Mercurial > hg
annotate mercurial/store.py @ 39620:b220851999b5
py3: use '%d' for integers instead of '%s'
Differential Revision: https://phab.mercurial-scm.org/D4593
author | Pulkit Goyal <pulkit@yandex-team.ru> |
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date | Sat, 15 Sep 2018 00:24:05 +0300 |
parents | 576eef1ab43d |
children | f44187605315 |
rev | line source |
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1 # store.py - repository store handling for Mercurial |
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2 # |
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3 # Copyright 2008 Matt Mackall <mpm@selenic.com> |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
10263 | 6 # GNU General Public License version 2 or any later version. |
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7 |
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8 from __future__ import absolute_import |
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9 |
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10 import errno |
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11 import hashlib |
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12 import os |
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13 import stat |
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14 |
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15 from .i18n import _ |
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16 from . import ( |
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17 error, |
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18 node, |
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19 policy, |
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20 pycompat, |
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21 util, |
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22 vfs as vfsmod, |
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23 ) |
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24 |
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25 parsers = policy.importmod(r'parsers') |
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26 |
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27 # This avoids a collision between a file named foo and a dir named |
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28 # foo.i or foo.d |
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29 def _encodedir(path): |
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30 ''' |
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31 >>> _encodedir(b'data/foo.i') |
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32 'data/foo.i' |
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33 >>> _encodedir(b'data/foo.i/bla.i') |
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34 'data/foo.i.hg/bla.i' |
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35 >>> _encodedir(b'data/foo.i.hg/bla.i') |
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36 'data/foo.i.hg.hg/bla.i' |
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37 >>> _encodedir(b'data/foo.i\\ndata/foo.i/bla.i\\ndata/foo.i.hg/bla.i\\n') |
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38 'data/foo.i\\ndata/foo.i.hg/bla.i\\ndata/foo.i.hg.hg/bla.i\\n' |
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39 ''' |
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40 return (path |
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41 .replace(".hg/", ".hg.hg/") |
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42 .replace(".i/", ".i.hg/") |
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43 .replace(".d/", ".d.hg/")) |
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44 |
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45 encodedir = getattr(parsers, 'encodedir', _encodedir) |
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46 |
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47 def decodedir(path): |
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48 ''' |
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49 >>> decodedir(b'data/foo.i') |
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50 'data/foo.i' |
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51 >>> decodedir(b'data/foo.i.hg/bla.i') |
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52 'data/foo.i/bla.i' |
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53 >>> decodedir(b'data/foo.i.hg.hg/bla.i') |
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54 'data/foo.i.hg/bla.i' |
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55 ''' |
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56 if ".hg/" not in path: |
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57 return path |
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58 return (path |
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59 .replace(".d.hg/", ".d/") |
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60 .replace(".i.hg/", ".i/") |
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61 .replace(".hg.hg/", ".hg/")) |
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62 |
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63 def _reserved(): |
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64 ''' characters that are problematic for filesystems |
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65 |
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66 * ascii escapes (0..31) |
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67 * ascii hi (126..255) |
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68 * windows specials |
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69 |
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70 these characters will be escaped by encodefunctions |
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71 ''' |
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72 winreserved = [ord(x) for x in u'\\:*?"<>|'] |
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73 for x in range(32): |
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74 yield x |
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75 for x in range(126, 256): |
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76 yield x |
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77 for x in winreserved: |
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78 yield x |
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79 |
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80 def _buildencodefun(): |
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81 ''' |
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82 >>> enc, dec = _buildencodefun() |
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83 |
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84 >>> enc(b'nothing/special.txt') |
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85 'nothing/special.txt' |
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86 >>> dec(b'nothing/special.txt') |
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87 'nothing/special.txt' |
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88 |
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89 >>> enc(b'HELLO') |
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90 '_h_e_l_l_o' |
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91 >>> dec(b'_h_e_l_l_o') |
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92 'HELLO' |
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93 |
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94 >>> enc(b'hello:world?') |
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95 'hello~3aworld~3f' |
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96 >>> dec(b'hello~3aworld~3f') |
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97 'hello:world?' |
