Better osx support and EMCO tab change event (#26)

* Raise event after changing tabs
* improve exists/isDir to use lfs since we have it by default. Makes it more OSX compatibile
* Add some whitespace in the raw html logs

src/resources/demontools.lua

@@ -7,23 +7,39 @@ local DemonTools = {}
 local cheatConsole = Geyser.MiniConsole:new({name = "DemonnicCheatConsole", width = 4000, wrapWidth = 10000, color = "black"})
 cheatConsole:hide()
 local function exists(path)
-  local ok, err, code = os.rename(path, path)
-  if not ok and code == 13 then
+  path = path:gsub([[\]], "/")
+  if path:ends("/") then
+    path = path:sub(1,-2)
+  end
+  local ok, err, code = lfs.attributes(path)
+  if ok then
     return true
   end
-  return ok, err
+  if err:lower():find("no such file or directory") then
+    return false
+  end
+  return ok, err, code
 end
 
 local function isWindows()
   return package.config:sub(1, 1) == [[\]]
 end
 
 local function isDir(path)
-  path = path:gsub("\\", "/")
-  if not path:ends("/") then
-    path = path .. "/"
+  if not exists(path) then return false end
+    path = path:gsub([[\]], "/")
+  if path:ends("/") then
+    path = path:sub(1,-2)
   end
-  return exists(path)
+  local ok, err, code = lfs.attributes(path, "mode")
+  if ok then
+    if ok == "directory" then
+      return true
+    else
+      return false
+    end
+  end
+  return ok, err, code
 end
 
 local function mkdir_p(path)

src/resources/emco.lua

@@ -644,6 +644,7 @@ function EMCO:switchTab(tabName)
   end
   self.mc[tabName]:show()
   self.currentTab = tabName
+  raiseEvent("EMCO tab change", self.name, oldTab, tabName)
 end
 
 function EMCO:createComponentsForTab(tabName)

src/resources/loggingconsole.lua

@@ -157,8 +157,11 @@ end
 function LoggingConsole:writeToLog(str)
   local fileName = self:getFullFilename()
   self:createPathIfNotExists()
-  if self:getExtension() == "html" and not io.exists(fileName) then
-    str = htmlHeader .. str
+  if self:getExtension() == "html" then
+    if not io.exists(fileName) then
+      str = htmlHeader .. str
+    end
+    str = str .. "\n" -- html doesn't care about the extra whitespace, but it makes the raw file much easier to read
   end
   local file, err = io.open(fileName, "a")
   if not file then