Mercurial > hg
annotate mercurial/tags.py @ 28219:97fe88806f6f
check-code: allow old style class with special comments
The following chgserver change will use an old style class to comply with
SocketServer's code style. This patch made it possible to pass check-code.
author | Jun Wu <quark@fb.com> |
---|---|
date | Wed, 24 Feb 2016 18:42:14 +0000 |
parents | 8a256cee72c8 |
children | a9dd92c48a1c |
rev | line source |
---|---|
9149
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
1 # tags.py - read tag info from local repository |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
2 # |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
3 # Copyright 2009 Matt Mackall <mpm@selenic.com> |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
4 # Copyright 2009 Greg Ward <greg@gerg.ca> |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
5 # |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
6 # This software may be used and distributed according to the terms of the |
10263 | 7 # GNU General Public License version 2 or any later version. |
9149
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
8 |
9151
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
9 # Currently this module only deals with reading and caching tags. |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
10 # Eventually, it could take care of updating (adding/removing/moving) |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
11 # tags too. |
9149
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
12 |
25982
b2f3f185e458
tags: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25660
diff
changeset
|
13 from __future__ import absolute_import |
b2f3f185e458
tags: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25660
diff
changeset
|
14 |
b2f3f185e458
tags: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25660
diff
changeset
|
15 import array |
14038
0e6f622f31ca
tags: loosen IOError filtering when reading localtags
Idan Kamara <idankk86@gmail.com>
parents:
14020
diff
changeset
|
16 import errno |
21030
9ea132aee96c
tags: log events related to tags cache
Gregory Szorc <gregory.szorc@gmail.com>
parents:
19646
diff
changeset
|
17 import time |
9149
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
18 |
25982
b2f3f185e458
tags: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25660
diff
changeset
|
19 from .i18n import _ |
b2f3f185e458
tags: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25660
diff
changeset
|
20 from .node import ( |
b2f3f185e458
tags: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25660
diff
changeset
|
21 bin, |
b2f3f185e458
tags: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25660
diff
changeset
|
22 hex, |
b2f3f185e458
tags: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25660
diff
changeset
|
23 nullid, |
b2f3f185e458
tags: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25660
diff
changeset
|
24 short, |
b2f3f185e458
tags: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25660
diff
changeset
|
25 ) |
b2f3f185e458
tags: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25660
diff
changeset
|
26 from . import ( |
b2f3f185e458
tags: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25660
diff
changeset
|
27 encoding, |
b2f3f185e458
tags: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25660
diff
changeset
|
28 error, |
b2f3f185e458
tags: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25660
diff
changeset
|
29 util, |
b2f3f185e458
tags: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25660
diff
changeset
|
30 ) |
b2f3f185e458
tags: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25660
diff
changeset
|
31 |
b2f3f185e458
tags: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25660
diff
changeset
|
32 array = array.array |
b2f3f185e458
tags: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25660
diff
changeset
|
33 |
24735
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
34 # Tags computation can be expensive and caches exist to make it fast in |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
35 # the common case. |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
36 # |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
37 # The "hgtagsfnodes1" cache file caches the .hgtags filenode values for |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
38 # each revision in the repository. The file is effectively an array of |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
39 # fixed length records. Read the docs for "hgtagsfnodescache" for technical |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
40 # details. |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
41 # |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
42 # The .hgtags filenode cache grows in proportion to the length of the |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
43 # changelog. The file is truncated when the # changelog is stripped. |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
44 # |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
45 # The purpose of the filenode cache is to avoid the most expensive part |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
46 # of finding global tags, which is looking up the .hgtags filenode in the |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
47 # manifest for each head. This can take dozens or over 100ms for |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
48 # repositories with very large manifests. Multiplied by dozens or even |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
49 # hundreds of heads and there is a significant performance concern. |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
50 # |
24762
1062663808ce
tags: write a separate tags cache file for unfiltered repos
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24761
diff
changeset
|
51 # There also exist a separate cache file for each repository filter. |
1062663808ce
tags: write a separate tags cache file for unfiltered repos
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24761
diff
changeset
|
52 # These "tags-*" files store information about the history of tags. |
24445
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
53 # |
24762
1062663808ce
tags: write a separate tags cache file for unfiltered repos
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24761
diff
changeset
|
54 # The tags cache files consists of a cache validation line followed by |
1062663808ce
tags: write a separate tags cache file for unfiltered repos
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24761
diff
changeset
|
55 # a history of tags. |
24735
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
56 # |
24760
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
57 # The cache validation line has the format: |
24445
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
58 # |
24760
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
59 # <tiprev> <tipnode> [<filteredhash>] |
24445
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
60 # |
24760
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
61 # <tiprev> is an integer revision and <tipnode> is a 40 character hex |
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
62 # node for that changeset. These redundantly identify the repository |
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
63 # tip from the time the cache was written. In addition, <filteredhash>, |
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
64 # if present, is a 40 character hex hash of the contents of the filtered |
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
65 # revisions for this filter. If the set of filtered revs changes, the |
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
66 # hash will change and invalidate the cache. |
24445
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
67 # |
24760
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
68 # The history part of the tags cache consists of lines of the form: |
24445
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
69 # |
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
70 # <node> <tag> |
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
71 # |
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
72 # (This format is identical to that of .hgtags files.) |
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
73 # |
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
74 # <tag> is the tag name and <node> is the 40 character hex changeset |
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
75 # the tag is associated with. |
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
76 # |
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
77 # Tags are written sorted by tag name. |
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
78 # |
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
79 # Tags associated with multiple changesets have an entry for each changeset. |
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
80 # The most recent changeset (in terms of revlog ordering for the head |
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
81 # setting it) for each tag is last. |
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
82 |
11351
1cdc8b5e5729
tags: remove the old non-caching implementation of findglobaltags().
