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koreader/datastorage.lua
2016-01-03 00:47:44 -08:00

39 lines
1.1 KiB
Lua

-- need low-level mechnism to detect android to avoid recursive dependency
local isAndroid = pcall(require, "android")
local lfs = require("libs/libkoreader-lfs")
local DataStorage = {}
function DataStorage:getDataDir()
local data_dir
if isAndroid then
data_dir = "/sdcard/koreader"
elseif os.getenv("UBUNTU_APPLICATION_ISOLATION") then
local app_id = os.getenv("APP_ID")
local package_name = app_id:match("^(.-)_")
-- confinded ubuntu app has write access to this dir
data_dir = os.getenv("XDG_DATA_HOME") .. "/" .. package_name
else
data_dir = "."
end
if lfs.attributes(data_dir, "mode") ~= "directory" then
lfs.mkdir(data_dir)
end
return data_dir
end
local function initDataDir()
local data_dir = DataStorage:getDataDir()
local sub_data_dirs = {"cache", "clipboard", "data", "history", "ota", "screenshots"}
for _, dir in ipairs(sub_data_dirs) do
local sub_data_dir = data_dir .. "/" .. dir
if lfs.attributes(sub_data_dir, "mode") ~= "directory" then
lfs.mkdir(sub_data_dir)
end
end
end
initDataDir()
return DataStorage