Mercurial > hg
annotate mercurial/node.py @ 38618:c829749e7639
shelve: directly handle the initial parent alignment
Shelve is currently sub-contracting some of its work to the rebase extension.
In order to make shelve more independent and flexible we would like shelve to
handle the parent alignment directly.
After this change, we no longer need to use rebase in shelve.
Differential Revision: https://phab.mercurial-scm.org/D3693
author | Boris Feld <boris.feld@octobus.net> |
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date | Tue, 29 May 2018 00:30:50 +0200 |
parents | d7114f883505 |
children | b623c7b23695 |
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1 # node.py - basic nodeid manipulation for mercurial |
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2 # |
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3 # Copyright 2005, 2006 Matt Mackall <mpm@selenic.com> |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
10263 | 6 # GNU General Public License version 2 or any later version. |
1089 | 7 |
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8 from __future__ import absolute_import |
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9 |
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10 import binascii |
1089 | 11 |
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12 # This ugly style has a noticeable effect in manifest parsing |
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13 hex = binascii.hexlify |
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14 # Adapt to Python 3 API changes. If this ends up showing up in |
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15 # profiles, we can use this version only on Python 3, and forward |
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16 # binascii.unhexlify like we used to on Python 2. |
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17 def bin(s): |
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18 try: |
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19 return binascii.unhexlify(s) |
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20 except binascii.Error as e: |
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21 raise TypeError(e) |
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22 |
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23 nullrev = -1 |
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24 nullid = b"\0" * 20 |
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25 nullhex = hex(nullid) |
1089 | 26 |
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27 # Phony node value to stand-in for new files in some uses of |
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28 # manifests. |
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29 newnodeid = '!' * 20 |
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30 addednodeid = ('0' * 15) + 'added' |
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31 modifiednodeid = ('0' * 12) + 'modified' |
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32 |
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33 wdirfilenodeids = {newnodeid, addednodeid, modifiednodeid} |
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34 |
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35 # pseudo identifiers for working directory |
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36 # (they are experimental, so don't add too many dependencies on them) |
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37 wdirrev = 0x7fffffff |
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38 wdirid = b"\xff" * 20 |
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39 wdirhex = hex(wdirid) |
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40 |
1089 | 41 def short(node): |
42 return hex(node[:6]) |