feat(logging): add option to hide log line source

This is almost certainly going to be a footgun, but it's not too
bad of a change to make. If users really do want to make getting
support more difficult, so be it.

Closes: #1537
Signed-off-by: Xe Iaso <me@xeiaso.net>

lib/config/logging.go

@@ -17,6 +17,7 @@ type Logging struct {
 	Sink       string             `json:"sink"`       // Logging sink, either "stdio" or "file"
 	Level      *slog.Level        `json:"level"`      // Log level, if set supersedes the level in flags
 	Parameters *LoggingFileConfig `json:"parameters"` // Logging parameters, to be dynamic in the future
+	HideSource bool               `json:"hideSource"` // If true, hide the `source` field in log lines
 }
 
 const (

lib/policy/policy.go

@@ -75,7 +75,7 @@ func ParseConfig(ctx context.Context, fin io.Reader, fname string, defaultDiffic
 
 	switch c.Logging.Sink {
 	case config.LogSinkStdio:
-		result.Logger = internal.InitSlog(logLevel, os.Stderr)
+		result.Logger = internal.InitSlog(logLevel, os.Stderr, c.Logging.HideSource)
 	case config.LogSinkFile:
 		out := &logrotate.Logger{
 			Filename:           c.Logging.Parameters.Filename,
@@ -87,7 +87,7 @@ func ParseConfig(ctx context.Context, fin io.Reader, fname string, defaultDiffic
 			Compress:           c.Logging.Parameters.Compress,
 		}
 
-		result.Logger = internal.InitSlog(logLevel, out)
+		result.Logger = internal.InitSlog(logLevel, out, c.Logging.HideSource)
 	}
 
 	lg := result.Logger.With("at", "config-validate")