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98 |
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99 >>> enc(b'the\\x07quick\\xADshot') |
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100 'the~07quick~adshot' |
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101 >>> dec(b'the~07quick~adshot') |
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102 'the\\x07quick\\xadshot' |
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103 ''' |
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104 e = '_' |
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105 xchr = pycompat.bytechr |
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106 asciistr = list(map(xchr, range(127))) |
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107 capitals = list(range(ord("A"), ord("Z") + 1)) |
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108 |
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109 cmap = dict((x, x) for x in asciistr) |
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110 for x in _reserved(): |
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111 cmap[xchr(x)] = "~%02x" % x |
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112 for x in capitals + [ord(e)]: |
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113 cmap[xchr(x)] = e + xchr(x).lower() |
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114 |
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115 dmap = {} |
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116 for k, v in cmap.iteritems(): |
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117 dmap[v] = k |
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118 def decode(s): |
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119 i = 0 |
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120 while i < len(s): |
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121 for l in pycompat.xrange(1, 4): |
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122 try: |
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123 yield dmap[s[i:i + l]] |
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124 i += l |
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125 break |
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126 except KeyError: |
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127 pass |
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128 else: |
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129 raise KeyError |
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130 return (lambda s: ''.join([cmap[s[c:c + 1]] |
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131 for c in pycompat.xrange(len(s))]), |
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132 lambda s: ''.join(list(decode(s)))) |
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133 |
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134 _encodefname, _decodefname = _buildencodefun() |
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135 |
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136 def encodefilename(s): |
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137 ''' |
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138 >>> encodefilename(b'foo.i/bar.d/bla.hg/hi:world?/HELLO') |
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139 'foo.i.hg/bar.d.hg/bla.hg.hg/hi~3aworld~3f/_h_e_l_l_o' |
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140 ''' |
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141 return _encodefname(encodedir(s)) |
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142 |
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143 def decodefilename(s): |
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144 ''' |
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145 >>> decodefilename(b'foo.i.hg/bar.d.hg/bla.hg.hg/hi~3aworld~3f/_h_e_l_l_o') |
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146 'foo.i/bar.d/bla.hg/hi:world?/HELLO' |
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147 ''' |
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148 return decodedir(_decodefname(s)) |
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149 |
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150 def _buildlowerencodefun(): |
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151 ''' |
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152 >>> f = _buildlowerencodefun() |
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153 >>> f(b'nothing/special.txt') |
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154 'nothing/special.txt' |
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155 >>> f(b'HELLO') |
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156 'hello' |
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157 >>> f(b'hello:world?') |
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158 'hello~3aworld~3f' |
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159 >>> f(b'the\\x07quick\\xADshot') |
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160 'the~07quick~adshot' |
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161 ''' |
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162 xchr = pycompat.bytechr |
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163 cmap = dict([(xchr(x), xchr(x)) for x in pycompat.xrange(127)]) |
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164 for x in _reserved(): |
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165 cmap[xchr(x)] = "~%02x" % x |
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166 for x in range(ord("A"), ord("Z") + 1): |
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167 cmap[xchr(x)] = xchr(x).lower() |
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168 def lowerencode(s): |
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169 return "".join([cmap[c] for c in pycompat.iterbytestr(s)]) |
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170 return lowerencode |
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171 |
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172 lowerencode = getattr(parsers, 'lowerencode', None) or _buildlowerencodefun() |
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173 |
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174 # Windows reserved names: con, prn, aux, nul, com1..com9, lpt1..lpt9 |
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175 _winres3 = ('aux', 'con', 'prn', 'nul') # length 3 |
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176 _winres4 = ('com', 'lpt') # length 4 (with trailing 1..9) |
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177 def _auxencode(path, dotencode): |
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178 ''' |
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179 Encodes filenames containing names reserved by Windows or which end in |
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180 period or space. Does not touch other single reserved characters c. |
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181 Specifically, c in '\\:*?"<>|' or ord(c) <= 31 are *not* encoded here. |
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182 Additionally encodes space or period at the beginning, if dotencode is |
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183 True. Parameter path is assumed to be all lowercase. |
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184 A segment only needs encoding if a reserved name appears as a |
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185 basename (e.g. "aux", "aux.foo"). A directory or file named "foo.aux" |
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186 doesn't need encoding. |
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187 |
