs.cmd
		rm -f /srv/cwfs /srv/cwfs.cmd
		logprog cwfs -C -f $fs
		echo allow >>/srv/cwfs.cmd >>[2]/srv/log
	}
	if(test -f /srv/cwfs && ! test -f /n/newfs/dist/replica/client/plan9.log){
		log Mounting cwfs file server for $fs
		if(! logprog mount -c /srv/cwfs /n/newfs)
			echo 'mounting cwfs: '^$status
		echo allow >>/srv/cwfs.cmd >>[2]/srv/log
	}
	if(test -f /srv/cwfs && test -f /n/newfs/dist/replica/client/plan9.log){
		mountfs=done
		export mountfs
		exit
	}
	mountfs=ready
	export mountfs
	exit
}