[Command] enables parallel command execution by default

doc/json_schema.json

@@ -2107,9 +2107,9 @@
                                         "default": false
                                     },
                                     "parallel": {
-                                        "description": "Set if the command should be executed in parallel with other commands\nMight improve performance when using multiple commands, but may cause issues with some commands",
+                                        "description": "Set if the command should be executed in parallel with other commands\nImprove performance when using multiple commands, but may cause issues with some commands",
                                         "type": "boolean",
-                                        "default": false
+                                        "default": true
                                     },
                                     "key": {
                                         "$ref": "#/$defs/key"

src/detection/command/command.c

@@ -45,8 +45,8 @@ const char* ffDetectCommand(FFCommandOptions* options, FFstrbuf* result)
     FFCommandResultBundle bundle = {};
     if (!options->parallel)
         bundle.error = spawnProcess(options, &bundle.handle);
-    else
-        ffListShift(&commandQueue, &bundle);
+    else if (!ffListShift(&commandQueue, &bundle))
+        return "[BUG] command queue is empty";
 
     if (bundle.error)
         return bundle.error;

src/modules/command/command.c

@@ -131,7 +131,7 @@ void ffInitCommandOptions(FFCommandOptions* options)
     );
     ffStrbufInit(&options->text);
     options->useStdErr = false;
-    options->parallel = false;
+    options->parallel = true;
 }
 
 void ffDestroyCommandOptions(FFCommandOptions* options)