Mercurial > hg
annotate mercurial/statichttprepo.py @ 39763:5ccd791344f3
localrepo: pass root manifest into manifestlog.__init__
Today, localrepository has a method that can be overloaded which
returns an instance of the root manifest storage object. When a
manifestlog is created, it calls this private method and stores
the root manifest object on it.
This "hook" on localrepository isn't part of the documented interface.
It isn't compatible with our desire to make repo storage determined
before the repo object is constructed.
This commit changes manifestlog.__init__ to accept the root
storage object instead of calling into the repo to construct it.
By doing things this way, the repo instance is responsible for
constructing the manifest storage object directly.
This does mean that other derived repo types need to overload
manifestlog(). But they should have been doing this already,
as manifestlog() is typically decorated in a storage-specific way.
e.g. localrepository.manifestlog() is decorated as
@storecache('00manifest.i'). And this assumes that a 00manifest.i
file exists in the store vfs. This condition may not hold for
repository types using non-revlog storage. So it is important
for special repo types to override manifestlog() to remove this
file association.
The code changed in perf is wrong because it isn't compatible with
older Mercurial versions. But I'm pretty sure the code was broken
on older versions before this commit. It only affects `hg perftags`.
I don't care enough to fix that at this time.
.. api::
``manifest.manifestlog.__init__()`` now receives the root manifest
storage instance instead of calling into a private method on
the repo object to obtain it.
Differential Revision: https://phab.mercurial-scm.org/D4641
author | Gregory Szorc <gregory.szorc@gmail.com> |
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date | Tue, 18 Sep 2018 15:15:24 -0700 |
parents | f44187605315 |
children | e4e881572382 |
rev | line source |
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1101 | 1 # statichttprepo.py - simple http repository class for mercurial |
2 # | |
3 # This provides read-only repo access to repositories exported via static http | |
4 # | |
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5 # Copyright 2005-2007 Matt Mackall <mpm@selenic.com> |
1101 | 6 # |
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7 # This software may be used and distributed according to the terms of the |
10263 | 8 # GNU General Public License version 2 or any later version. |
1101 | 9 |
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10 from __future__ import absolute_import |
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11 |
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12 import errno |
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13 |
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14 from .i18n import _ |
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15 from . import ( |
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16 changelog, |
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17 error, |
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18 localrepo, |
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19 manifest, |
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20 namespaces, |
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21 pathutil, |
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22 url, |
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23 util, |
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24 vfs as vfsmod, |
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25 ) |
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26 |
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27 urlerr = util.urlerr |
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28 urlreq = util.urlreq |
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29 |
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30 class httprangereader(object): |
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31 def __init__(self, url, opener): |
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32 # we assume opener has HTTPRangeHandler |
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33 self.url = url |
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34 self.pos = 0 |
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35 self.opener = opener |
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36 self.name = url |
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37 |
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38 def __enter__(self): |
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39 return self |
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40 |
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41 def __exit__(self, exc_type, exc_value, traceback): |
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42 self.close() |
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43 |
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44 def seek(self, pos): |
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45 self.pos = pos |
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46 def read(self, bytes=None): |
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47 req = urlreq.request(self.url) |
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48 end = '' |
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49 if bytes: |
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50 end = self.pos + bytes - 1 |
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51 if self.pos or end: |
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52 req.add_header('Range', 'bytes=%d-%s' % (self.pos, end)) |
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53 |
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54 try: |
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55 f = self.opener.open(req) |
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56 data = f.read() |
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57 code = f.code |
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58 except urlerr.httperror as inst: |
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59 num = inst.code == 404 and errno.ENOENT or None |
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60 raise IOError(num, inst) |
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61 except urlerr.urlerror as inst: |
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62 raise IOError(None, inst.reason[1]) |
1101 | 63 |
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64 if code == 200: |
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65 # HTTPRangeHandler does nothing if remote does not support |
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66 # Range headers and returns the full entity. Let's slice it. |
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67 if bytes: |
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68 data = data[self.pos:self.pos + bytes] |
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69 else: |
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70 data = data[self.pos:] |
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71 elif bytes: |
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72 data = data[:bytes] |
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73 self.pos += len(data) |
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74 return data |
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75 def readlines(self): |
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76 return self.read().splitlines(True) |
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77 def __iter__(self): |
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78 return iter(self.readlines()) |
