#!/bin/bash -
# Run the talk.

set -e

# Avoid GNOME keyring stupidity
export GNOME_KEYRING_CONTROL=
export GNOME_KEYRING_PID=

# No proxy.
#unset http_proxy
#unset https_proxy
#unset ftp_proxy

# Check the files are precreated.
if [ ! -f 1000-loop-mounting.d/fedora-29.img ]; then
    pushd 1000-loop-mounting.d
    virt-builder fedora-29
    popd
fi

if [ ! -f 2000-xz-compressed.d/Fedora-Cloud-Base-29-1.2.x86_64.raw.xz ]; then
    pushd 2000-xz-compressed.d
    wget https://download.fedoraproject.org/pub/fedora/linux/releases/29/Cloud/x86_64/images/Fedora-Cloud-Base-29-1.2.x86_64.raw.xz
    popd
fi

if [ ! -f 2200-partitioning.d/boot.img ]; then
    guestfish --ro -a 1000-loop-mounting.d/fedora-29.img -i <<EOF
download /dev/sda2 2200-partitioning.d/boot.img
download /dev/sda3 2200-partitioning.d/swap.img
# Save to hidden file.
download /dev/sda4 2200-partitioning.d/.root.img
EOF
fi

# Restore original root.img before each run.
if ! cmp -s 2200-partitioning.d/{.root.img,root.img}; then
    cp 2200-partitioning.d/{.root.img,root.img}
fi

# Create mountpoint.
mkdir -p /tmp/mnt

# Check nbd module is loaded.
sudo modprobe nbd

# Remove any old mounts, nbdkit processes etc.
./restore

# Run techtalk.
#techtalk-pse
~/d/techtalk-pse/techtalk-pse

./restore