Greg Ward <greg-hg@gerg.ca>
parents:
11078
diff
changeset
|
83 def findglobaltags(ui, repo, alltags, tagtypes): |
24445
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
84 '''Find global tags in a repo. |
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
85 |
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
86 "alltags" maps tag name to (node, hist) 2-tuples. |
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
87 |
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
88 "tagtypes" maps tag name to tag type. Global tags always have the |
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
89 "global" tag type. |
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
90 |
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
91 The "alltags" and "tagtypes" dicts are updated in place. Empty dicts |
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
92 should be passed in. |
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
93 |
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
94 The tags cache is read and updated as a side-effect of calling. |
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
95 ''' |
9152
4017291c4c48
tags: support 'instant' tag retrieval (issue548)
Greg Ward <greg-hg@gerg.ca>
parents:
9151
diff
changeset
|
96 # This is so we can be lazy and assume alltags contains only global |
4017291c4c48
tags: support 'instant' tag retrieval (issue548)
Greg Ward <greg-hg@gerg.ca>
parents:
9151
diff
changeset
|
97 # tags when we pass it to _writetagcache(). |
4017291c4c48
tags: support 'instant' tag retrieval (issue548)
Greg Ward <greg-hg@gerg.ca>
parents:
9151
diff
changeset
|
98 assert len(alltags) == len(tagtypes) == 0, \ |
4017291c4c48
tags: support 'instant' tag retrieval (issue548)
Greg Ward <greg-hg@gerg.ca>
parents:
9151
diff
changeset
|
99 "findglobaltags() should be called first" |
4017291c4c48
tags: support 'instant' tag retrieval (issue548)
Greg Ward <greg-hg@gerg.ca>
parents:
9151
diff
changeset
|
100 |
24760
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
101 (heads, tagfnode, valid, cachetags, shouldwrite) = _readtagcache(ui, repo) |
9152
4017291c4c48
tags: support 'instant' tag retrieval (issue548)
Greg Ward <greg-hg@gerg.ca>
parents:
9151
diff
changeset
|
102 if cachetags is not None: |
4017291c4c48
tags: support 'instant' tag retrieval (issue548)
Greg Ward <greg-hg@gerg.ca>
parents:
9151
diff
changeset
|
103 assert not shouldwrite |
4017291c4c48
tags: support 'instant' tag retrieval (issue548)
Greg Ward <greg-hg@gerg.ca>
parents:
9151
diff
changeset
|
104 # XXX is this really 100% correct? are there oddball special |
4017291c4c48
tags: support 'instant' tag retrieval (issue548)
Greg Ward <greg-hg@gerg.ca>
parents:
9151
diff
changeset
|
105 # cases where a global tag should outrank a local tag but won't, |
4017291c4c48
tags: support 'instant' tag retrieval (issue548)
Greg Ward <greg-hg@gerg.ca>
parents:
9151
diff
changeset
|
106 # because cachetags does not contain rank info? |
4017291c4c48
tags: support 'instant' tag retrieval (issue548)
Greg Ward <greg-hg@gerg.ca>
parents:
9151
diff
changeset
|
107 _updatetags(cachetags, 'global', alltags, tagtypes) |
4017291c4c48
tags: support 'instant' tag retrieval (issue548)
Greg Ward <greg-hg@gerg.ca>
parents:
9151
diff
changeset
|
108 return |
9151
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
109 |
24445
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
110 seen = set() # set of fnode |
9151
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
111 fctx = None |
24445
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
112 for head in reversed(heads): # oldest to newest |
9151
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
113 assert head in repo.changelog.nodemap, \ |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
114 "tag cache returned bogus head %s" % short(head) |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
115 |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
116 fnode = tagfnode.get(head) |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
117 if fnode and fnode not in seen: |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
118 seen.add(fnode) |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
119 if not fctx: |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
120 fctx = repo.filectx('.hgtags', fileid=fnode) |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
121 else: |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
122 fctx = fctx.filectx(fnode) |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
123 |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
124 filetags = _readtags(ui, repo, fctx.data().splitlines(), fctx) |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
125 _updatetags(filetags, 'global', alltags, tagtypes) |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
126 |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
127 # and update the cache (if necessary) |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
128 if shouldwrite: |
24760
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
129 _writetagcache(ui, repo, valid, alltags) |
9151
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
130 |
9149
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
131 def readlocaltags(ui, repo, alltags, tagtypes): |
24445
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
132 '''Read local tags in repo. Update alltags and tagtypes.''' |
9149
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
133 try: |
23877
7cc77030c557
localrepo: remove all external users of localrepo.opener
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
23139
diff
changeset
|
134 data = repo.vfs.read("localtags") |
25660
328739ea70c3
global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25381
diff
changeset
|
135 except IOError as inst: |
14038
0e6f622f31ca
tags: loosen IOError filtering when reading localtags
Idan Kamara <idankk86@gmail.com>
parents:
14020
diff
changeset
|
136 if inst.errno != errno.ENOENT: |
0e6f622f31ca
tags: loosen IOError filtering when reading localtags
Idan Kamara <idankk86@gmail.com>
parents:
14020
diff
changeset
|
137 raise |
0e6f622f31ca
tags: loosen IOError filtering when reading localtags
Idan Kamara <idankk86@gmail.com>
parents:
14020
diff
changeset
|
138 return |
0e6f622f31ca
tags: loosen IOError filtering when reading localtags
Idan Kamara <idankk86@gmail.com>
parents:
14020
diff
changeset
|
139 |
0e6f622f31ca
tags: loosen IOError filtering when reading localtags
Idan Kamara <idankk86@gmail.com>
parents:
14020
diff
changeset
|
140 # localtags is in the local encoding; re-encode to UTF-8 on |
0e6f622f31ca
tags: loosen IOError filtering when reading localtags
Idan Kamara <idankk86@gmail.com>
parents:
14020
diff
changeset
|
141 # input for consistency with the rest of this module. |
0e6f622f31ca
tags: loosen IOError filtering when reading localtags
Idan Kamara <idankk86@gmail.com>
parents:
14020
diff
changeset
|
142 filetags = _readtags( |
0e6f622f31ca
tags: loosen IOError filtering when reading localtags
Idan Kamara <idankk86@gmail.com>
parents:
14020
diff
changeset
|
143 ui, repo, data.splitlines(), "localtags", |
0e6f622f31ca
tags: loosen IOError filtering when reading localtags
Idan Kamara <idankk86@gmail.com>
parents:
14020
diff
changeset
|
144 recode=encoding.fromlocal) |
21823
925d1bb9a971
repoview: do not crash when localtags refers to non existing revisions
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21030
diff
changeset
|
145 |
925d1bb9a971
repoview: do not crash when localtags refers to non existing revisions
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21030
diff
changeset
|
146 # remove tags pointing to invalid nodes |
925d1bb9a971
repoview: do not crash when localtags refers to non existing revisions
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21030
diff
