# extension to emulate invoking 'patch.internalpatch()' at the time

# specified by '[fakepatchtime] fakenow'

from __future__ import absolute_import

from mercurial import (

    extensions,

    patch as patchmod,

    registrar,

)

from mercurial.utils import dateutil

configtable = {}

configitem = registrar.configitem(configtable)

configitem(b'fakepatchtime', b'fakenow',

    default=None,

)

def internalpatch(orig, ui, repo, patchobj, strip,

                  prefix=b'', files=None,

                  eolmode=b'strict', similarity=0):

    if files is None:

        files = set()

    r = orig(ui, repo, patchobj, strip,

             prefix=prefix, files=files,

             eolmode=eolmode, similarity=similarity)

    fakenow = ui.config(b'fakepatchtime', b'fakenow')

    if fakenow:

        # parsing 'fakenow' in YYYYmmddHHMM format makes comparison between

        # 'fakenow' value and 'touch -t YYYYmmddHHMM' argument easy

        fakenow = dateutil.parsedate(fakenow, [b'%Y%m%d%H%M'])[0]

        for f in files:

            repo.wvfs.utime(f, (fakenow, fakenow))

    return r

def extsetup(ui):

    extensions.wrapfunction(patchmod, 'internalpatch', internalpatch)