release.yml: Fix tag conversion for Ruby 4.0

and PREVIOUS_RELEASE_TAG for any .0 releases

1 files changed, 15 insertions, 0 deletions

diff --git a/tool/ruby-version.rb b/tool/ruby-version.rb
index aaaa345e75..3bbec576e1 100644..100755
--- a/tool/ruby-version.rb
+++ b/tool/ruby-version.rb
@@ -1,3 +1,5 @@
+#!/usr/bin/env ruby
+
 module RubyVersion
   def self.tag(version)
     major_version = Integer(version.split('.', 2)[0])
@@ -35,3 +37,16 @@ module RubyVersion
     end
   end
 end
+
+if __FILE__ == $0
+  case ARGV[0]
+  when "tag"
+    print RubyVersion.tag(ARGV[1])
+  when "previous"
+    print RubyVersion.previous(ARGV[1])
+  when "previous-tag"
+    print RubyVersion.tag(RubyVersion.previous(ARGV[1]))
+  else
+    "#{$0}: unexpected command #{ARGV[0].inspect}"
+  end
+end