Mercurial > hg
annotate hgext/remotefilelog/basepack.py @ 47259:07641bafa646
revlog: compress sidedata when doing "post-pull" sidedata update
All path writing sidedata are now using compression (when appropriate).
Differential Revision: https://phab.mercurial-scm.org/D10656
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Mon, 03 May 2021 23:40:05 +0200 |
parents | 59fa3890d40a |
children | 6000f5b25c9b |
rev | line source |
---|---|
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
1 from __future__ import absolute_import |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
2 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
3 import collections |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
4 import errno |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
5 import mmap |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
6 import os |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
7 import struct |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
8 import time |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
9 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
10 from mercurial.i18n import _ |
43089
c59eb1560c44
py3: manually import getattr where it is needed
Gregory Szorc <gregory.szorc@gmail.com>
parents:
43085
diff
changeset
|
11 from mercurial.pycompat import ( |
c59eb1560c44
py3: manually import getattr where it is needed
Gregory Szorc <gregory.szorc@gmail.com>
parents:
43085
diff
changeset
|
12 getattr, |
c59eb1560c44
py3: manually import getattr where it is needed
Gregory Szorc <gregory.szorc@gmail.com>
parents:
43085
diff
changeset
|
13 open, |
c59eb1560c44
py3: manually import getattr where it is needed
Gregory Szorc <gregory.szorc@gmail.com>
parents:
43085
diff
changeset
|
14 ) |
46113
59fa3890d40a
node: import symbols explicitly
Joerg Sonnenberger <joerg@bec.de>
parents:
44452
diff
changeset
|
15 from mercurial.node import hex |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
16 from mercurial import ( |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
17 policy, |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
18 pycompat, |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
19 util, |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
20 vfs as vfsmod, |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
21 ) |
44062
2d49482d0dd4
hgext: replace references to hashlib.sha1 with hashutil.sha1
Augie Fackler <augie@google.com>
parents:
43506
diff
changeset
|
22 from mercurial.utils import hashutil |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
23 from . import shallowutil |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
24 |
43506
9f70512ae2cf
cleanup: remove pointless r-prefixes on single-quoted strings
Augie Fackler <augie@google.com>
parents:
43089
diff
changeset
|
25 osutil = policy.importmod('osutil') |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
26 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
27 # The pack version supported by this implementation. This will need to be |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
28 # rev'd whenever the byte format changes. Ex: changing the fanout prefix, |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
29 # changing any of the int sizes, changing the delta algorithm, etc. |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
30 PACKVERSIONSIZE = 1 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
31 INDEXVERSIONSIZE = 2 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
32 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
33 FANOUTSTART = INDEXVERSIONSIZE |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
34 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
35 # Constant that indicates a fanout table entry hasn't been filled in. (This does |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
36 # not get serialized) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
37 EMPTYFANOUT = -1 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
38 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
39 # The fanout prefix is the number of bytes that can be addressed by the fanout |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
40 # table. Example: a fanout prefix of 1 means we use the first byte of a hash to |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
41 # look in the fanout table (which will be 2^8 entries long). |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
42 SMALLFANOUTPREFIX = 1 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
43 LARGEFANOUTPREFIX = 2 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
44 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
45 # The number of entries in the index at which point we switch to a large fanout. |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
46 # It is chosen to balance the linear scan through a sparse fanout, with the |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
47 # size of the bisect in actual index. |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
48 # 2^16 / 8 was chosen because it trades off (1 step fanout scan + 5 step |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
49 # bisect) with (8 step fanout scan + 1 step bisect) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
50 # 5 step bisect = log(2^16 / 8 / 255) # fanout |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
51 # 10 step fanout scan = 2^16 / (2^16 / 8) # fanout space divided by entries |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
41365
diff
changeset
|
52 SMALLFANOUTCUTOFF = 2 ** 16 // 8 |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
53 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
54 # The amount of time to wait between checking for new packs. This prevents an |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
55 # exception when data is moved to a new pack after the process has already |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
56 # loaded the pack list. |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
57 REFRESHRATE = 0.1 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
58 |
41249
c891a11ffe27
basepack: avoid 'rbe' mode in Python 3
Augie Fackler <augie@google.com>
parents:
40735
diff
changeset
|
59 if pycompat.isposix and not pycompat.ispy3: |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
60 # With glibc 2.7+ the 'e' flag uses O_CLOEXEC when opening. |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
61 # The 'e' flag will be ignored on older versions of glibc. |
41249
c891a11ffe27
basepack: avoid 'rbe' mode in Python 3
Augie Fackler <augie@google.com>
parents:
40735
diff
changeset
|
62 # Python 3 can't handle the 'e' flag. |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
63 PACKOPENMODE = b'rbe' |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
64 else: |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
65 PACKOPENMODE = b'rb' |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
66 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
41365
diff
changeset
|
67 |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
68 class _cachebackedpacks(object): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
69 def __init__(self, packs, cachesize): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
