cli: config: keep track of whether the config is newly created

Keep track of whether the config is newly created, and add
notmuch_config_is_new() accessor function to query this.

This is to support anyone with a config handle to check this, instead
of just whoever called notmuch_config_open().

1 files changed, 3 insertions, 0 deletions

diff --git a/notmuch-client.h b/notmuch-client.h
index 5f288368..07367e01 100644
--- a/notmuch-client.h
+++ b/notmuch-client.h
@@ -256,6 +256,9 @@ notmuch_config_close (notmuch_config_t *config);
 int
 notmuch_config_save (notmuch_config_t *config);
 
+notmuch_bool_t
+notmuch_config_is_new (notmuch_config_t *config);
+
 const char *
 notmuch_config_get_database_path (notmuch_config_t *config);