Is there a log viewer for displaying Ruby log files from any of its loggers (be it l4r or their basic logger)? Some kind of gui app that opens a log file and can support simple queries such as INFO only?
Apache Chainsaw V2 can load regular text log files, allowing you to seach, colorize & filter using expressions (like level == info)...just configure Chainsaw using a LogFilePatternReceiver, and your file's log contents will show up in a tab in the UI (the receiver does support tailing).
Chinsaw V2 is written in Java, but the receiver will parse any log file and Chainsaw will display the events.