changeset
|
147 cl = repo.changelog |
925d1bb9a971
repoview: do not crash when localtags refers to non existing revisions
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21030
diff
changeset
|
148 for t in filetags.keys(): |
925d1bb9a971
repoview: do not crash when localtags refers to non existing revisions
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21030
diff
changeset
|
149 try: |
925d1bb9a971
repoview: do not crash when localtags refers to non existing revisions
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21030
diff
changeset
|
150 cl.rev(filetags[t][0]) |
925d1bb9a971
repoview: do not crash when localtags refers to non existing revisions
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21030
diff
changeset
|
151 except (LookupError, ValueError): |
925d1bb9a971
repoview: do not crash when localtags refers to non existing revisions
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21030
diff
changeset
|
152 del filetags[t] |
925d1bb9a971
repoview: do not crash when localtags refers to non existing revisions
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21030
diff
changeset
|
153 |
14038
0e6f622f31ca
tags: loosen IOError filtering when reading localtags
Idan Kamara <idankk86@gmail.com>
parents:
14020
diff
changeset
|
154 _updatetags(filetags, "local", alltags, tagtypes) |
9149
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
155 |
21892
89cdebc31cda
tags: introduce _readtaghist function
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21832
diff
changeset
|
156 def _readtaghist(ui, repo, lines, fn, recode=None, calcnodelines=False): |
9149
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
157 '''Read tag definitions from a file (or any source of lines). |
24445
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
158 |
21892
89cdebc31cda
tags: introduce _readtaghist function
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21832
diff
changeset
|
159 This function returns two sortdicts with similar information: |
24445
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
160 |
23139
e53f6b72a0e4
spelling: fixes from proofreading of spell checker issues
Mads Kiilerich <madski@unity3d.com>
parents:
21892
diff
changeset
|
161 - the first dict, bintaghist, contains the tag information as expected by |
21892
89cdebc31cda
tags: introduce _readtaghist function
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21832
diff
changeset
|
162 the _readtags function, i.e. a mapping from tag name to (node, hist): |
89cdebc31cda
tags: introduce _readtaghist function
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21832
diff
changeset
|
163 - node is the node id from the last line read for that name, |
89cdebc31cda
tags: introduce _readtaghist function
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21832
diff
changeset
|
164 - hist is the list of node ids previously associated with it (in file |
24445
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
165 order). All node ids are binary, not hex. |
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
166 |
21892
89cdebc31cda
tags: introduce _readtaghist function
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21832
diff
changeset
|
167 - the second dict, hextaglines, is a mapping from tag name to a list of |
89cdebc31cda
tags: introduce _readtaghist function
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21832
diff
changeset
|
168 [hexnode, line number] pairs, ordered from the oldest to the newest node. |
24445
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
169 |
21892
89cdebc31cda
tags: introduce _readtaghist function
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21832
diff
changeset
|
170 When calcnodelines is False the hextaglines dict is not calculated (an |
89cdebc31cda
tags: introduce _readtaghist function
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21832
diff
changeset
|
171 empty dict is returned). This is done to improve this function's |
89cdebc31cda
tags: introduce _readtaghist function
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21832
diff
changeset
|
172 performance in cases where the line numbers are not needed. |
89cdebc31cda
tags: introduce _readtaghist function
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21832
diff
changeset
|
173 ''' |
9149
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
174 |
21892
89cdebc31cda
tags: introduce _readtaghist function
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21832
diff
changeset
|
175 bintaghist = util.sortdict() |
89cdebc31cda
tags: introduce _readtaghist function
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21832
diff
changeset
|
176 hextaglines = util.sortdict() |
9149
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
177 count = 0 |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
178 |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
179 def warn(msg): |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
180 ui.warn(_("%s, line %s: %s\n") % (fn, count, msg)) |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
181 |
21892
89cdebc31cda
tags: introduce _readtaghist function
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21832
diff
changeset
|
182 for nline, line in enumerate(lines): |
9149
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
183 count += 1 |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
184 if not line: |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
185 continue |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
186 try: |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
187 (nodehex, name) = line.split(" ", 1) |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
188 except ValueError: |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
189 warn(_("cannot parse entry")) |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
190 continue |
9152
4017291c4c48
tags: support 'instant' tag retrieval (issue548)
Greg Ward <greg-hg@gerg.ca>
parents:
9151
diff
changeset
|
191 name = name.strip() |
4017291c4c48
tags: support 'instant' tag retrieval (issue548)
Greg Ward <greg-hg@gerg.ca>
parents:
9151
diff
changeset
|
192 if recode: |
4017291c4c48
tags: support 'instant' tag retrieval (issue548)
Greg Ward <greg-hg@gerg.ca>
parents:
9151
diff
changeset
|
193 name = recode(name) |
9149
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
194 try: |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
195 nodebin = bin(nodehex) |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
196 except TypeError: |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
197 warn(_("node '%s' is not well formed") % nodehex) |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
198 continue |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
199 |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
200 # update filetags |
21892
89cdebc31cda
tags: introduce _readtaghist function
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21832
diff
changeset
|
201 if calcnodelines: |
89cdebc31cda
tags: introduce _readtaghist function
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21832
diff
changeset
|
202 # map tag name to a list of line numbers |
89cdebc31cda
tags: introduce _readtaghist function
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21832
diff
changeset
|
203 if name not in hextaglines: |
89cdebc31cda
tags: introduce _readtaghist function
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21832
diff
changeset
|
204 hextaglines[name] = [] |
89cdebc31cda
tags: introduce _readtaghist function
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21832
diff
changeset
|
205 hextaglines[name].append([nodehex, nline]) |
89cdebc31cda
tags: introduce _readtaghist function
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21832
diff
changeset
|
206 continue |
89cdebc31cda
tags: introduce _readtaghist function
