From 5ef070380c4ebed01e56ff376db6363e836692f9 Mon Sep 17 00:00:00 2001
From: Douglas Eichelberger <dduugg@gmail.com>
Date: Mon, 1 Apr 2024 10:02:09 -0700
Subject: [PATCH] Port Homebrew::Cmd::RbenvSync

---
 Library/Homebrew/cmd/rbenv-sync.rb           | 95 ++++++++++----------
 Library/Homebrew/test/cmd/rbenv-sync_spec.rb |  8 ++
 2 files changed, 55 insertions(+), 48 deletions(-)
 create mode 100644 Library/Homebrew/test/cmd/rbenv-sync_spec.rb

diff --git a/Library/Homebrew/cmd/rbenv-sync.rb b/Library/Homebrew/cmd/rbenv-sync.rb
index f133a145be..bf2bbf9338 100644
--- a/Library/Homebrew/cmd/rbenv-sync.rb
+++ b/Library/Homebrew/cmd/rbenv-sync.rb
@@ -1,68 +1,67 @@
-# typed: true
+# typed: strict
 # frozen_string_literal: true
 
-require "cli/parser"
+require "abstract_command"
 require "formula"
 
 module Homebrew
-  module_function
+  module Cmd
+    class RbenvSync < AbstractCommand
+      cmd_args do
+        description <<~EOS
+          Create symlinks for Homebrew's installed Ruby versions in `~/.rbenv/versions`.
 
-  sig { returns(CLI::Parser) }
-  def rbenv_sync_args
-    Homebrew::CLI::Parser.new do
-      description <<~EOS
-        Create symlinks for Homebrew's installed Ruby versions in `~/.rbenv/versions`.
+          Note that older version symlinks will also be created so e.g. Ruby 3.2.1 will
+          also be symlinked to 3.2.0.
+        EOS
 
-        Note that older version symlinks will also be created so e.g. Ruby 3.2.1 will
-        also be symlinked to 3.2.0.
-      EOS
+        named_args :none
+      end
 
-      named_args :none
-    end
-  end
+      sig { override.void }
+      def run
+        rbenv_root = Pathname(ENV.fetch("HOMEBREW_RBENV_ROOT", Pathname(Dir.home)/".rbenv"))
 
-  sig { void }
-  def rbenv_sync
-    rbenv_root = Pathname(ENV.fetch("HOMEBREW_RBENV_ROOT", Pathname(Dir.home)/".rbenv"))
+        # Don't run multiple times at once.
+        rbenv_sync_running = rbenv_root/".rbenv_sync_running"
+        return if rbenv_sync_running.exist?
 
-    # Don't run multiple times at once.
-    rbenv_sync_running = rbenv_root/".rbenv_sync_running"
-    return if rbenv_sync_running.exist?
+        begin
+          rbenv_versions = rbenv_root/"versions"
+          rbenv_versions.mkpath
+          FileUtils.touch rbenv_sync_running
 
-    begin
-      rbenv_versions = rbenv_root/"versions"
-      rbenv_versions.mkpath
-      FileUtils.touch rbenv_sync_running
+          HOMEBREW_CELLAR.glob("ruby{,@*}")
+                         .flat_map(&:children)
+                         .each { |path| link_rbenv_versions(path, rbenv_versions) }
 
-      rbenv_sync_args.parse
+          rbenv_versions.children
+                        .select(&:symlink?)
+                        .reject(&:exist?)
+                        .each { |path| FileUtils.rm_f path }
+        ensure
+          rbenv_sync_running.unlink if rbenv_sync_running.exist?
+        end
+      end
 
-      HOMEBREW_CELLAR.glob("ruby{,@*}")
-                     .flat_map(&:children)
-                     .each { |path| link_rbenv_versions(path, rbenv_versions) }
+      private
 
-      rbenv_versions.children
-                    .select(&:symlink?)
-                    .reject(&:exist?)
-                    .each { |path| FileUtils.rm_f path }
-    ensure
-      rbenv_sync_running.unlink if rbenv_sync_running.exist?
-    end
-  end
+      sig { params(path: Pathname, rbenv_versions: Pathname).void }
+      def link_rbenv_versions(path, rbenv_versions)
+        rbenv_versions.mkpath
 
-  sig { params(path: Pathname, rbenv_versions: Pathname).void }
-  def link_rbenv_versions(path, rbenv_versions)
-    rbenv_versions.mkpath
+        version = Keg.new(path).version
+        major_version = version.major.to_i
+        minor_version = version.minor.to_i
+        patch_version = version.patch.to_i || 0
 
-    version = Keg.new(path).version
-    major_version = version.major.to_i
-    minor_version = version.minor.to_i
-    patch_version = version.patch.to_i || 0
+        (0..patch_version).each do |patch|
+          link_path = rbenv_versions/"#{major_version}.#{minor_version}.#{patch}"
 
-    (0..patch_version).each do |patch|
-      link_path = rbenv_versions/"#{major_version}.#{minor_version}.#{patch}"
-
-      FileUtils.rm_f link_path
-      FileUtils.ln_sf path, link_path
+          FileUtils.rm_f link_path
+          FileUtils.ln_sf path, link_path
+        end
+      end
     end
   end
 end
diff --git a/Library/Homebrew/test/cmd/rbenv-sync_spec.rb b/Library/Homebrew/test/cmd/rbenv-sync_spec.rb
new file mode 100644
index 0000000000..7196f77e25
--- /dev/null
+++ b/Library/Homebrew/test/cmd/rbenv-sync_spec.rb
@@ -0,0 +1,8 @@
+# frozen_string_literal: true
+
+require "cmd/rbenv-sync"
+require "cmd/shared_examples/args_parse"
+
+RSpec.describe Homebrew::Cmd::RbenvSync do
+  it_behaves_like "parseable arguments"
+end