notmuch_database_create/open: Fix to handle NULL as documented.

[notmuch] / notmuch.h

diff --git a/notmuch.h b/notmuch.h
index 873c88d227732c7349b330cdaf667ea4c3554336..b63a7d77b7616ae1f8bf12d3a68b7022d49fa28a 100644 (file)
--- a/notmuch.h
+++ b/notmuch.h
@@ -40,10 +40,14 @@ NOTMUCH_BEGIN_DECLS
  * NOTMUCH_STATUS_SUCCESS: No error occurred.
  *
  * NOTMUCH_STATUS_XAPIAN_EXCEPTION: A Xapian exception occurred
+ *
+ * NOTMUCH_STATUS_FILE_NOT_EMAIL: A file was presented that doesn't
+ *     appear to be an email message.
  */
 typedef enum _notmuch_status {
     NOTMUCH_STATUS_SUCCESS = 0,
-    NOTMUCH_STATUS_XAPIAN_EXCEPTION
+    NOTMUCH_STATUS_XAPIAN_EXCEPTION,
+    NOTMUCH_STATUS_FILE_NOT_EMAIL
 } notmuch_status_t;
 
 /* An opaque data structure representing a notmuch database. See
@@ -106,6 +110,23 @@ notmuch_database_open (const char *path);
 void
 notmuch_database_close (notmuch_database_t *database);
 
+/* Lookup the default database path.
+ *
+ * This is the path that will be used by notmuch_database_create and
+ * notmuch_database_open if given a NULL path. Specifically it will be
+ * the value of the NOTMUCH_BASE environment variable if set,
+ * otherwise ${HOME}/mail
+ *
+ * Returns a newly allocated string which the caller should free()
+ * when finished with it.
+ */
+char *
+notmuch_database_default_path (void);
+
+/* Return the database path of the given database.
+ *
+ * The return value is a string owned by notmuch so should not be
+ * modified nor freed by the caller. */
 const char *
 notmuch_database_get_path (notmuch_database_t *database);
 
@@ -116,7 +137,15 @@ notmuch_database_get_path (notmuch_database_t *database);
  * single mail message (not a multi-message mbox) that is expected to
  * remain at its current location, (since the notmuch database will
  * reference the filename, and will not copy the entire contents of
- * the file. */
+ * the file.
+ *
+ * Return value:
+ *
+ * NOTMUCH_STATUS_SUCCESS: Message successfully added to database.
+ *
+ * NOTMUCH_STATUS_FILE_NOT_EMAIL: the contents of filename don't look
+ *     like an email message. Nothing added to the database.
+ */
 notmuch_status_t
 notmuch_database_add_message (notmuch_database_t *database,
                              const char *filename);