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21832
diff
changeset
|
207 # map tag name to (node, hist) |
89cdebc31cda
tags: introduce _readtaghist function
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21832
diff
changeset
|
208 if name not in bintaghist: |
89cdebc31cda
tags: introduce _readtaghist function
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21832
diff
changeset
|
209 bintaghist[name] = [] |
89cdebc31cda
tags: introduce _readtaghist function
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21832
diff
changeset
|
210 bintaghist[name].append(nodebin) |
89cdebc31cda
tags: introduce _readtaghist function
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21832
diff
changeset
|
211 return bintaghist, hextaglines |
89cdebc31cda
tags: introduce _readtaghist function
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21832
diff
changeset
|
212 |
89cdebc31cda
tags: introduce _readtaghist function
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21832
diff
changeset
|
213 def _readtags(ui, repo, lines, fn, recode=None, calcnodelines=False): |
89cdebc31cda
tags: introduce _readtaghist function
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21832
diff
changeset
|
214 '''Read tag definitions from a file (or any source of lines). |
24445
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
215 |
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
216 Returns a mapping from tag name to (node, hist). |
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
217 |
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
218 "node" is the node id from the last line read for that name. "hist" |
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
219 is the list of node ids previously associated with it (in file order). |
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
220 All node ids are binary, not hex. |
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
221 ''' |
21892
89cdebc31cda
tags: introduce _readtaghist function
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21832
diff
changeset
|
222 filetags, nodelines = _readtaghist(ui, repo, lines, fn, recode=recode, |
89cdebc31cda
tags: introduce _readtaghist function
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21832
diff
changeset
|
223 calcnodelines=calcnodelines) |
26945
8a256cee72c8
tags: create new sortdict for performance reasons
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25982
diff
changeset
|
224 # util.sortdict().__setitem__ is much slower at replacing then inserting |
8a256cee72c8
tags: create new sortdict for performance reasons
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25982
diff
changeset
|
225 # new entries. The difference can matter if there are thousands of tags. |
8a256cee72c8
tags: create new sortdict for performance reasons
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25982
diff
changeset
|
226 # Create a new sortdict to avoid the performance penalty. |
8a256cee72c8
tags: create new sortdict for performance reasons
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25982
diff
changeset
|
227 newtags = util.sortdict() |
21892
89cdebc31cda
tags: introduce _readtaghist function
Angel Ezquerra <angel.ezquerra@gmail.com>
parents:
21832
diff
changeset
|
228 for tag, taghist in filetags.items(): |
26945
8a256cee72c8
tags: create new sortdict for performance reasons
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25982
diff
changeset
|
229 newtags[tag] = (taghist[-1], taghist[:-1]) |
8a256cee72c8
tags: create new sortdict for performance reasons
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25982
diff
changeset
|
230 return newtags |
9149
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
231 |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
232 def _updatetags(filetags, tagtype, alltags, tagtypes): |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
233 '''Incorporate the tag info read from one file into the two |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
234 dictionaries, alltags and tagtypes, that contain all tag |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
235 info (global across all heads plus local).''' |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
236 |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
237 for name, nodehist in filetags.iteritems(): |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
238 if name not in alltags: |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
239 alltags[name] = nodehist |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
240 tagtypes[name] = tagtype |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
241 continue |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
242 |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
243 # we prefer alltags[name] if: |
17424
e7cfe3587ea4
fix trivial spelling errors
Mads Kiilerich <mads@kiilerich.com>
parents:
17256
diff
changeset
|
244 # it supersedes us OR |
e7cfe3587ea4
fix trivial spelling errors
Mads Kiilerich <mads@kiilerich.com>
parents:
17256
diff
changeset
|
245 # mutual supersedes and it has a higher rank |
9149
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
246 # otherwise we win because we're tip-most |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
247 anode, ahist = nodehist |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
248 bnode, bhist = alltags[name] |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
249 if (bnode != anode and anode in bhist and |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
250 (bnode not in ahist or len(bhist) > len(ahist))): |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
251 anode = bnode |
19108
cb95716da5fe
tags: update tag type only if tag node is updated (issue3911)
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
17424
diff
changeset
|
252 else: |
cb95716da5fe
tags: update tag type only if tag node is updated (issue3911)
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
17424
diff
changeset
|
253 tagtypes[name] = tagtype |
9149
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
254 ahist.extend([n for n in bhist if n not in ahist]) |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
255 alltags[name] = anode, ahist |
abb7d4d43a5f
Factor tags module out of localrepo (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
diff
changeset
|
256 |
24737
b061a2049662
tags: have a different cache file per filter level
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24735
diff
changeset
|
257 def _filename(repo): |
b061a2049662
tags: have a different cache file per filter level
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24735
diff
changeset
|
258 """name of a tagcache file for a given repo or repoview""" |
24762
1062663808ce
tags: write a separate tags cache file for unfiltered repos
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24761
diff
changeset
|
259 filename = 'cache/tags2' |
24737
b061a2049662
tags: have a different cache file per filter level
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24735
diff
changeset
|
260 if repo.filtername: |
b061a2049662
tags: have a different cache file per filter level
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24735
diff
changeset
|
261 filename = '%s-%s' % (filename, repo.filtername) |
b061a2049662
tags: have a different cache file per filter level
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24735
diff
changeset
|
262 return filename |
b061a2049662
tags: have a different cache file per filter level
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24735
diff
changeset
|
263 |
24445
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
264 def _readtagcache(ui, repo): |
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
265 '''Read the tag cache. |
9151
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
266 |
24760
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
