[DRE-maint] Bug#1085833: `extract_and_parse_dependencies': undefined method `source' for nil:NilClass

[Gabriel Filion]

Package: librarian-puppet
Version: 5.0.0-1
Severity: important

Hello,

I've just installed librarian-puppet in sid and tried using `librarian-puppet
install` to get new dependencies from something I added to a Puppetfile and the
binary crashed with the following stack trace:

/usr/lib/ruby/vendor_ruby/librarian/puppet/lockfile.rb:32:in `extract_and_parse_dependencies': undefined method `source' for nil:NilClass (NoMethodError)

            dependencies << environment.dsl_class.dependency_type.new(name, requirement, manifests_index[name].source, 'lockfile')
                                                                                                              ^^^^^^^
	from /usr/share/rubygems-integration/all/gems/librarianp-0.6.4/lib/librarian/lockfile/parser.rb:29:in `parse'
	from /usr/lib/ruby/vendor_ruby/librarian/puppet/lockfile.rb:73:in `load'
	from /usr/share/rubygems-integration/all/gems/librarianp-0.6.4/lib/librarian/lockfile.rb:25:in `read'
	from /usr/share/rubygems-integration/all/gems/librarianp-0.6.4/lib/librarian/action/resolve.rb:16:in `run'
	from /usr/lib/ruby/vendor_ruby/librarian/puppet/action/resolve.rb:11:in `run'
	from /usr/lib/ruby/vendor_ruby/librarian/puppet/cli.rb:111:in `resolve!'
	from /usr/lib/ruby/vendor_ruby/librarian/puppet/cli.rb:68:in `install'
	from /usr/share/rubygems-integration/all/gems/thor-1.3.1/lib/thor/command.rb:28:in `run'
	from /usr/share/rubygems-integration/all/gems/thor-1.3.1/lib/thor/invocation.rb:127:in `invoke_command'
	from /usr/share/rubygems-integration/all/gems/thor-1.3.1/lib/thor.rb:527:in `dispatch'
	from /usr/share/rubygems-integration/all/gems/thor-1.3.1/lib/thor/base.rb:584:in `start'
	from /usr/share/rubygems-integration/all/gems/librarianp-0.6.4/lib/librarian/cli.rb:26:in `block (2 levels) in bin!'
	from /usr/share/rubygems-integration/all/gems/librarianp-0.6.4/lib/librarian/cli.rb:31:in `returning_status'
	from /usr/share/rubygems-integration/all/gems/librarianp-0.6.4/lib/librarian/cli.rb:26:in `block in bin!'
	from /usr/share/rubygems-integration/all/gems/librarianp-0.6.4/lib/librarian/cli.rb:47:in `with_environment'
	from /usr/share/rubygems-integration/all/gems/librarianp-0.6.4/lib/librarian/cli.rb:26:in `bin!'
	from /usr/bin/librarian-puppet:7:in `<main>'


>From what I can see, all of the files in the stack trace are part of one of
three debian packages:

* librarian-puppet
* ruby-librarian
* ruby-thor

I'm unfortuanately not sure what's happening there. Is it maybe an
incompatibility with either ruby-librarian or ruby-thor?

I can run `librarian-puppet version`, `config`, `help`, `clean` without issues
but most other actions crash with a similar stack trace. So librarian-puppet is
useless for me in this condition.

-- System Information:
Debian Release: trixie/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 6.11.2-amd64 (SMP w/16 CPU threads; PREEMPT)
Locale: LANG=en_CA.UTF-8, LC_CTYPE=en_CA.UTF-8 (charmap=UTF-8) (ignored: LC_ALL set to en_CA.utf8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages librarian-puppet depends on:
ii  libruby3.1t64 [ruby-json]  3.1.2-8.4
ii  puppet                     8.4.0-2
ii  ruby                       1:3.1+nmu1
ii  ruby-librarian             0.6.4-5
ii  ruby-puppet-forge          5.0.3-1
ii  ruby-rsync                 1.0.9-3

librarian-puppet recommends no packages.

librarian-puppet suggests no packages.

-- no debconf information