From ee1da7ec98f08622d925302b2037a690a8935a80 Mon Sep 17 00:00:00 2001
From: Ruoyu Zhong <zhongruoyu@outlook.com>
Date: Sat, 7 Dec 2024 10:00:53 +0800
Subject: [PATCH] cmd/alias: refactor

This fixes the typecheck issues due to Homebrew/brew#18867. The logic is
also refactored to make it hopefully easier to understand than before.

This also fixes the issue where the plain `brew alias` command would not
print anything due to incorrect usage of `Aliases.show`.
---
 cmd/alias.rb | 26 +++++++++++++-------------
 1 file changed, 13 insertions(+), 13 deletions(-)

diff --git a/cmd/alias.rb b/cmd/alias.rb
index 55e6cea..36c00e9 100755
--- a/cmd/alias.rb
+++ b/cmd/alias.rb
@@ -20,26 +20,26 @@ class Alias < AbstractCommand
 
       sig { override.void }
       def run
-        arg = args.named.first
-        split_arg = arg.split("=", 2) if arg.present?
+        name = args.named.first
+        name, command = name.split("=", 2) if name.present?
 
         Aliases.init
 
-        if args.edit?
-          if arg.blank?
+        if name.nil?
+          if args.edit?
             Aliases.edit_all
-          elsif /.=./.match?(arg)
-            Aliases.add(*split_arg)
-            Aliases.edit(split_arg.first)
           else
-            Aliases.edit arg
+            Aliases.each([]) { |name| Aliases::show name }
+          end
+        elsif command.nil?
+          if args.edit?
+            Aliases.edit name
+          else
+            Aliases.show name
           end
-        elsif /.=./.match?(arg)
-          Aliases.add(*split_arg)
-        elsif arg.present?
-          Aliases.show arg
         else
-          Aliases.show
+          Aliases.add name, command
+          Aliases.edit name if args.edit?
         end
       end
     end