vm-build.expect

#!/usr/bin/expect -f

set timeout 300

spawn qemu-system-arm \
    -kernel kernel-qemu \
    -cpu arm1176 \
    -m 256 \
    -M versatilepb \
    -no-reboot \
    -nographic \
    -append "root=/dev/sda2 panic=1 rootfstype=ext4 rw console=ttyAMA0" \
    -redir tcp:2222::22 \
    -hda build/disk.img 

expect "raspberrypi login: "
send "pi\r"

expect "Password: "
send "raspberry\r"

# make the filesystem fill the main partition
expect "pi@raspberrypi:~$ "
send "sudo resize2fs /dev/sda2\r"

expect "pi@raspberrypi:~$ "
send "df -h\r"

# install the tingbot ssh key
set key_fp [open "tingbot.key.pub" r]
set key_data [read $key_fp]

expect "pi@raspberrypi:~$ "
send "mkdir -p ~/.ssh\r"

expect "pi@raspberrypi:~$ "
send "echo '$key_data' >> ~/.ssh/authorized_keys\r"

expect "pi@raspberrypi:~$ "
send "sudo service ssh restart\r"
expect "pi@raspberrypi:~$ "

system "sleep 5"

send "service ssh status\r"
expect "pi@raspberrypi:~$ "

# mount the /boot partition
send "sudo mount -t vfat /dev/sda1 /boot\r"
expect "pi@raspberrypi:~$ "

# copy the deb files to the pi
system "./retry.sh 5 scp -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -i tingbot.key -P 2222 build/tingbot-os.deb libsdl1.2debian_1.2.15-5_armhf.deb pi@localhost:"

# ssh into the vm and run the build script. This moves the main work
# into a sane shell (not expect!)
system "./retry.sh 5 sh -c 'cat build.sh | ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -i tingbot.key -p 2222 pi@localhost bash'"

send "sudo shutdown -r now\r"
expect eof