Added flag for cask_reason to output cask info or just message with cask name

Library/Homebrew/cmd/info.rb

@@ -89,7 +89,7 @@ module Homebrew
           end
           ofail e.message
           # No formula with this name, try a missing formula lookup
-          if (reason = MissingFormula.reason(f) || MissingFormula.cask_reason(f))
+          if (reason = MissingFormula.reason(f, show_info: true))
             $stderr.puts reason
           end
         end

Library/Homebrew/missing_formula.rb

@@ -6,8 +6,9 @@ require "cask/cask_loader"
 module Homebrew
   module MissingFormula
     class << self
-      def reason(name, silent: false)
-        blacklisted_reason(name) || tap_migration_reason(name) || deleted_reason(name, silent: silent)
+      def reason(name, silent: false, show_info: false)
+        cask_reason(name, silent: silent, show_info: show_info) || blacklisted_reason(name) ||
+          tap_migration_reason(name) || deleted_reason(name, silent: silent)
       end
 
       def blacklisted_reason(name)
@@ -189,12 +190,13 @@ module Homebrew
         end
       end
 
-      def cask_reason(name, silent: false)
+      def cask_reason(name, silent: false, show_info: false)
         return if silent
 
         cask = Cask::CaskLoader.load(name)
-        reason = "Found the following cask named \"#{name}\" instead:\n"
-        reason << Cask::Cmd::Info.get_info(cask)
+        reason = "Found a cask named \"#{name}\" instead.\n"
+        reason << Cask::Cmd::Info.get_info(cask) if show_info
+        reason
       rescue Cask::CaskUnavailableError
         nil
       end

Library/Homebrew/test/missing_formula_spec.rb

@@ -138,16 +138,25 @@ describe Homebrew::MissingFormula do
   end
 
   describe "::cask_reason", :cask do
-    subject { described_class.cask_reason(formula) }
+    subject { described_class.cask_reason(formula, show_info: show_info) }
 
-    context "with a missing formula that exists as a cask" do
+    context "with a formula name that is a cask and show_info: false" do
       let(:formula) { "local-caffeine" }
+      let(:show_info) { false }
 
-      it { is_expected.to match(/Found the following cask named "local-caffeine" instead:\nlocal-caffeine: 1.2.3\n/) }
+      it { is_expected.to match(/Found a cask named "local-caffeine" instead./) }
     end
 
-    context "with a missing formula that does not share a name with a cask" do
+    context "with a formula name that is a cask and show_info: true" do
+      let(:formula) { "local-caffeine" }
+      let(:show_info) { true }
+
+      it { is_expected.to match(/Found a cask named "local-caffeine" instead.\nlocal-caffeine: 1.2.3\n/) }
+    end
+
+    context "with a formula name that is not a cask" do
       let(:formula) { "missing-formula" }
+      let(:show_info) { false }
 
       it { is_expected.to be_nil }
     end