Deprecate `brew cask update`.

1 files changed, 17 insertions, 0 deletions

diff --git a/Library/Homebrew/compat/hbc/cli/update.rb b/Library/Homebrew/compat/hbc/cli/update.rb
new file mode 100644
index 000000000..32186472b
--- /dev/null
+++ b/Library/Homebrew/compat/hbc/cli/update.rb
@@ -0,0 +1,17 @@
+module Hbc
+  class CLI
+    class Update < Base
+      def self.run(*_ignored)
+        odeprecated "`brew cask update`", "`brew update`", disable_on: Time.utc(2017, 7, 1)
+        result = SystemCommand.run(HOMEBREW_BREW_FILE, args:         ["update"],
+                                                       print_stderr: true,
+                                                       print_stdout: true)
+        exit result.exit_status
+      end
+
+      def self.help
+        "a synonym for 'brew update'"
+      end
+    end
+  end
+end