267 Returns a tuple (heads, fnodes, validinfo, cachetags, shouldwrite). |
24445
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
268 |
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
269 If the cache is completely up-to-date, "cachetags" is a dict of the |
24760
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
270 form returned by _readtags() and "heads", "fnodes", and "validinfo" are |
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
271 None and "shouldwrite" is False. |
9151
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
272 |
24445
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
273 If the cache is not up to date, "cachetags" is None. "heads" is a list |
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
274 of all heads currently in the repository, ordered from tip to oldest. |
24760
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
275 "validinfo" is a tuple describing cache validation info. This is used |
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
276 when writing the tags cache. "fnodes" is a mapping from head to .hgtags |
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
277 filenode. "shouldwrite" is True. |
24445
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
278 |
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
279 If the cache is not up to date, the caller is responsible for reading tag |
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
280 info from each returned head. (See findglobaltags().) |
c71edbafe603
tags: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24143
diff
changeset
|
281 ''' |
25982
b2f3f185e458
tags: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25660
diff
changeset
|
282 from . import scmutil # avoid cycle |
9151
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
283 |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
284 try: |
24737
b061a2049662
tags: have a different cache file per filter level
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24735
diff
changeset
|
285 cachefile = repo.vfs(_filename(repo), 'r') |
11066
26abd91d9e84
static-http: mimic more closely localrepo (issue2164: allow clone -r )
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
10263
diff
changeset
|
286 # force reading the file for static-http |
26abd91d9e84
static-http: mimic more closely localrepo (issue2164: allow clone -r )
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
10263
diff
changeset
|
287 cachelines = iter(cachefile) |
9151
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
288 except IOError: |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
289 cachefile = None |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
290 |
24760
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
291 cacherev = None |
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
292 cachenode = None |
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
293 cachehash = None |
9151
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
294 if cachefile: |
12758
2d754eae430c
tags: do not fail if tags.cache is corrupted (issue2444)
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
11352
diff
changeset
|
295 try: |
24760
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
296 validline = cachelines.next() |
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
297 validline = validline.split() |
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
298 cacherev = int(validline[0]) |
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
299 cachenode = bin(validline[1]) |
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
300 if len(validline) > 2: |
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
301 cachehash = bin(validline[2]) |
14020
98f79a5c3086
tags: catch more corruption during cache parsing (issue2779)
Matt Mackall <mpm@selenic.com>
parents:
13341
diff
changeset
|
302 except Exception: |
24759
d082c6ef9ec3
tags: don't read .hgtags fnodes from tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24737
diff
changeset
|
303 # corruption of the cache, just recompute it. |
d082c6ef9ec3
tags: don't read .hgtags fnodes from tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24737
diff
changeset
|
304 pass |
9151
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
305 |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
306 tipnode = repo.changelog.tip() |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
307 tiprev = len(repo.changelog) - 1 |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
308 |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
309 # Case 1 (common): tip is the same, so nothing has changed. |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
310 # (Unchanged tip trivially means no changesets have been added. |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
311 # But, thanks to localrepository.destroyed(), it also means none |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
312 # have been destroyed by strip or rollback.) |
24760
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
313 if (cacherev == tiprev |
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
314 and cachenode == tipnode |
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
315 and cachehash == scmutil.filteredhash(repo, tiprev)): |
11066
26abd91d9e84
static-http: mimic more closely localrepo (issue2164: allow clone -r )
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
10263
diff
changeset
|
316 tags = _readtags(ui, repo, cachelines, cachefile.name) |
9152
4017291c4c48
tags: support 'instant' tag retrieval (issue548)
Greg Ward <greg-hg@gerg.ca>
parents:
9151
diff
changeset
|
317 cachefile.close() |
24760
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
318 return (None, None, None, tags, False) |
9152
4017291c4c48
tags: support 'instant' tag retrieval (issue548)
Greg Ward <greg-hg@gerg.ca>
parents:
9151
diff
changeset
|
319 if cachefile: |
4017291c4c48
tags: support 'instant' tag retrieval (issue548)
Greg Ward <greg-hg@gerg.ca>
parents:
9151
diff
changeset
|
320 cachefile.close() # ignore rest of file |
9312
c5f0825c1dbb
kill trailing whitespace
Dirkjan Ochtman <dirkjan@ochtman.nl>
parents:
9152
diff
changeset
|
321 |
24760
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
322 valid = (tiprev, tipnode, scmutil.filteredhash(repo, tiprev)) |
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
323 |
9151
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
324 repoheads = repo.heads() |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
325 # Case 2 (uncommon): empty repo; get out quickly and don't bother |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
326 # writing an empty cache. |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
327 if repoheads == [nullid]: |
24760
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
328 return ([], {}, valid, {}, False) |
9151
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
329 |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
330 # Case 3 (uncommon): cache file missing or empty. |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
331 |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
332 # Case 4 (uncommon): tip rev decreased. This should only happen |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
333 # when we're called from localrepository.destroyed(). Refresh the |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
334 # cache so future invocations will not see disappeared heads in the |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
335 # cache. |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
336 |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
337 # Case 5 (common): tip has changed, so we've added/replaced heads. |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
338 |
11352
b19067ee4507
tags: remove inactive debugging code.