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188 >>> s = b'.foo/aux.txt/txt.aux/con/prn/nul/foo.' |
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189 >>> _auxencode(s.split(b'/'), True) |
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190 ['~2efoo', 'au~78.txt', 'txt.aux', 'co~6e', 'pr~6e', 'nu~6c', 'foo~2e'] |
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191 >>> s = b'.com1com2/lpt9.lpt4.lpt1/conprn/com0/lpt0/foo.' |
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192 >>> _auxencode(s.split(b'/'), False) |
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193 ['.com1com2', 'lp~749.lpt4.lpt1', 'conprn', 'com0', 'lpt0', 'foo~2e'] |
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194 >>> _auxencode([b'foo. '], True) |
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195 ['foo.~20'] |
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196 >>> _auxencode([b' .foo'], True) |
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197 ['~20.foo'] |
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198 ''' |
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199 for i, n in enumerate(path): |
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200 if not n: |
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201 continue |
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202 if dotencode and n[0] in '. ': |
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203 n = "~%02x" % ord(n[0:1]) + n[1:] |
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204 path[i] = n |
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205 else: |
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206 l = n.find('.') |
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207 if l == -1: |
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208 l = len(n) |
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209 if ((l == 3 and n[:3] in _winres3) or |
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210 (l == 4 and n[3:4] <= '9' and n[3:4] >= '1' |
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211 and n[:3] in _winres4)): |
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212 # encode third letter ('aux' -> 'au~78') |
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213 ec = "~%02x" % ord(n[2:3]) |
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214 n = n[0:2] + ec + n[3:] |
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215 path[i] = n |
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216 if n[-1] in '. ': |
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217 # encode last period or space ('foo...' -> 'foo..~2e') |
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218 path[i] = n[:-1] + "~%02x" % ord(n[-1:]) |
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219 return path |
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220 |
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221 _maxstorepathlen = 120 |
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222 _dirprefixlen = 8 |
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223 _maxshortdirslen = 8 * (_dirprefixlen + 1) - 4 |
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224 |
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225 def _hashencode(path, dotencode): |
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226 digest = node.hex(hashlib.sha1(path).digest()) |
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227 le = lowerencode(path[5:]).split('/') # skips prefix 'data/' or 'meta/' |
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228 parts = _auxencode(le, dotencode) |
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229 basename = parts[-1] |
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230 _root, ext = os.path.splitext(basename) |
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231 sdirs = [] |
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232 sdirslen = 0 |
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233 for p in parts[:-1]: |
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234 d = p[:_dirprefixlen] |
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235 if d[-1] in '. ': |
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236 # Windows can't access dirs ending in period or space |
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237 d = d[:-1] + '_' |
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238 if sdirslen == 0: |
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239 t = len(d) |
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240 else: |
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241 t = sdirslen + 1 + len(d) |
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242 if t > _maxshortdirslen: |
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243 break |
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244 sdirs.append(d) |
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245 sdirslen = t |
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246 dirs = '/'.join(sdirs) |
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247 if len(dirs) > 0: |
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248 dirs += '/' |
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249 res = 'dh/' + dirs + digest + ext |
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250 spaceleft = _maxstorepathlen - len(res) |
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251 if spaceleft > 0: |
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252 filler = basename[:spaceleft] |
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253 res = 'dh/' + dirs + filler + digest + ext |
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254 return res |
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255 |
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256 def _hybridencode(path, dotencode): |
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257 '''encodes path with a length limit |
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258 |
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259 Encodes all paths that begin with 'data/', according to the following. |
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260 |
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261 Default encoding (reversible): |
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262 |
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263 Encodes all uppercase letters 'X' as '_x'. All reserved or illegal |
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264 characters are encoded as '~xx', where xx is the two digit hex code |
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265 of the character (see encodefilename). |
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266 Relevant path components consisting of Windows reserved filenames are |
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267 masked by encoding the third character ('aux' -> 'au~78', see _auxencode). |
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268 |
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269 Hashed encoding (not reversible): |
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270 |
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271 If the default-encoded path is longer than _maxstorepathlen, a |
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272 non-reversible hybrid hashing of the path is done instead. |
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273 This encoding uses up to _dirprefixlen characters of all directory |
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274 levels of the lowerencoded path, but not more levels than can fit into |
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275 _maxshortdirslen. |
