Allow setting customPrettifiers from the cli

[jedahan]

I like that our logging code does not need to care if its being pretty-printed or not, just adding | pretty-print to our dev scripts is good separation.

I would like to customize how our objects are pretty-printed, like customPrettifiers work. Is there a way to tell pino-pretty cli to load customPrettifiers from a file? Would this be a desired feature? Do you have tips on how to start implementing said feature?

Thanks

[mcollina]

I think it should be possible via the use of a config file: https://github.com/pinojs/pino-pretty/blob/77e85fdcf3413b5064c5258ea3b858eac230340f/bin.js#L23.

[tommiv]

Came here with the same question and just checked it out. It does work indeed. Here's how I "deserialize" a JS stacktrace which is hard to read otherwise:

// pino-pretty.config.js
module.exports = {
  timestampKey: 'ts',
  messageKey: 'message',
  ignore: 'type,serviceName',
  customPrettifiers: {
    trace: (trace) => '\n' + trace.replace(/\\n/g, '\n')
  }
}