git-interface: Do not use rowcount

Avoid using Cursor.rowcount to obtain the number of rows returned by a
SELECT statement as this is not guaranteed to be supported by every
database engine.

Signed-off-by: Lukas Fleischer <lfleischer@archlinux.org>

1 files changed, 3 insertions, 2 deletions

diff --git a/git-interface/git-auth.py b/git-interface/git-auth.py
index ebdc75c..45fd577 100755
--- a/git-interface/git-auth.py
+++ b/git-interface/git-auth.py
@@ -40,10 +40,11 @@ cur = conn.execute("SELECT Users.Username, Users.AccountTypeID FROM Users " +
                    "WHERE SSHPubKeys.PubKey = ? AND Users.Suspended = 0",
                    (keytype + " " + keytext,))
 
-if cur.rowcount != 1:
+row = cur.fetchone()
+if not row or cur.fetchone():
     exit(1)
 
-user, account_type = cur.fetchone()
+user, account_type = row
 if not re.match(username_regex, user):
     exit(1)