From d959940a9dae91473e303d7325e04ffddce7396a Mon Sep 17 00:00:00 2001
From: James Gerity <snoop.jedi@gmail.com>
Date: Tue, 18 Jul 2023 18:47:02 -0400
Subject: [PATCH] fix: add explicit error for invalid versions encountered
 during collect (#101)

* Add explicit error for invalid versions encountered during collect

* Adjust line length to appease the linter
---
 src/scriv/collect.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/scriv/collect.py b/src/scriv/collect.py
index 98df478..1d05835 100644
--- a/src/scriv/collect.py
+++ b/src/scriv/collect.py
@@ -71,6 +71,12 @@ def collect(
                 if etitle is None:
                     continue
                 eversion = Version.from_text(etitle)
+                if eversion is None:
+                    sys.exit(
+                        f"Entry {etitle!r} is not a valid version! "
+                        + "If scriv should ignore this heading, add "
+                        + "'scriv-end-here' somewhere before it."
+                    )
                 if eversion == version:
                     sys.exit(
                         f"Entry {etitle!r} already uses "