Watch for changes in User Launch Agents

function writeStringToFileWithMode(aString, aPath, aMode)
local this_file
this_file = io.open(aPath, aMode)
this_file:write(aString)
this_file:close()
end

function myFolderWatch(files)
    local str = "Launch Agents folder was modified on " .. os.date() .. " :\n\t"
    local this_path = os.getenv("HOME") .. "/Desktop/LaunchFolderModified.txt"
    local ignore = "DS_Store"
    local count = 0

        for _,file in pairs (files) do
            count = count + 1
            i = string.find(file, ignore)
            if not i then
            str = str .. file .. "\n\t"
            else
                if count == 1 then
                str = "\n"
                end
            end
        end
    str = str .. "\n"
    writeStringToFileWithMode(str, this_path, "a")

    if string.len(str) > 2 then
    hs.alert.show("Launch Agents folder was modified.")
    end
end

local aWatcher = hs.pathwatcher.new(os.getenv("HOME") .. "/Library/LaunchAgents/", myFolderWatch):start()