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276 Then follows the filler followed by the sha digest of the full path. |
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277 The filler is the beginning of the basename of the lowerencoded path |
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278 (the basename is everything after the last path separator). The filler |
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279 is as long as possible, filling in characters from the basename until |
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280 the encoded path has _maxstorepathlen characters (or all chars of the |
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281 basename have been taken). |
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282 The extension (e.g. '.i' or '.d') is preserved. |
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283 |
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284 The string 'data/' at the beginning is replaced with 'dh/', if the hashed |
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285 encoding was used. |
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286 ''' |
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287 path = encodedir(path) |
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288 ef = _encodefname(path).split('/') |
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289 res = '/'.join(_auxencode(ef, dotencode)) |
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290 if len(res) > _maxstorepathlen: |
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291 res = _hashencode(path, dotencode) |
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292 return res |
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293 |
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294 def _pathencode(path): |
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295 de = encodedir(path) |
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296 if len(path) > _maxstorepathlen: |
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297 return _hashencode(de, True) |
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298 ef = _encodefname(de).split('/') |
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299 res = '/'.join(_auxencode(ef, True)) |
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300 if len(res) > _maxstorepathlen: |
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301 return _hashencode(de, True) |
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302 return res |
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303 |
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304 _pathencode = getattr(parsers, 'pathencode', _pathencode) |
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305 |
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306 def _plainhybridencode(f): |
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307 return _hybridencode(f, False) |
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308 |
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309 def _calcmode(vfs): |
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310 try: |
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311 # files in .hg/ will be created using this mode |
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312 mode = vfs.stat().st_mode |
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313 # avoid some useless chmods |
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314 if (0o777 & ~util.umask) == (0o777 & mode): |
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315 mode = None |
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316 except OSError: |
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317 mode = None |
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318 return mode |
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319 |
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320 _data = ('narrowspec data meta 00manifest.d 00manifest.i' |
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321 ' 00changelog.d 00changelog.i phaseroots obsstore') |
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322 |
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323 def isrevlog(f, kind, st): |
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324 return kind == stat.S_IFREG and f[-2:] in ('.i', '.d') |
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325 |
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326 class basicstore(object): |
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327 '''base class for local repository stores''' |
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328 def __init__(self, path, vfstype): |
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329 vfs = vfstype(path) |
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330 self.path = vfs.base |
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331 self.createmode = _calcmode(vfs) |
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332 vfs.createmode = self.createmode |
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333 self.rawvfs = vfs |
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334 self.vfs = vfsmod.filtervfs(vfs, encodedir) |
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335 self.opener = self.vfs |
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336 |
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337 def join(self, f): |
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338 return self.path + '/' + encodedir(f) |
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339 |
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340 def _walk(self, relpath, recurse, filefilter=isrevlog): |
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341 '''yields (unencoded, encoded, size)''' |
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342 path = self.path |
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343 if relpath: |
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344 path += '/' + relpath |
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345 striplen = len(self.path) + 1 |
6899 | 346 l = [] |
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347 if self.rawvfs.isdir(path): |
6899 | 348 visit = [path] |
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349 readdir = self.rawvfs.readdir |
6899 | 350 while visit: |
351 p = visit.pop() | |
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352 for f, kind, st in readdir(p, stat=True): |
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353 fp = p + '/' + f |
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354 if filefilter(f, kind, st): |
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355 n = util.pconvert(fp[striplen:]) |
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356 l.append((decodedir(n), n, st.st_size)) |
6899 | 357 elif kind == stat.S_IFDIR and recurse: |
358 visit.append(fp) | |
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359 l.sort() |
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360 return l |
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361 |
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362 def datafiles(self): |
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363 return self._walk('data', True) + self._walk('meta', True) |
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364 |
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365 def topfiles(self): |
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366 # yield manifest before changelog |
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367 return reversed(self._walk('', False)) |
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368 |
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369 def walk(self): |
