save: detect missing metastore via ENOENT not EACCES

While we might also eventually want to handle EACCES, ENOENT should be
what we want for the current handler, i.e. "does it exist at all".

Signed-off-by: Rob Browning <rlb@defaultvalue.org>

diff --git a/lib/bup/cmd/save.py b/lib/bup/cmd/save.py
index 4deef5d31f55f1b0916f67a5c8f4c4d4b29d4432..88f74d77b9216bac94acdca2bc3a4360c97b6969 100755 (executable)
--- a/lib/bup/cmd/save.py
+++ b/lib/bup/cmd/save.py
@@ -1,7 +1,7 @@
 
 from __future__ import absolute_import, print_function
 from binascii import hexlify
-from errno import EACCES
+from errno import ENOENT
 from io import BytesIO
 import math, os, stat, sys, time
 
@@ -513,7 +513,7 @@ def main(argv):
             try:
                 msr = index.MetaStoreReader(indexfile + b'.meta')
             except IOError as ex:
-                if ex.errno != EACCES:
+                if ex.errno != ENOENT:
                     raise
                 log('error: cannot access %r; have you run bup index?'
                     % path_msg(indexfile))