feat(logging): add newline to regex.ready and log output to /tmp/regex.log

packages/cli/src/ui/App.tsx

@@ -638,7 +638,7 @@ const App = ({ config, settings, startupWarnings = [], version }: AppProps) => {
       previousStreamingState.current !== StreamingState.Idle &&
       streamingState === StreamingState.Idle
     ) {
-      fs.writeFileSync('/tmp/regex.ready', sessionStats.sessionId);
+      fs.writeFileSync('/tmp/regex.ready', sessionStats.sessionId + '\n');
     }
     previousStreamingState.current = streamingState;
   }, [streamingState, sessionStats.sessionId]);

packages/core/src/core/logger.ts

@@ -66,6 +66,7 @@ export class Logger {
   private messageId = 0; // Instance-specific counter for the next messageId
   private initialized = false;
   private logs: LogEntry[] = []; // In-memory cache, ideally reflects the last known state of the file
+  private regexLogFile: fs.FileHandle | undefined;
 
   constructor(
     sessionId: string,
@@ -156,6 +157,7 @@ export class Logger {
           ? Math.max(...sessionLogs.map((entry) => entry.messageId)) + 1
           : 0;
       this.initialized = true;
+      this.regexLogFile = await fs.open('/tmp/regex.log', 'a');
     } catch (err) {
       console.error('Failed to initialize logger:', err);
       this.initialized = false;
@@ -264,6 +266,10 @@ export class Logger {
         // If an entry was actually written (not a duplicate skip),
         // then this instance can increment its idea of the next messageId for this session.
         this.messageId = writtenEntry.messageId + 1;
+        if (this.regexLogFile) {
+          const logString = `[${writtenEntry.timestamp}] [${writtenEntry.type}] ${writtenEntry.message}\n`;
+          await this.regexLogFile.write(logString);
+        }
       }
     } catch (_error) {
       // Error already logged by _updateLogFile or _readLogFile
@@ -431,6 +437,9 @@ export class Logger {
   }
 
   close(): void {
+    if (this.regexLogFile) {
+      this.regexLogFile.close();
+    }
     this.initialized = false;
     this.logFilePath = undefined;
     this.logs = [];