70 self._packs = set(packs) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
71 self._lrucache = util.lrucachedict(cachesize) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
72 self._lastpack = None |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
73 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
74 # Avoid cold start of the cache by populating the most recent packs |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
75 # in the cache. |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
76 for i in reversed(range(min(cachesize, len(packs)))): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
77 self._movetofront(packs[i]) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
78 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
79 def _movetofront(self, pack): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
80 # This effectively makes pack the first entry in the cache. |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
81 self._lrucache[pack] = True |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
82 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
83 def _registerlastpackusage(self): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
84 if self._lastpack is not None: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
85 self._movetofront(self._lastpack) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
86 self._lastpack = None |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
87 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
88 def add(self, pack): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
89 self._registerlastpackusage() |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
90 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
91 # This method will mostly be called when packs are not in cache. |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
92 # Therefore, adding pack to the cache. |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
93 self._movetofront(pack) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
94 self._packs.add(pack) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
95 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
96 def __iter__(self): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
97 self._registerlastpackusage() |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
98 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
99 # Cache iteration is based on LRU. |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
100 for pack in self._lrucache: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
101 self._lastpack = pack |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
102 yield pack |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
103 |
44452
9d2b2df2c2ba
cleanup: run pyupgrade on our source tree to clean up varying things
Augie Fackler <augie@google.com>
parents:
44062
diff
changeset
|
104 cachedpacks = {pack for pack in self._lrucache} |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
105 # Yield for paths not in the cache. |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
106 for pack in self._packs - cachedpacks: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
107 self._lastpack = pack |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
108 yield pack |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
109 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
110 # Data not found in any pack. |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
111 self._lastpack = None |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
112 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
41365
diff
changeset
|
113 |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
114 class basepackstore(object): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
115 # Default cache size limit for the pack files. |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
116 DEFAULTCACHESIZE = 100 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
117 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
118 def __init__(self, ui, path): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
119 self.ui = ui |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
120 self.path = path |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
121 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
122 # lastrefesh is 0 so we'll immediately check for new packs on the first |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
123 # failure. |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
124 self.lastrefresh = 0 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
125 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
126 packs = [] |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
127 for filepath, __, __ in self._getavailablepackfilessorted(): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
128 try: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
129 pack = self.getpack(filepath) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
130 except Exception as ex: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
131 # An exception may be thrown if the pack file is corrupted |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
132 # somehow. Log a warning but keep going in this case, just |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
133 # skipping this pack file. |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
134 # |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
135 # If this is an ENOENT error then don't even bother logging. |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
136 # Someone could have removed the file since we retrieved the |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
137 # list of paths. |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
138 if getattr(ex, 'errno', None) != errno.ENOENT: |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
139 ui.warn(_(b'unable to load pack %s: %s\n') % (filepath, ex)) |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
140 continue |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
141 packs.append(pack) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
142 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
143 self.packs = _cachebackedpacks(packs, self.DEFAULTCACHESIZE) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
144 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
145 def _getavailablepackfiles(self): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
146 """For each pack file (a index/data file combo), yields: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
147 (full path without extension, mtime, size) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
148 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
149 mtime will be the mtime of the index/data file (whichever is newer) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
150 size is the combined size of index/data file |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
151 """ |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
152 indexsuffixlen = len(self.INDEXSUFFIX) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
153 packsuffixlen = len(self.PACKSUFFIX) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
154 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