Greg Ward <greg-hg@gerg.ca>
parents:
11351
diff
changeset
|
339 # As it happens, the code to handle cases 3, 4, 5 is the same. |
9151
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
340 |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
341 # N.B. in case 4 (nodes destroyed), "new head" really means "newly |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
342 # exposed". |
16730
dd4ce44ff53c
tags: short-circuit if no tags have ever been committed
Bryan O'Sullivan <bryano@fb.com>
parents:
16589
diff
changeset
|
343 if not len(repo.file('.hgtags')): |
dd4ce44ff53c
tags: short-circuit if no tags have ever been committed
Bryan O'Sullivan <bryano@fb.com>
parents:
16589
diff
changeset
|
344 # No tags have ever been committed, so we can avoid a |
dd4ce44ff53c
tags: short-circuit if no tags have ever been committed
Bryan O'Sullivan <bryano@fb.com>
parents:
16589
diff
changeset
|
345 # potentially expensive search. |
24761
61a6d83280d3
tags: return empty list of heads for no .hgtags case
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24760
diff
changeset
|
346 return ([], {}, valid, None, True) |
16730
dd4ce44ff53c
tags: short-circuit if no tags have ever been committed
Bryan O'Sullivan <bryano@fb.com>
parents:
16589
diff
changeset
|
347 |
21030
9ea132aee96c
tags: log events related to tags cache
Gregory Szorc <gregory.szorc@gmail.com>
parents:
19646
diff
changeset
|
348 starttime = time.time() |
9ea132aee96c
tags: log events related to tags cache
Gregory Szorc <gregory.szorc@gmail.com>
parents:
19646
diff
changeset
|
349 |
9151
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
350 # Now we have to lookup the .hgtags filenode for every new head. |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
351 # This is the most expensive part of finding tags, so performance |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
352 # depends primarily on the size of newheads. Worst case: no cache |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
353 # file, so newheads == repoheads. |
24735
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
354 fnodescache = hgtagsfnodescache(repo.unfiltered()) |
24759
d082c6ef9ec3
tags: don't read .hgtags fnodes from tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24737
diff
changeset
|
355 cachefnode = {} |
d082c6ef9ec3
tags: don't read .hgtags fnodes from tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24737
diff
changeset
|
356 for head in reversed(repoheads): |
24735
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
357 fnode = fnodescache.getfnode(head) |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
358 if fnode != nullid: |
9151
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
359 cachefnode[head] = fnode |
24735
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
360 |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
361 fnodescache.write() |
9151
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
362 |
21030
9ea132aee96c
tags: log events related to tags cache
Gregory Szorc <gregory.szorc@gmail.com>
parents:
19646
diff
changeset
|
363 duration = time.time() - starttime |
9ea132aee96c
tags: log events related to tags cache
Gregory Szorc <gregory.szorc@gmail.com>
parents:
19646
diff
changeset
|
364 ui.log('tagscache', |
24735
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
365 '%d/%d cache hits/lookups in %0.4f ' |
21030
9ea132aee96c
tags: log events related to tags cache
Gregory Szorc <gregory.szorc@gmail.com>
parents:
19646
diff
changeset
|
366 'seconds\n', |
24735
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
367 fnodescache.hitcount, fnodescache.lookupcount, duration) |
21030
9ea132aee96c
tags: log events related to tags cache
Gregory Szorc <gregory.szorc@gmail.com>
parents:
19646
diff
changeset
|
368 |
9151
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
369 # Caller has to iterate over all heads, but can use the filenodes in |
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
370 # cachefnode to get to each .hgtags revision quickly. |
24760
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
371 return (repoheads, cachefnode, valid, None, True) |
9151
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
372 |
24760
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
373 def _writetagcache(ui, repo, valid, cachetags): |
24763
a698e088ad29
tags: explicitly log which tags cache file is being written
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24762
diff
changeset
|
374 filename = _filename(repo) |
9366
9ff178e7b627
tags: don't crash if unable to write tag cache
Greg Ward <greg-hg@gerg.ca>
parents:
9312
diff
changeset
|
375 try: |
24763
a698e088ad29
tags: explicitly log which tags cache file is being written
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24762
diff
changeset
|
376 cachefile = repo.vfs(filename, 'w', atomictemp=True) |
9366
9ff178e7b627
tags: don't crash if unable to write tag cache
Greg Ward <greg-hg@gerg.ca>
parents:
9312
diff
changeset
|
377 except (OSError, IOError): |
9ff178e7b627
tags: don't crash if unable to write tag cache
Greg Ward <greg-hg@gerg.ca>
parents:
9312
diff
changeset
|
378 return |
9151
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
379 |
24763
a698e088ad29
tags: explicitly log which tags cache file is being written
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24762
diff
changeset
|
380 ui.log('tagscache', 'writing .hg/%s with %d tags\n', |
a698e088ad29
tags: explicitly log which tags cache file is being written
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24762
diff
changeset
|
381 filename, len(cachetags)) |
21030
9ea132aee96c
tags: log events related to tags cache
Gregory Szorc <gregory.szorc@gmail.com>
parents:
19646
diff
changeset
|
382 |
24760
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
383 if valid[2]: |
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
384 cachefile.write('%d %s %s\n' % (valid[0], hex(valid[1]), hex(valid[2]))) |
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
385 else: |
410f3856196f
tags: change format of tags cache files
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24759
diff
changeset
|
386 cachefile.write('%d %s\n' % (valid[0], hex(valid[1]))) |
9151
f528d1a93491
tags: implement persistent tag caching (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
9149
diff
changeset
|
387 |
9152
4017291c4c48
tags: support 'instant' tag retrieval (issue548)
Greg Ward <greg-hg@gerg.ca>
parents:
9151
diff
changeset
|
388 # Tag names in the cache are in UTF-8 -- which is the whole reason |
4017291c4c48
tags: support 'instant' tag retrieval (issue548)
Greg Ward <greg-hg@gerg.ca>
parents:
9151
diff
changeset
|
389 # we keep them in UTF-8 throughout this module. If we converted |
4017291c4c48
tags: support 'instant' tag retrieval (issue548)
Greg Ward <greg-hg@gerg.ca>
parents:
9151
diff
changeset
|
390 # them local encoding on input, we would lose info writing them to |
4017291c4c48
tags: support 'instant' tag retrieval (issue548)
Greg Ward <greg-hg@gerg.ca>
parents:
9151
diff
changeset
|
391 # the cache. |
24143
7b09dbbbd502
tags: write tags cache deterministically
Gregory Szorc <gregory.szorc@gmail.com>
parents:
23877
diff
changeset
|
392 for (name, (node, hist)) in sorted(cachetags.iteritems()): |
19646
335a558f81dc
tags: write tag overwriting history also into tag cache file (issue3911)
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
19108
diff
changeset
|
393 for n in hist: |
335a558f81dc
tags: write tag overwriting history also into tag cache file (issue3911)
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
19108
diff
changeset
|
394 cachefile.write("%s %s\n" % (hex(n), name)) |
9152
4017291c4c48
tags: support 'instant' tag retrieval (issue548)
Greg Ward <greg-hg@gerg.ca>
parents:
9151
diff
changeset
|
395 cachefile.write("%s %s\n" % (hex(node), name)) |
4017291c4c48
tags: support 'instant' tag retrieval (issue548)
Greg Ward <greg-hg@gerg.ca>
parents:
9151
diff
changeset
|
396 |
14662
2b30124c7d8a
tags: don't allow environment errors to be raised from _writetagscache
Steve Borho <steve@borho.org>
parents:
14168
diff
changeset
|
397 try: |
15057
774da7121fc9
atomictempfile: make close() consistent with other file-like objects.
