Fix hash comparison bug causing unnecessary redownloads

Author: stnby

push.go

@@ -105,10 +105,10 @@ func push(cfg *config.PushConfig) error {
 			s3FileName := fileName + ".enc"
 			s3Key := s3client.BuildKey(cfg.S3.Prefix, s3FileName)
 
-			newHashes[s3FileName] = localHashStr
+			newHashes[fileName] = localHashStr
 
 			// Check if hash matches
-			if existingHash, ok := existingHashes[s3FileName]; ok && existingHash == localHashStr {
+			if existingHash, ok := existingHashes[fileName]; ok && existingHash == localHashStr {
 				continue
 			}
 
@@ -133,8 +133,18 @@ func push(cfg *config.PushConfig) error {
 		}
 	}
 
-	// Upload updated hashes file if anything changed
-	if uploaded {
+	// Upload updated hashes file if it changed
+	hashesChanged := len(newHashes) != len(existingHashes)
+	if !hashesChanged {
+		for k, v := range newHashes {
+			if existingHashes[k] != v {
+				hashesChanged = true
+				break
+			}
+		}
+	}
+
+	if hashesChanged {
 		hashesJSON, err := json.Marshal(newHashes)
 		if err != nil {
 			return fmt.Errorf("marshal hashes: %w", err)