Show reused percentage of incremental backups.

1 files changed, 3 insertions, 2 deletions

diff --git a/src/main/java/com/keuin/kbackupfabric/backup/incremental/manager/IncCopyResult.java b/src/main/java/com/keuin/kbackupfabric/backup/incremental/manager/IncCopyResult.java
index 4301adc..6661a27 100644
--- a/src/main/java/com/keuin/kbackupfabric/backup/incremental/manager/IncCopyResult.java
+++ b/src/main/java/com/keuin/kbackupfabric/backup/incremental/manager/IncCopyResult.java
@@ -95,11 +95,12 @@ public class IncCopyResult {
     @Override
     public String toString() {
         return String.format(
-                "File(s) added: %d (%s in size, totally %d files). Total backup-ed files size: %s",
+                "File(s) added: %d (%s in size, totally %d files). Total backup-ed files size: %s (%.2f%% reused)",
                 filesCopied,
                 BackupFilesystemUtil.getFriendlyFileSizeString(bytesCopied),
                 totalFiles,
-                BackupFilesystemUtil.getFriendlyFileSizeString(bytesTotal)
+                BackupFilesystemUtil.getFriendlyFileSizeString(bytesTotal),
+                (1 - 1.0f * bytesCopied / bytesTotal) * 100
         );
     }
 }