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79 def close(self): |
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80 pass |
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81 |
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82 # _RangeError and _HTTPRangeHandler were originally in byterange.py, |
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83 # which was itself extracted from urlgrabber. See the last version of |
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84 # byterange.py from history if you need more information. |
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85 class _RangeError(IOError): |
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86 """Error raised when an unsatisfiable range is requested.""" |
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87 |
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88 class _HTTPRangeHandler(urlreq.basehandler): |
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89 """Handler that enables HTTP Range headers. |
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90 |
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91 This was extremely simple. The Range header is a HTTP feature to |
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92 begin with so all this class does is tell urllib2 that the |
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93 "206 Partial Content" response from the HTTP server is what we |
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94 expected. |
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95 """ |
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96 |
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97 def http_error_206(self, req, fp, code, msg, hdrs): |
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98 # 206 Partial Content Response |
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99 r = urlreq.addinfourl(fp, hdrs, req.get_full_url()) |
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100 r.code = code |
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101 r.msg = msg |
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102 return r |
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103 |
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104 def http_error_416(self, req, fp, code, msg, hdrs): |
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105 # HTTP's Range Not Satisfiable error |
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106 raise _RangeError('Requested Range Not Satisfiable') |
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107 |
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108 def build_opener(ui, authinfo): |
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109 # urllib cannot handle URLs with embedded user or passwd |
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110 urlopener = url.opener(ui, authinfo) |
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parents:
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111 urlopener.add_handler(_HTTPRangeHandler()) |
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112 |
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113 class statichttpvfs(vfsmod.abstractvfs): |
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114 def __init__(self, base): |
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115 self.base = base |
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116 |
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Mads Kiilerich <madski@unity3d.com>
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117 def __call__(self, path, mode='r', *args, **kw): |
13533
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statichttprepo: abort if opener mode is 'r+' or 'rb+'
Adrian Buehlmann <adrian@cadifra.com>
parents:
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118 if mode not in ('r', 'rb'): |
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static-http: mimic more closely localrepo (issue2164: allow clone -r )
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
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119 raise IOError('Permission denied') |
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pycompat: switch to util.urlreq/util.urlerr for py3 compat
timeless <timeless@mozdev.org>
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120 f = "/".join((self.base, urlreq.quote(path))) |
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121 return httprangereader(f, urlopener) |
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122 |
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123 def join(self, path): |
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124 if path: |
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125 return pathutil.join(self.base, path) |
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126 else: |
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127 return self.base |
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128 |
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129 return statichttpvfs |
1101 | 130 |
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131 class statichttppeer(localrepo.localpeer): |
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132 def local(self): |
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133 return None |
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134 def canpush(self): |
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135 return False |
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136 |
1101 | 137 class statichttprepository(localrepo.localrepository): |
19778
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138 supported = localrepo.localrepository._basesupported |
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139 |
1101 | 140 def __init__(self, ui, path): |
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141 self._url = path |
1101 | 142 self.ui = ui |
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143 |
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144 self.root = path |
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145 u = util.url(path.rstrip('/') + "/.hg") |
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146 self.path, authinfo = u.authinfo() |
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147 |
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148 vfsclass = build_opener(ui, authinfo) |
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149 self.vfs = vfsclass(self.path) |
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cachevfs: add a vfs dedicated to cache
Boris Feld <boris.feld@octobus.net>
parents:
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150 self.cachevfs = vfsclass(self.vfs.join('cache')) |
15922
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phases: mechanism to allow extension to alter initial computation of phase
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
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151 self._phasedefaults = [] |
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make static-http work with empty repos (issue965)
Dirkjan Ochtman <dirkjan@ochtman.nl>
parents:
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152 |
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namespaces: remove weakref; always pass in repo
Ryan McElroy <rmcelroy@fb.com>
parents:
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153 self.names = namespaces.namespaces() |
32730
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localrepo: move filtername to __init__
Gregory Szorc <gregory.szorc@gmail.com>
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154 self.filtername = None |
