contrib/benchmarks/revset.py

largefiles: call readstandin() with changectx itself instead of rev or node

readstandin() takes "node" argument to get changectx by "repo[node]".

There are some readstandin() invocations, which use ctx.node(),
ctx.rev(), or '.' as "node" argument above, even though corresponded
changectx object is already looked up on caller side.

This patch calls readstandin() with already known changectx itself, to
avoid meaningless re-construction of changectx (indirect case via
copytostore() is also included).

BTW, copytostore() uses "rev" argument only for readstandin()
invocation. Therefore, this patch also renames it to "revorctx" to
indicate that it can take not only revision ID or so but also
changectx, for readability.

# revset.py - asv revset benchmarks
#
# Copyright 2016 Logilab SA <[e-mail]>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.

'''ASV revset benchmarks generated from contrib/base-revsets.txt

Each revset benchmark is parameterized with variants (first, last, sort, ...)
'''

from __future__ import absolute_import

import os
import string
import sys

from . import basedir, perfbench

def createrevsetbenchmark(baseset, variants=None):
    if variants is None:
        # Default variants
        variants = ["plain", "first", "last", "sort", "sort+first",
                    "sort+last"]
    fname = "track_" + "_".join("".join([
        c if c in string.digits + string.letters else " "
        for c in baseset
    ]).split())

    def wrap(fname, baseset):
        @perfbench(name=baseset, params=[("variant", variants)])
        def f(perf, variant):
            revset = baseset
            if variant != "plain":
                for var in variant.split("+"):
                    revset = "%s(%s)" % (var, revset)
            return perf("perfrevset", revset)
        f.__name__ = fname
        return f
    return wrap(fname, baseset)

def initializerevsetbenchmarks():
    mod = sys.modules[__name__]
    with open(os.path.join(basedir, 'contrib', 'base-revsets.txt'),
              'rb') as fh:
        for line in fh:
            baseset = line.strip()
            if baseset and not baseset.startswith('#'):
                func = createrevsetbenchmark(baseset)
                setattr(mod, func.__name__, func)

initializerevsetbenchmarks()