v0.8.1 - Fixed a couple bugs involving the shell crashing and fetch. Added proper shell error handling.

halyde/core/boot.lua

@@ -1,7 +1,7 @@
 local loadfile = ...
 local filesystem = loadfile("/halyde/lib/filesystem.lua")(loadfile)
 
-_G._OSVERSION = "Halyde 0.8.0"
+_G._OSVERSION = "Halyde 0.8.1"
 
 function _G.import(module, ...)
   local args = table.pack(...)

halyde/core/shell.lua

@@ -41,6 +41,9 @@ function _G.shell.run(command)
   end
   -- execute the program
   local foundfile = false
+  if not args[1] then
+    return
+  end
   if filesystem.exists(args[1]) then
     foundfile = true
     local path = args[1]
@@ -60,7 +63,15 @@ function _G.shell.run(command)
           if args[1] == file:match("(.+)%.[^%.]+$") then
             foundfile = true
             table.remove(args, 1)
-            import(item..file, table.unpack(args))
+            local function runCommand()
+              import(item..file, table.unpack(args))
+            end
+            local result, reason = xpcall(runCommand, function(errMsg)
+              return errMsg .. "\n\n" .. debug.traceback()
+            end)
+            if not result then
+              print("\27[91m" .. reason)
+            end
             break
           end
         end

halyde/core/termlib.lua

@@ -41,7 +41,13 @@ gpu.setBackground(defaultBackgroundColor)
 
 local function scrollDown()
   if gpu.copy(0,1,width,height,0,-1) then
-    gpu.set(1,height,string.rep(" ",width))
+    local prevForeground = gpu.getForeground()
+    local prevBackground = gpu.getBackground()
+    gpu.setForeground(defaultForegroundColor)
+    gpu.setBackground(defaultBackgroundColor)
+    gpu.fill(1, height, width, 1, " ")
+    gpu.setForeground(prevForeground)
+    gpu.setBackground(prevBackground)
     termlib.cursorPosY=height
   end
 end