transition to kernel

sys/boot/opus.boot

@@ -1,9 +1,6 @@
 -- Loads the Opus environment regardless if the file system is local or not
-local colors = _G.colors
 local fs     = _G.fs
 local http   = _G.http
-local term   = _G.term
-local window = _G.window
 
 local BRANCH   = 'develop-1.8'
 local GIT_REPO = 'kepler155c/opus/' .. BRANCH
@@ -17,46 +14,6 @@ sandboxEnv.BRANCH = BRANCH
 
 _G.debug = function() end
 
-local terminal = term.current()
-local w, h = term.getSize()
-local kernelWindow = window.create(terminal, 1, 1, w, h, false)
-term.redirect(kernelWindow)
-kernelWindow.parent = terminal
-local splashWindow
-
-local function splash()
-  splashWindow = window.create(terminal, 1, 1, w, h, false)
-  splashWindow.setTextColor(colors.white)
-  if splashWindow.isColor() then
-    splashWindow.setBackgroundColor(colors.black)
-    splashWindow.clear()
-    local opus = {
-      'fffff00',
-      'ffff07000',
-      'ff00770b00 4444',
-      'ff077777444444444',
-      'f07777744444444444',
-      'f0000777444444444',
-      '070000111744444',
-      '777770000',
-      '7777000000',
-      '70700000000',
-      '077000000000',
-    }
-    for k,line in ipairs(opus) do
-      splashWindow.setCursorPos((w - 18) / 2, k + (h - #opus) / 2)
-      splashWindow.blit(string.rep(' ', #line), string.rep('a', #line), line)
-    end
-  end
-
-  local str = 'Loading Opus OS...'
-  print(str)
-  splashWindow.setCursorPos((w - #str) / 2, h)
-  splashWindow.write(str)
-  splashWindow.setVisible(true)
-  return splashWindow
-end
-
 local function makeEnv()
   local env = setmetatable({ }, { __index = _G })
   for k,v in pairs(sandboxEnv) do
@@ -92,7 +49,6 @@ end
 
 local args = { ... }
 
-splash()
 local s, m = pcall(function()
   -- Install require shim
   if fs.exists('sys/apis/injector.lua') then
@@ -106,37 +62,12 @@ local s, m = pcall(function()
     fs.mount('', 'gitfs', GIT_REPO)
   end
 
-  -- runLevel 6 if passed a program to run
-  -- otherwise, runLevel 7 (multishell)
-  run('sys/apps/shell', 'sys/kernel.lua', args[1] and 6 or 7)
-
-  kernel.hook('kernel_ready', function()
-    splashWindow.setVisible(false)
-    kernelWindow.setVisible(true)
-    if args[1] then
-      local s, m = _G.kernel.run({
-        title = 'startup',
-        path = 'sys/apps/shell',
-        args = args,
-        haltOnExit = true,
-      })
-      if s then
-        _G.kernel.raise(s.uid)
-      else
-        error(m)
-      end
-    end
-
-  end)
-  _G.kernel.start()
+  run('sys/apps/shell', 'sys/kernel.lua', table.unpack(args))
 end)
 
 if not s then
-  splashWindow.setVisible(false)
-  kernelWindow.setVisible(true)
   print('\nError loading Opus OS\n')
   _G.printError(m .. '\n')
-  term.redirect(terminal)
 end
 
 if fs.restore then

sys/extensions/0.splash.lua

@@ -0,0 +1,44 @@
+if false then
+  local colors = _G.colors
+  local term   = _G.term
+  local window = _G.window
+
+  local terminal = term.current()
+  local w, h = term.getSize()
+
+  local splashWindow = window.create(terminal.parent, 1, 1, w, h, false)
+  splashWindow.setTextColor(colors.white)
+  if splashWindow.isColor() then
+    splashWindow.setBackgroundColor(colors.black)
+    splashWindow.clear()
+    local opus = {
+      'fffff00',
+      'ffff07000',
+      'ff00770b00 4444',
+      'ff077777444444444',
+      'f07777744444444444',
+      'f0000777444444444',
+      '070000111744444',
+      '777770000',
+      '7777000000',
+      '70700000000',
+      '077000000000',
+    }
+    for k,line in ipairs(opus) do
+      splashWindow.setCursorPos((w - 18) / 2, k + (h - #opus) / 2)
+      splashWindow.blit(string.rep(' ', #line), string.rep('a', #line), line)
+    end
+  end
+
+  local str = 'Loading Opus OS...'
+  print(str)
+  splashWindow.setCursorPos((w - #str) / 2, h)
+  splashWindow.write(str)
+
+  terminal.setVisible(false)
+  splashWindow.setVisible(true)
+
+  kernel.hook('kernel_ready', function()
+    kernel.window.setVisible(true)
+  end)
+end

sys/extensions/1.device.lua

@@ -4,7 +4,7 @@ local Peripheral = require('peripheral')
 
