[PATCH pmg-api 1/4] config: add log-tracker-base key

[Stoiko Ivanov <s.ivanov@proxmox.com>]

makes it possible to override the input-base parameter for
pmg-log-tracker - functionality there was added in:
9816d19 ("fix #3657: allow scanning a configurable rotated log series")

the pattern allows for a input-base with a maximal depth of 6
directories, which should cover all needs.

the default in the config is /var/log/syslog and will be explicitly
provided to pmg-log-tracker if nothing is set in pmg.conf

exposing the option in pmg.conf enables users to use a different
log location for the daily work.

Signed-off-by: Stoiko Ivanov <s.ivanov@proxmox.com>
---
 src/PMG/Config.pm | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/PMG/Config.pm b/src/PMG/Config.pm
index a2ddbb3a..6322774e 100644
--- a/src/PMG/Config.pm
+++ b/src/PMG/Config.pm
@@ -155,6 +155,12 @@ EODESC
             pattern => '^\p{PosixPrint}{1,998}$',
             default => 'Proxmox Mail Gateway <postmaster>',
         },
+        'log-tracker-base' => {
+            description => "Location of rotated mail logs, input-base argument for pmg-log-tracker",
+            type => 'string',
+            pattern => '^/([^/\0]+\/){0,6}[^/\0]+$',
+            default => '/var/log/syslog',
+        },
     };
 }
 
@@ -175,6 +181,7 @@ sub options {
         dkim_selector => { optional => 1 },
         'dkim-use-domain' => { optional => 1 },
         'admin-mail-from' => { optional => 1 },
+        'log-tracker-base' => { optional => 1 },
     };
 }
 
-- 
2.47.3