Questions about archives

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logwatch man has:

 --archives
    Each log-file-group has basic logfiles (i.e. /var/log/messages) as we=
ll
as  archives  (i.e.  /var/log/mes=E2=80=90
    sages.?  or  /var/log/messages.?.gz).   When used with "--range all",=
 this
option will make Logwatch search
    through the archives in addition to the regular logfiles.  For  other=

values  of  --range,  Logwatch  will
    search the appropriate archived logs.

Which seems to indicate that searching the archives is disabled by defaul=
t.
But this is not the case:

# Default config here...
=2E..
$Config{'archives'} =3D 1;

It has apparently been this way for a long time - since at least 2010 whe=
n svn
starts.

This probably needs to stay this way for now since it's been that way for=
 so
long, but the problem (aside from incorrect documentation) is that there =
seems
to be no way to disable searching the archives.

This seems to be a simple fix though:

--- a/scripts/logwatch.pl
+++ b/scripts/logwatch.pl
@@ -204,7 +204,7 @@ my ($tmp_mailto, $tmp_savefile);
              "s|service=3Ds@" =3D> \@TempServiceList,
              "m|mailto=3Ds"   =3D> \$tmp_mailto,
              "filename=3Ds"   =3D> \$tmp_savefile,
-             "a|archives"   =3D> \$Config{'archives'},
+             "a|archives!"  =3D> \$Config{'archives'},
              "debug=3Ds"      =3D> \$Config{'debug'},
              "r|range=3Ds"    =3D> \$Config{'range'},
              "n|numeric"    =3D> \$Config{'numeric'},

allows specifying --noarchives.  I'll work on a PR to update that and som=
e
docs.  It's not a big deal though I think, because in practice I think
archives need to always be processed in order to capture all of the relev=
ant logs.


Next issue is how many archives get processed.  The code has:

         # range is something else, and we need to get one
       # day ahead. A day has 86400 seconds.  (We double
       # that to deal with different timezones.)
       $CheckTime =3D $time_t[0] - 86400*2;

I'm noticing this because I'm dealing with some very large log files that=
 get
rotated daily.  Even processing an extra day can end up filling the disk =
with
the cache file that logwatch creates.  The doubling has been there for at=

least the same amount of time.  But I'm really not sure it's necessary.  =
What
kind of different timezone thing could we be dealing with?


--=20
Orion Poplawski
he/him/his  - surely the least important thing about me
Manager of IT Systems                      720-772-5637
NWRA, Boulder Office                  FAX: 303-415-9702
3380 Mitchell Lane                       [email protected]
Boulder, CO 80301                 https://www.nwra.com/


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