documentation: add some internals documentation about bid merge
This is an important algorithm that was only documented on the wiki so far.
Some update to the algorithm (and associated doc) is to expected in the future
since the bid merge algorithm is bug-ridden when it comes to file deletion comes
to play.
Differential Revision: https://phab.mercurial-scm.org/D8711
from __future__ import absolute_import, print_function
import argparse
import os
import zipfile
ap = argparse.ArgumentParser()
ap.add_argument("out", metavar="some.zip", type=str, nargs=1)
args = ap.parse_args()
reporoot = os.path.normpath(os.path.join(os.path.dirname(__file__), '..', '..'))
dirstate = os.path.join(reporoot, '.hg', 'dirstate')
with zipfile.ZipFile(args.out[0], "w", zipfile.ZIP_STORED) as zf:
if os.path.exists(dirstate):
with open(dirstate, 'rb') as f:
zf.writestr("dirstate", f.read())