and adjust the logic to match; the result is simpler.
2) Due to #1, we can remove some hairy "format_control" hacks
3) Due to #1, we have to relax the parsing and allow:
- multiple options per line
- any supported option on a line with a requirement (not just
--install-option/--global-option, although they are the only
options that are passed into a requirement)
Using --install-options, --build-options, --global-options changes
the way that setup.py behaves, and isn't honoured by the wheel code.
The new wheel autobuilding code made this very obvious - disable
the use of wheels when these options are supplied.
With wheel autobuilding in place a release blocker is some granular
way to opt-out of wheels for known-bad packages. This patch introduces
two new options: --no-binary and --only-binary to control what
archives we are willing to use on both a global and per-package basis.
This also closes#2084
Wheel cache lookups become more complex when we wish to allow binary
blacklisting. Rather than passing more parameters around, replace
cache_root with wheel_cache, and create a wheel cache in all the
relevant command entry points.
two major changes:
1) re-use the optparse options in pip.cmdoptions instead of maintaining
a custom parser
2) as a result of #1, simplify the call stack
from: parse_requirements -> parse_content -> parse_line
to: parse_requirements -> process_line
beyond #1/#2, minor cosmetics and adjusting the tests to match