155 ids = set() |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
156 sizes = collections.defaultdict(lambda: 0) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
157 mtimes = collections.defaultdict(lambda: []) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
158 try: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
159 for filename, type, stat in osutil.listdir(self.path, stat=True): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
160 id = None |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
161 if filename[-indexsuffixlen:] == self.INDEXSUFFIX: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
162 id = filename[:-indexsuffixlen] |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
163 elif filename[-packsuffixlen:] == self.PACKSUFFIX: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
164 id = filename[:-packsuffixlen] |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
165 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
166 # Since we expect to have two files corresponding to each ID |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
167 # (the index file and the pack file), we can yield once we see |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
168 # it twice. |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
169 if id: |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
41365
diff
changeset
|
170 sizes[id] += stat.st_size # Sum both files' sizes together |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
171 mtimes[id].append(stat.st_mtime) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
172 if id in ids: |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
41365
diff
changeset
|
173 yield ( |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
41365
diff
changeset
|
174 os.path.join(self.path, id), |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
41365
diff
changeset
|
175 max(mtimes[id]), |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
41365
diff
changeset
|
176 sizes[id], |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
41365
diff
changeset
|
177 ) |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
178 else: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
179 ids.add(id) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
180 except OSError as ex: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
181 if ex.errno != errno.ENOENT: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
182 raise |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
183 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
184 def _getavailablepackfilessorted(self): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
185 """Like `_getavailablepackfiles`, but also sorts the files by mtime, |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
186 yielding newest files first. |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
187 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
188 This is desirable, since it is more likely newer packfiles have more |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
189 desirable data. |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
190 """ |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
191 files = [] |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
192 for path, mtime, size in self._getavailablepackfiles(): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
193 files.append((mtime, size, path)) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
194 files = sorted(files, reverse=True) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
195 for mtime, size, path in files: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
196 yield path, mtime, size |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
197 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
198 def gettotalsizeandcount(self): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
199 """Returns the total disk size (in bytes) of all the pack files in |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
200 this store, and the count of pack files. |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
201 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
202 (This might be smaller than the total size of the ``self.path`` |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
203 directory, since this only considers fuly-writen pack files, and not |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
204 temporary files or other detritus on the directory.) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
205 """ |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
206 totalsize = 0 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
207 count = 0 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
208 for __, __, size in self._getavailablepackfiles(): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
209 totalsize += size |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
210 count += 1 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
211 return totalsize, count |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
212 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
213 def getmetrics(self): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
214 """Returns metrics on the state of this store.""" |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
215 size, count = self.gettotalsizeandcount() |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
216 return { |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
217 b'numpacks': count, |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
218 b'totalpacksize': size, |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
219 } |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
220 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
221 def getpack(self, path): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
222 raise NotImplementedError() |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
223 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
224 def getmissing(self, keys): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
225 missing = keys |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
226 for pack in self.packs: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
227 missing = pack.getmissing(missing) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
228 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
229 # Ensures better performance of the cache by keeping the most |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
230 # recently accessed pack at the beginning in subsequent iterations. |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
231 if not missing: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
232 return missing |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
233 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
234 if missing: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
235 for pack in self.refresh(): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
236 missing = pack.getmissing(missing) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
237 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
238 return missing |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
239 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
