How to customise log file name

[aadgithub]

Hi
I am using log4js version 6.2.1

I have configure logs level with following way in json file.
{ "appenders": { "Application": { "type": "dateFile", "filename": "logs/Application", "alwaysIncludePattern": true, "category": "Application", "layout": { "type": "pattern", "pattern": "<log timestamp=\"%d{yyyy-MM-dd hh:mm:ss.SSS}\" level=\"%5.5p\"><message>%m</message></log>" } }, "Database": { "type": "dateFile", "filename": "logs/Database", "alwaysIncludePattern": true, "category": "Database", "layout": { "type": "pattern", "pattern": "<log timestamp=\"%d{yyyy-MM-dd hh:mm:ss.SSS}\" level=\"%5.5p\"><message>%m</message></log>" } } } }

it is creating logs files daily with default name pattern like
Application.2020-08-07
Database.2020-08-07

I want to create file name with hyphen, like
Application-2020-08-07
Database-2020-08-07

is there any configuration to use custom file name?

[rnd-debug]

@aadgithub Hello. Have you checked the pattern parameter of the appender configuration: https://log4js-node.github.io/log4js-node/dateFile.html ?
Something like:

    "Application": {
      "type": "dateFile",
      "filename": "logs/Application",
      "pattern": "-yyyy-MM-dd",               // <= check this
      "alwaysIncludePattern": true,
      "category": "Application",
      "layout": {...}
    },

[lamweili]

"pattern": "-yyyy-MM-dd", will result in Application.-2020-08-07 instead of Application-2020-08-07.
There is an additional . separator, despite not being declared in the pattern.

There is a separate issue on that: log4js-node/streamroller#64

[lamweili]

It was fixed in streamroller@^3.0.0.

For more details: log4js-node/streamroller#75 (comment)