LuaLogging: A simple API to use logging features in Lua

Socket appender

This appender can be used to send log requests through a socket. Socket appender relies on LuaSocket to do its job.
Upon each log request a connection is opened, the message is sent and the connection is closed.

function logging.socket {
    hostname = string,
    port = number,

    [logPattern = string,]
    [logPatterns = {
      [logging.DEBUG = string,]
      [logging.INFO  = string,]
      [logging.WARN  = string,]
      [logging.ERROR = string,]
      [logging.FATAL = string,]
    },]
    [timestampPattern = string,]
    [logLevel = log-level-constant,]
}

hostname:
Hostname can be an IP address or a host name of the server where the log message will be sent.
port:
The port must be an integer number in the range [1..64K).
logPatterns:
A table with logPattern strings indexed by the log-levels. A logPattern specifies how the message is written.
If this parameter is omitted, a patterns table will be created with the parameter logPattern as the default value for each log-level. If logPattern also is omitted then each level will fall back to the current default setting, see logging.defaultLogPatterns.
logPattern:
This value will be used as the default value for each log-level that was omitted in logPatterns.
timestampPattern:
This is an optional parameter that can be used to specify a date/time formatting in the log message. See logging.date for the format. The default is taken from logging.defaultTimestampPattern().
logLevel:
The initial log-level to set for the created logger.

Example

require"logging.socket"

local logger = logging.socket {
  hostname = "localhost",
  port = 5000,
}

logger:info("logging.socket test")
logger:debug("debugging...")
logger:error("error!")