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#!/bin/bash
set -e
arch=$1
shift
repo=$@
case $arch in
x86_64) cpu=qemu64 ;;
i686) cpu=qemu32 ;;
*) exit 1 ;;
esac
img=/var/lib/buildstuff/$arch.qcow2
vport=$((32768+$RANDOM))
vhost="
-o ConnectTimeout=3
-o StrictHostKeyChecking=no
-o UserKnownHostsFile=/dev/null
-o Port=$vport user@localhost
"
start_vm() {
qemu-system-x86_64 \
-cpu $cpu -smp 4 -m 4G \
-accel kvm:tcg,thread=multi \
-device virtio-net,netdev=vlan \
-netdev user,id=vlan,hostfwd=::$vport-:22 \
-drive file=$1 &
while sleep 1; do
ssh $vhost 'curl -o /dev/null -s vesath.org' &&
break
done
cat /etc/pacman.d/mirrorlist |
ssh $vhost 'sudo dd of=/etc/pacman.d/mirrorlist'
}
stop_vm() {
ssh $vhost 'sudo poweroff' || true
wait
rm -f /tmp/$vport
}
trap_err() {
trap - ERR
trap - INT
cat <<EOF
Investigate the error with \`ssh -p $vport user@localhost\`
then press enter here to terminate the virtual machine.
EOF
read x
stop_vm
}
trap trap_err ERR
trap trap_err INT
set -E
[[ -e $img ]] || {
sudo arch.install $arch $img
sudo chown "$USER" $img
}
(( $(date +%s) - $(stat -c%Y $img) > 86400 )) && {
start_vm $img
ssh $vhost 'sudo pacman --noconfirm -Syu'
ssh $vhost 'sudo pacman --noconfirm -Su'
stop_vm
}
qemu-img create -f qcow2 -o backing_file=$img /tmp/$vport 8G
start_vm /tmp/$vport
for r in $repo; do
echo "sudo sed '/\[core\]/i [$r]\nInclude = /etc/pacman.d/mirrorlist\n' -i /etc/pacman.conf"
done | ssh $vhost
ssh $vhost 'sudo pacman --noconfirm -Syu'
ssh $vhost 'sudo pacman --noconfirm -Su'
sftp $vhost <<<"mkdir .gnupg"
sftp $vhost <<<"put $HOME/.makepkg.conf"
sftp $vhost <<<"put $HOME/.gnupg/pubring.kbx .gnupg/pubring.kbx"
sftp $vhost <<<'put -r . build'
ssh $vhost 'sudo mv build /build' # fake chroot build for db-update
ssh $vhost 'rm -fr /build/{src,pkg}' # fix source repo relocation
ssh $vhost 'cd /build; makepkg --log --noconfirm --syncdeps'
sftp $vhost <<<'get /build/*.pkg.tar.xz'
sftp $vhost <<<'get /build/*.log'
stop_vm
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