Easy log rotation for Node.js
- Output your logs to time-rotated log files.
- Optionally gzip the logs once they are no longer current
- Optionally maintain a symlink to the currently active log file
- Native Streams2 (0.10.x+) with backwards compatibility
Can directly plug into smart-tee, e.g.:
node foo.js 2>&1 | smart-tee --s stdout --s stream-file-archive --path logs/app-%Y-%m-%d.log
var rotator =path: "logs/app-%Y-%m-%d.log" // Write logs rotated by the daysymlink: "logs/current.log" // Maintain a symlink called current.logcompress: true // Gzip old log filesmy_logger_thingy
A string file path with any of the below options to define rotation schedule:
logs/mylog-%Y-%m-%d.log would result in logs like
- %Y 4-digit year e.g. 2013
- %y 2-digit year e.g. 13
- %m month (01..12)
- %d day of month (01..31)
- %F iso8601 date portion (e.g. 2012-09-24)
- %H hour (00..23)
- %M minute (00..59)
- %S second (00..61)
- %T iso8601 time portion to the second (e.g.: 15:12:47)
See strftime documentation for all specifiers.
A path to a symlink that will be maintained to point at the current log file.
Boolean value, whether to gzip the files once they aren't being written to.
done event when the source stream has finished and all file stream work is complete.
Currently only timestamps files in UTC timezone. Pull requests welcome!