Consolidate and improve snmptranslate usage (#14567)

* Consolidate and improve snmptranslate usage

* Fix style

* lint fixes

* fix typo

* allow multiple mib directories

* Only add mib if it is not already set

* oid first, in case we have key length issues

* if there is a full oid, don't add other mibs

* debug in ci

* more debug in ci

* better debug in ci

* remove debug

* Use numeric index

* revert dlink change

* Don't add -On twice

* unit tests and hopefully better heuristics

* remove dump and add one more set of tests

* style fixes

* handle bad input in old functions

* shortcut whole snmp_translate function

app/Console/Commands/SnmpFetch.php

@@ -56,19 +56,23 @@ class SnmpFetch extends LnmsCommand
         }
 
         $return = 0;
+        $type = $this->option('type');
+        $output = $this->option('output') ?: ($type == 'walk' ? 'table' : 'value');
 
         foreach ($device_ids as $device_id) {
             DeviceCache::setPrimary($device_id);
             $this->info(DeviceCache::getPrimary()->displayName() . ':');
 
-            $type = $this->option('type');
-            $output = $this->option('output')
-                ?: ($type == 'walk' ? 'table' : 'value');
-
             /** @var \LibreNMS\Data\Source\SnmpResponse $res */
             $res = SnmpQuery::numeric($this->option('numeric'))
                 ->$type($this->argument('oid'));
 
+            if ($type == 'translate') {
+                $this->line($res);
+
+                return 0;
+            }
+
             if (! $res->isValid()) {
                 $this->warn(trans('commands.snmp:fetch.failed'));
                 $this->line($res->getErrorMessage());