-- Script to read the system.log and show softRAID messages using GROWL.
-- Make sure the system.log is readable by this application.
-- Save this script from ScriptEditor as Application with checkbox "stay
open"

property useGrowl : true -- set this to true to get warnings via Growl
(http://growl.info/)
property updateDelay : 15 -- seconds

property scriptName : "syslogSoftRAID" -- the name of this script
property SoftRAIDAppName : "SoftRAID 3.6.app" -- the name of the softRAID
application, to get its icon

property softRAIDFilter : "SoftRAID driver" -- text to filter the syslog on

property shownItems : {} -- list of lines that have already been
processed/shown

property useDelayLoop : false -- set this to true if you want to run from
Script Editor

property onlySoftRAIDLog : true -- set this to true if you want to see only
SoftRAID

property firstLookBackTime : hours * 2 -- how far back do we look the first
time
property normalLookBackTime : 5 * updateDelay -- how far back do we look
normally

property lookBackTime : firstLookBackTime -- the time to look back

property firstReadBackLines : 1000 -- number of lines to read from syslog
the first time
property normalReadBackLines : 20 -- number of lines to read back normally

property readBackLines : firstReadBackLines -- number of lines to read from
syslog

property maxMemoryLines : 1000 -- number of lines to hold in memory


property firsttime : true -- if it is the first time we do this


-- the run handler (invoked at script startup)
on run

    --display dialog ("running")

    if useGrowl then
        registerWithGrowl()
    end if


    update()
    delay updateDelay

    if useDelayLoop then
        repeat
            update()
            delay updateDelay
        end repeat
    end if

end run



-- the idle handler (invoked every 'updateDelay' seconds)
on idle
    if useDelayLoop then
        -- we should never get here
        display alert "Internal error: idle handler called even though using
delay loop"
        quit
    end if

    update()
    return updateDelay
end idle




-- do the things we should do
on update()

    set now to current date

    if onlySoftRAIDLog then
        set logLines to do shell script "grep '" & softRAIDFilter & "'
/var/log/system.log |tail -n " & readBackLines
    else
        set logLines to do shell script "cat /var/log/system.log |tail -n  "
& readBackLines
    end if

    -- get the list of lines
    set myList to paragraphs of logLines

    -- check all lines we read
    repeat with anItem in myList

        set txt to anItem as string -- to make sure it is a normal string

        -- get the date of the line
        set datestr to word 1 of txt & space & word 2 of txt & "," & year of
now
        set h to word 3 of txt
        set m to word 4 of txt
        set s to word 5 of txt

        set timestr to h & ":" & m & space & s

        set logdate to date (datestr & space & timestr)


        set timedifference to now - logdate -- seconds

        -- if it is not too old and not handled before, we can handle it
        if (timedifference < lookBackTime) and (shownItems does not contain
anItem) then

            set txt to text (word 6) thru end of txt -- strip the timestamp
            set txt to text ((offset of ":" in txt) + 1) thru end of txt --
skip all until colon


            if (timedifference > normalLookBackTime) then
                -- if it is kinda old (the first time) we want to show the
time
                set txt to h & ":" & m & ":" & s & " " & txt
            end if


            if txt contains softRAIDFilter then
                displaySoftRAIDWarningUsingGrowl(SoftRAIDAppName, txt)
            else
                displayOtherWarningUsingGrowl("Console", txt)
            end if

            -- remember this line to prevent it from being displayed more
than once
            set end of shownItems to (anItem as string)

            -- prevent memory overflow by deleting old lines if memory is
full enough
            if (count of shownItems) > maxMemoryLines then
                delete first item of shownItems
            end if

        end if

    end repeat


    if firsttime is true then
        -- this is the first time, set some properties to normal values

        set readBackLines to normalReadBackLines
        set lookBackTime to normalLookBackTime

        set firsttime to false

    end if


end update

-- display a message using Growl
on displaySoftRAIDWarningUsingGrowl(appName, msg)
    tell application "GrowlHelperApp"
        notify with name "SoftRAID Driver system.log lines" title "SoftRAID"
description msg application name scriptName icon of application appName
    end tell
end displaySoftRAIDWarningUsingGrowl


-- display a message using Growl
on displayOtherWarningUsingGrowl(appName, msg)
    tell application "GrowlHelperApp"
        notify with name "non-SoftRAID system.log lines" title "system.log"
description msg application name scriptName icon of application appName

    end tell
end displayOtherWarningUsingGrowl


-- registerWithGrowl:
-- Registers our notifications with the "Growl" tool
on registerWithGrowl()
    set notifList to {"SoftRAID Driver system.log lines", "non-SoftRAID
system.log lines"}

    tell application "GrowlHelperApp"
        register as application scriptName all notifications notifList
default notifications notifList
    end tell

end registerWithGrowl