From a670654882063f0e89a5e450a16dc3cda2ed4030 Mon Sep 17 00:00:00 2001
From: Gannon McGibbon <gannon.mcgibbon@gmail.com>
Date: Wed, 23 Jan 2019 17:24:52 -0500
Subject: Fix deeply nested namespace command printing

---
 railties/lib/rails/command/base.rb | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

(limited to 'railties/lib/rails')

diff --git a/railties/lib/rails/command/base.rb b/railties/lib/rails/command/base.rb
index 766872de8a..a22b198c66 100644
--- a/railties/lib/rails/command/base.rb
+++ b/railties/lib/rails/command/base.rb
@@ -115,7 +115,7 @@ module Rails
         # For a Rails::Command::TestCommand placed in <tt>rails/command/test_command.rb</tt>
         # would return <tt>rails/test</tt>.
         def default_command_root
-          path = File.expand_path(File.join("../commands", command_root_namespace), __dir__)
+          path = File.expand_path(relative_command_path, __dir__)
           path if File.exist?(path)
         end
 
@@ -135,12 +135,20 @@ module Rails
           end
 
           def command_root_namespace
-            (namespace.split(":") - %w( rails )).first
+            (namespace.split(":") - %w(rails)).join(":")
+          end
+
+          def relative_command_path
+            File.join("../commands", *command_root_namespace.split(":"))
           end
 
           def namespaced_commands
             commands.keys.map do |key|
-              key == command_root_namespace ? key : "#{command_root_namespace}:#{key}"
+              if command_root_namespace.match?(/(\A|\:)#{key}\z/)
+                command_root_namespace
+              else
+                "#{command_root_namespace}:#{key}"
+              end
             end
           end
       end
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