[PATCH v2 5/5] compact: provide user more information on after-compaction failures
Tomi Ollila
tomi.ollila at iki.fi
Wed Nov 13 09:02:47 PST 2013
After database has been compacted, there are steps to put the new
database into place -- and these steps may fail. In case such
failure happens, provide better information how to resolve it.
Thanks to Ben Gamari for most of the information content.
---
lib/database.cc | 39 +++++++++++++++++++++++++++++++++++----
1 file changed, 35 insertions(+), 4 deletions(-)
diff --git a/lib/database.cc b/lib/database.cc
index 4b5ac64..a6daac6 100644
--- a/lib/database.cc
+++ b/lib/database.cc
@@ -939,19 +939,50 @@ 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 old database out of the way:\n"
+ "Old database: %s\n"
+ "Backup database: %s\n"
+ "Error: %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 compacted database into place: %s\n",
+ strerror (errno));
+ fprintf (stderr, "\n"
+ "Encountered error while moving the compacted database\n"
+ "\n"
+ " %s\n"
+ "\n"
+ "to\n"
+ "\n"
+ " %s\n"
+ "\n"
+ "Please identify the reason for this and move the compacted database\n"
+ "into place manually.\n"
+ "\n"
+ "Alternatively you can revert to the uncompacted database with\n"
+ "\n"
+ " mv '%s' '%s'\n"
+ "\n", compact_xapian_path, xapian_path,
+ backup_path, xapian_path);
ret = NOTMUCH_STATUS_FILE_ERROR;
goto DONE;
}
- if (! keep_backup)
- rmtree (backup_path);
+ if (! keep_backup) {
+ if (rmtree (backup_path)) {
+ fprintf (stderr, "Error removing backup database: %s\n",
+ strerror (errno));
+ fprintf (stderr, "\n"
+ "Please remove the backup database with\n"
+ "\n"
+ " rm -rf '%s'\n" "\n", backup_path);
+ ret = NOTMUCH_STATUS_FILE_ERROR;
+ goto DONE;
+ }
+ }
DONE:
if (notmuch)
--
1.8.3.1
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