filefunctions.lua

Ubidibity

Jun 3rd, 2025 (edited)

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-- Supplimental file save and load functions for backpackloot.lua https://pastebin.com/eDNsazPj to persist manifest between reboots
-- filefunctions.lua to be used in backpackloot.lua as local filefunctions = dofile("filefunctions.lua")
-- filefunctions.saveManifest("manifest.dat")
-- filefunctions.loadManifest("manifest.dat")
local filefunctions = {}
-- Get current day abbreviation: Mon, Tue, ..., Sun
local function getDayOfWeek()
local days = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"}
local time = os.time()
local day = os.day("%a") % 7 + 1 -- Minecraft os.day is 0-based
return days[day]
end
-- Save global stats and make a rotating daily backup
function filefunctions.saveStats(filename)
-- Backup first
local backup_name = "stats_backup_" .. getDayOfWeek() .. ".dat"
if fs.exists(filename) then
if fs.exists(backup_name) then
fs.delete(backup_name) -- we only need the most recent daily backup.
end
fs.copy(filename, backup_name)
end
-- Save main file
local file = fs.open(filename, "w")
if file then
local data = {
item_quantities = _G.item_quantities,
item_frequencies = _G.item_frequencies
}
file.write(textutils.serialize(data))
file.close()
end
end
-- Load saved global stats
function filefunctions.loadStats(filename)
if fs.exists(filename) then
local file = fs.open(filename, "r")
local data = textutils.unserialize(file.readAll())
file.close()
if data then
_G.item_quantities = data.item_quantities or {}
_G.item_frequencies = data.item_frequencies or {}
print("pre-return stats...")
for k,v in pairs(item_quantities) do
print("Qty", k, v)
end
for k,v in pairs(item_frequencies) do
print("Freq", k, v)
end
-- using _G. return item_quantities, item_frequencies
end
else
print("No data?",data==nil)
end
end
return filefunctions

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