18     try:

    18     try:

    19         return binascii.unhexlify(s)

    19         return binascii.unhexlify(s)

    20     except binascii.Error as e:

    20     except binascii.Error as e:

    21         raise TypeError(e)

    21         raise TypeError(e)

    22 

    22 

    23 nullrev = -1

    24 nullrev = -1

    24 # In hex, this is '0000000000000000000000000000000000000000'

    25 # In hex, this is '0000000000000000000000000000000000000000'

    25 nullid = b"\0" * 20

    26 nullid = b"\0" * 20

    26 nullhex = hex(nullid)

    27 nullhex = hex(nullid)

    27 

    28 

    36 

    37 

    37 wdirfilenodeids = {newnodeid, addednodeid, modifiednodeid}

    38 wdirfilenodeids = {newnodeid, addednodeid, modifiednodeid}

    38 

    39 

    39 # pseudo identifiers for working directory

    40 # pseudo identifiers for working directory

    40 # (they are experimental, so don't add too many dependencies on them)

    41 # (they are experimental, so don't add too many dependencies on them)

    42 # In hex, this is 'ffffffffffffffffffffffffffffffffffffffff'

    43 # In hex, this is 'ffffffffffffffffffffffffffffffffffffffff'

    43 wdirid = b"\xff" * 20

    44 wdirid = b"\xff" * 20

    44 wdirhex = hex(wdirid)

    45 wdirhex = hex(wdirid)

    45 

    46 

    46 def short(node):

    48 def short(node):

    47     return hex(node[:6])

    49     return hex(node[:6])