[DRE-maint] Bug#951587: ruby-batch-loader: FTBFS against ruby2.7: cannot load such file -- irb/ruby-token

[Antonio Terceiro]

Source: ruby-batch-loader
Version: 1.4.1+dfsg.1-1
Severity: serious
Tags: ftbfs
Justification: fails to build from source
User pkg-ruby-extras-maintainers at lists.alioth.debian.org
Usertags: ruby2.7-transition

LoadError:
  cannot load such file -- irb/ruby-token
# /<<PKGBUILDDIR>>/spec/spec_helper.rb:12:in `<top (required)>'
# /<<PKGBUILDDIR>>/spec/batch_loader/middleware_spec.rb:1:in `<top (required)>'


irb/ruby-token is not provided in ruby2.7 anymore.

$ dpkg-query --show ruby2.{5,7}
ruby2.5	2.5.7-1+b1
ruby2.7	2.7.0-3
$ dpkg -S irb/ruby-token
libruby2.5:amd64: /usr/lib/ruby/2.5.0/irb/ruby-token.rb

Full build log is attached.

-- System Information:
Debian Release: bullseye/sid
  APT prefers unstable-debug
  APT policy: (500, 'unstable-debug'), (500, 'testing-debug'), (500, 'unstable'), (500, 'testing'), (1, 'experimental-debug'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 5.4.0-3-amd64 (SMP w/4 CPU cores)
Kernel taint flags: TAINT_CRAP
Locale: LANG=pt_BR.UTF-8, LC_CTYPE=pt_BR.UTF-8 (charmap=UTF-8), LANGUAGE=pt_BR:pt:en (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
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