ORWT supports --pixel-tests, and NRWT supports -p and --pixel-tests; I think the fact that --pixel worked is a side-effect of the way that Perl supports things (unique prefixes for an arg will work), but Python's standard option parsing doesn't do that.

We can add in a --pixel synonym for -p or --pixel-tests, but you're the first person that's complained about this. Are you sure you can't rewire your brain to support the shorter -p ?

mitz has also complained about this. I guess i can try getting used to -p.

to be clear: I'm happy to add this (it's one line or less) if there's really a need, but it seems kinda silly.

The strongest argument I have is that ORWT had this for years, and as a result some people expect it to work.

My only hesitation is that since perl supported *any* unique prefix, I'm not sure how many different versions to add. Is "--pixel" enough? Are there other switches that need similar shortcuts?

This is the only one I habitually type in and have it not work (though I get confused about --new-baseline vs. --new-baselines).

Created attachment 182943 [details]
Patch

Comment on attachment 182943 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=182943&action=review

> Tools/Scripts/webkitpy/layout_tests/run_webkit_tests.py:136
> +        optparse.make_option("-p", "--pixel", "--pixel-tests", action="store_true",

I didn't realize that worked; I always assumed it was one short and one long :) .

Comment on attachment 182943 [details]
Patch

Clearing flags on attachment: 182943

Committed r139912: <http://trac.webkit.org/changeset/139912>

All reviewed patches have been landed.  Closing bug.