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#!/bin/rc
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# desc: initialize disks for a fossil server
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# prereq: configfs
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switch($1){
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case checkready checkdone
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	if(! ~ $fstype fossil+venti fossil){
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		fmtfossil=notdone
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		export fmtfossil
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		exit
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	}
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	ff=`{ls /dev/sd*/fossil* /dev/fs/fossil* >[2]/dev/null}
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	if(~ $#ff 0){
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		fmtfossil=notdone
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		export fmtfossil
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		exit
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	}
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	gg=()
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	for(f in $ff)
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		if(isfossil $f)
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			gg=($gg $f)
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	if(~ $#gg 0){
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		fmtfossil=ready
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		export fmtfossil
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		exit
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	}
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	fmtfossil=done
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	export fmtfossil
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	exit
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case go
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	ff=`{ls /dev/sd*/fossil* /dev/fs/fossil* >[2]/dev/null}
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	if(~ $#ff 0){
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		echo 'You need to create a partition or partitions to hold the Fossil write cache.'
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		echo 'The partition name must begin with "fossil".'
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		echo
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		fmtfossil=notdone
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		export fmtfossil
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		exit
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	}
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	default=()
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	if(~ $#ff 1){
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		default=(-d $ff)
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	}
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	echo You have the following fossil partitions.
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	echo
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	prompt $default 'Fossil partition to format' $ff
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	f=$rd
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	do=yes
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	if(isfossil $f){
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		echo $f appears to already be formatted as Fossil file system.
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		echo Do you really want to reformat it?
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		echo
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		prompt -d no 'Reformat '$f yes no
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		do=$rd
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	}
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	if(~ $do yes){
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		fossil/flfmt -y $f
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		n=`{cat /dev/swap | grep ' user' | sed 's/^[0-9]+\/([0-9]+) .*/\1/'}
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		if(test $n -gt 32768)
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			m=3000	# if have at least 128 user MB, use 24MB for fossil
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		if not if(test $n -gt 16384)
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			m=1500	# 64 user MB => 12MB for fossil
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		if not if(test $n -gt 8192)
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			m=750	# 32 user MB => 6MB for fossil
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		if not
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			m=256	# 2MB for fossil (this will be slow)
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		# if we're using a venti in the back, take hourly snapshots
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		# that retire after three days, in addition to the daily dumps at 5am
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		if(~ $fstype fossil+venti){
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			v=''
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			snap='fsys main snaptime -s 60 -a 0500 -t 2880'
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		}
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		# otherwise, take the daily dumps but nothing else --
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		# we can't retire snapshots unless dumps are being archived
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		if not{
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			v='-V'
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			snap=''
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		}
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		echo \
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'fsys main config '^$f^'
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fsys main open '^$v^' -c '^$m^'
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'^$snap^'
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'		| fossil/conf -w $f
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	}
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	echo Done.
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}