From 43d67816ea48ac9ef1356015bef2d515b1de7b0f Mon Sep 17 00:00:00 2001
From: Alexander Bayandin <a.bayandin@gmail.com>
Date: Fri, 18 Jun 2021 16:40:12 +0100
Subject: [PATCH] audit_conflicts: enable for third-party taps

---
 Library/Homebrew/formula_auditor.rb         |  9 +--
 Library/Homebrew/test/dev-cmd/audit_spec.rb | 66 ++++++++++++---------
 2 files changed, 42 insertions(+), 33 deletions(-)

diff --git a/Library/Homebrew/formula_auditor.rb b/Library/Homebrew/formula_auditor.rb
index 55c6d0976f..1bb9c55339 100644
--- a/Library/Homebrew/formula_auditor.rb
+++ b/Library/Homebrew/formula_auditor.rb
@@ -314,13 +314,14 @@ module Homebrew
     end
 
     def audit_conflicts
+      tap = formula.tap
       formula.conflicts.each do |c|
         conflicting_formula = Formulary.factory(c.name)
+        next if tap != conflicting_formula.tap
+
         problem "Formula should not conflict with itself" if formula == conflicting_formula
 
-        next unless @core_tap
-
-        if CoreTap.instance.formula_renames.key?(c.name) || Formula.aliases.include?(c.name)
+        if tap.formula_renames.key?(c.name) || tap.aliases.include?(c.name)
           problem "Formula conflict should be declared using " \
                   "canonical name (#{conflicting_formula.name}) instead of #{c.name}"
         end
@@ -328,7 +329,7 @@ module Homebrew
         rev_conflict_found = false
         conflicting_formula.conflicts.each do |rc|
           rc_formula = Formulary.factory(rc.name)
-          if CoreTap.instance.formula_renames.key?(rc.name) || Formula.aliases.include?(rc.name)
+          if tap.formula_renames.key?(rc.name) || tap.aliases.include?(rc.name)
             problem "Formula #{conflicting_formula.name} conflict should be declared using " \
                     "canonical name (#{rc_formula.name}) instead of #{rc.name}"
           end
diff --git a/Library/Homebrew/test/dev-cmd/audit_spec.rb b/Library/Homebrew/test/dev-cmd/audit_spec.rb
index d9040f4055..cd33d61b27 100644
--- a/Library/Homebrew/test/dev-cmd/audit_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/audit_spec.rb
@@ -58,13 +58,20 @@ module Homebrew
   end
 
   describe FormulaAuditor do
-    def formula_auditor(name, text, options = {})
-      path = Pathname.new "#{dir}/#{name}.rb"
-      path.open("w") do |f|
-        f.write text
+    def formula_auditor(name_or_formula, text = nil, options = {})
+      formula = case name_or_formula
+      when String
+        path = Pathname.new "#{dir}/#{name_or_formula}.rb"
+        path.open("w") do |f|
+          f.write text
+        end
+
+        Formulary.factory(path)
+      when Formula
+        name_or_formula
       end
 
-      described_class.new(Formulary.factory(path), options)
+      described_class.new(formula, options)
     end
 
     let(:dir) { mktmpdir }
@@ -1141,15 +1148,18 @@ module Homebrew
     end
 
     describe "#audit_conflicts" do
+      before do
+        allow(File).to receive(:open).and_return("")
+      end
+
       specify "it warns when conflicting with non-existing formula" do
-        fa = formula_auditor "foo", <<~RUBY, core_tap: true
-          class Foo < Formula
-            url "https://brew.sh/foo-1.0.tgz"
+        foo = formula("foo") do
+          url "https://brew.sh/bar-1.0.tgz"
 
-            conflicts_with "bar"
-          end
-        RUBY
+          conflicts_with "bar"
+        end
 
+        fa = formula_auditor foo
         fa.audit_conflicts
 
         expect(fa.problems.first[:message])
@@ -1157,14 +1167,14 @@ module Homebrew
       end
 
       specify "it warns when conflicting with itself" do
-        fa = formula_auditor "foo", <<~RUBY, core_tap: true
-          class Foo < Formula
-            url "https://brew.sh/foo-1.0.tgz"
+        foo = formula("foo") do
+          url "https://brew.sh/bar-1.0.tgz"
 
-            conflicts_with "#{dir}/foo.rb"
-          end
-        RUBY
+          conflicts_with "foo"
+        end
+        stub_formula_loader foo
 
+        fa = formula_auditor foo
         fa.audit_conflicts
 
         expect(fa.problems.first[:message])
@@ -1172,24 +1182,22 @@ module Homebrew
       end
 
       specify "it warns when another formula does not have a symmetric conflict" do
-        formula_auditor "bar", <<~RUBY, core_tap: true
-          class Bar < Formula
-            url "https://brew.sh/foo-1.0.tgz"
-          end
-        RUBY
+        foo = formula("foo") do
+          url "https://brew.sh/foo-1.0.tgz"
+        end
+        stub_formula_loader foo
 
-        fa = formula_auditor "foo", <<~RUBY, core_tap: true
-          class Foo < Formula
-            url "https://brew.sh/foo-1.0.tgz"
+        bar = formula("bar") do
+          url "https://brew.sh/bar-1.0.tgz"
 
-            conflicts_with "#{dir}/bar.rb"
-          end
-        RUBY
+          conflicts_with "foo"
+        end
 
+        fa = formula_auditor bar
         fa.audit_conflicts
 
         expect(fa.problems.first[:message])
-          .to match("Formula bar should also have a conflict declared with foo")
+          .to match("Formula foo should also have a conflict declared with bar")
       end
     end
   end