240 def markledger(self, ledger, options=None): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
241 for pack in self.packs: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
242 pack.markledger(ledger) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
243 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
244 def markforrefresh(self): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
245 """Tells the store that there may be new pack files, so the next time it |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
246 has a lookup miss it should check for new files.""" |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
247 self.lastrefresh = 0 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
248 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
249 def refresh(self): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
250 """Checks for any new packs on disk, adds them to the main pack list, |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
251 and returns a list of just the new packs.""" |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
252 now = time.time() |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
253 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
254 # If we experience a lot of misses (like in the case of getmissing() on |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
255 # new objects), let's only actually check disk for new stuff every once |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
256 # in a while. Generally this code path should only ever matter when a |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
257 # repack is going on in the background, and that should be pretty rare |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
258 # to have that happen twice in quick succession. |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
259 newpacks = [] |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
260 if now > self.lastrefresh + REFRESHRATE: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
261 self.lastrefresh = now |
44452
9d2b2df2c2ba
cleanup: run pyupgrade on our source tree to clean up varying things
Augie Fackler <augie@google.com>
parents:
44062
diff
changeset
|
262 previous = {p.path for p in self.packs} |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
263 for filepath, __, __ in self._getavailablepackfilessorted(): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
264 if filepath not in previous: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
265 newpack = self.getpack(filepath) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
266 newpacks.append(newpack) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
267 self.packs.add(newpack) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
268 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
269 return newpacks |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
270 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
41365
diff
changeset
|
271 |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
272 class versionmixin(object): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
273 # Mix-in for classes with multiple supported versions |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
274 VERSION = None |
40506
10c10da14c5d
remotefilelog: bump pack file formats to version 2
Augie Fackler <augie@google.com>
parents:
40495
diff
changeset
|
275 SUPPORTED_VERSIONS = [2] |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
276 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
277 def _checkversion(self, version): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
278 if version in self.SUPPORTED_VERSIONS: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
279 if self.VERSION is None: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
280 # only affect this instance |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
281 self.VERSION = version |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
282 elif self.VERSION != version: |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
283 raise RuntimeError(b'inconsistent version: %d' % version) |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
284 else: |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
285 raise RuntimeError(b'unsupported version: %d' % version) |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
286 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
41365
diff
changeset
|
287 |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
288 class basepack(versionmixin): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
289 # The maximum amount we should read via mmap before remmaping so the old |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
290 # pages can be released (100MB) |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
41365
diff
changeset
|
291 MAXPAGEDIN = 100 * 1024 ** 2 |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
292 |
40506
10c10da14c5d
remotefilelog: bump pack file formats to version 2
Augie Fackler <augie@google.com>
parents:
40495
diff
changeset
|
293 SUPPORTED_VERSIONS = [2] |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
294 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
295 def __init__(self, path): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
296 self.path = path |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
297 self.packpath = path + self.PACKSUFFIX |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
298 self.indexpath = path + self.INDEXSUFFIX |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
299 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
300 self.indexsize = os.stat(self.indexpath).st_size |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
301 self.datasize = os.stat(self.packpath).st_size |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
302 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
303 self._index = None |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
304 self._data = None |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
41365
diff
changeset
|
305 self.freememory() # initialize the mmap |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
306 |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
307 version = struct.unpack(b'!B', self._data[:PACKVERSIONSIZE])[0] |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
308 self._checkversion(version) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
309 |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
310 version, config = struct.unpack(b'!BB', self._index[:INDEXVERSIONSIZE]) |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
311 self._checkversion(version) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
312 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
313 if 0b10000000 & config: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
314 self.params = indexparams(LARGEFANOUTPREFIX, version) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
315 else: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
316 self.params = indexparams(SMALLFANOUTPREFIX, version) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
317 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
318 @util.propertycache |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
319 def _fanouttable(self): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
