#!/bin/sh

path=$1;
DISK_GB=4;
CPU_COUNT=8;
MEM_MB=2048;

if [ $# -eq 0 ]; then
	name="vm_$(date +%s)"
	path="/tmp/$name"
fi

echo "[mk_vm.sh] creating '$path'";

mkdir -p "$path";
cd "$path";

if ! [ -f ./arch.iso ]; then
	wget "http://archlinux.mirrors.ovh.net/archlinux/iso/latest/archlinux-x86_64.iso" -O "./arch.iso";
fi

if ! [ -f ./root.img ]; then
	qemu-img create root.img "$DISK_GB"G;
fi

# ARGS_GRAPHICS="-display egl-headless"
# ARGS_GRAPHICS="-nographic"

ARGS="-drive file=root.img,format=raw -cdrom arch.iso -boot d -smp $CPU_COUNT -m $MEM_MB $ARGS_GRAPHICS"
screen -S vm qemu-system-x86_64 $ARGS;