chef

https://github.com/opscode/chef

Ruby

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

Chef::REST#fetch

Streams a download to a tempfile, then yields the tempfile to a block.
After the download, the tempfile will be closed and unlinked.
If you rename the tempfile, it will not be deleted.
Beware that if the server streams infinite content, this method will
stream it until you run out of disk space.

Source | Google | Stack overflow

Edit

git clone [email protected]:opscode/chef.git
cd chef
open lib/chef/rest.rb

Contribute

# Make a new branch

git checkout -b -your-name--update-docs-Chef--REST-fetch-for-pr

# Commit to git

git add lib/chef/rest.rbgit commit -m "better docs for Chef::REST#fetch"

# 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--REST-fetch-for-pr

hub pull-request

# Celebrate!