testing version of LuaBIOS and OpenOS

people were having issues getting them to work so now we promote consistency

data/OpenOS/bin/label.lua

@@ -0,0 +1,49 @@
+local shell = require("shell")
+local devfs = require("devfs")
+local comp = require("component")
+
+local args, options = shell.parse(...)
+if #args < 1 then
+  io.write("Usage: label [-a] <device> [<label>]\n")
+  io.write(" -a  Device is specified via label or address instead of by path.\n")
+  return 1
+end
+
+local filter = args[1]
+local label = args[2]
+
+local proxy, reason
+
+if options.a then
+  for addr in comp.list() do
+    if addr:sub(1, filter:len()) == filter then
+      proxy, reason = comp.proxy(addr)
+      break
+    end
+    local tmp_proxy = comp.proxy(addr)
+    local tmp_label = devfs.getDeviceLabel(tmp_proxy)
+    if tmp_label == filter then
+      proxy = tmp_proxy
+      break
+    end
+  end
+else
+  proxy, reason = devfs.getDevice(filter)
+end
+
+if not proxy then
+  io.stderr:write(reason..'\n')
+  return 1
+end
+
+if #args < 2 then
+  local label = devfs.getDeviceLabel(proxy)
+  if label then
+    print(label)
+  else
+    io.stderr:write("no label\n")
+    return 1
+  end
+else
+  devfs.setDeviceLabel(proxy, label)
+end