puppet broken after upgrade to ruby 2.7

[que]

I have two raspberry pi's running archlinux arm. One uses puppet5, the other puppet (v6).

Following this morning's update puppet is not working on either system.

**** system #1 ****
$this->bbcode_second_pass_code('', '
[me@pi1 ~]
$ sudo /usr/bin/puppet agent --detailed-exitcodes --test
/usr/lib/ruby/vendor_ruby/2.7.0/puppet/indirector.rb:49: warning: Using the last argument as keyword parameters is deprecated; maybe ** should be added to the call
/usr/lib/ruby/vendor_ruby/2.7.0/puppet/indirector/indirection.rb:95: warning: The called method `initialize' is defined here
/usr/lib/ruby/vendor_ruby/2.7.0/puppet/util.rb:463: warning: URI.escape is obsolete
cannot load such file -- sync

[me@pi1 ~]
$ sudo tail -30 /var/log/pacman.log | grep upgraded
[2020-01-08T05:26:30-0500] [ALPM] upgraded dhcpcd (8.1.4-1 -> 8.1.5-1)
[2020-01-08T05:26:30-0500] [ALPM] upgraded rubygems (3.1.2-1 -> 3.1.2-4)
[2020-01-08T05:26:31-0500] [ALPM] upgraded ruby (2.6.5-1 -> 2.7.0-1)
[2020-01-08T05:26:31-0500] [ALPM] upgraded hiera (3.6.0-1 -> 3.6.0-1.1)
[2020-01-08T05:26:31-0500] [ALPM] upgraded ruby-semantic_puppet (1.0.2-2 -> 1.0.2-3)
[2020-01-08T05:26:31-0500] [ALPM] upgraded ruby-augeas (0.5.0-3 -> 0.5.0-4)
[2020-01-08T05:26:31-0500] [ALPM] upgraded ruby-shadow (2.5.0-4 -> 2.5.0-5)
[2020-01-08T05:26:32-0500] [ALPM] upgraded ruby-concurrent (1.1.5-1 -> 1.1.5-2)
[2020-01-08T05:26:32-0500] [ALPM] upgraded ruby-multi_json (1.14.1-1 -> 1.14.1-2)
[2020-01-08T05:26:33-0500] [ALPM] upgraded puppet (6.10.1-1 -> 6.10.1-2)
[2020-01-08T05:26:35-0500] [ALPM] upgraded vim-runtime (8.2.0033-1 -> 8.2.0100-1)
[2020-01-08T05:26:35-0500] [ALPM] upgraded vim (8.2.0033-1 -> 8.2.0100-1)
')

**** system #2 ****
$this->bbcode_second_pass_code('', '[me@pi2 ~]
$ sudo /usr/bin/puppet agent --detailed-exitcodes --test
/usr/lib/ruby/vendor_ruby/2.7.0/puppet/indirector.rb:49: warning: Using the last argument as keyword parameters is deprecated; maybe ** should be added to the call
/usr/lib/ruby/vendor_ruby/2.7.0/puppet/indirector/indirection.rb:95: warning: The called method `initialize' is defined here
/usr/lib/ruby/vendor_ruby/2.7.0/puppet/util.rb:463: warning: URI.escape is obsolete
cannot load such file -- sync

[me@pi2 ~]
$ sudo tail -30 /var/log/pacman.log | grep upgraded
[2020-01-08T05:26:30-0500] [ALPM] upgraded dhcpcd (8.1.4-1 -> 8.1.5-1)
[2020-01-08T05:26:30-0500] [ALPM] upgraded rubygems (3.1.2-1 -> 3.1.2-4)
[2020-01-08T05:26:31-0500] [ALPM] upgraded ruby (2.6.5-1 -> 2.7.0-1)
[2020-01-08T05:26:31-0500] [ALPM] upgraded hiera (3.6.0-1 -> 3.6.0-1.1)
[2020-01-08T05:26:31-0500] [ALPM] upgraded ruby-semantic_puppet (1.0.2-2 -> 1.0.2-3)
[2020-01-08T05:26:31-0500] [ALPM] upgraded ruby-augeas (0.5.0-3 -> 0.5.0-4)
[2020-01-08T05:26:31-0500] [ALPM] upgraded ruby-shadow (2.5.0-4 -> 2.5.0-5)
[2020-01-08T05:26:32-0500] [ALPM] upgraded ruby-concurrent (1.1.5-1 -> 1.1.5-2)
[2020-01-08T05:26:32-0500] [ALPM] upgraded ruby-multi_json (1.14.1-1 -> 1.14.1-2)
[2020-01-08T05:26:33-0500] [ALPM] upgraded puppet (6.10.1-1 -> 6.10.1-2)
[2020-01-08T05:26:35-0500] [ALPM] upgraded vim-runtime (8.2.0033-1 -> 8.2.0100-1)
[2020-01-08T05:26:35-0500] [ALPM] upgraded vim (8.2.0033-1 -> 8.2.0100-1)')

[que]

from the ruby 2.7 release notes:

The following libraries are no longer bundled gems. Install corresponding gems to use these features.
CMath (cmath gem)
Scanf (scanf gem)
Shell (shell gem)
Synchronizer (sync gem)
ThreadsWait (thwait gem)
E2MM (e2mmap gem)

Since the puppet package requires the sync gem, I think there should be sync gem package created ( I couldn't find one ) and that package should be added to the puppet packages, as a dependency.

If this is not the correct place to report this issue, please point me in the correct direction.

[moonman]

This is not ARM specific. You should report this to upstream ArchLinux. Changes will propagate to us automatically