vmtest 0.18.0

Helps run your tests in virtual machines
Documentation 
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# This is the entrypoint for vmtest commands in both kernel and image targets.
# We use a small rendering engine so it's easier to read/write more complex logic.

# Propagate current working directory on host into guest if requested
{{ if should_cd }}
cd { host_shared }
{{ endif }}

# Discover where the output chardev is located
vport=
for dir in /sys/class/virtio-ports/*; do
    if [[ "$(cat "$dir/name")" == "{ command_output_port_name }" ]]; then
        vport_name=$(basename "$dir")
        vport="/dev/$vport_name"
    fi
done

# Send the rest of the script to the output chardev
if [[ -n "$vport" ]]; then
    exec > "$vport"
    exec 2>&1
else
    # Make a missing serial port a soft error. We don't necessarily need
    # streamed command output -- it's completely a UX thing. It's more
    # likely this fails on images.
    echo >&2 "vmtest: Failed to locate command output virtio-serial port."
    echo >&2 "vmtest: Falling back to qemu-guest-agent output capture."
fi

# Run user supplied command
{ command }