Can't launch since 1.4.0

[felipec]

Since 1.4.0 I'm unable to launch irb. I get this error:

<internal:/usr/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:85:in `require': cannot load such file -- rdoc (LoadError)
	from <internal:/usr/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:85:in `require'
	from /usr/lib/ruby/gems/3.0.0/gems/irb-1.4.1/lib/irb/input-method.rb:17:in `<top (required)>'

I don't have rdoc, and I don't see why it should be hard dependency.

[Maumagnaguagno]

I had the same error and installed rdoc to solve it.
The error is related to commit 0267004.
Maybe the require 'rdoc' from lib/irb/input-method.rb can be removed from line 17 as there is already a rescue LoadError at line 315 for rdoc.

EDIT: The rescue block has been removed in 5f749c6.

[junaruga]

@felipec Are you using Fedora Ruby RPM package where the the irb (rubygem-irb RPM package)'s rdoc (rubygem-rdoc RPM package) is optional?

if it is, the solution for now is to run sudo dnf install rubygem-rdoc.

The issue was fixed on the latest master branch on this IRB project.

[felipec]

@junaruga No, I'm using Arch Linux. The issue seems to be fixes because ruby requires ruby-rdoc now. I don't think it should, but oh well, at least it works.

[junaruga]

No, I'm using Arch Linux. The issue seems to be fixes because ruby requires ruby-rdoc now. I don't think it should, but oh well, at least it works.

OK. I am not sure if the Arch package system has a concept of soft dependency. In Fedora, the packaging system called RPM has a concept of "weak dependency" that is like soft dependency. Users can select if they will download weak dependencies of the main package by the packaging command's configuration setting. The rubygem-rdoc RPM is a weak dependency of the rubygem-irb RPM now.

[junaruga]

Fixed at 54c8df0 and b248520 .

[felipec]

@junaruga Yes, pacman does have optional depends, but for some reason the maintainer of the package opted to not make them optional: PKGBUILD.