48 lines
1.4 KiB
Lua
48 lines
1.4 KiB
Lua
ardour {
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["type"] = "EditorHook",
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name = "Periodically Save Snapshot",
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author = "Ardour Team",
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description = "Save a session-snapshot periodically (every 15mins) named after the current date-time",
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}
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-- subscribe to signals
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-- http://manual.ardour.org/lua-scripting/class_reference/#LuaSignal.LuaSignal
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function signals ()
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return LuaSignal.Set():add ({[LuaSignal.LuaTimerS] = true})
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end
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-- create callback function
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function factory ()
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local _last_snapshot_time = 0 -- persistent variable
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local _snapshot_interval = 60 * 15 -- 15 minutes
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-- callback function which invoked when signal is emitted, every 100ms
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return function (signal, ref, ...)
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local now = os.time (); -- unix-time, seconds since 1970
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-- skip initial save when script is loaded
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if (_last_snapshot_time == 0) then
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_last_snapshot_time = now;
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end
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-- every 15 mins
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if (now > _last_snapshot_time + _snapshot_interval) then
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-- don't save while recording, may interfere with recording
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if Session:actively_recording() then
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-- queue 30 sec after rec-stop
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_last_snapshot_time = now - _snapshot_interval + 30
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return
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end
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_last_snapshot_time = now
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-- format date-time (avoid colon)
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local snapshot_name = os.date ("%Y-%m-%d %H.%M.%S", now)
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-- save session -- http://manual.ardour.org/lua-scripting/class_reference/#ARDOUR:Session
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Session:save_state ("backup " .. snapshot_name, false, false, false)
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end
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end
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end
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