mirror of https://github.com/octoleo/lsyncd.git
88 lines
2.6 KiB
Lua
88 lines
2.6 KiB
Lua
-----
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-- User configuration file for lsyncd.
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-- This needs lsyncd >= 2.0.3
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--
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-- This configuration will execute a command on the remote host
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-- after every successfullycompleted rsync operation.
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-- for example to restart servlets on the target host or so.
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local rsyncpostcmd = {
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-- based on default rsync.
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default.rsync,
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-- for this config it is important to keep maxProcesses at 1, so
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-- the postcmds will only be spawned after the rsync completed
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maxProcesses = 1,
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-- called whenever something is to be done
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action = function(inlet)
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local event = inlet.getEvent()
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local config = inlet.getConfig()
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-- if the event is a blanket event and not the startup,
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-- its there to spawn the webservice restart at the target.
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if event.etype == "Blanket" then
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-- uses rawget to test if "isPostcmd" has been set without
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-- triggering an error if not.
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local isPostcmd = rawget(event, "isPostcmd")
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if event.isPostcmd then
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spawn(event, "/usr/bin/ssh",
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config.host, config.postcmd)
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return
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else
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-- this is the startup, forwards it to default routine.
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return default.rsync.action(inlet)
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end
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error("this should never be reached")
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end
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-- for any other event, a blanket event is created that
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-- will stack on the queue and do the postcmd when its finished
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local sync = inlet.createBlanketEvent()
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sync.isPostcmd = true
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-- the original event is simply forwarded to the normal action handler
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return default.rsync.action(inlet)
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end,
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-- called when a process exited.
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-- this can be a rsync command, the startup rsync or the postcmd
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collect = function(agent, exitcode)
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-- for the ssh commands 255 is network error -> try again
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local isPostcmd = rawget(agent, "isPostcmd")
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if not agent.isList and agent.etype == "Blanket" and isPostcmd then
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if exitcode == 255 then
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return "again"
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end
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return
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else
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--- everything else, forward to default collection handler
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return default.collect(agent,exitcode)
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end
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error("this should never be reached")
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end
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-- called before anything else
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-- builds the target from host and targetdir
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prepare = function(config)
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if not config.host then
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error("rsyncpostcmd neets 'host' configured", 4)
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end
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if not config.targetdir then
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error("rsyncpostcmd needs 'targetdir' configured", 4)
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end
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if not config.target then
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config.target = config.host .. ":" .. config.targetdir
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end
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return default.rsync.prepare(config)
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end
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}
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sync {
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rsyncpostcmd,
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source = "src",
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host = "beetle",
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targetdir = "/path/to/trg",
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postcmd = "/usr/local/bin/restart-servelt.sh",
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}
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