feat(medusa): Allow logging to file (#4696)

* enable additional log transport to file if FILE_NAME env var is set

* change var declaration to const

* Create chilly-geckos-look.md

---------

Co-authored-by: Oli Juhl <59018053+olivermrbl@users.noreply.github.com>

.changeset/chilly-geckos-look.md

@@ -0,0 +1,6 @@
+---
+"@medusajs/medusa": patch
+"@medusajs/medusa-cli": patch
+---
+
+Feat/allow logging to file

packages/medusa-cli/src/reporter/index.ts

@@ -8,6 +8,7 @@ import { panicHandler } from "./panic-handler"
 import * as Transport from "winston-transport"
 
 const LOG_LEVEL = process.env.LOG_LEVEL || "silly"
+const LOG_FILE = process.env.LOG_FILE || ""
 const NODE_ENV = process.env.NODE_ENV || "development"
 const IS_DEV = NODE_ENV.startsWith("dev")
 
@@ -26,6 +27,14 @@ if (!IS_DEV) {
   )
 }
 
+if (LOG_FILE) {
+  transports.push(
+    new winston.transports.File({
+      filename: LOG_FILE
+    })
+  )
+}
+
 const loggerInstance = winston.createLogger({
   level: LOG_LEVEL,
   levels: winston.config.npm.levels,