mirror of
https://github.com/koreader/koreader
synced 2024-11-13 19:11:25 +00:00
fadee1f5dc
Basically: * Use `extend` for class definitions * Use `new` for object instantiations That includes some minor code cleanups along the way: * Updated `Widget`'s docs to make the semantics clearer. * Removed `should_restrict_JIT` (it's been dead code since https://github.com/koreader/android-luajit-launcher/pull/283) * Minor refactoring of LuaSettings/LuaData/LuaDefaults/DocSettings to behave (mostly, they are instantiated via `open` instead of `new`) like everything else and handle inheritance properly (i.e., DocSettings is now a proper LuaSettings subclass). * Default to `WidgetContainer` instead of `InputContainer` for stuff that doesn't actually setup key/gesture events. * Ditto for explicit `*Listener` only classes, make sure they're based on `EventListener` instead of something uselessly fancier. * Unless absolutely necessary, do not store references in class objects, ever; only values. Instead, always store references in instances, to avoid both sneaky inheritance issues, and sneaky GC pinning of stale references. * ReaderUI: Fix one such issue with its `active_widgets` array, with critical implications, as it essentially pinned *all* of ReaderUI's modules, including their reference to the `Document` instance (i.e., that was a big-ass leak). * Terminal: Make sure the shell is killed on plugin teardown. * InputText: Fix Home/End/Del physical keys to behave sensibly. * InputContainer/WidgetContainer: If necessary, compute self.dimen at paintTo time (previously, only InputContainers did, which might have had something to do with random widgets unconcerned about input using it as a baseclass instead of WidgetContainer...). * OverlapGroup: Compute self.dimen at *init* time, because for some reason it needs to do that, but do it directly in OverlapGroup instead of going through a weird WidgetContainer method that it was the sole user of. * ReaderCropping: Under no circumstances should a Document instance member (here, self.bbox) risk being `nil`ed! * Kobo: Minor code cleanups.
92 lines
2.6 KiB
Lua
92 lines
2.6 KiB
Lua
local logger = require("logger")
|
|
local UIManager = require("ui/uimanager")
|
|
local time = require("ui/time")
|
|
|
|
local CommandRunner = {
|
|
pio = nil,
|
|
job = nil,
|
|
}
|
|
|
|
function CommandRunner:createEnvironmentFromTable(t)
|
|
if t == nil then return "" end
|
|
|
|
local r = ""
|
|
for k, v in pairs(t) do
|
|
r = r .. k .. "=" .. v .. " "
|
|
end
|
|
|
|
if string.len(r) > 0 then r = "export " .. r .. ";" end
|
|
return r
|
|
end
|
|
|
|
function CommandRunner:createEnvironment()
|
|
if type(self.job.environment) == "table" then
|
|
return self:createEnvironmentFromTable(self.job.environment)
|
|
end
|
|
if type(self.job.environment) == "function" then
|
|
local status, result = pcall(self.job.environment)
|
|
if status then
|
|
return self:createEnvironmentFromTable(result)
|
|
end
|
|
end
|
|
return ""
|
|
end
|
|
|
|
function CommandRunner:start(job)
|
|
assert(self.pio == nil)
|
|
assert(self.job == nil)
|
|
self.job = job
|
|
self.job.start_time = UIManager:getTime()
|
|
assert(type(self.job.executable) == "string")
|
|
local command = self:createEnvironment() .. " " ..
|
|
"sh plugins/backgroundrunner.koplugin/luawrapper.sh " ..
|
|
"\"" .. self.job.executable .. "\""
|
|
logger.dbg("CommandRunner: Will execute command " .. command)
|
|
UIManager:preventStandby()
|
|
self.pio = io.popen(command)
|
|
end
|
|
|
|
--- Polls the status of self.pio.
|
|
-- @return a table contains the result from luawrapper.sh. Returns nil if the
|
|
-- command has not been finished.
|
|
function CommandRunner:poll()
|
|
assert(self.pio ~= nil)
|
|
assert(self.job ~= nil)
|
|
local line = self.pio:read()
|
|
if line == "" then
|
|
return nil
|
|
else
|
|
if line == nil then
|
|
-- The binary crashes without output. This should not happen.
|
|
self.job.result = 223
|
|
else
|
|
line = line .. self.pio:read("*a")
|
|
logger.dbg("CommandRunner: Receive output " .. line)
|
|
local status, result = pcall(loadstring(line))
|
|
if status and result ~= nil then
|
|
for k, v in pairs(result) do
|
|
self.job[k] = v
|
|
end
|
|
else
|
|
-- The output from binary is invalid.
|
|
self.job.result = 222
|
|
end
|
|
end
|
|
UIManager:allowStandby()
|
|
self.pio:close()
|
|
self.pio = nil
|
|
self.job.end_time = time.now()
|
|
local job = self.job
|
|
self.job = nil
|
|
return job
|
|
end
|
|
end
|
|
|
|
--- Whether this is a running job.
|
|
-- @treturn boolean
|
|
function CommandRunner:pending()
|
|
return self.pio ~= nil
|
|
end
|
|
|
|
return CommandRunner
|