1 """utilities to assist in working with pygit2"""

     2 from __future__ import absolute_import

     3 

     4 from mercurial.node import bin, hex, nullid

     5 

     6 from mercurial import pycompat

     7 

     8 

     9 def togitnode(n):

    10     """Wrapper to convert a Mercurial binary node to a unicode hexlified node.

    11 

    12     pygit2 and sqlite both need nodes as strings, not bytes.

    13     """

    14     assert len(n) == 20

    15     return pycompat.sysstr(hex(n))

    16 

    17 

    18 def fromgitnode(n):

    19     """Opposite of togitnode."""

    20     assert len(n) == 40

    21     if pycompat.ispy3:

    22         return bin(n.encode('ascii'))

    23     return bin(n)

    24 

    25 

    26 nullgit = togitnode(nullid)