[ruby-core:69399] [Ruby trunk - Bug #11194] Refactor env-sourced proxy logic for uri/generic

Issue #11194 has been updated by Charles Nutter.


The net/http changes can be ignored; they remove an earlier incorrect mechanism for honoring the JVM properties.

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Bug #11194: Refactor env-sourced proxy logic for uri/generic
https://bugs.ruby-lang.org/issues/11194#change-52672

* Author: Charles Nutter
* Status: Open
* Priority: Normal
* Assignee: 
* ruby -v: 2.2ish
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN
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For https://github.com/jruby/jruby/issues/2983 we are modifying uri/generic.rb's find_proxy logic to also check the JVM properties used to configure proxies.

The diff is here: https://gist.github.com/headius/6272d168cf165ddf675f

There are two changes:

1. The logic for looking up proxy host and non-proxy addresses from ENV has been pulled out into private utility methods. This change should be zero-sum, and I'd like to commit it to HEAD.
2. Additional logic has been added for looking up JVM properties.

I will proceed with the refactor in (1) regardless, but I need community help:

* Any concerns about adding these methods?
* Could we perhaps check RUBY_ENGINE and put the JRuby logic in the canonical uri/generic.rb?

Currently we maintain our own fork of stdlib, and if ruby-core folks don't mind we'd REALLY like to get rid of it. That requires adding a few RUBY_ENGINE checks to MRI's stdlib.

Thoughts?



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