Fix symbol upload (#21)

* Return early if the symbol is already uploaded
* Improve logging

reporter/symbol_querier.go

@@ -66,8 +66,6 @@ func (d *DatadogSymbolQuerier) QuerySymbols(ctx context.Context, buildIDs []stri
 		return nil, fmt.Errorf("error marshaling symbols query request: %w", err)
 	}
 
-	fmt.Printf("Querying symbols with request: %s\n", string(body))
-
 	req, err := http.NewRequestWithContext(ctx, http.MethodPost, d.symbolQueryURL, bytes.NewReader(body))
 	if err != nil {
 		return nil, fmt.Errorf("failed to create request: %w", err)

reporter/symbol_uploader.go

@@ -184,6 +184,7 @@ func (d *DatadogSymbolUploader) GetExistingSymbolsOnBackend(ctx context.Context,
 		}
 	}
 
+	log.Debugf("Existing symbols for executable %s with build: %v", e, symbolSource)
 	return symbolSource, nil
 }
 
@@ -225,8 +226,9 @@ func (d *DatadogSymbolUploader) upload(ctx context.Context, uploadData uploadDat
 	}
 
 	if existingSymbolSource >= symbolSource {
-		log.Debugf("Skipping symbol upload for executable %s: existing symbols with source %v", fileName,
+		log.Infof("Skipping symbol upload for executable %s: existing symbols with source %v", fileName,
 			existingSymbolSource.String())
+		return true
 	}
 
 	symbolPath := debugElf.actualFileName