Ruby

Reduce allocations in Gem::BUNDLED_GEMS.warning?

[rubygems/rubygems] Add Errno::ENETDOWN and Errno::EHOSTUNREACH to non retryable errors

Connection errors as well, so useless to retry.

https://github.com/rubygems/rubygems/commit/d2d211651a

[rubygems/rubygems] Split HTTP_ERRORS into retryable and non retryable

https://github.com/rubygems/rubygems/commit/c241a640fc

[rubygems/rubygems] Handle connection refused and Errno::EADDRNOTAVAIL as non-retryable

https://github.com/rubygems/rubygems/commit/cd529776d5

[rubygems/rubygems] Refactor downloader specs to better test real behavior

In particular, no route to host errors are actually fatal since they are
usually raised as SocketError's, while the specs were incorrectly
testing that they are retryable.

https://github.com/rubygems/rubygems/commit/9410ceb36b

[rubygems/rubygems] Move Bundler::Fetcher::HTTP_ERRORS to Bundler::Fetcher::DOWNLOADER

And deprecate the old constant.

It's only used in this class, and in Bundler::Fetcher there's already
FAIL_ERRORS, very similar to it. So this makes things less confusing....

[rubygems/rubygems] Add back and deprecate Bundler::Fetcher::NET_ERRORS

https://github.com/rubygems/rubygems/commit/4a4e5828db

[rubygems/rubygems] Fix typos

https://github.com/rubygems/rubygems/commit/2a2317249f

[rubygems/rubygems] Add a verbose setting to enable verbose output for all commands

https://github.com/rubygems/rubygems/commit/0aa1be946f

[rubygems/rubygems] Consistently access CLI flags with symbols

https://github.com/rubygems/rubygems/commit/1497d3f146