Suppress the progress bar with --quiet and --log

[q0w]

Closes #10915

[uranusjr]

Not that the combination makes a lot of sense, but what would/should pip install --quiet --progress-bar=on do? What if --log is added?

[q0w]

So, the change is useless because you could just add --progress-bar=off to silence the output?

[uranusjr]

Not useless since --quiet should disable the progress bar. I’m only wondering what happens if the user actually wants the progress bar back for some reason.

[q0w]

Allow it?

[uranusjr]

Yeah but I think your patch here as-is would not allow it?

[q0w]

Yea, im going to update the patch.

[q0w]

@uranusjr but by default progress_bar = on

[uranusjr]

Hmm. Perhaps we need to add and change the default to auto or something. Let’s do it in another PR though, in here we can make --quiet override --progress-bar=on.