From: Colin Watson <cjwatson@debian.org>
Date: Wed, 30 Oct 2024 14:12:22 +0000
Subject: Handle building docs without installation

Forwarded: not-needed
Last-Update: 2024-10-30
---
 docs/conf.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/docs/conf.py b/docs/conf.py
index d3a67d1..500d967 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -29,7 +29,10 @@ master_doc = 'index'
 project = 'icalendar'
 this_year = datetime.date.today().year
 copyright = f'{this_year}, Plone Foundation'
-version = importlib.metadata.version('icalendar')
+if 'DEB_VERSION_UPSTREAM' in os.environ:
+    version = os.environ['DEB_VERSION_UPSTREAM']
+else:
+    version = importlib.metadata.version('icalendar')
 release = version
 
 exclude_patterns = ['_build', 'lib', 'bin', 'include', 'local']