x/exp/slog: Customising log source value

[bentcoder]

Hi,

RE: #59280 (comment)

func (s *Source) String() string { return fmt.Sprintf("%s:%d", s.File, s.Line) }

What @rsc suggested above is what all our app's are doing for many years. I am wondering if I can somehow accomplish the same behaviour using Slog?

If there is still possibility for a simple string value, I will then get rid of working directory from it (file) and have a final value as shown below.

"source": "/Users/myself/dev/tetris/cmd/api/main.go:15" <--- FROM
"source": "/cmd/api/main.go:15"                         <--- TO

Note: I am coming from Zerolog and Logrus background and both have this possibility but I am not sure if Slog has it. If id does, I prefer migrating to Slog.

Thank you

CC: @jba

[seankhliao]

see slog.SouceKey and slog.Record.PC

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