From 247c93ca48fdbecf13ba105a47ea80398eea550d Mon Sep 17 00:00:00 2001
From: Max Kellermann <max.kellermann@gmail.com>
Date: Mon, 13 Dec 2021 12:47:30 +0100
Subject: [PATCH] stack: strip trailing dots from short_name

Fixes assertion failure which can occur because the short_name is a
truncated version of the already-sanitized long_name, but the
truncation may leave a trailing dot.
---
 stgit/lib/stack.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/stgit/lib/stack.py b/stgit/lib/stack.py
index db562827..77af98ce 100644
--- a/stgit/lib/stack.py
+++ b/stgit/lib/stack.py
@@ -213,6 +213,9 @@ def make_name(self, raw, unique=True, lower=True, allow=(), disallow=()):
                 short_name = new_name
             else:
                 break
+        # Strip trailing dots again because the truncation may have
+        # left a trailing dot, which is not allowed
+        short_name = re.sub(r'\.+$', '', short_name)
         assert self.is_name_valid(short_name)
 
         if not unique: