Removed patch_for_go_gem and updated "Getting started" with bundle gem --ext=go

.github/labeler.yml

@@ -9,7 +9,3 @@ ruby:
 ruby_h_to_go:
   - changed-files:
       - any-glob-to-any-file: "_tools/ruby_h_to_go/**/*"
-
-patch_for_go_gem:
-  - changed-files:
-      - any-glob-to-any-file: "_tools/patch_for_go_gem/**/*"

.github/workflows/build.yml

@@ -14,7 +14,6 @@ on:
       - ".github/pages.yml"
       - ".github/release.yml"
       - ".github/workflows/labeler.yml"
-      - ".github/workflows/patch_for_go_gem.yml"
       - ".github/workflows/rbs-collection-updater.yml"
       - "_benchmark/**"
 

README.md

@@ -23,20 +23,11 @@
 See [.github/workflows/matrix.json](.github/workflows/matrix.json) for details
 
 ## Getting started
-At first, patch to make a gem into a Go gem right after `bundle gem`
+Run followings
 
-See [_tools/patch_for_go_gem/](_tools/patch_for_go_gem/)
-
-Please also add the following depending on the CI you are using.
-
-### GitHub Actions
-e.g.
-
-```yml
-- uses: actions/setup-go@v5
-  with:
-    go-version-file: ext/GEM_NAME/go.mod
-```
+1. `bundle gem <GEM_NAME> --ext=go` **(Requires bundler v4.0.0.beta1+)**
+2. `bundle install`
+3. `bundle exec rake go:mod_tidy`
 
 ## Implementing Ruby methods in Go
 For example, consider the following Ruby method implemented in Go

Rakefile

@@ -25,6 +25,6 @@ task :changelog, [:before, :after] do |_, params|
   sh "ruby _tools/changelog_generator/changelog_generator.rb #{args.join(" ")}"
 end
 
-task build_all: %w[ruby:build_all go:build_all go_gem:test ruby_h_to_go:test patch_for_go_gem:test]
+task build_all: %w[ruby:build_all go:build_all go_gem:test ruby_h_to_go:test]
 
 task default: :build_all

_gem/README.md

@@ -10,10 +10,6 @@ Add below.
 spec.add_dependency "go_gem"
 ```
 
-See below for details.
-
-[/_tools/patch_for_go_gem/](/_tools/patch_for_go_gem/)
-
 ## Usage
 ### [`create_go_makefile`](https://ruby-go-gem.github.io/go-gem-wrapper/GoGem/Mkmf.html#create_go_makefile-instance_method)
 `create_go_makefile` is an extension of `create_makefile`.