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370 '''yields (unencoded, encoded, size)''' |
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371 # yield data files first |
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372 for x in self.datafiles(): |
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373 yield x |
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374 for x in self.topfiles(): |
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375 yield x |
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376 |
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377 def copylist(self): |
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378 return ['requires'] + _data.split() |
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379 |
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380 def write(self, tr): |
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381 pass |
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382 |
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383 def invalidatecaches(self): |
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384 pass |
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385 |
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386 def markremoved(self, fn): |
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387 pass |
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388 |
17744 | 389 def __contains__(self, path): |
390 '''Checks if the store contains path''' | |
391 path = "/".join(("data", path)) | |
392 # file? | |
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393 if self.vfs.exists(path + ".i"): |
17744 | 394 return True |
395 # dir? | |
396 if not path.endswith("/"): | |
397 path = path + "/" | |
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398 return self.vfs.exists(path) |
17744 | 399 |
6898
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400 class encodedstore(basicstore): |
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401 def __init__(self, path, vfstype): |
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402 vfs = vfstype(path + '/store') |
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403 self.path = vfs.base |
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404 self.createmode = _calcmode(vfs) |
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405 vfs.createmode = self.createmode |
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406 self.rawvfs = vfs |
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407 self.vfs = vfsmod.filtervfs(vfs, encodefilename) |
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408 self.opener = self.vfs |
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409 |
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410 def datafiles(self): |
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411 for a, b, size in super(encodedstore, self).datafiles(): |
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412 try: |
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413 a = decodefilename(a) |
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414 except KeyError: |
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415 a = None |
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416 yield a, b, size |
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417 |
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418 def join(self, f): |
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419 return self.path + '/' + encodefilename(f) |
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420 |
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421 def copylist(self): |
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422 return (['requires', '00changelog.i'] + |
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423 ['store/' + f for f in _data.split()]) |
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424 |
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425 class fncache(object): |
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426 # the filename used to be partially encoded |
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427 # hence the encodedir/decodedir dance |
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428 def __init__(self, vfs): |
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429 self.vfs = vfs |
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430 self.entries = None |
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431 self._dirty = False |
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432 |
8530
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433 def _load(self): |
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434 '''fill the entries from the fncache file''' |
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435 self._dirty = False |
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436 try: |
17722
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|
437 fp = self.vfs('fncache', mode='rb') |
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438 except IOError: |
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|
439 # skip nonexistent file |
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440 self.entries = set() |
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441 return |
17604
bf9894889d82
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442 self.entries = set(decodedir(fp.read()).splitlines()) |
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|
443 if '' in self.entries: |
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changeset
|
444 fp.seek(0) |
30398 | 445 for n, line in enumerate(util.iterfile(fp)): |
16404
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changeset
|
446 if not line.rstrip('\n'): |
26778
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diff
changeset
|
447 t = _('invalid entry in fncache, line %d') % (n + 1) |
26587
56b2bcea2529
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448 raise error.Abort(t) |
8530
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449 fp.close() |
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450 |
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|
451 def write(self, tr): |
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changeset
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452 if self._dirty: |
38696
89d93dd1a222
store: assert the fncache have been loaded if dirty
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38661
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changeset
|
453 assert self.entries is not None |
20883
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|
454 tr.addbackup('fncache') |
20879
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455 fp = self.vfs('fncache', mode='wb', atomictemp=True) |
cd03854a2e06
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456 if self.entries: |
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457 fp.write(encodedir('\n'.join(self.entries) + '\n')) |
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458 fp.close() |
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459 self._dirty = False |
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Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
8480
diff
changeset
|
460 |
03196ac9a8b9
store: refactor the fncache handling
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parents:
8480
diff
changeset
|
461 def add(self, fn): |
03196ac9a8b9
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parents:
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diff
changeset
|
462 if self.entries is None: |
03196ac9a8b9
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parents:
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diff
changeset
|
463 self._load() |
10577
d5bd1beff794
