Bring in the extended Ruby cleanup used in chef-workstation

This resulted in a pretty nice install time win / disk space win in Workstation. Let's see if we can achieve something similar in chef/chef.

Signed-off-by: Tim Smith <tsmith@chef.io>

2 files changed, 106 insertions, 0 deletions

diff --git a/omnibus/config/projects/chef.rb b/omnibus/config/projects/chef.rb
index 115dc11490..150dccb60e 100644
--- a/omnibus/config/projects/chef.rb
+++ b/omnibus/config/projects/chef.rb
@@ -70,6 +70,9 @@ end
 
 dependency "ruby-cleanup"
 
+# further gem cleanup other projects might not yet want to use
+dependency "more-ruby-cleanup"
+
 package :rpm do
   signing_passphrase ENV["OMNIBUS_RPM_SIGNING_PASSPHRASE"]
   compression_level 1
diff --git a/omnibus/config/software/more-ruby-cleanup.rb b/omnibus/config/software/more-ruby-cleanup.rb
new file mode 100644
index 0000000000..c8725fbd1a
--- /dev/null
+++ b/omnibus/config/software/more-ruby-cleanup.rb
@@ -0,0 +1,103 @@
+#
+# Copyright:: 2019-2020 Chef Software, Inc.
+# License:: Apache License, Version 2.0
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+require "fileutils"
+
+name "more-ruby-cleanup"
+
+skip_transitive_dependency_licensing true
+license :project_license
+
+source path: "#{project.files_path}/#{name}"
+
+dependency "ruby"
+dependency "rubygems"
+
+build do
+  block "Removing additional non-code files from installed gems" do
+    # find the embedded ruby gems dir and clean it up for globbing
+    target_dir = "#{install_dir}/embedded/lib/ruby/gems/*/gems".tr('\\', "/")
+    files = %w{
+      .appveyor.yml
+      .autotest
+      .github
+      .kokoro
+      Appraisals
+      autotest/*
+      bench
+      benchmark
+      benchmarks
+      doc
+      doc-api
+      docs
+      donate.png
+      ed25519.png
+      example
+      examples
+      ext
+      frozen_old_spec
+      Gemfile.devtools
+      Gemfile.lock
+      Gemfile.travis
+      logo.png
+      man
+      rakelib
+      release-script.txt
+      sample
+      samples
+      site
+      test
+      tests
+      travis_build_script.sh
+      warning.txt
+      website
+      yard-template
+    }
+
+    Dir.glob(Dir.glob("#{target_dir}/*/{#{files.join(",")}}")).each do |f|
+      # chef stores the powershell dlls in the ext dir
+      next if File.basename(File.expand_path("..", f)).start_with?("chef-")
+
+      puts "Deleting #{f}"
+      if File.directory?(f)
+        # recursively removes files and the dir
+        FileUtils.remove_dir(f)
+      else
+        File.delete(f)
+      end
+    end
+
+    block "Removing Gemspec / Rakefile / Gemfile unless there's a bin dir" do
+      # find the embedded ruby gems dir and clean it up for globbing
+      target_dir = "#{install_dir}/embedded/lib/ruby/gems/*/gems".tr('\\', "/")
+      files = %w{
+        *.gemspec
+        Gemfile
+        Rakefile
+        tasks/*.rake
+      }
+
+      Dir.glob(Dir.glob("#{target_dir}/*/{#{files.join(",")}}")).each do |f|
+        # don't delete these files if there's a bin dir in the same dir
+        unless Dir.exist?(File.join(File.dirname(f), "bin"))
+          puts "Deleting #{f}"
+          File.delete(f)
+        end
+      end
+    end
+  end
+end