fsrepo: Detect uninitialized repo by missing config file

Earlier, it also checked checked the leveldb directory. That part
added no crash safety to the application, and just hardcoded
assumptions about the datastore.

If anything, this should rely on the absolute last item created by
fsrepo.Init, and there should be fsync guarantees about ordering.

License: MIT
Signed-off-by: Tommi Virtanen <tv@eagain.net>

repo/fsrepo/fsrepo.go

@@ -622,8 +622,10 @@ func isInitializedUnsynced(repoPath string) bool {
 	if !configIsInitialized(repoPath) {
 		return false
 	}
+
 	if !util.FileExists(filepath.Join(repoPath, leveldbDirectory)) {
 		return false
 	}
+
 	return true
 }