store: only add new entries to the fncache file
Adrian Buehlmann <adrian@cadifra.com>
parents:
10339
diff
changeset
|
464 if fn not in self.entries: |
13391
d00bbff8600e
fncachestore: defer updating the fncache file to a single file open
Adrian Buehlmann <adrian@cadifra.com>
parents:
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diff
changeset
|
465 self._dirty = True |
10577
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store: only add new entries to the fncache file
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parents:
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diff
changeset
|
466 self.entries.add(fn) |
8530
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parents:
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diff
changeset
|
467 |
20885
f49d60fa40a5
fncache: clean up fncache during strips
Durham Goode <durham@fb.com>
parents:
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diff
changeset
|
468 def remove(self, fn): |
f49d60fa40a5
fncache: clean up fncache during strips
Durham Goode <durham@fb.com>
parents:
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diff
changeset
|
469 if self.entries is None: |
f49d60fa40a5
fncache: clean up fncache during strips
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parents:
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diff
changeset
|
470 self._load() |
f49d60fa40a5
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parents:
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diff
changeset
|
471 try: |
f49d60fa40a5
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parents:
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diff
changeset
|
472 self.entries.remove(fn) |
f49d60fa40a5
fncache: clean up fncache during strips
Durham Goode <durham@fb.com>
parents:
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diff
changeset
|
473 self._dirty = True |
f49d60fa40a5
fncache: clean up fncache during strips
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parents:
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diff
changeset
|
474 except KeyError: |
f49d60fa40a5
fncache: clean up fncache during strips
Durham Goode <durham@fb.com>
parents:
20884
diff
changeset
|
475 pass |
f49d60fa40a5
fncache: clean up fncache during strips
Durham Goode <durham@fb.com>
parents:
20884
diff
changeset
|
476 |
17782
8095306c1fb2
store: move __contains__() implementation from class fncache into fncachestore
Adrian Buehlmann <adrian@cadifra.com>
parents:
17747
diff
changeset
|
477 def __contains__(self, fn): |
8530
03196ac9a8b9
store: refactor the fncache handling
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parents:
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diff
changeset
|
478 if self.entries is None: |
03196ac9a8b9
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parents:
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diff
changeset
|
479 self._load() |
17782
8095306c1fb2
store: move __contains__() implementation from class fncache into fncachestore
Adrian Buehlmann <adrian@cadifra.com>
parents:
17747
diff
changeset
|
480 return fn in self.entries |
8530
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store: refactor the fncache handling
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parents:
8480
diff
changeset
|
481 |
03196ac9a8b9
store: refactor the fncache handling
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parents:
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diff
changeset
|
482 def __iter__(self): |
03196ac9a8b9
store: refactor the fncache handling
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parents:
8480
diff
changeset
|
483 if self.entries is None: |
03196ac9a8b9
store: refactor the fncache handling
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parents:
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diff
changeset
|
484 self._load() |
03196ac9a8b9
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parents:
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diff
changeset
|
485 return iter(self.entries) |
7229
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parents:
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diff
changeset
|
486 |
33412
a42369e04aee
vfs: rename auditvfs to proxyvfs
Yuya Nishihara <yuya@tcha.org>
parents:
32372
diff
changeset
|
487 class _fncachevfs(vfsmod.abstractvfs, vfsmod.proxyvfs): |
17721
cf236e3501c3
store: rename argument name from "op"(ener) to "vfs"
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
17693
diff
changeset
|
488 def __init__(self, vfs, fnc, encode): |
33412
a42369e04aee
vfs: rename auditvfs to proxyvfs
Yuya Nishihara <yuya@tcha.org>
parents:
32372
diff
changeset
|
489 vfsmod.proxyvfs.__init__(self, vfs) |
14194
3a90fb3addc1
store: break up reference cycle introduced in 9cbff8a39a2a
Adrian Buehlmann <adrian@cadifra.com>
parents:
14166
diff
changeset
|
490 self.fncache = fnc |
3a90fb3addc1
store: break up reference cycle introduced in 9cbff8a39a2a
Adrian Buehlmann <adrian@cadifra.com>
parents:
14166
diff
changeset
|
491 self.encode = encode |
3a90fb3addc1
store: break up reference cycle introduced in 9cbff8a39a2a
Adrian Buehlmann <adrian@cadifra.com>
parents:
14166
diff
changeset
|
492 |
3a90fb3addc1
store: break up reference cycle introduced in 9cbff8a39a2a
Adrian Buehlmann <adrian@cadifra.com>
parents:
14166
diff
changeset
|
493 def __call__(self, path, mode='r', *args, **kw): |
38661
8ac0c9cd4c48
fncache: avoid loading the filename cache when not actually modifying it
Martijn Pieters <mj@zopatista.com>
parents:
37409
diff
changeset
|
494 encoded = self.encode(path) |
28007
fb92927f9775
treemanifests: fix streaming clone
Martin von Zweigbergk <martinvonz@google.com>
parents:
28006
diff
changeset
|
495 if mode not in ('r', 'rb') and (path.startswith('data/') or |
fb92927f9775
treemanifests: fix streaming clone
Martin von Zweigbergk <martinvonz@google.com>
parents:
28006
diff
changeset
|
496 path.startswith('meta/')): |
38661
8ac0c9cd4c48
fncache: avoid loading the filename cache when not actually modifying it
Martijn Pieters <mj@zopatista.com>
parents:
37409
diff
changeset
|
497 # do not trigger a fncache load when adding a file that already is |
8ac0c9cd4c48
fncache: avoid loading the filename cache when not actually modifying it
Martijn Pieters <mj@zopatista.com>
parents:
37409
diff
changeset
|
498 # known to exist. |
8ac0c9cd4c48
fncache: avoid loading the filename cache when not actually modifying it
Martijn Pieters <mj@zopatista.com>
parents:
37409
diff
changeset
|
499 notload = self.fncache.entries is None and self.vfs.exists(encoded) |
8ac0c9cd4c48
fncache: avoid loading the filename cache when not actually modifying it
Martijn Pieters <mj@zopatista.com>
parents:
37409
diff
changeset
|
500 if notload and 'a' in mode and not self.vfs.stat(encoded).st_size: |
8ac0c9cd4c48
fncache: avoid loading the filename cache when not actually modifying it
Martijn Pieters <mj@zopatista.com>
parents:
37409
diff
changeset
|
501 # when appending to an existing file, if the file has size zero, |
8ac0c9cd4c48
fncache: avoid loading the filename cache when not actually modifying it
Martijn Pieters <mj@zopatista.com>
parents:
37409
diff
changeset
|
502 # it should be considered as missing. Such zero-size files are |
8ac0c9cd4c48
fncache: avoid loading the filename cache when not actually modifying it
Martijn Pieters <mj@zopatista.com>
parents:
37409
diff
changeset
|
503 # the result of truncation when a transaction is aborted. |
8ac0c9cd4c48
fncache: avoid loading the filename cache when not actually modifying it
Martijn Pieters <mj@zopatista.com>
parents:
37409
diff
changeset
|
504 notload = False |
8ac0c9cd4c48
fncache: avoid loading the filename cache when not actually modifying it
Martijn Pieters <mj@zopatista.com>