320 params = self.params |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
41365
diff
changeset
|
321 rawfanout = self._index[FANOUTSTART : FANOUTSTART + params.fanoutsize] |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
322 fanouttable = [] |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
323 for i in pycompat.xrange(0, params.fanoutcount): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
324 loc = i * 4 |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
325 fanoutentry = struct.unpack(b'!I', rawfanout[loc : loc + 4])[0] |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
326 fanouttable.append(fanoutentry) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
327 return fanouttable |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
328 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
329 @util.propertycache |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
330 def _indexend(self): |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
41365
diff
changeset
|
331 nodecount = struct.unpack_from( |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
332 b'!Q', self._index, self.params.indexstart - 8 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
41365
diff
changeset
|
333 )[0] |
40506
10c10da14c5d
remotefilelog: bump pack file formats to version 2
Augie Fackler <augie@google.com>
parents:
40495
diff
changeset
|
334 return self.params.indexstart + nodecount * self.INDEXENTRYLENGTH |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
335 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
336 def freememory(self): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
337 """Unmap and remap the memory to free it up after known expensive |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
338 operations. Return True if self._data and self._index were reloaded. |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
339 """ |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
340 if self._index: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
341 if self._pagedin < self.MAXPAGEDIN: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
342 return False |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
343 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
344 self._index.close() |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
345 self._data.close() |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
346 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
347 # TODO: use an opener/vfs to access these paths |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
348 with open(self.indexpath, PACKOPENMODE) as indexfp: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
349 # memory-map the file, size 0 means whole file |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
41365
diff
changeset
|
350 self._index = mmap.mmap( |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
41365
diff
changeset
|
351 indexfp.fileno(), 0, access=mmap.ACCESS_READ |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
41365
diff
changeset
|
352 ) |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
353 with open(self.packpath, PACKOPENMODE) as datafp: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
354 self._data = mmap.mmap(datafp.fileno(), 0, access=mmap.ACCESS_READ) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
355 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
356 self._pagedin = 0 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
357 return True |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
358 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
359 def getmissing(self, keys): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
360 raise NotImplementedError() |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
361 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
362 def markledger(self, ledger, options=None): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
363 raise NotImplementedError() |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
364 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
365 def cleanup(self, ledger): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
366 raise NotImplementedError() |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
367 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
368 def __iter__(self): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
369 raise NotImplementedError() |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
370 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
371 def iterentries(self): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
372 raise NotImplementedError() |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
373 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
41365
diff
changeset
|
374 |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
375 class mutablebasepack(versionmixin): |
40506
10c10da14c5d
remotefilelog: bump pack file formats to version 2
Augie Fackler <augie@google.com>
parents:
40495
diff
changeset
|
376 def __init__(self, ui, packdir, version=2): |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
377 self._checkversion(version) |
40506
10c10da14c5d
remotefilelog: bump pack file formats to version 2
Augie Fackler <augie@google.com>
parents:
40495
diff
changeset
|
378 # TODO(augie): make this configurable |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
379 self._compressor = b'GZ' |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
380 opener = vfsmod.vfs(packdir) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
381 opener.createmode = 0o444 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
382 self.opener = opener |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
383 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
384 self.entries = {} |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
385 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
386 shallowutil.mkstickygroupdir(ui, packdir) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
387 self.packfp, self.packpath = opener.mkstemp( |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
388 suffix=self.PACKSUFFIX + b'-tmp' |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
41365
diff
changeset
|
389 ) |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
390 self.idxfp, self.idxpath = opener.mkstemp( |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
391 suffix=self.INDEXSUFFIX + b'-tmp' |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
41365
diff
changeset
|
392 ) |
43506
9f70512ae2cf
cleanup: remove pointless r-prefixes on single-quoted strings
Augie Fackler <augie@google.com>
parents:
43089
diff
changeset
|
393 self.packfp = os.fdopen(self.packfp, 'wb+') |
9f70512ae2cf
cleanup: remove pointless r-prefixes on single-quoted strings
Augie Fackler <augie@google.com>
parents:
43089
diff
changeset
|
394 self.idxfp = os.fdopen(self.idxfp, 'wb+') |
44062
2d49482d0dd4
hgext: replace references to hashlib.sha1 with hashutil.sha1
Augie Fackler <augie@google.com>
parents:
43506
diff
changeset
|
395 self.sha = hashutil.sha1() |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
396 self._closed = False |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
397 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
