munix: add publish argument for port forwarding, fix #11

TODO: fix https://github.com/AsahiLinux/muvm/issues/178 as well

munix

@@ -14,6 +14,7 @@ GPU=1
 WAYLAND=1
 PIPEWIRE=1
 X11=0
+USING_PUBLISH=0
 export TMP=/tmp TMPDIR=/tmp TEMP=/tmp TEMPDIR=/tmp LC_ALL=C
 
 if [ ! -e "$HOST_OPENGL_DRIVER" ]; then
@@ -32,6 +33,7 @@ while [ "$#" -gt 0 ]; do
     --ro-bind) BWRAP_ARGS+=("--ro-bind" "$2" "$3"); shift 3;;
     --expose) BWRAP_ARGS+=("--bind" "$2" "$2"); shift 2;;
     --ro-expose) BWRAP_ARGS+=("--ro-bind" "$2" "$2"); shift 2;;
+    -p|--publish) USING_PUBLISH=1; MUVM_ARGS+=("--publish=$2"); shift 2;;
     --host-opengl-driver) HOST_OPENGL_DRIVER="$2"; shift 2;;
     --munix-bin-dir) SCRIPT_PATH="$2"; shift 2;;
     --muvm-bin-dir) MUVM_PATH="$2"; shift 2;;
@@ -177,6 +179,10 @@ BWRAP_ARGS+=(
   --bind "$HOST_RUNTIME_DIR/port.sock" "$XDG_RUNTIME_DIR/krun/socket/port-50000"
 )
 
+if [ "$USING_PUBLISH" -eq 1 ]; then
+  printf "\n\n\n\e[1mNote: due to a \e[31mBUG\e[39m with port publishing (-p) you have to send the first outgoing packet (e.g. ping -c1 8.8.8.8) before your ports start receiving traffic. Sorry for the inconvenience!\e[39;0m\n\n\n\n" >&2
+fi
+
 # do not 'exec' because of cleanup :)
 bwrap --unshare-all --share-net \
   --uid $MICROVM_UID --gid $MICROVM_GID \