New QueueLogger logging implementation.

cliutils/queue_logger.nim

@@ -0,0 +1,25 @@
+import std/[logging]
+
+type
+  QueuedLogMessage* = tuple[lvl: Level, msg: string]
+
+  QueueLogger* = ref object of Logger
+    queue: seq[QueuedLogMessage]
+
+proc newQueueLogger*(
+  levelThreshold = lvlAll,
+  fmtStr = logging.defaultFmtStr): QueueLogger =
+
+  new result
+  result.fmtStr = fmtStr
+  result.levelThreshold = levelThreshold
+  result.queue = newSeq[QueuedLogMessage]()
+
+method log*(logger: QueueLogger, level: Level, args: varargs[string, `$`]) =
+  if level >= logger.levelThreshold:
+    logger.queue.add((level, substituteLog(logger.fmtStr, level, args)))
+
+proc clearQueue*(logger: QueueLogger) =
+  logger.queue = newSeq[QueuedLogMessage]()
+
+func messages*(logger: QueueLogger): seq[QueuedLogMessage] = logger.queue