From 6fe70190204807a893419e5c510cb3e961e35c35 Mon Sep 17 00:00:00 2001
From: Markus Reiter <me@reitermark.us>
Date: Mon, 19 Sep 2016 15:15:04 +0200
Subject: [PATCH 1/2] Make `HOMEBREW_PREFIX/Caskroom` the default.

---
 Library/Homebrew/cask/lib/hbc.rb           | 1 +
 Library/Homebrew/cask/lib/hbc/caskroom.rb  | 8 ++++++++
 Library/Homebrew/cask/lib/hbc/cli/list.rb  | 4 ++++
 Library/Homebrew/cask/lib/hbc/locations.rb | 2 +-
 4 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/Library/Homebrew/cask/lib/hbc.rb b/Library/Homebrew/cask/lib/hbc.rb
index b45a9f3757..fd61558abc 100644
--- a/Library/Homebrew/cask/lib/hbc.rb
+++ b/Library/Homebrew/cask/lib/hbc.rb
@@ -49,6 +49,7 @@ module Hbc
     Hbc::Cache.ensure_cache_exists
     Hbc::Cache.migrate_legacy_cache
 
+    Hbc::Caskroom.migrate_caskroom_from_repo_to_prefix
     Hbc::Caskroom.ensure_caskroom_exists
   end
 
diff --git a/Library/Homebrew/cask/lib/hbc/caskroom.rb b/Library/Homebrew/cask/lib/hbc/caskroom.rb
index cb471a125f..7d02f3fa45 100644
--- a/Library/Homebrew/cask/lib/hbc/caskroom.rb
+++ b/Library/Homebrew/cask/lib/hbc/caskroom.rb
@@ -1,6 +1,14 @@
 module Hbc::Caskroom
   module_function
 
+  def migrate_caskroom_from_repo_to_prefix
+    repo_caskroom = Hbc.homebrew_repository.join("Caskroom")
+    if !Hbc.caskroom.exist? && repo_caskroom.directory?
+      ohai "Moving Caskroom from HOMEBREW_REPOSITORY to HOMEBREW_PREFIX"
+      FileUtils.mv repo_caskroom, Hbc.caskroom
+    end
+  end
+
   def ensure_caskroom_exists
     unless Hbc.caskroom.exist?
       ohai "Creating Caskroom at #{Hbc.caskroom}"
diff --git a/Library/Homebrew/cask/lib/hbc/cli/list.rb b/Library/Homebrew/cask/lib/hbc/cli/list.rb
index ce507a827a..88907a797c 100644
--- a/Library/Homebrew/cask/lib/hbc/cli/list.rb
+++ b/Library/Homebrew/cask/lib/hbc/cli/list.rb
@@ -79,4 +79,8 @@ class Hbc::CLI::List < Hbc::CLI::Base
   def self.help
     "with no args, lists installed Casks; given installed Casks, lists staged files"
   end
+
+  def self.needs_init?
+    true
+  end
 end
diff --git a/Library/Homebrew/cask/lib/hbc/locations.rb b/Library/Homebrew/cask/lib/hbc/locations.rb
index b800cf6b6a..5e18ba8fe6 100644
--- a/Library/Homebrew/cask/lib/hbc/locations.rb
+++ b/Library/Homebrew/cask/lib/hbc/locations.rb
@@ -9,7 +9,7 @@ module Hbc::Locations
     end
 
     def default_caskroom
-      @default_caskroom ||= homebrew_repository.join("Caskroom")
+      @default_caskroom ||= homebrew_prefix.join("Caskroom")
     end
 
     def caskroom

From c0cc703516c1c32d42922dbb2af17c09fc340825 Mon Sep 17 00:00:00 2001
From: Markus Reiter <me@reitermark.us>
Date: Mon, 19 Sep 2016 15:57:36 +0200
Subject: [PATCH 2/2] update-report: Do not migrate `Caskroom` to
 `HOMEBREW_REPOSITORY`.

---
 Library/Homebrew/cmd/update-report.rb | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/Library/Homebrew/cmd/update-report.rb b/Library/Homebrew/cmd/update-report.rb
index f6e73c2eb5..c37a181c9b 100644
--- a/Library/Homebrew/cmd/update-report.rb
+++ b/Library/Homebrew/cmd/update-report.rb
@@ -231,12 +231,8 @@ module Homebrew
       FileUtils.cp_r "#{HOMEBREW_REPOSITORY}/Library/Taps", "#{new_homebrew_repository}/Library/Taps"
     end
 
-    if (HOMEBREW_REPOSITORY/"Caskroom").exist?
-      FileUtils.cp_r "#{HOMEBREW_REPOSITORY}/Caskroom", "#{new_homebrew_repository}/Caskroom"
-    end
-
     unremovable_paths = []
-    extra_remove_paths = [".git", "Library/Locks", "Library/Taps", "Caskroom",
+    extra_remove_paths = [".git", "Library/Locks", "Library/Taps",
                           "Library/Homebrew/cask", "Library/Homebrew/test"]
     (repo_files + extra_remove_paths).each do |file|
       path = Pathname.new "#{HOMEBREW_REPOSITORY}/#{file}"