398 # The opener provides no way of doing permission fixup on files created |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
399 # via mkstemp, so we must fix it ourselves. We can probably fix this |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
400 # upstream in vfs.mkstemp so we don't need to use the private method. |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
401 opener._fixfilemode(opener.join(self.packpath)) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
402 opener._fixfilemode(opener.join(self.idxpath)) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
403 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
404 # Write header |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
405 # TODO: make it extensible (ex: allow specifying compression algorithm, |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
406 # a flexible key/value header, delta algorithm, fanout size, etc) |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
407 versionbuf = struct.pack(b'!B', self.VERSION) # unsigned 1 byte int |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
408 self.writeraw(versionbuf) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
409 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
410 def __enter__(self): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
411 return self |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
412 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
413 def __exit__(self, exc_type, exc_value, traceback): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
414 if exc_type is None: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
415 self.close() |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
416 else: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
417 self.abort() |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
418 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
419 def abort(self): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
420 # Unclean exit |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
421 self._cleantemppacks() |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
422 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
423 def writeraw(self, data): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
424 self.packfp.write(data) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
425 self.sha.update(data) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
426 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
427 def close(self, ledger=None): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
428 if self._closed: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
429 return |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
430 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
431 try: |
46113
59fa3890d40a
node: import symbols explicitly
Joerg Sonnenberger <joerg@bec.de>
parents:
44452
diff
changeset
|
432 sha = hex(self.sha.digest()) |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
433 self.packfp.close() |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
434 self.writeindex() |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
435 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
436 if len(self.entries) == 0: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
437 # Empty pack |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
438 self._cleantemppacks() |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
439 self._closed = True |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
440 return None |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
441 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
442 self.opener.rename(self.packpath, sha + self.PACKSUFFIX) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
443 try: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
444 self.opener.rename(self.idxpath, sha + self.INDEXSUFFIX) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
445 except Exception as ex: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
446 try: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
447 self.opener.unlink(sha + self.PACKSUFFIX) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
448 except Exception: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
449 pass |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
450 # Throw exception 'ex' explicitly since a normal 'raise' would |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
451 # potentially throw an exception from the unlink cleanup. |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
452 raise ex |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
453 except Exception: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
454 # Clean up temp packs in all exception cases |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
455 self._cleantemppacks() |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
456 raise |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
457 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
458 self._closed = True |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
459 result = self.opener.join(sha) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
460 if ledger: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
461 ledger.addcreated(result) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
462 return result |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
463 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
464 def _cleantemppacks(self): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
465 try: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
466 self.opener.unlink(self.packpath) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
467 except Exception: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
468 pass |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
469 try: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
470 self.opener.unlink(self.idxpath) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
471 except Exception: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
472 pass |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
473 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
474 def writeindex(self): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
475 largefanout = len(self.entries) > SMALLFANOUTCUTOFF |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
476 if largefanout: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
477 params = indexparams(LARGEFANOUTPREFIX, self.VERSION) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
478 else: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
479 params = indexparams(SMALLFANOUTPREFIX, self.VERSION) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
480 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
481 fanouttable = [EMPTYFANOUT] * params.fanoutcount |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
482 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
483 # Precompute the location of each entry |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
484 locations = {} |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
485 count = 0 |
40613
9769e0f6ffe0
py3: don't use dict.iterkeys()
Pulkit Goyal <pulkit@yandex-team.ru>
parents:
40611
diff
changeset
|
