/usr/share/puppet/modules.available/manila/Gemfile is in puppet-module-manila 7.0.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 | source ENV['GEM_SOURCE'] || "https://rubygems.org"
group :development, :test do
  gem 'puppetlabs_spec_helper',               :require => 'false'
  gem 'rspec-puppet', '~> 2.2.0',             :require => 'false'
  gem 'metadata-json-lint',                   :require => 'false'
  gem 'puppet-lint-param-docs',               :require => 'false'
  gem 'puppet-lint-absolute_classname-check', :require => 'false'
  gem 'puppet-lint-absolute_template_path',   :require => 'false'
  gem 'puppet-lint-trailing_newline-check',   :require => 'false'
  gem 'puppet-lint-unquoted_string-check',    :require => 'false'
  gem 'puppet-lint-leading_zero-check',       :require => 'false'
  gem 'puppet-lint-variable_contains_upcase', :require => 'false'
  gem 'puppet-lint-numericvariable',          :require => 'false'
  gem 'json',                                 :require => 'false'
  gem 'webmock',                              :require => 'false'
end
group :system_tests do
  gem 'beaker-rspec',                 :require => 'false'
  gem 'beaker-puppet_install_helper', :require => 'false'
  gem 'r10k',                         :require => 'false'
end
if facterversion = ENV['FACTER_GEM_VERSION']
  gem 'facter', facterversion, :require => false
else
  gem 'facter', :require => false
end
if puppetversion = ENV['PUPPET_GEM_VERSION']
  gem 'puppet', puppetversion, :require => false
else
  gem 'puppet', :require => false
end
# vim:ft=ruby
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