We only want to prompt people to upgrade their pip version if the
newer version is not a post release of the version they have and
it's not a pre-release version.
os.rename causes errors to happen whenever the temporary location
is on a different device than the wheel cache directory. Using
shutil.move instead will cause it to use os.rename when it can and
fallback to copying otherwise.
importing it prevent to debug other packages with `-W error` as the
deprecation warning will raise.
Though there is still imp imported from a few vendorized packages,
and for other purposes than cache_from_source.
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)
6.1.1 and before use git clones when installing a git+ url. 7.0.0.dev
didn't temporarily because the internal flag for controlling whether
to do a clone or an export was tied into the behaviour for whether
something will be deleted or not - which is arguably different. Remove
the confounded behaviour and just unpack always, using the same marker
flag to delete directories as used for file and non-vcs urls.
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.
