From 8ce159d26ebefd19a7ac6ef8c0c64b460cfcf384 Mon Sep 17 00:00:00 2001
From: Scott Worley <scottworley@scottworley.com>
Date: Thu, 28 May 2020 23:22:07 -0700
Subject: [PATCH 1/1] Better error message for running "update" before "pin"

---
 pinch.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pinch.py b/pinch.py
index 1827281..f84440c 100644
--- a/pinch.py
+++ b/pinch.py
@@ -509,6 +509,11 @@ def update(args: argparse.Namespace) -> None:
                 assert 'git_repo' not in config[section]
                 continue
 
+            if 'git_repo' not in config[section] or 'release_name' not in config[section]:
+                raise Exception(
+                    'Cannot update unpinned channel "%s" (Run "pin" before "update")' %
+                    section)
+
             if 'channel_url' in config[section]:
                 tarball = fetch_with_nix_prefetch_url(
                     v, config[section]['tarball_url'], Digest16(
-- 
2.44.1