testing version of LuaBIOS and OpenOS

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

data/OpenOS/bin/sh.lua

@@ -0,0 +1,50 @@
+local shell = require("shell")
+local tty = require("tty")
+local text = require("text")
+local sh = require("sh")
+
+debugprint("a")
+
+local args = shell.parse(...)
+
+shell.prime()
+
+debugprint("b")
+
+if #args == 0 then
+    debugprint("c")
+  local has_profile
+  local input_handler = {hint = sh.hintHandler}
+  while true do
+    if io.stdin.tty and io.stdout.tty then
+      if not has_profile then -- first time run AND interactive
+        has_profile = true
+        dofile("/etc/profile.lua")
+      end
+      if tty.getCursor() > 1 then
+        io.write("\n")
+      end
+      io.write(sh.expand(os.getenv("PS1") or "$ "))
+    end
+    tty.window.cursor = input_handler
+    local command = io.stdin:readLine(false)
+    tty.window.cursor = nil
+    if command then
+      command = text.trim(command)
+      if command == "exit" then
+        return
+      elseif command ~= "" then
+        --luacheck: globals _ENV
+        local result, reason = sh.execute(_ENV, command)
+        if not result and reason then
+          io.stderr:write(tostring(reason), "\n")
+        end
+      end
+    elseif command == nil then -- false only means the input was interrupted
+      return -- eof
+    end
+  end
+else
+  -- execute command.
+  return sh.execute(...)
+end