Allow use of ruby-head (Ruby 2.5.0-dev)

[koic]

Thanks for the release of pry-doc 0.10.0.

So here goes the main topic.
I offen using ruby-head (currently Ruby 2.5.0-dev) with Rails.

The following change raises an exception Gem Load Error is: ruby/2.5.0 isn't supported by this pry-doc version when using ruby-head.

f2eb5f6#diff-a80fb2c425dee3addc62d4caf9a81bb2L16

Environments:

• ruby 2.5.0dev (2017-01-02 trunk 57252) [x86_64-darwin13]
• rails (5.0.1)
• pry-doc (0.10.0)

Backtrace is below.

% bundle exec rails c
/Users/koic/.rbenv/versions/2.5.0-dev/lib/ruby/gems/2.5.0/gems/activesupport-5.0.1/lib/active_support/xml_mini.rb:51: warning: constant ::Fixnum is deprecated
/Users/koic/.rbenv/versions/2.5.0-dev/lib/ruby/gems/2.5.0/gems/activesupport-5.0.1/lib/active_support/xml_mini.rb:52: warning: constant ::Bignum is deprecated
/Users/koic/.rbenv/versions/2.5.0-dev/lib/ruby/gems/2.5.0/gems/bundler-1.13.7/lib/bundler/runtime.rb:94:in `rescue in block (2 levels) in require': There was an error while trying to load the gem 'pry-doc'. (Bundler::GemRequireError)
Gem Load Error is: ruby/2.5.0 isn't supported by this pry-doc version
Backtrace for gem load error is:
/Users/koic/.rbenv/versions/2.5.0-dev/lib/ruby/gems/2.5.0/gems/pry-doc-0.10.0/lib/pry-doc.rb:10:in `load_yardoc'
/Users/koic/.rbenv/versions/2.5.0-dev/lib/ruby/gems/2.5.0/gems/pry-doc-0.10.0/lib/pry-doc.rb:20:in `<top (required)>'

Therefore, I cannot start Rails (rails c, rails s and so on) .

I'd like to use ruby-head what I can.

This PR will make changes behavior from exception to logging. That is the previous behavior.

How do you think about this change?

Thanks.

[kyrylo]

Why can't you stop depending on pry-doc?

[koic]

I'm sorry for the delay in my response.

For example, when developing a Rails application, it is a case where a programmers using Ruby 2.4.0 and a programmers using Ruby 2.5.0-dev share the Gemfile. And the dependency on pry-doc is written in this Gemfile.
(The CI guarantees the Ruby version we want to match in the production environment. So we can use a free Ruby version locally.)

If possible, I don't want to write if condition of Ruby version in Gemfile. So I hope it will behave like a previous puts warning.

And I'd like to use the edge Ruby (2.5.0-dev) with Rails in the development environment for early detection of the problem in a Rails application.

[onk]

I also want to write pry-doc to Gemfile when using ruby 2.5.0-dev.
How about making it warn instead of raise?

[kyrylo]

That sounds reasonable. Thanks for the ping 👍

[koic]

Thank you, everyone!

[kyrylo]

Just pushed v0.11.0 with this change.