contrib/asv.conf.json

phabricator: add a `phabimport` command

I've had `alias.phabimport = $hg phabread --stack $1 | $hg import --bypass -`
for a while now, and I suspect others do too.  That's limited though, in that it
can't use the information on Phabricator to restore it in the original location,
so I'm making it a first class command.

This doesn't do anything ambitious like that- this is mostly a simplification of
`hg import` to get the equivalent of the alias mentioned above.  The `--bypass`
option is hardcoded to be enabled and the message about amending rejects
dropped (rejects aren't created with `--bypass`), because editing patches on
Phabricator seems like an unusual workflow.

This will need other options, like `--obsolete` and `--secret`.  I think these
would be more useful as config settings, as I imagine the workflows are pretty
fixed depending on roles.  Reviewers who don't queue patches probably never want
`--obsolete`, but may need `--secret`.  Reviewers who do will want the former,
but not the latter.  I left `--stack` as an option, but that should probably be
a config knob too (or at least default to on)- if the point of this is to avoid
rejects, it doesn't make sense to skip dependencies in most cases.

Evolve is going to need a fix to its wrapping of `cmdutil.tryimportone()`, as it
currently assumes `opts` has an `obsolete` key.  It's worked around for now.

Differential Revision: https://phab.mercurial-scm.org/D8136

{
    "version": 1,
    "project": "mercurial",
    "project_url": "https://mercurial-scm.org/",
    "repo": "..",
    "branches": ["default", "stable"],
    "environment_type": "virtualenv",
    "show_commit_url": "https://www.mercurial-scm.org/repo/hg/rev/",
    "benchmark_dir": "benchmarks",
    "env_dir": "../.asv/env",
    "results_dir": "../.asv/results",
    "html_dir": "../.asv/html"
}