There was a `requirements/pip.txt` with old versions, and a newer
`requirements/edx/pip.txt` managed via a `pip.in` file. The old one was
used in most places, but came out of sync with pip-tools.txt, which was
managed properly. Eventually this caused a `pip check` failure due to the
mismatch.
This should resolve at least part of https://github.com/edx/edx-arch-experiments/issues/267
This PR moves pip.in and pip-tools.in and their corresponding pin files
up to the `requirements/` dir, since they should be shared between the edx
and sandbox environments. This also has the effect of upgrading pip to
match the version in the file we've been uselessly upgrading.
Other improvements:
- Remove `-q` option from pip and pip-sync calls, as it was hiding some
debugging information that would have resolved this sooner.
- Depend on `pre-requirements` from `compile-requirements`, rather than
from `upgrade`. (The base target is the one that actually needs it.)
This also lets us remove the explicit `pip install pip-tools` line.
- Install the recompiled pip and pip-tools files right away, not after the
loop. When we upgrade pip-tools, we want to use the upgraded version,
not the previous version. This requires moving the pip-tools.txt
recompilation outside of the loop and into its own explicit line.
- Don't upgrade pip if we're not running `make upgrade` (respect the
compile options).
- Remove apparently-unneeded `--no-emit-trusted-host --no-emit-index-url`
options (we don't pass trusted-host or index-url options).