486 for node in sorted(self.entries): |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
487 location = count * self.INDEXENTRYLENGTH |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
488 locations[node] = location |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
489 count += 1 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
490 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
491 # Must use [0] on the unpack result since it's always a tuple. |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
41365
diff
changeset
|
492 fanoutkey = struct.unpack( |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
41365
diff
changeset
|
493 params.fanoutstruct, node[: params.fanoutprefix] |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
41365
diff
changeset
|
494 )[0] |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
495 if fanouttable[fanoutkey] == EMPTYFANOUT: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
496 fanouttable[fanoutkey] = location |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
497 |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
498 rawfanouttable = b'' |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
499 last = 0 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
500 for offset in fanouttable: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
501 offset = offset if offset != EMPTYFANOUT else last |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
502 last = offset |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
503 rawfanouttable += struct.pack(b'!I', offset) |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
504 |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
505 rawentrieslength = struct.pack(b'!Q', len(self.entries)) |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
506 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
507 # The index offset is the it's location in the file. So after the 2 byte |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
508 # header and the fanouttable. |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
509 rawindex = self.createindex(locations, 2 + len(rawfanouttable)) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
510 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
511 self._writeheader(params) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
512 self.idxfp.write(rawfanouttable) |
40506
10c10da14c5d
remotefilelog: bump pack file formats to version 2
Augie Fackler <augie@google.com>
parents:
40495
diff
changeset
|
513 self.idxfp.write(rawentrieslength) |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
514 self.idxfp.write(rawindex) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
515 self.idxfp.close() |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
516 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
517 def createindex(self, nodelocations): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
518 raise NotImplementedError() |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
519 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
520 def _writeheader(self, indexparams): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
521 # Index header |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
522 # <version: 1 byte> |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
523 # <large fanout: 1 bit> # 1 means 2^16, 0 means 2^8 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
524 # <unused: 7 bit> # future use (compression, delta format, etc) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
525 config = 0 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
526 if indexparams.fanoutprefix == LARGEFANOUTPREFIX: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
527 config = 0b10000000 |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
528 self.idxfp.write(struct.pack(b'!BB', self.VERSION, config)) |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
529 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
41365
diff
changeset
|
530 |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
531 class indexparams(object): |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
41365
diff
changeset
|
532 __slots__ = ( |
43506
9f70512ae2cf
cleanup: remove pointless r-prefixes on single-quoted strings
Augie Fackler <augie@google.com>
parents:
43089
diff
changeset
|
533 'fanoutprefix', |
9f70512ae2cf
cleanup: remove pointless r-prefixes on single-quoted strings
Augie Fackler <augie@google.com>
parents:
43089
diff
changeset
|
534 'fanoutstruct', |
9f70512ae2cf
cleanup: remove pointless r-prefixes on single-quoted strings
Augie Fackler <augie@google.com>
parents:
43089
diff
changeset
|
535 'fanoutcount', |
9f70512ae2cf
cleanup: remove pointless r-prefixes on single-quoted strings
Augie Fackler <augie@google.com>
parents:
43089
diff
changeset
|
536 'fanoutsize', |
9f70512ae2cf
cleanup: remove pointless r-prefixes on single-quoted strings
Augie Fackler <augie@google.com>
parents:
43089
diff
changeset
|
537 'indexstart', |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
41365
diff
changeset
|
538 ) |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
539 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
540 def __init__(self, prefixsize, version): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
541 self.fanoutprefix = prefixsize |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
542 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
543 # The struct pack format for fanout table location (i.e. the format that |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
544 # converts the node prefix into an integer location in the fanout |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
545 # table). |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
546 if prefixsize == SMALLFANOUTPREFIX: |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
547 self.fanoutstruct = b'!B' |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
548 elif prefixsize == LARGEFANOUTPREFIX: |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
549 self.fanoutstruct = b'!H' |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
550 else: |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
551 raise ValueError(b"invalid fanout prefix size: %s" % prefixsize) |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
552 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
553 # The number of fanout table entries |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
41365
diff
changeset
|
554 self.fanoutcount = 2 ** (prefixsize * 8) |
40495
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
555 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
556 # The total bytes used by the fanout table |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
557 self.fanoutsize = self.fanoutcount * 4 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
558 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
559 self.indexstart = FANOUTSTART + self.fanoutsize |
40506
10c10da14c5d
remotefilelog: bump pack file formats to version 2
Augie Fackler <augie@google.com>
parents:
40495
diff
changeset
|
560 # Skip the index length |
10c10da14c5d
remotefilelog: bump pack file formats to version 2
Augie Fackler <augie@google.com>
parents:
40495
diff
changeset
|
561 self.indexstart += 8 |