[ruby-core:113609] [Ruby master Bug#19687] Should a development version of the standard library be included in ruby/ruby?

Issue #19687 has been updated by jaruga (Jun Aruga).


> Could you show the output of gem list | grep stringio?

Sure. Below is the result.

```
$ which gem
~/.local/ruby-bd786e7896/bin/gem

$ gem list | grep stringio
stringio (default: 3.0.7)
```

I was able to reproduce this on the latest master branch `78e9197f4a01676ab194d014d20c3ba4e9a1ee87` in the ruby/opnessl.

```
$ git remote -v | grep origin
origin	[e-mail]:ruby/openssl.git (fetch)
origin	[e-mail]:ruby/openssl.git (push)

$ git log --pretty=oneline | head -1
78e9197f4a01676ab194d014d20c3ba4e9a1ee87 Merge pull request #623 from junaruga/wip/enable-mkmf-verbose

$ bundle install --standalone
Fetching gem metadata from https://rubygems.org/.........
Resolving dependencies...
Fetching rake 13.0.6
Installing rake 13.0.6
Using bundler 2.5.0.dev
Using openssl 3.1.0 from source at `.`
Fetching power_assert 2.0.3
stringio-3.0.7 is built in to Ruby, and can't be cached because your Gemfile doesn't have any sources that contain it.
Fetching rake-compiler 1.2.1
Installing power_assert 2.0.3
Fetching test-unit 3.5.8
Installing rake-compiler 1.2.1
Installing test-unit 3.5.8
Bundler::GemNotFound: Could not find stringio-3.0.7.gem for installation
  /home/jaruga/.local/ruby-bd786e7896/lib/ruby/3.3.0+0/bundler/source/rubygems.rb:157:in
`install'
/home/jaruga/.local/ruby-bd786e7896/lib/ruby/3.3.0+0/bundler/installer/gem_installer.rb:54:in
`install'
/home/jaruga/.local/ruby-bd786e7896/lib/ruby/3.3.0+0/bundler/installer/gem_installer.rb:16:in
`install_from_spec'
/home/jaruga/.local/ruby-bd786e7896/lib/ruby/3.3.0+0/bundler/installer/parallel_installer.rb:156:in
`do_install'
/home/jaruga/.local/ruby-bd786e7896/lib/ruby/3.3.0+0/bundler/installer/parallel_installer.rb:147:in
`block in worker_pool'
  /home/jaruga/.local/ruby-bd786e7896/lib/ruby/3.3.0+0/bundler/worker.rb:62:in `apply_func'
/home/jaruga/.local/ruby-bd786e7896/lib/ruby/3.3.0+0/bundler/worker.rb:57:in `block in
process_queue'
  <internal:kernel>:187:in `loop'
  /home/jaruga/.local/ruby-bd786e7896/lib/ruby/3.3.0+0/bundler/worker.rb:54:in `process_queue'
/home/jaruga/.local/ruby-bd786e7896/lib/ruby/3.3.0+0/bundler/worker.rb:90:in `block (2
levels) in create_threads'

An error occurred while installing stringio (3.0.7), and Bundler cannot continue.

In Gemfile:
  rdoc was resolved to 6.5.0, which depends on
    psych was resolved to 5.1.0, which depends on
      stringio
```



----------------------------------------
Bug #19687: Should a development version of the standard library be included in ruby/ruby?
https://bugs.ruby-lang.org/issues/19687#change-103253

* Author: jaruga (Jun Aruga)
* Status: Feedback
* Priority: Normal
* Assignee: kou (Kouhei Sutou)
* ruby -v: ruby 3.3.0dev (2023-05-22T03:58:17Z master bd786e7896) [x86_64-linux]
* Backport: 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN
----------------------------------------
The `stringio` gem uses the value of the `STRINGIO_VERSION` as the gem version.

https://github.com/ruby/ruby/blob/31ac8efca8ecb574e1e7b7c32cce54cb1b97f19a/ext/stringio/stringio.gemspec#L15
https://github.com/ruby/ruby/blob/31ac8efca8ecb574e1e7b7c32cce54cb1b97f19a/ext/stringio/stringio.c#L15

```
#define STRINGIO_VERSION "3.0.7"
```

It seems that that `stringio` on the current master branch in ruby/ruby sets the version 3.0.7 that doesn't exist in the RubyGems <https://rubygems.org/gems/stringio> by the commit <https://github.com/ruby/ruby/commit/67743d582317544d2c830b63d3423b04bad185a7>.

And I see that this causes raising an error when running `bundle install` on ruby/openssl with Ruby on the master branch. I captured the `Gemeifile.lock` by `bundle lock`. And I see the `rdoc` depending on `psych` depending on `stringio`.

The workaround was to add `gem "stringio", "< 3.0.7"` to the `Gemfile`. However, it's not convenient. Is it an expected behavior? Or should the ruby/ruby always merge the static version of the ruby/* (upstream standard libraries such as "stringio") rater than the development version?

```
$ which ruby
~/.local/ruby-bd786e7896/bin/ruby

$ ruby -v
ruby 3.3.0dev (2023-05-22T03:58:17Z master bd786e7896) [x86_64-linux]

$ pwd
/home/jaruga/git/ruby/openssl

$ bundle install --standalone
...
stringio-3.0.7 is built in to Ruby, and can't be cached because your Gemfile doesn't have any sources that contain it.
...
Bundler::GemNotFound: Could not find stringio-3.0.7.gem for installation
  /home/jaruga/.local/ruby-bd786e7896/lib/ruby/3.3.0+0/bundler/source/rubygems.rb:157:in
`install'
/home/jaruga/.local/ruby-bd786e7896/lib/ruby/3.3.0+0/bundler/installer/gem_installer.rb:54:in
`install'
/home/jaruga/.local/ruby-bd786e7896/lib/ruby/3.3.0+0/bundler/installer/gem_installer.rb:16:in
`install_from_spec'
/home/jaruga/.local/ruby-bd786e7896/lib/ruby/3.3.0+0/bundler/installer/parallel_installer.rb:156:in
`do_install'
/home/jaruga/.local/ruby-bd786e7896/lib/ruby/3.3.0+0/bundler/installer/parallel_installer.rb:147:in
`block in worker_pool'
  /home/jaruga/.local/ruby-bd786e7896/lib/ruby/3.3.0+0/bundler/worker.rb:62:in `apply_func'
/home/jaruga/.local/ruby-bd786e7896/lib/ruby/3.3.0+0/bundler/worker.rb:57:in `block in
process_queue'
  <internal:kernel>:187:in `loop'
  /home/jaruga/.local/ruby-bd786e7896/lib/ruby/3.3.0+0/bundler/worker.rb:54:in `process_queue'
/home/jaruga/.local/ruby-bd786e7896/lib/ruby/3.3.0+0/bundler/worker.rb:90:in `block (2
levels) in create_threads'

An error occurred while installing stringio (3.0.7), and Bundler cannot continue.
```




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