hgext/git/gitutil.py
author Manuel Jacob <me@manueljacob.de>
Tue, 31 May 2022 03:06:05 +0200
changeset 49300 227124098e14
parent 49290 76f56d69a457
child 49849 de9ffb82ef4d
permissions -rw-r--r--
py3: use `x.hex()` instead of `pycompat.sysstr(node.hex(x))`
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"""utilities to assist in working with pygit2"""
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from mercurial.node import bin, sha1nodeconstants
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pygit2_module = None
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def get_pygit2():
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    global pygit2_module
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    if pygit2_module is None:
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        try:
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            import pygit2 as pygit2_module
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            pygit2_module.InvalidSpecError
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        except (ImportError, AttributeError):
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            pass
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    return pygit2_module
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def pygit2_version():
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    mod = get_pygit2()
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    v = "N/A"
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    if mod:
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        try:
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            v = mod.__version__
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        except AttributeError:
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            pass
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    return b"(pygit2 %s)" % v.encode("utf-8")
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def togitnode(n):
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    """Wrapper to convert a Mercurial binary node to a unicode hexlified node.
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    pygit2 and sqlite both need nodes as strings, not bytes.
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    """
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    assert len(n) == 20
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    return n.hex()
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def fromgitnode(n):
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    """Opposite of togitnode."""
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    assert len(n) == 40
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    return bin(n)
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nullgit = togitnode(sha1nodeconstants.nullid)