Add :quiet, :verbose, :debug common switches to be specified

Library/Homebrew/cli_parser.rb

@@ -16,6 +16,7 @@ module Homebrew
 
       def switch(*names, description: nil, env: nil)
         description = option_to_description(*names) if description.nil?
+        names, env = common_switch(*names) if names.first.is_a?(Symbol)
         @parser.on(*names, description) do
           enable_switch(*names)
         end
@@ -46,7 +47,7 @@ module Homebrew
       end
 
       def option_to_description(*names)
-        names.map { |name| name.sub(/\A--?/, "").tr("-", " ") }.sort.last
+        names.map { |name| name.to_s.sub(/\A--?/, "").tr("-", " ") }.sort.last
       end
 
       def parse(cmdline_args = ARGV)
@@ -61,6 +62,15 @@ module Homebrew
           @parsed_args["#{option_to_name(name)}?"] = true
         end
       end
+
+      def common_switch(name)
+        case name
+        when :quiet   then [["-q", "--quiet"], :quiet]
+        when :verbose then [["-v", "--verbose"], :verbose]
+        when :debug   then [["-d", "--debug"], :debug]
+        else name
+        end
+      end
     end
   end
 end

Library/Homebrew/dev-cmd/audit.rb

@@ -63,6 +63,8 @@ module Homebrew
       switch      "--display-cop-names"
       switch      "--display-filename"
       switch      "-D", "--audit-debug", description: "Activates debugging and profiling"
+      switch      :verbose
+      switch      :debug
       comma_array "--only"
       comma_array "--except"
       comma_array "--only-cops"

Library/Homebrew/dev-cmd/bottle.rb

@@ -72,7 +72,6 @@ module Homebrew
   def bottle
     @args = Homebrew::CLI::Parser.parse do
       switch "--merge"
-      switch "-v", "--verbose"
       switch "--skip-relocation"
       switch "--force-core-tap"
       switch "--no-rebuild"
@@ -80,6 +79,7 @@ module Homebrew
       switch "--write"
       switch "--no-commit"
       switch "--json"
+      switch :verbose
       flag   "--root-url"
     end
 

Library/Homebrew/test/cli_parser_spec.rb

@@ -2,9 +2,14 @@ require_relative "../cli_parser"
 
 describe Homebrew::CLI::Parser do
   describe "test switch options" do
+    before do
+      allow(ENV).to receive(:[]).with("HOMEBREW_PRY").and_return("1")
+      allow(ENV).to receive(:[]).with("HOMEBREW_VERBOSE")
+    end
+
     subject(:parser) {
       described_class.new do
-        switch "-v", "--verbose", description: "Flag for verbosity"
+        switch :verbose, description: "Flag for verbosity"
         switch "--more-verbose", description: "Flag for higher verbosity"
         switch "--pry", env: :pry
       end
@@ -37,7 +42,6 @@ describe Homebrew::CLI::Parser do
     end
 
     it "maps environment var to an option" do
-      allow(ENV).to receive(:[]).with("HOMEBREW_PRY").and_return("1")
       args = parser.parse([])
       expect(args.pry?).to be true
     end