New QueueLogger logging implementation.

cliutils.nim

@@ -1,13 +1,15 @@
-import nre, terminal, strtabs, tables, unicode
+import std/[nre, terminal, strtabs, tables, unicode]
 import strutils except toUpper, toLower
 
 import ./cliutils/config
 import ./cliutils/daemonize
 import ./cliutils/procutil
+import ./cliutils/queue_logger
 
 export config
 export daemonize
 export procutil
+export queue_logger
 
 type
   TermColor = ForegroundColor or BackgroundColor

cliutils.nimble

@@ -1,6 +1,6 @@
 # Package
 
-version       = "0.8.2"
+version       = "0.9.0"
 author        = "Jonathan Bernard"
 description   = "Helper functions for writing command line interfaces."
 license       = "MIT"

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