is there an easier way to do basename/dirname when using file source

[shantanugadgil]

I have the following minimal config file (experimented on the VRL playground)

I want to extract the "only file name" bit (first part of basename) from the full file name of the log file.

I have the following so far, but was wondering if there is there a more "proper" way of doing this?

(In the longer run I want to use the extracted name as a log label when forwarding to Loki.

data_dir: /tmp/experiment/

sources:
  logs:
    type: file
    include:
      - /var/log/*.log

transforms:
  modify:
    type: remap
    inputs:
      - logs
    source: |
      parts = split!(.file, "/")
      basename = split!(parts[-1], ".")
      .service_name = basename[0]

sinks:
  my_sink_id:
    type: console
    inputs:
      - modify
    encoding:
      codec: json

[pront]

Hi @shantanugadgil, I think what you have here is the correct way to achieve this: VRL playground example

You can also open a new VRL enhancement request: https://github.com/vectordotdev/vrl/issues to request a new VRL function to produce the basename.

[shantanugadgil]

Thanks for confirming @pront

[shantanugadgil]

Done, opened a feature request: vectordotdev/vrl#1348

Thanks!