From 0948d2013adba23ecf22b59a2ff61453c2b6f63e Mon Sep 17 00:00:00 2001
From: Mike McQuaid <mike@mikemcquaid.com>
Date: Mon, 10 Apr 2017 22:42:57 +0100
Subject: [PATCH] audit: deprecate language module requirements.
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Make `brew audit` complain about language module requirements because
they provide a crappy user experience compared to vendoring and we鈥檙e
not really fixing bugs in them any more.
---
 Library/Homebrew/dev-cmd/audit.rb | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Library/Homebrew/dev-cmd/audit.rb b/Library/Homebrew/dev-cmd/audit.rb
index ba6c3f3334..45ae9201ad 100644
--- a/Library/Homebrew/dev-cmd/audit.rb
+++ b/Library/Homebrew/dev-cmd/audit.rb
@@ -1021,6 +1021,10 @@ class FormulaAuditor
       problem ":tex is deprecated."
     end
 
+    if line =~ /depends_on\s+['"].+['"]\s+=>\s+:(lua|perl|python|ruby)(\d*)/
+      problem "Formulae should vendor #{$1} modules rather than use `depends_on ... => :#{$1}#{$2}`."
+    end
+
     # Commented-out depends_on
     problem "Commented-out dep #{$1}" if line =~ /#\s*depends_on\s+(.+)\s*$/
 
-- 
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