Greg Ward <greg@gerg.ca>
parents:
14662
diff
changeset
|
398 cachefile.close() |
14662
2b30124c7d8a
tags: don't allow environment errors to be raised from _writetagscache
Steve Borho <steve@borho.org>
parents:
14168
diff
changeset
|
399 except (OSError, IOError): |
2b30124c7d8a
tags: don't allow environment errors to be raised from _writetagscache
Steve Borho <steve@borho.org>
parents:
14168
diff
changeset
|
400 pass |
24735
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
401 |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
402 _fnodescachefile = 'cache/hgtagsfnodes1' |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
403 _fnodesrecsize = 4 + 20 # changeset fragment + filenode |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
404 _fnodesmissingrec = '\xff' * 24 |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
405 |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
406 class hgtagsfnodescache(object): |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
407 """Persistent cache mapping revisions to .hgtags filenodes. |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
408 |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
409 The cache is an array of records. Each item in the array corresponds to |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
410 a changelog revision. Values in the array contain the first 4 bytes of |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
411 the node hash and the 20 bytes .hgtags filenode for that revision. |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
412 |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
413 The first 4 bytes are present as a form of verification. Repository |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
414 stripping and rewriting may change the node at a numeric revision in the |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
415 changelog. The changeset fragment serves as a verifier to detect |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
416 rewriting. This logic is shared with the rev branch cache (see |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
417 branchmap.py). |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
418 |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
419 The instance holds in memory the full cache content but entries are |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
420 only parsed on read. |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
421 |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
422 Instances behave like lists. ``c[i]`` works where i is a rev or |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
423 changeset node. Missing indexes are populated automatically on access. |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
424 """ |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
425 def __init__(self, repo): |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
426 assert repo.filtername is None |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
427 |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
428 self._repo = repo |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
429 |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
430 # Only for reporting purposes. |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
431 self.lookupcount = 0 |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
432 self.hitcount = 0 |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
433 |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
434 self._raw = array('c') |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
435 |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
436 data = repo.vfs.tryread(_fnodescachefile) |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
437 self._raw.fromstring(data) |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
438 |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
439 # The end state of self._raw is an array that is of the exact length |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
440 # required to hold a record for every revision in the repository. |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
441 # We truncate or extend the array as necessary. self._dirtyoffset is |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
442 # defined to be the start offset at which we need to write the output |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
443 # file. This offset is also adjusted when new entries are calculated |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
444 # for array members. |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
445 cllen = len(repo.changelog) |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
446 wantedlen = cllen * _fnodesrecsize |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
447 rawlen = len(self._raw) |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
448 |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
449 self._dirtyoffset = None |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
450 |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
451 if rawlen < wantedlen: |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
452 self._dirtyoffset = rawlen |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
453 self._raw.extend('\xff' * (wantedlen - rawlen)) |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
454 elif rawlen > wantedlen: |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
455 # There's no easy way to truncate array instances. This seems |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
456 # slightly less evil than copying a potentially large array slice. |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
457 for i in range(rawlen - wantedlen): |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
458 self._raw.pop() |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
459 self._dirtyoffset = len(self._raw) |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
460 |
25380
eaa456c5e699
tags: support reading tags cache without populating
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25087
diff
changeset
|
461 def getfnode(self, node, computemissing=True): |
24735
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
462 """Obtain the filenode of the .hgtags file at a specified revision. |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
463 |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
464 If the value is in the cache, the entry will be validated and returned. |
25380
eaa456c5e699
tags: support reading tags cache without populating
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25087
diff
changeset
|
465 Otherwise, the filenode will be computed and returned unless |
eaa456c5e699
tags: support reading tags cache without populating
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25087
diff
changeset
|
466 "computemissing" is False, in which case None will be returned without |
eaa456c5e699
tags: support reading tags cache without populating
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25087
diff
changeset
|
467 any potentially expensive computation being performed. |
24735
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
468 |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
469 If an .hgtags does not exist at the specified revision, nullid is |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
470 returned. |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
471 """ |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
472 ctx = self._repo[node] |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
473 rev = ctx.rev() |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
474 |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
475 self.lookupcount += 1 |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
476 |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
477 offset = rev * _fnodesrecsize |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
478 record = self._raw[offset:offset + _fnodesrecsize].tostring() |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
479 properprefix = node[0:4] |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
480 |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
481 # Validate and return existing entry. |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
482 if record != _fnodesmissingrec: |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
483 fileprefix = record[0:4] |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
484 |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
485 if fileprefix == properprefix: |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
486 self.hitcount += 1 |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
487 return record[4:] |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
488 |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
489 # Fall through. |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
490 |
25380
eaa456c5e699
tags: support reading tags cache without populating
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25087
diff
changeset
|
491 # If we get here, the entry is either missing or invalid. |
eaa456c5e699
tags: support reading tags cache without populating
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25087
diff
changeset
|
492 |
eaa456c5e699
tags: support reading tags cache without populating
