fix foreground log (#3808)

ts/nni_manager/common/log.ts

@@ -71,7 +71,7 @@ export class Logger {
 
     private log(level: number, args: any[]): void {
         const logFile: Writable | undefined = (global as any).logFile;
-        if (level < logLevel || logFile === undefined) {
+        if (level < logLevel) {
             return;
         }
 
@@ -84,8 +84,13 @@ export class Logger {
         const message = args.map(arg => (typeof arg === 'string' ? arg : util.inspect(arg))).join(' ');
         
         const record = `[${time}] ${levelName} (${this.name}) ${message}\n`;
+
+        if (logFile === undefined) {
+            console.log(record);
+        } else {
             logFile.write(record);
         }
+    }
 }
 
 export function getLogger(name: string = 'root'): Logger {

ts/nni_manager/main.ts

@@ -53,9 +53,9 @@ async function initContainer(foreground: boolean, platformMode: string, logFileN
         } else {
             startLogging(logFileName);
         }
+    }
     // eslint-disable-next-line @typescript-eslint/no-use-before-define
     setLogLevel(logLevel);
-    }
     const ds: DataStore = component.get(DataStore);
 
     await ds.init();