From 1f64c50167aa2df4ec7e33b0668b91bceb5cd782 Mon Sep 17 00:00:00 2001
From: Mike McQuaid <mike@mikemcquaid.com>
Date: Tue, 17 Apr 2018 09:03:57 +0100
Subject: [PATCH 1/3] RuboCop 0.55.0.

---
 Library/Homebrew/constants.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Library/Homebrew/constants.rb b/Library/Homebrew/constants.rb
index a98c14a387..3e20ed7c2b 100644
--- a/Library/Homebrew/constants.rb
+++ b/Library/Homebrew/constants.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 # RuboCop version used for `brew style` and `brew cask style`
-HOMEBREW_RUBOCOP_VERSION = "0.54.0"
+HOMEBREW_RUBOCOP_VERSION = "0.55.0"
 HOMEBREW_RUBOCOP_CASK_VERSION = "~> 0.18.1" # has to be updated when RuboCop version changes

From 5cf8fa57279da551ca7ab8a31c1834357a2bfba1 Mon Sep 17 00:00:00 2001
From: Markus Reiter <me@reitermark.us>
Date: Tue, 17 Apr 2018 10:59:25 +0200
Subject: [PATCH 2/3] Update `rubocop-cask` to 0.19.

---
 Library/Homebrew/constants.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Library/Homebrew/constants.rb b/Library/Homebrew/constants.rb
index 3e20ed7c2b..25326075e5 100644
--- a/Library/Homebrew/constants.rb
+++ b/Library/Homebrew/constants.rb
@@ -2,4 +2,4 @@
 
 # RuboCop version used for `brew style` and `brew cask style`
 HOMEBREW_RUBOCOP_VERSION = "0.55.0"
-HOMEBREW_RUBOCOP_CASK_VERSION = "~> 0.18.1" # has to be updated when RuboCop version changes
+HOMEBREW_RUBOCOP_CASK_VERSION = "~> 0.19.0" # has to be updated when RuboCop version changes

From 0a00312b71bd654393634820f8577d25495e54c7 Mon Sep 17 00:00:00 2001
From: Mike McQuaid <mike@mikemcquaid.com>
Date: Tue, 17 Apr 2018 10:42:41 +0100
Subject: [PATCH 3/3] Autocorrect new RuboCop 0.55.0 style violations.

---
 Library/Homebrew/cask/lib/hbc/metadata.rb | 2 +-
 Library/Homebrew/cli_parser.rb            | 2 +-
 Library/Homebrew/formula.rb               | 2 +-
 Library/Homebrew/keg.rb                   | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/Library/Homebrew/cask/lib/hbc/metadata.rb b/Library/Homebrew/cask/lib/hbc/metadata.rb
index 344c38ceea..030b18dd9f 100644
--- a/Library/Homebrew/cask/lib/hbc/metadata.rb
+++ b/Library/Homebrew/cask/lib/hbc/metadata.rb
@@ -22,7 +22,7 @@ module Hbc
       end
 
       path = if timestamp == :latest
-        Pathname.glob(metadata_versioned_path(version: version).join("*")).sort.last
+        Pathname.glob(metadata_versioned_path(version: version).join("*")).max
       else
         timestamp = new_timestamp if timestamp == :now
         metadata_versioned_path(version: version).join(timestamp)
diff --git a/Library/Homebrew/cli_parser.rb b/Library/Homebrew/cli_parser.rb
index 5ce769343b..dd467f3fc6 100644
--- a/Library/Homebrew/cli_parser.rb
+++ b/Library/Homebrew/cli_parser.rb
@@ -52,7 +52,7 @@ module Homebrew
       end
 
       def option_to_description(*names)
-        names.map { |name| name.to_s.sub(/\A--?/, "").tr("-", " ") }.sort.last
+        names.map { |name| name.to_s.sub(/\A--?/, "").tr("-", " ") }.max
       end
 
       def parse(cmdline_args = ARGV)
diff --git a/Library/Homebrew/formula.rb b/Library/Homebrew/formula.rb
index d4c248e190..452e9e9453 100644
--- a/Library/Homebrew/formula.rb
+++ b/Library/Homebrew/formula.rb
@@ -1131,7 +1131,7 @@ class Formula
     return false unless old_rack.directory?
     return false if old_rack.subdirs.empty?
 
-    tap == Tab.for_keg(old_rack.subdirs.sort.first).tap
+    tap == Tab.for_keg(old_rack.subdirs.min).tap
   end
 
   # @private
diff --git a/Library/Homebrew/keg.rb b/Library/Homebrew/keg.rb
index 7e930cc375..02e318624b 100644
--- a/Library/Homebrew/keg.rb
+++ b/Library/Homebrew/keg.rb
@@ -129,7 +129,7 @@ class Keg
         f_kegs = kegs_by_source[[f.name, f.tap]]
         next unless f_kegs
 
-        f_kegs.sort_by(&:version).last
+        f_kegs.max_by(&:version)
       end.compact
 
       next if required_kegs.empty?