carrierwave

https://github.com/carrierwaveuploader/carrierwave

Ruby

Classier solution for file uploads for Rails, Sinatra and other Ruby web frameworks

Mail::Utilities.to_crlf

Convert line endings to \r\n unless the string is binary. Used for
encoding 8bit and base64 Content-Transfer-Encoding and for convenience
when parsing emails with \n line endings instead of the required \r\n.

Source | Google | Stack overflow

Edit

git clone [email protected]:carrierwaveuploader/carrierwave.git

cd carrierwave

open

Contribute

# Make a new branch

git checkout -b -your-name--update-docs-Mail--Utilities-to_crlf-for-pr

# Commit to git

git add git commit -m "better docs for Mail::Utilities.to_crlf"

# Open pull request

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

hub fork

git push <your name> -your-name--update-docs-Mail--Utilities-to_crlf-for-pr

hub pull-request

# Celebrate!