feat(legacy): disable services check when missing systemctl (#2160)

legacy/application/check.php

@@ -45,6 +45,11 @@ function checkDatabaseDependencies()
         && in_array('pgsql', $extensions);
 }
 
+function with_systemd()
+{
+    return !empty(shell_exec('which systemctl'));
+}
+
 /**
  * Check that all external services are configured correctly and return an associative
  * array with the results.
@@ -53,15 +58,20 @@ function checkDatabaseDependencies()
  */
 function checkExternalServices()
 {
-    return [
+    $result = [
         'database' => checkDatabaseConfiguration(),
-        'analyzer' => checkAnalyzerService(),
-        'pypo' => checkPlayoutService(),
-        'liquidsoap' => checkLiquidsoapService(),
         'rabbitmq' => checkRMQConnection(),
-        'celery' => checkCeleryService(),
-        'api' => checkApiService(),
     ];
+
+    if (with_systemd()) {
+        $result['analyzer'] = checkAnalyzerService();
+        $result['pypo'] = checkPlayoutService();
+        $result['liquidsoap'] = checkLiquidsoapService();
+        $result['celery'] = checkCeleryService();
+        $result['api'] = checkApiService();
+    }
+
+    return $result;
 }
 
 /**

legacy/application/configs/config-check.php

@@ -15,12 +15,15 @@ $postgres = $phpDependencies['postgres'];
 
 $database = $externalServices['database'];
 $rabbitmq = $externalServices['rabbitmq'];
+$systemd = with_systemd();
 
+if ($systemd) {
     $pypo = $externalServices['pypo'];
     $liquidsoap = $externalServices['liquidsoap'];
     $analyzer = $externalServices['analyzer'];
     $celery = $externalServices['celery'];
     $api = $externalServices['api'];
+}
 
 $r1 = array_reduce($phpDependencies, 'booleanReduce', true);
 $r2 = array_reduce($externalServices, 'booleanReduce', true);
@@ -155,6 +158,7 @@ $result = $r1 && $r2;
                         </td>
                     <?php } ?>
                 </tr>
+                <?php if ($systemd) { ?>
                     <tr class="<?php echo $analyzer ? 'success' : 'danger'; ?>">
                         <td class="component">
                             Media Analyzer
@@ -250,6 +254,7 @@ $result = $r1 && $r2;
                             </td>
                         <?php } ?>
                     </tr>
+                <?php } ?>
             </tbody>
         </table>
     </div>

legacy/application/views/scripts/systemstatus/index.phtml

@@ -10,11 +10,14 @@ $postgres = $phpDependencies["postgres"];
 $database =      $externalServices["database"];
 $rabbitmq =      $externalServices["rabbitmq"];
 
-$pypo =          $externalServices["pypo"];
-$liquidsoap =    $externalServices["liquidsoap"];
-$analyzer =      $externalServices["analyzer"];
+$systemd = with_systemd();
+if ($systemd) {
+    $pypo = $externalServices['pypo'];
+    $liquidsoap = $externalServices['liquidsoap'];
+    $analyzer = $externalServices['analyzer'];
     $celery = $externalServices['celery'];
     $api = $externalServices['api'];
+}
 
 $r1 = array_reduce($phpDependencies, "booleanReduce", true);
 $r2 = array_reduce($externalServices, "booleanReduce", true);
@@ -94,6 +97,7 @@ $result = $r1 && $r2;
             ?>
             </td>
         </tr>
+        <?php if ($systemd) { ?>
             <tr>
                 <td class="component">
                     Media Analyzer
@@ -199,6 +203,7 @@ $result = $r1 && $r2;
                 ?>
                 </td>
             </tr>
+        <?php } ?>
     </tbody>
     <tr id="partitions" class="even">
         <th colspan="5"><?php echo _("Disk Space") ?></th>