parents:
37409
diff
changeset
|
505 if not notload: |
8ac0c9cd4c48
fncache: avoid loading the filename cache when not actually modifying it
Martijn Pieters <mj@zopatista.com>
parents:
37409
diff
changeset
|
506 self.fncache.add(path) |
8ac0c9cd4c48
fncache: avoid loading the filename cache when not actually modifying it
Martijn Pieters <mj@zopatista.com>
parents:
37409
diff
changeset
|
507 return self.vfs(encoded, mode, *args, **kw) |
14194
3a90fb3addc1
store: break up reference cycle introduced in 9cbff8a39a2a
Adrian Buehlmann <adrian@cadifra.com>
parents:
14166
diff
changeset
|
508 |
17725
ffd589d4b785
vfs: define "join()" in each classes derived from "abstractvfs"
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
17724
diff
changeset
|
509 def join(self, path): |
ffd589d4b785
vfs: define "join()" in each classes derived from "abstractvfs"
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
17724
diff
changeset
|
510 if path: |
ffd589d4b785
vfs: define "join()" in each classes derived from "abstractvfs"
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
17724
diff
changeset
|
511 return self.vfs.join(self.encode(path)) |
ffd589d4b785
vfs: define "join()" in each classes derived from "abstractvfs"
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
17724
diff
changeset
|
512 else: |
ffd589d4b785
vfs: define "join()" in each classes derived from "abstractvfs"
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
17724
diff
changeset
|
513 return self.vfs.join(path) |
ffd589d4b785
vfs: define "join()" in each classes derived from "abstractvfs"
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
17724
diff
changeset
|
514 |
7229
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parents:
6989
diff
changeset
|
515 class fncachestore(basicstore): |
17651
3b49c28658f6
store: rename "openertype" argument to "vfstype"
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
17649
diff
changeset
|
516 def __init__(self, path, vfstype, dotencode): |
17591
9a5c2ecd1158
store: move encode lambda logic into fncachestore
Adrian Buehlmann <adrian@cadifra.com>
parents:
17590
diff
changeset
|
517 if dotencode: |
18435
8c019d2fd7c0
store: switch to C-based hashed path encoding
Bryan O'Sullivan <bryano@fb.com>
parents:
18430
diff
changeset
|
518 encode = _pathencode |
17591
9a5c2ecd1158
store: move encode lambda logic into fncachestore
Adrian Buehlmann <adrian@cadifra.com>
parents:
17590
diff
changeset
|
519 else: |
9a5c2ecd1158
store: move encode lambda logic into fncachestore
Adrian Buehlmann <adrian@cadifra.com>
parents:
17590
diff
changeset
|
520 encode = _plainhybridencode |
12687
34d8247a4595
store: encode first period or space in filenames (issue1713)
Adrian Buehlmann <adrian@cadifra.com>
parents:
12171
diff
changeset
|
521 self.encode = encode |
17724
bf4b72d8dd4d
store: initialize vfs field first to use it for initialization of others
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
17722
diff
changeset
|
522 vfs = vfstype(path + '/store') |
bf4b72d8dd4d
store: initialize vfs field first to use it for initialization of others
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
17722
diff
changeset
|
523 self.path = vfs.base |
17562
b42b0729744d
store: reduce string concatenation when joining
Bryan O'Sullivan <bryano@fb.com>
parents:
17555
diff
changeset
|
524 self.pathsep = self.path + '/' |
17726
7cb7e17c23b2
store: invoke "os.stat()" for "createmode" initialization via vfs
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
17725
diff
changeset
|
525 self.createmode = _calcmode(vfs) |
17652
2c6f7231becc
store: rename "op" variables to "vfs"
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
17651
diff
changeset
|
526 vfs.createmode = self.createmode |
17727
6492b39a44d5
store: replace invocation of "getsize()" by "vfs.stat()"
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
17726
diff
changeset
|
527 self.rawvfs = vfs |
17652
2c6f7231becc
store: rename "op" variables to "vfs"
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
17651
diff
changeset
|
528 fnc = fncache(vfs) |
9133
996c1cd8f530
store: eliminate reference cycle in fncachestore
Simon Heimberg <simohe@besonet.ch>
parents:
8778
diff
changeset
|
529 self.fncache = fnc |
17653
dacb50696b75
store: initialize "vfs" fields by "vfs" constructors
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
17652
diff
changeset
|
530 self.vfs = _fncachevfs(vfs, fnc, encode) |
dacb50696b75
store: initialize "vfs" fields by "vfs" constructors
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
17652
diff
changeset
|
531 self.opener = self.vfs |
7229
7946503ec76e
introduce fncache repository layout
Adrian Buehlmann <adrian@cadifra.com>
parents:
6989
diff
changeset
|
532 |
7946503ec76e
introduce fncache repository layout
Adrian Buehlmann <adrian@cadifra.com>
parents:
6989
diff
changeset
|
533 def join(self, f): |
17562
b42b0729744d
store: reduce string concatenation when joining
Bryan O'Sullivan <bryano@fb.com>
parents:
17555
diff
changeset
|
534 return self.pathsep + self.encode(f) |
7229
7946503ec76e
introduce fncache repository layout
Adrian Buehlmann <adrian@cadifra.com>
parents:
6989
diff
changeset
|
535 |
17731
c85dbae29684
store: restore getsize method
Matt Mackall <mpm@selenic.com>
parents:
17728
diff
changeset
|
536 def getsize(self, path): |
c85dbae29684
store: restore getsize method
Matt Mackall <mpm@selenic.com>
parents:
17728
diff
changeset
|
537 return self.rawvfs.stat(path).st_size |
c85dbae29684
store: restore getsize method
Matt Mackall <mpm@selenic.com>
parents:
17728
diff
changeset
|
538 |
7229
7946503ec76e
introduce fncache repository layout
Adrian Buehlmann <adrian@cadifra.com>
parents:
6989
diff
changeset
|
539 def datafiles(self): |
17373
4cbb1137941d
store: sort the results of fncachestore.datafiles()
Bryan O'Sullivan <bryano@fb.com>
parents:
17249
diff
changeset
|
540 for f in sorted(self.fncache): |
12687
34d8247a4595
store: encode first period or space in filenames (issue1713)
Adrian Buehlmann <adrian@cadifra.com>
parents:
12171
diff
changeset
|
541 ef = self.encode(f) |
7229
7946503ec76e
introduce fncache repository layout
Adrian Buehlmann <adrian@cadifra.com>
parents:
6989
diff
changeset
|
542 try: |
17731
c85dbae29684
store: restore getsize method
Matt Mackall <mpm@selenic.com>
parents:
17728
diff
changeset
|
543 yield f, ef, self.getsize(ef) |
25660
328739ea70c3
global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25658
diff
changeset
|
544 except OSError as err: |
17374
0cec762790ed
store: only one kind of OSError means "nonexistent entry"
Bryan O'Sullivan <bryano@fb.com>
parents:
17373
diff
changeset
|
545 if err.errno != errno.ENOENT: |
0cec762790ed
store: only one kind of OSError means "nonexistent entry"
Bryan O'Sullivan <bryano@fb.com>
parents:
17373
diff
changeset
|
546 raise |
7229
7946503ec76e
introduce fncache repository layout
Adrian Buehlmann <adrian@cadifra.com>
parents:
6989
diff
changeset
|
547 |
7946503ec76e
introduce fncache repository layout
Adrian Buehlmann <adrian@cadifra.com>
parents:
6989
diff
changeset
|
548 def copylist(self): |
38872
576eef1ab43d
narrow: move .hg/narrowspec to .hg/store/narrowspec (BC)
Martin von Zweigbergk <martinvonz@google.com>
parents:
38783
diff
changeset
|
549 d = ('narrowspec data meta dh fncache phaseroots obsstore' |
15742
65df60a3f96b
phases: prevent rebase to rebase immutable changeset.
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
15740
diff
changeset
|
550 ' 00manifest.d 00manifest.i 00changelog.d 00changelog.i') |
7229
7946503ec76e
introduce fncache repository layout
Adrian Buehlmann <adrian@cadifra.com>
parents:
6989
diff
changeset
|
551 return (['requires', '00changelog.i'] + |
13426
643b8212813e
store: remove pointless pathjoiner parameter