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25087
diff
changeset
|
493 if not computemissing: |
eaa456c5e699
tags: support reading tags cache without populating
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25087
diff
changeset
|
494 return None |
eaa456c5e699
tags: support reading tags cache without populating
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25087
diff
changeset
|
495 |
eaa456c5e699
tags: support reading tags cache without populating
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25087
diff
changeset
|
496 # Populate missing entry. |
24735
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
497 try: |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
498 fnode = ctx.filenode('.hgtags') |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
499 except error.LookupError: |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
500 # No .hgtags file on this revision. |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
501 fnode = nullid |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
502 |
25381
47edeff19139
tags: support setting hgtags fnodes cache entries
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25380
diff
changeset
|
503 self._writeentry(offset, properprefix, fnode) |
47edeff19139
tags: support setting hgtags fnodes cache entries
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25380
diff
changeset
|
504 return fnode |
47edeff19139
tags: support setting hgtags fnodes cache entries
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25380
diff
changeset
|
505 |
47edeff19139
tags: support setting hgtags fnodes cache entries
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25380
diff
changeset
|
506 def setfnode(self, node, fnode): |
47edeff19139
tags: support setting hgtags fnodes cache entries
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25380
diff
changeset
|
507 """Set the .hgtags filenode for a given changeset.""" |
47edeff19139
tags: support setting hgtags fnodes cache entries
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25380
diff
changeset
|
508 assert len(fnode) == 20 |
47edeff19139
tags: support setting hgtags fnodes cache entries
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25380
diff
changeset
|
509 ctx = self._repo[node] |
47edeff19139
tags: support setting hgtags fnodes cache entries
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25380
diff
changeset
|
510 |
47edeff19139
tags: support setting hgtags fnodes cache entries
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25380
diff
changeset
|
511 # Do a lookup first to avoid writing if nothing has changed. |
47edeff19139
tags: support setting hgtags fnodes cache entries
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25380
diff
changeset
|
512 if self.getfnode(ctx.node(), computemissing=False) == fnode: |
47edeff19139
tags: support setting hgtags fnodes cache entries
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25380
diff
changeset
|
513 return |
47edeff19139
tags: support setting hgtags fnodes cache entries
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25380
diff
changeset
|
514 |
47edeff19139
tags: support setting hgtags fnodes cache entries
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25380
diff
changeset
|
515 self._writeentry(ctx.rev() * _fnodesrecsize, node[0:4], fnode) |
47edeff19139
tags: support setting hgtags fnodes cache entries
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25380
diff
changeset
|
516 |
47edeff19139
tags: support setting hgtags fnodes cache entries
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25380
diff
changeset
|
517 def _writeentry(self, offset, prefix, fnode): |
24735
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
518 # Slices on array instances only accept other array. |
25381
47edeff19139
tags: support setting hgtags fnodes cache entries
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25380
diff
changeset
|
519 entry = array('c', prefix + fnode) |
24735
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
520 self._raw[offset:offset + _fnodesrecsize] = entry |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
521 # self._dirtyoffset could be None. |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
522 self._dirtyoffset = min(self._dirtyoffset, offset) or 0 |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
523 |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
524 def write(self): |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
525 """Perform all necessary writes to cache file. |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
526 |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
527 This may no-op if no writes are needed or if a write lock could |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
528 not be obtained. |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
529 """ |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
530 if self._dirtyoffset is None: |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
531 return |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
532 |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
533 data = self._raw[self._dirtyoffset:] |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
534 if not data: |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
535 return |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
536 |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
537 repo = self._repo |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
538 |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
539 try: |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
540 lock = repo.wlock(wait=False) |
24806
61aea11fb83d
tags: do not abort if failed to write lock file to save cache
Yuya Nishihara <yuya@tcha.org>
parents:
24763
diff
changeset
|
541 except error.LockError: |
24735
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
542 repo.ui.log('tagscache', |
24806
61aea11fb83d
tags: do not abort if failed to write lock file to save cache
Yuya Nishihara <yuya@tcha.org>
parents:
24763
diff
changeset
|
543 'not writing .hg/%s because lock cannot be acquired\n' % |
24735
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
544 (_fnodescachefile)) |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
545 return |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
546 |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
547 try: |
25087
559f24e3957d
tags: use try/except/finally
Matt Mackall <mpm@selenic.com>
parents:
24806
diff
changeset
|
548 f = repo.vfs.open(_fnodescachefile, 'ab') |
24735
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
549 try: |
25087
559f24e3957d
tags: use try/except/finally
Matt Mackall <mpm@selenic.com>
parents:
24806
diff
changeset
|
550 # if the file has been truncated |
559f24e3957d
tags: use try/except/finally
Matt Mackall <mpm@selenic.com>
parents:
24806
diff
changeset
|
551 actualoffset = f.tell() |
559f24e3957d
tags: use try/except/finally
Matt Mackall <mpm@selenic.com>
parents:
24806
diff
changeset
|
552 if actualoffset < self._dirtyoffset: |
559f24e3957d
tags: use try/except/finally
Matt Mackall <mpm@selenic.com>
parents:
24806
diff
changeset
|
553 self._dirtyoffset = actualoffset |
559f24e3957d
tags: use try/except/finally
Matt Mackall <mpm@selenic.com>
parents:
24806
diff
changeset
|
554 data = self._raw[self._dirtyoffset:] |
559f24e3957d
tags: use try/except/finally
Matt Mackall <mpm@selenic.com>
parents:
24806
diff
changeset
|
555 f.seek(self._dirtyoffset) |
559f24e3957d
tags: use try/except/finally
Matt Mackall <mpm@selenic.com>
parents:
24806
diff
changeset
|
556 f.truncate() |
24735
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
557 repo.ui.log('tagscache', |
25087
559f24e3957d
tags: use try/except/finally
Matt Mackall <mpm@selenic.com>
parents:
24806
diff
changeset
|
558 'writing %d bytes to %s\n' % ( |
559f24e3957d
tags: use try/except/finally
Matt Mackall <mpm@selenic.com>
parents:
24806
diff
changeset
|
559 len(data), _fnodescachefile)) |
559f24e3957d
tags: use try/except/finally
Matt Mackall <mpm@selenic.com>
parents:
24806
diff
changeset
|
560 f.write(data) |
559f24e3957d
tags: use try/except/finally
Matt Mackall <mpm@selenic.com>
parents:
24806
diff
changeset
|
561 self._dirtyoffset = None |
559f24e3957d
tags: use try/except/finally
Matt Mackall <mpm@selenic.com>
parents:
24806
diff
changeset
|
562 finally: |
559f24e3957d
tags: use try/except/finally
Matt Mackall <mpm@selenic.com>
parents:
24806
diff
changeset
|
563 f.close() |
25660
328739ea70c3
global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25381
diff
changeset
|
564 except (IOError, OSError) as inst: |
25087
559f24e3957d
tags: use try/except/finally
Matt Mackall <mpm@selenic.com>
parents:
24806
diff
changeset
|
565 repo.ui.log('tagscache', |
559f24e3957d
tags: use try/except/finally
Matt Mackall <mpm@selenic.com>
parents:
24806
diff
changeset
|
566 "couldn't write %s: %s\n" % ( |
559f24e3957d
tags: use try/except/finally
Matt Mackall <mpm@selenic.com>
parents:
24806
diff
changeset
|
567 _fnodescachefile, inst)) |
24735
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
568 finally: |
07200e3332a1
tags: extract .hgtags filenodes cache to a standalone file
Gregory Szorc <gregory.szorc@gmail.com>
parents:
24532
diff
changeset
|
569 lock.release() |