[PATCH 5/5] compact: improve error messages on failures after compaction

[Tomi Ollila]

The error messages written during the steps replacing old
database with new now includes relevant paths and strerror.
---
 lib/database.cc | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/lib/database.cc b/lib/database.cc
index d09ad99..f395061 100644
--- a/lib/database.cc
+++ b/lib/database.cc
@@ -942,19 +942,27 @@ notmuch_database_compact (const char *path,
     }

     if (rename (xapian_path, backup_path)) {
-       fprintf (stderr, "Error moving old database out of the way\n");
+       fprintf (stderr, "Error moving %s to %s: %s\n",
+                xapian_path, backup_path, strerror (errno));
        ret = NOTMUCH_STATUS_FILE_ERROR;
        goto DONE;
     }

     if (rename (compact_xapian_path, xapian_path)) {
-       fprintf (stderr, "Error moving compacted database\n");
+       fprintf (stderr, "Error moving %s to %s: %s\n",
+                compact_xapian_path, xapian_path, strerror (errno));
        ret = NOTMUCH_STATUS_FILE_ERROR;
        goto DONE;
     }

-    if (! keep_backup)
-       rmtree (backup_path);
+    if (! keep_backup) {
+       if (rmtree (backup_path)) {
+           fprintf (stderr, "Error removing old database %s: %s\n",
+                    backup_path, strerror (errno));
+           ret = NOTMUCH_STATUS_FILE_ERROR;
+           goto DONE;
+       }
+    }

   DONE:
     if (notmuch)
-- 
1.8.0