From 87009cdc1b35968c61317dfe5375f5126ec44918 Mon Sep 17 00:00:00 2001
From: Jon Turney <jon.turney@dronecode.org.uk>
Date: Thu, 19 Jan 2023 13:39:20 +0000
Subject: Don't add duplicate license keys

Don't add a custom keys to license_expression's database, if it's
already present.

Also drop unneeded 'XVIEW' license.
---
 calm/hint.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/calm/hint.py b/calm/hint.py
index 6034c1d..1ec86d9 100755
--- a/calm/hint.py
+++ b/calm/hint.py
@@ -39,10 +39,10 @@ else:
     extra_licenses = [
         'Linux-man-pages-copyleft',  # requires SPDX license-list 3.15
         'Public-Domain',
-        'XVIEW',
     ]
     for l in extra_licenses:
-        json.append({"spdx_license_key": l})
+        if not any(j["spdx_license_key"] == l for j in json):
+            json.append({"spdx_license_key": l})
     licensing = license_expression.build_spdx_licensing(json)
 
 # types of key:
-- 
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