setup-in-qemu

#! /bin/sh

# These commands are run inside Qemu after Qemu loads a version of the current
# directory into memory.

build () {
    make || return 1

    if lsmod | grep ospfs >/dev/null 2>&1; then
	if /bin/mount | grep "`pwd`" >/dev/null 2>&1; then
	    echo "*** Unmounting ospfs in the test directory."
	    /bin/umount test || return 1
	fi
	echo "*** Unloading old module."
	rmmod ospfs || return 1
    fi

    echo
    echo "*** ospfs.ko built successfully.  Now loading module."
    insmod ospfs.ko
    if [ ! -e test ]; then
	echo "*** Creating test directory."
	mkdir test
    fi
    echo "*** Mounting ospfs in the test directory."
    /bin/mount -t ospfs none test || return 1
    echo "*** You may now test your filesystem by making changes to the test directory."
    echo
}

reload () {
    mydir="`pwd`"
    mkdir -p /tmp/cs111/reload
    cd /tmp/cs111/reload || return 1
    rm -rf *
    echo "Trying TFTP..."
    (echo "binary"; echo "get /lab.tar.gz") | tftp 10.0.2.2 >/dev/null
    if [ ! -f lab.tar.gz ]; then
	echo "Could not reload source!" 1>&2; return 1
    fi
    tar -mxzf lab.tar.gz
    labname="`tar -mtzf lab.tar.gz | head -n 1`"
    cd "$labname"
    anychanges=n
    for i in `find . -type f`; do
	if ! cmp "$i" /tmp/cs111/"$labname"/"$i" >/dev/null 2>&1; then
	    cp "$i" /tmp/cs111/"$labname"/"$i"; anychanges=y
	fi
    done
    cd /tmp/cs111/"$labname"
    if [ $anychanges = n ]; then
	echo "*** No changes in source." 1>&2
	echo "&&& Did you remember to type 'r' in the run-qemu terminal?" 1>&2
	echo 1>&2
    else
	echo "*** Source updated." 1>&2
	build
	echo 1>&2
    fi
}

if [ -f labstuff.tgz ]; then
    tar -mxzf labstuff.tgz
    cd `tar -tzf labstuff.tgz | head -n 1`
    for i in `tar -tzf ../labstuff.tgz | sed 's/^[^\/]*\///;s/\/$//' | grep . | grep -v /`; do mv $i ..; done
    cd ..
fi

if [ -f setup-in-qemu2 ]; then
    ./setup-in-qemu2
fi

make clean
build