From dfd5895970b8f520623559ac8fbd43f73ca934fa Mon Sep 17 00:00:00 2001
From: Carlo Cabrera <30379873+carlocab@users.noreply.github.com>
Date: Tue, 13 Sep 2022 19:22:11 +0800
Subject: [PATCH] formula_auditor: disallow SSPL.

The SSPL is not an open-source license, but it is recognised by SPDX.

See Homebrew/homebrew-core#109801.
---
 Library/Homebrew/formula_auditor.rb | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Library/Homebrew/formula_auditor.rb b/Library/Homebrew/formula_auditor.rb
index 39bb27a5f8..0b229b50b4 100644
--- a/Library/Homebrew/formula_auditor.rb
+++ b/Library/Homebrew/formula_auditor.rb
@@ -196,6 +196,13 @@ module Homebrew
       if formula.license.present?
         licenses, exceptions = SPDX.parse_license_expression formula.license
 
+        sspl_licensed = licenses.any? { |license| license.start_with?("SSPL") }
+        if sspl_licensed && @core_tap
+          problem <<~EOS
+            Formula #{formula.name} is SSPL-licensed. Software under the SSPL must not be packaged in homebrew/core.
+          EOS
+        end
+
         non_standard_licenses = licenses.reject { |license| SPDX.valid_license? license }
         if non_standard_licenses.present?
           problem <<~EOS