#!/sbin/runscript

# This script generates the sreadahead pack file, which lists the blocks that
# sreadahead should load into memory.
# To regenerate the pack file, delete /etc/readahead.packed and reboot the
# system.

description="Generate sreadahead pack file (if it does not exist)"

depend() {
	after *
}

start() {
	if [ -f /etc/readahead.packed ]
	then
		return 0
	fi

	ebegin "Generating sreadahead pack file"
	cd /tmp
	find / \
		-path /home -prune -o \
		-path /tmp -prune -o \
		-path /var -prune -o \
		-path /proc -prune -o \
		-path /usr/portage -prune -o \
	    -type f \( -fstype ext3 -o -fstype rootfs \) > \
		/tmp/readahead.packed.new
	/sbin/sreadahead-pack readahead.packed.new &> /dev/null
	mv readahead.packed /etc/readahead.packed
	eend $?
}