Add wpt frontend for commands

[jgraham]

This change is 

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Firefox (nightly)

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Sauce (safari)

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Chrome (unstable)

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[bobholt]

This looks like it's still a work-in-progress with (since the build's not passing). Overall, I like how this simplifies the component modules. I left a couple of line comments for things that jumped out at me in this revision, but am pretty much 👍 as long as the builds work. I'd like to see a sample flakey test run with this before merging.

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Reviewed 31 of 31 files at r1.
Review status: all files reviewed at latest revision, 2 unresolved discussions, some commit checks failed.

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tools/browserutils/install.py, line 18 at r1 (raw file):

def run(venv, **kwargs):
    browser = kwargs["browser"]
    if venv and kwargs["destination"] is None:

This doesn't account for the not venv and kwargs["destination"] is None case (where destination wouldn't get assigned). If the existence of venv is checked in another script, the check isn't needed here.

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tools/wpt/run.py, line 18 at r1 (raw file):

<<<<<<< HEAD

Unresolved merge conflict that may be causing some errors.

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Comments from Reviewable

[jgraham]

Yeah, this isn't done, just pushing it here for a little visibility.

[gsnedders]

How does this relate to #6237?

[jgraham]

This is more stuff on top of that one.

[bobholt]

👍 when the tests pass. @gsnedders do you have any interest in taking another pass at this?

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Reviewed 1 of 35 files at r1, 2 of 29 files at r3, 3 of 3 files at r4, 3 of 3 files at r5.
Review status: all files reviewed at latest revision, 3 unresolved discussions, some commit checks failed.

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tools/wpt/install.py, line 18 at r1 (raw file):

Previously, bobholt (Bob Holt) wrote…

Ping

LGTM

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Comments from Reviewable

[gsnedders]

@bobholt As I said to @jgraham an hour ago, I don't think there's much worth is spending more time on reviewing this; my quick skim before didn't really find anything notable, and I doubt I'll find much more than what you have… though I'll inevitable find stuff in six months regardless of whether I review it now or not. :)

[gsnedders]

Reviewed 15 of 35 files at r1, 4 of 12 files at r2, 22 of 29 files at r3, 3 of 3 files at r4, 1 of 3 files at r5, 10 of 10 files at r6.
Review status: all files reviewed at latest revision, 1 unresolved discussion, all commit checks successful.

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Comments from Reviewable