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89 lines
2.6 KiB
Lua
89 lines
2.6 KiB
Lua
local Device = require("ui/device")
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local DEBUG = require("dbg")
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local OTAManager = {
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ota_server = "http://vislab.bjmu.edu.cn/apps/koreader/ota/",
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ota_channel = "nightly", -- or "stable"
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zsync_template = "koreader-%s-latest-%s.zsync",
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installed_package = "ota/koreader.installed.tar",
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package_indexfile = "ota/package.index",
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updated_package = "ota/koreader.updated.tar",
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}
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function OTAManager:getOTAModel()
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if Device:isKindle() then
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return "kindle"
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elseif Device:isKobo() then
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return "kobo"
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else
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return ""
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end
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end
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function OTAManager:getOTAChannel()
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return self.ota_channel
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end
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function OTAManager:setOTAChannel(channel)
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-- channel should be "nightly" or "stable"
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self.ota_channel = channel
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end
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function OTAManager:getZsyncFilename()
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return self.zsync_template:format(self:getOTAModel(), self:getOTAChannel())
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end
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function OTAManager:checkUpdate()
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local http = require("socket.http")
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local ltn12 = require("ltn12")
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local zsync_file = self:getZsyncFilename()
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local ota_zsync_file = self.ota_server .. zsync_file
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local local_zsync_file = "ota/" .. zsync_file
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-- download zsync file from OTA server
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local r, c, h = http.request{
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url = ota_zsync_file,
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sink = ltn12.sink.file(io.open(local_zsync_file, "w"))}
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-- parse OTA package version
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if c ~= 200 then return end
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local ota_package = nil
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local zsync = io.open(local_zsync_file, "r")
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if zsync then
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for line in zsync:lines() do
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ota_package = line:match("^Filename:%s*(.-)%s*$")
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if ota_package then break end
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end
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zsync:close()
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end
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local local_version = io.open("git-rev", "r"):read()
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local ota_version = nil
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if ota_package then
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ota_version = ota_package:match(".-(v%d.-)%.tar")
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end
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-- return ota package version if package on OTA server has version
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-- larger than the local package version
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if ota_version and ota_version > local_version then
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return ota_version
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elseif ota_version and ota_version == local_version then
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return 0
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end
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end
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function OTAManager:_buildLocalPackage()
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return os.execute(string.format(
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"./tar cvf %s -C .. -T %s --no-recursion",
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self.installed_package, self.package_indexfile))
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end
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function OTAManager:zsync()
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if self:_buildLocalPackage() == 0 then
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return os.execute(string.format(
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"./zsync -i %s -o %s -u %s %s &",
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self.installed_package, self.updated_package,
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self.ota_server, "ota/" .. self:getZsyncFilename()
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))
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end
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end
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return OTAManager
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