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namespaces: add bookmarks to the names data structure
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155 |
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156 try: |
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157 requirements = set(self.vfs.read(b'requires').splitlines()) |
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Gregory Szorc <gregory.szorc@gmail.com>
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158 except IOError as inst: |
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Fix Debian bug #494889 (fetching from static-http://... broken)
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159 if inst.errno != errno.ENOENT: |
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160 raise |
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161 requirements = set() |
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162 |
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163 # check if it is a non-empty old-style repository |
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164 try: |
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165 fp = self.vfs("00changelog.i") |
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explicitly close files
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166 fp.read(1) |
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167 fp.close() |
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168 except IOError as inst: |
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169 if inst.errno != errno.ENOENT: |
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170 raise |
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171 # we do not care about empty old-style repositories here |
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Dirkjan Ochtman <dirkjan@ochtman.nl>
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172 msg = _("'%s' does not appear to be an hg repository") % path |
7637 | 173 raise error.RepoError(msg) |
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174 |
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175 supportedrequirements = localrepo.gathersupportedrequirements(ui) |
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176 localrepo.ensurerequirementsrecognized(requirements, |
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177 supportedrequirements) |
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178 localrepo.ensurerequirementscompatible(ui, requirements) |
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179 |
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180 # setup store |
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181 self.store = localrepo.makestore(requirements, self.path, vfsclass) |
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parents:
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182 self.spath = self.store.path |
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parents:
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183 self.svfs = self.store.opener |
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184 self.sjoin = self.store.join |
16115
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scmutil: update cached copy when filecached attribute is assigned (issue3263)
Idan Kamara <idankk86@gmail.com>
parents:
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185 self._filecache = {} |
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186 self.requirements = requirements |
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187 |
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188 rootmanifest = manifest.manifestrevlog(self.svfs) |
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189 self.manifestlog = manifest.manifestlog(self.svfs, self, rootmanifest) |
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190 self.changelog = changelog.changelog(self.svfs) |
9146
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localrepo: rename in-memory tag cache instance attributes (issue548).
Greg Ward <greg-hg@gerg.ca>
parents:
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191 self._tags = None |
1101 | 192 self.nodetagscache = None |
18189
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branchmap: enable caching for filtered version too
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parents:
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193 self._branchcaches = {} |
24373
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revbranchcache: move out of branchmap onto localrepo
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parents:
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194 self._revbranchcache = None |
1598
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195 self.encodepats = None |
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196 self.decodepats = None |
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197 self._transref = None |
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198 |
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199 def _restrictcapabilities(self, caps): |
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200 caps = super(statichttprepository, self)._restrictcapabilities(caps) |
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201 return caps.difference(["pushkey"]) |
1101 | 202 |
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parents:
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203 def url(self): |
7211 | 204 return self._url |
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205 |
1101 | 206 def local(self): |
207 return False | |
2740
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208 |
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209 def peer(self): |
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210 return statichttppeer(self) |
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211 |
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statichttprepo: implement wlock() (issue5613)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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212 def wlock(self, wait=True): |
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213 raise error.LockUnavailable(0, _('lock not available'), 'lock', |
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214 _('cannot lock static-http repository')) |
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215 |
7005
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Martin Geisler <mg@daimi.au.dk>
parents:
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216 def lock(self, wait=True): |
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217 raise error.Abort(_('cannot lock static-http repository')) |
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218 |
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219 def _writecaches(self): |
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220 pass # statichttprepository are read only |
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221 |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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changeset
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222 def instance(ui, path, create, intents=None, createopts=None): |
2740
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parents:
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223 if create: |
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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224 raise error.Abort(_('cannot create new static-http repository')) |
4853
bf10a03a6b24
Removed deprecated hg:// and old-http:// protocols (issue406)
Thomas Arendsen Hein <thomas@intevation.de>
parents:
4635
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225 return statichttprepository(ui, path[7:]) |