Reinstate sharing ~/Public is smbd is available. Close #76

This is a "bonus item". Samba, specifically smbd, is not a hard requirement of Quickemu, but if present quickemu will enable Samba file sharing.

README.md

@@ -34,6 +34,7 @@ comprehensive support for macOS and Windows**.
   * Full SPICE support including host/guest clipboard sharing
   * VirtIO-webdavd file sharing for Linux and Windows guests
   * VirtIO-9p file sharing for Linux and macOS guests
+  * Samba file sharing for Linux, macOS and Windows guests (*if `smbd` is installed on the host*)
   * VirGL acceleration
   * USB device pass-through
   * Smartcard pass-through

quickemu

@@ -615,6 +615,12 @@ function vm_boot() {
     fi
   fi
 
+  # If smbd is available and ~/Public is present export it to the guest via samba
+  if [[ -e "/usr/sbin/smbd" && -n ${PUBLIC} ]]; then
+      NET="${NET},smb=${HOME}"
+      echo " - smbd:     On guest: smb://10.0.2.4/qemu"
+  fi
+
   enable_usb_passthrough
 
   # Boot the VM