chef

https://github.com/opscode/chef

Ruby

A systems integration framework, built to bring the benefits of configuration management to your entire infrastructure.

Chef::Provider::Package::Yum#flushcache

cache flushing is accomplished by simply restarting the python helper.  this produces a roughly
15% hit to the runtime of installing/removing/upgrading packages.  correctly using multipackage
array installs (and the multipackage cookbook) can produce 600% improvements in runtime.

Source | Google | Stack overflow

Edit

git clone [email protected]:opscode/chef.git

cd chef

open lib/chef/provider/package/yum.rb

Contribute

# Make a new branch

git checkout -b -your-name--update-docs-Chef--Provider--Package--Yum-flushcache-for-pr

# Commit to git

git add lib/chef/provider/package/yum.rbgit commit -m "better docs for Chef::Provider::Package::Yum#flushcache"

# Open pull request

gem install hub # on a mac you can `brew install hub`

hub fork

git push <your name> -your-name--update-docs-Chef--Provider--Package--Yum-flushcache-for-pr

hub pull-request

# Celebrate!