gem install generates wrong json-2.6.2.gemspec file

[Segaja]

Running gem install on https://rubygems.org/downloads/json-2.6.2.gem results in a default gemspec file like this:

# -*- encoding: utf-8 -*-
# stub: json 2.6.2 ruby lib
# stub: ext/json/ext/generator/extconf.rbext/json/ext/parser/extconf.rbext/json/extconf.rb

Gem::Specification.new do |s|
  s.name = "json".freeze
  s.version = "2.6.2"

  s.required_rubygems_version = Gem::Requirement.new(">= 0".freeze) if s.respond_to? :required_rubygems_version=
  s.metadata = { "bug_tracker_uri" => "https://github.com/flori/json/issues", "changelog_uri" => "https://github.com/flori/json/blob/master/CHANGES.md", "documentation_uri" => "http://flori.github.io/json/doc/index.html", "homepage_uri" => "http://flori.github.io/json/", "source_code_uri" => "https://github.com/flori/json", "wiki_uri" => "https://github.com/flori/json/wiki" } if s.respond_to? :metadata=
  s.require_paths = ["lib".freeze]
  s.authors = ["Florian Frank".freeze]
  s.date = "2022-05-16"
  s.description = "This is a JSON implementation as a Ruby extension in C.".freeze
  s.email = "flori@ping.de".freeze
  s.extensions = ["ext/json/ext/generator/extconf.rb".freeze, "ext/json/ext/parser/extconf.rb".freeze, "ext/json/extconf.rb".freeze]
  s.extra_rdoc_files = ["README.md".freeze]
  s.files = ["README.md".freeze, "ext/json/ext/generator/extconf.rb".freeze, "ext/json/ext/parser/extconf.rb".freeze, "ext/json/extconf.rb".freeze]
  s.homepage = "http://flori.github.com/json".freeze
  s.licenses = ["Ruby".freeze]
  s.rdoc_options = ["--title".freeze, "JSON implementation for Ruby".freeze, "--main".freeze, "README.md".freeze]
  s.required_ruby_version = Gem::Requirement.new(">= 2.3".freeze)
  s.rubygems_version = "3.2.33".freeze
  s.summary = "JSON Implementation for Ruby".freeze

  s.installed_by_version = "3.2.33" if s.respond_to? :installed_by_version
end

The problem in this is that the s.files list doesn't list the actual json .rb files.

To fix that you have to run gem install --default on the same gem to a different folder and then copy the gemspec to the right place.

[hsbt]

It's expected. json is C extension version for JSON. json_pure is pure Ruby implementation for JSON. .rb files are provided by json_pure.

[Segaja]

And which version is provided in upstream ruby? json or json_pure?

[hsbt]

It's json.

[Segaja]

Hm, but the .gemspec file that is present in the main ruby installation has all the .rb files listed and not only the extensions. How is this done?

[hsbt]

Do you mean extconf.rb? I'm not sure what you want to do.

[Segaja]

I'm trying to recreate how the default gem json is build and stumbled over this issue of the json gemspec.

[hsbt]

I strongly don't recommend it. The default gems are only ruby installation usage, not separated package like ruby-json on Arch, Fedora or Debian.

It's not supported officially. So, It's totally package maintainers responsibility of their distribution.