Mercurial > hg
annotate mercurial/streamclone.py @ 5357:c6adf2be6069
util: add default argument to strdate
author | Bryan O'Sullivan <bos@serpentine.com> |
---|---|
date | Tue, 02 Oct 2007 13:46:59 -0700 |
parents | 97b734fb9c6f |
children | 5105b119edd2 |
rev | line source |
---|---|
2612
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
1 # streamclone.py - streaming clone server support for mercurial |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
2 # |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
3 # Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com> |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
4 # |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
5 # This software may be used and distributed according to the terms |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
6 # of the GNU General Public License, incorporated herein by reference. |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
7 |
3891 | 8 from i18n import _ |
3877
abaee83ce0a6
Replace demandload with new demandimport
Matt Mackall <mpm@selenic.com>
parents:
3856
diff
changeset
|
9 import os, stat, util, lock |
2612
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
10 |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
11 # if server supports streaming clone, it advertises "stream" |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
12 # capability with value that is version+flags of repo it is serving. |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
13 # client only streams if it can read that repo format. |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
14 |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
15 def walkrepo(root): |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
16 '''iterate over metadata files in repository. |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
17 walk in natural (sorted) order. |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
18 yields 2-tuples: name of .d or .i file, size of file.''' |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
19 |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
20 strip_count = len(root) + len(os.sep) |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
21 def walk(path, recurse): |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
22 ents = os.listdir(path) |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
23 ents.sort() |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
24 for e in ents: |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
25 pe = os.path.join(path, e) |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
26 st = os.lstat(pe) |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
27 if stat.S_ISDIR(st.st_mode): |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
28 if recurse: |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
29 for x in walk(pe, True): |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
30 yield x |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
31 else: |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
32 if not stat.S_ISREG(st.st_mode) or len(e) < 2: |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
33 continue |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
34 sfx = e[-2:] |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
35 if sfx in ('.d', '.i'): |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
36 yield pe[strip_count:], st.st_size |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
37 # write file data first |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
38 for x in walk(os.path.join(root, 'data'), True): |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
39 yield x |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
40 # write manifest before changelog |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
41 meta = list(walk(root, False)) |
2623
d1cbfe9e13cd
fix problem with uncompressed clone and python 2.3.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2622
diff
changeset
|
42 meta.sort() |
d1cbfe9e13cd
fix problem with uncompressed clone and python 2.3.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2622
diff
changeset
|
43 meta.reverse() |
2612
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
44 for x in meta: |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
45 yield x |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
46 |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
47 # stream file format is simple. |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
48 # |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
49 # server writes out line that says how many files, how many total |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
50 # bytes. separator is ascii space, byte counts are strings. |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
51 # |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
52 # then for each file: |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
53 # |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
54 # server writes out line that says file name, how many bytes in |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
55 # file. separator is ascii nul, byte count is string. |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
56 # |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
57 # server writes out raw file data. |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
58 |
4834
439e2f2fde42
Fix inconsistency for the stream_out capability in hgweb
Edouard Gomez <ed.gomez@free.fr>
parents:
4134
diff
changeset
|
59 def stream_out(repo, fileobj, untrusted=False): |
2612
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
60 '''stream out all metadata files in repository. |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
61 writes to file-like object, must support write() and optional flush().''' |
2621
5a5852a417b1
clone: disable stream support on server side by default.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2612
diff
changeset
|
62 |
4834
439e2f2fde42
Fix inconsistency for the stream_out capability in hgweb
Edouard Gomez <ed.gomez@free.fr>
parents:
4134
diff
changeset
|
63 if not repo.ui.configbool('server', 'uncompressed', untrusted=untrusted): |
2621
5a5852a417b1
clone: disable stream support on server side by default.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2612
diff
changeset
|
64 fileobj.write('1\n') |
5a5852a417b1
clone: disable stream support on server side by default.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2612
diff
changeset
|
65 return |
5a5852a417b1
clone: disable stream support on server side by default.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
2612
diff
changeset
|
66 |
2612
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
67 # get consistent snapshot of repo. lock during scan so lock not |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
68 # needed while we stream, and commits can happen. |
4915
97b734fb9c6f
Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents:
4834
diff
changeset
|
69 lock = None |
3687
d5dd0a2a44bc
Handle locking exceptions if streaming clone can't lock the repo. (Issue324)
Thomas Arendsen Hein <thomas@intevation.de>
parents:
2623
diff
changeset
|
70 try: |
4915
97b734fb9c6f
Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents:
4834
diff
changeset
|
71 try: |
97b734fb9c6f
Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents:
4834
diff
changeset
|
72 repolock = repo.lock() |
97b734fb9c6f
Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents:
4834
diff
changeset
|
73 except (lock.LockHeld, lock.LockUnavailable), inst: |
97b734fb9c6f
Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents:
4834
diff
changeset
|
74 repo.ui.warn('locking the repository failed: %s\n' % (inst,)) |
97b734fb9c6f
Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents:
4834
diff
changeset
|
75 fileobj.write('2\n') |
97b734fb9c6f
Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents:
4834
diff
changeset
|
76 return |
3687
d5dd0a2a44bc
Handle locking exceptions if streaming clone can't lock the repo. (Issue324)
Thomas Arendsen Hein <thomas@intevation.de>
parents:
2623
diff
changeset
|
77 |
4915
97b734fb9c6f
Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents:
4834
diff
changeset
|
78 fileobj.write('0\n') |
97b734fb9c6f
Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents:
4834
diff
changeset
|
79 repo.ui.debug('scanning\n') |
97b734fb9c6f
Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents:
4834
diff
changeset
|
80 entries = [] |
97b734fb9c6f
Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents:
4834
diff
changeset
|
81 total_bytes = 0 |
97b734fb9c6f
Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents:
4834
diff
changeset
|
82 for name, size in walkrepo(repo.spath): |
97b734fb9c6f
Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents:
4834
diff
changeset
|
83 name = repo.decodefn(util.pconvert(name)) |
97b734fb9c6f
Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents:
4834
diff
changeset
|
84 entries.append((name, size)) |
97b734fb9c6f
Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents:
4834
diff
changeset
|
85 total_bytes += size |
97b734fb9c6f
Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents:
4834
diff
changeset
|
86 finally: |
97b734fb9c6f
Use try/finally pattern to cleanup locks and transactions
Matt Mackall <mpm@selenic.com>
parents:
4834
diff
changeset
|
87 del repolock |
2612
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
88 |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
89 repo.ui.debug('%d files, %d bytes to transfer\n' % |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
90 (len(entries), total_bytes)) |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
91 fileobj.write('%d %d\n' % (len(entries), total_bytes)) |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
92 for name, size in entries: |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
93 repo.ui.debug('sending %s (%d bytes)\n' % (name, size)) |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
94 fileobj.write('%s\0%d\n' % (name, size)) |
3791
8643b9f90b51
introduce localrepo.spath for the store path, sopener fixes
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3721
diff
changeset
|
95 for chunk in util.filechunkiter(repo.sopener(name), limit=size): |
2612
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
96 fileobj.write(chunk) |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
97 flush = getattr(fileobj, 'flush', None) |
ffb895f16925
add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff
changeset
|
98 if flush: flush() |