Adrian Buehlmann <adrian@cadifra.com>
parents:
13391
diff
changeset
|
552 ['store/' + f for f in d.split()]) |
7229
7946503ec76e
introduce fncache repository layout
Adrian Buehlmann <adrian@cadifra.com>
parents:
6989
diff
changeset
|
553 |
20883
cd443c7589cc
fncache: move fncache writing to be in a transaction
Durham Goode <durham@fb.com>
parents:
20879
diff
changeset
|
554 def write(self, tr): |
cd443c7589cc
fncache: move fncache writing to be in a transaction
Durham Goode <durham@fb.com>
parents:
20879
diff
changeset
|
555 self.fncache.write(tr) |
13391
d00bbff8600e
fncachestore: defer updating the fncache file to a single file open
Adrian Buehlmann <adrian@cadifra.com>
parents:
13169
diff
changeset
|
556 |
20884
2efdd186925d
caches: invalidate store caches when lock is taken
Durham Goode <durham@fb.com>
parents:
20883
diff
changeset
|
557 def invalidatecaches(self): |
2efdd186925d
caches: invalidate store caches when lock is taken
Durham Goode <durham@fb.com>
parents:
20883
diff
changeset
|
558 self.fncache.entries = None |
2efdd186925d
caches: invalidate store caches when lock is taken
Durham Goode <durham@fb.com>
parents:
20883
diff
changeset
|
559 |
20885
f49d60fa40a5
fncache: clean up fncache during strips
Durham Goode <durham@fb.com>
parents:
20884
diff
changeset
|
560 def markremoved(self, fn): |
f49d60fa40a5
fncache: clean up fncache during strips
Durham Goode <durham@fb.com>
parents:
20884
diff
changeset
|
561 self.fncache.remove(fn) |
f49d60fa40a5
fncache: clean up fncache during strips
Durham Goode <durham@fb.com>
parents:
20884
diff
changeset
|
562 |
17783
df55ce6854c3
store: add new _exists helper function on fncachestore
Adrian Buehlmann <adrian@cadifra.com>
parents:
17782
diff
changeset
|
563 def _exists(self, f): |
df55ce6854c3
store: add new _exists helper function on fncachestore
Adrian Buehlmann <adrian@cadifra.com>
parents:
17782
diff
changeset
|
564 ef = self.encode(f) |
df55ce6854c3
store: add new _exists helper function on fncachestore
Adrian Buehlmann <adrian@cadifra.com>
parents:
17782
diff
changeset
|
565 try: |
df55ce6854c3
store: add new _exists helper function on fncachestore
Adrian Buehlmann <adrian@cadifra.com>
parents:
17782
diff
changeset
|
566 self.getsize(ef) |
df55ce6854c3
store: add new _exists helper function on fncachestore
Adrian Buehlmann <adrian@cadifra.com>
parents:
17782
diff
changeset
|
567 return True |
25660
328739ea70c3
global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25658
diff
changeset
|
568 except OSError as err: |
17783
df55ce6854c3
store: add new _exists helper function on fncachestore
Adrian Buehlmann <adrian@cadifra.com>
parents:
17782
diff
changeset
|
569 if err.errno != errno.ENOENT: |
df55ce6854c3
store: add new _exists helper function on fncachestore
Adrian Buehlmann <adrian@cadifra.com>
parents:
17782
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changeset
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570 raise |
df55ce6854c3
store: add new _exists helper function on fncachestore
Adrian Buehlmann <adrian@cadifra.com>
parents:
17782
diff
changeset
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571 # nonexistent entry |
df55ce6854c3
store: add new _exists helper function on fncachestore
Adrian Buehlmann <adrian@cadifra.com>
parents:
17782
diff
changeset
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572 return False |
df55ce6854c3
store: add new _exists helper function on fncachestore
Adrian Buehlmann <adrian@cadifra.com>
parents:
17782
diff
changeset
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573 |
17745 | 574 def __contains__(self, path): |
575 '''Checks if the store contains path''' | |
576 path = "/".join(("data", path)) | |
17782
8095306c1fb2
store: move __contains__() implementation from class fncache into fncachestore
Adrian Buehlmann <adrian@cadifra.com>
parents:
17747
diff
changeset
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577 # check for files (exact match) |
17784
73e1ab39792c
store: fncache may contain non-existent entries (fixes b9a56b816ff2)
Adrian Buehlmann <adrian@cadifra.com>
parents:
17783
diff
changeset
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578 e = path + '.i' |
73e1ab39792c
store: fncache may contain non-existent entries (fixes b9a56b816ff2)
Adrian Buehlmann <adrian@cadifra.com>
parents:
17783
diff
changeset
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579 if e in self.fncache and self._exists(e): |
17782
8095306c1fb2
store: move __contains__() implementation from class fncache into fncachestore
Adrian Buehlmann <adrian@cadifra.com>
parents:
17747
diff
changeset
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580 return True |
8095306c1fb2
store: move __contains__() implementation from class fncache into fncachestore
Adrian Buehlmann <adrian@cadifra.com>
parents:
17747
diff
changeset
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581 # now check for directories (prefix match) |
8095306c1fb2
store: move __contains__() implementation from class fncache into fncachestore
Adrian Buehlmann <adrian@cadifra.com>
parents:
17747
diff
changeset
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582 if not path.endswith('/'): |
8095306c1fb2
store: move __contains__() implementation from class fncache into fncachestore
Adrian Buehlmann <adrian@cadifra.com>
parents:
17747
diff
changeset
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583 path += '/' |
8095306c1fb2
store: move __contains__() implementation from class fncache into fncachestore
Adrian Buehlmann <adrian@cadifra.com>
parents:
17747
diff
changeset
|
584 for e in self.fncache: |
17784
73e1ab39792c
store: fncache may contain non-existent entries (fixes b9a56b816ff2)
Adrian Buehlmann <adrian@cadifra.com>
parents:
17783
diff
changeset
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585 if e.startswith(path) and self._exists(e): |
17782
8095306c1fb2
store: move __contains__() implementation from class fncache into fncachestore
Adrian Buehlmann <adrian@cadifra.com>
parents:
17747
diff
changeset
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586 return True |
8095306c1fb2
store: move __contains__() implementation from class fncache into fncachestore
Adrian Buehlmann <adrian@cadifra.com>
parents:
17747
diff
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587 return False |
17745 | 588 |
17651
3b49c28658f6
store: rename "openertype" argument to "vfstype"
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
17649
diff
changeset
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589 def store(requirements, path, vfstype): |
6898
69aeaaaf6e07
store: simplify class hierarchy
Matt Mackall <mpm@selenic.com>
parents:
6897
diff
changeset
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590 if 'store' in requirements: |
7229
7946503ec76e
introduce fncache repository layout
Adrian Buehlmann <adrian@cadifra.com>
parents:
6989
diff
changeset
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591 if 'fncache' in requirements: |
17651
3b49c28658f6
store: rename "openertype" argument to "vfstype"
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
17649
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changeset
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592 return fncachestore(path, vfstype, 'dotencode' in requirements) |
3b49c28658f6
store: rename "openertype" argument to "vfstype"
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
17649
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changeset
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593 return encodedstore(path, vfstype) |
3b49c28658f6
store: rename "openertype" argument to "vfstype"
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
17649
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594 return basicstore(path, vfstype) |