some pre-refactor cleanup

gadget-code/src/lib/log-transport-file.ts

@@ -2,8 +2,11 @@
 // Copyright (C) 2026 Robert Colbert <rob.colbert@openplatform.us>
 // All Rights Reserved
 
+import util from "node:util";
 import { Writable } from "node:stream";
 
+import dayjs from "dayjs";
+
 import { DtpLogLevel } from "./log.js";
 import { DtpLogTransport } from "./log-transport.js";
 import { DtpComponent } from "./component.ts";
@@ -20,17 +23,17 @@ export class DtpLogTransportFile implements DtpLogTransport {
     component: DtpComponent,
     level: DtpLogLevel,
     message: string,
-    metadata?: unknown
+    metadata?: unknown,
   ): Promise<void> {
     return new Promise<void>((resolve, reject) => {
-      const logMessage = JSON.stringify({
-        timestamp,
-        component,
-        level,
-        message,
-        metadata,
-      });
-      const chunk = Buffer.from(logMessage + "\r\n");
+      const stimestamp = dayjs(timestamp).format("YYYY-MM-DD HH:mm:ss.SSS");
+
+      let sLogMessage = `${stimestamp} ${level} ${component.slug} ${message}`;
+      if (metadata) {
+        sLogMessage += " " + util.inspect(metadata, false, Infinity, false);
+      }
+
+      const chunk = Buffer.from(sLogMessage + "\n");
       this.file.write(chunk, (error: Error | null | undefined): void => {
         if (error) {
           return reject(error);

gadget-drone/src/lib/log-transport-file.ts

@@ -11,14 +11,6 @@ import { GadgetLogLevel } from "./log.js";
 import { GadgetLogTransport } from "./log-transport.js";
 import { GadgetComponent } from "./component.ts";
 
-interface LogFilePayload {
-  timestamp: Date;
-  component: string;
-  level: GadgetLogLevel;
-  message: string;
-  metadata?: unknown;
-}
-
 export class GadgetLogTransportFile implements GadgetLogTransport {
   file: Writable;