 _G.device = Peripheral.getList()
 
-_G.device.terminal = _G.kernel.terminal.parent
+_G.device.terminal = _G.kernel.terminal
 _G.device.terminal.side = 'terminal'
 _G.device.terminal.type = 'terminal'
 _G.device.terminal.name = 'terminal'

sys/extensions/3.network.lua

@@ -1,4 +1,5 @@
 local kernel = _G.kernel
+local os     = _G.os
 
 _G.network = { }
 
@@ -18,4 +19,5 @@ end)
 
 if _G.device.wireless_modem then
 	startNetwork()
+	os.sleep(0) -- give the network a cycle to start
 end

sys/kernel.lua

@@ -6,8 +6,6 @@ _G.kernel = {
   UID = 0,
   hooks = { },
   routines = { },
-  terminal = _G.term.current(),
-  window = _G.term.current(),
 }
 
 local fs     = _G.fs
@@ -15,6 +13,11 @@ local kernel = _G.kernel
 local os     = _G.os
 local shell  = _ENV.shell
 local term   = _G.term
+local window = _G.window
+
+local w, h = term.getSize()
+kernel.terminal = term.current()
+kernel.window = window.create(kernel.terminal, 1, 1, w, h, false)
 
 local focusedRoutineEvents = Util.transpose {
   'char', 'key', 'key_up',
@@ -77,6 +80,9 @@ function Routine:resume(event, ...)
       self.filter = result
     else
       _G.printError(result)
+      if self.haltOnError then
+        error(result)
+      end
     end
     if coroutine.status(self.co) == 'dead' then
       Util.removeByValue(kernel.routines, self)
@@ -108,7 +114,7 @@ function kernel.newRoutine(args)
   routine.uid = kernel.UID
   routine.timestamp = os.clock()
   routine.env = args.env or Util.shallowCopy(shell.getEnv())
-  routine.terminal = args.terminal or kernel.terminal
+  routine.terminal = args.terminal or kernel.window
   routine.window = args.window or kernel.window
 
   return routine
@@ -127,7 +133,7 @@ function kernel.launch(routine)
     end
 
     if not result and err and err ~= 'Terminated' then
-      _G.printError(tostring(err))
+      error(err, 2)
     end
   end)
 
@@ -219,19 +225,22 @@ function kernel.start()
       local eventData = { os.pullEventRaw() }
       local event = table.remove(eventData, 1)
       kernel.event(event, eventData)
-    until event == 'kernel_halt' or not kernel.routines[1]
+    until event == 'kernel_halt'
   end)
 
-  kernel.window.setVisible(true)
   if not s then
+    kernel.window.setVisible(true)
+    term.redirect(kernel.window)
     print('\nCrash detected\n')
     _G.printError(m)
   end
   term.redirect(kernel.terminal)
 end
 
-local function init(runLevel)
-  runLevel = tonumber(runLevel) or error('Invalid run level')
+local function init(...)
+  local args = { ... }
+
+  local runLevel = #args > 0 and 6 or 7
 
   local dir = 'sys/extensions'
   local files = fs.list(dir)
@@ -245,11 +254,32 @@ local function init(runLevel)
       end
     end
   end
+
   os.queueEvent('kernel_ready')
+
+  if args[1] then
+    kernel.hook('kernel_ready', function()
+      local s, m = kernel.run({
+        title = args[1],
+        path = 'sys/apps/shell',
+        args = args,
+        haltOnExit = true,
+        terminal = kernel.terminal,
+      })
+      if s then
+        kernel.raise(s.uid)
+      else
+        error(m)
+      end
+    end)
+  end
 end
 
 kernel.run({
   fn = init,
   title = 'init',
+  haltOnError = true,
   args = { ... },
 })
+
+kernel.start()

sys/services/log.lua

@@ -22,7 +22,7 @@ end
 -- need: window.getParent()
 --       window.copy(target)
 
-local terminal = _G.kernel.terminal.parent
+local terminal = _G.kernel.terminal
 local w, h = kernel.window.getSize()
 local win = window.create(kernel.window, 1, 1, w, h + 50, false)
 
@@ -52,12 +52,12 @@ Terminal.scrollable(win, kernel.window)
 -- update kernel with new window, set this tab with the new kernal window
 local routine = kernel.getCurrent()
 for _,r in pairs(kernel.routines) do
-  if r.terminal == kernel.terminal then
+  if r.terminal == kernel.window then
     r.terminal = win
     r.window = win
   end
 end
-kernel.terminal = win
+--kernel.terminal = win
 kernel.window = win
 routine.terminal = win
 routine.window = win