Mercurial > hg
annotate hgext/remotefilelog/metadatastore.py @ 40610:13d4ad8d7801
py3: fix keyword arguments handling in hgext/remotefilelog/
Keys of kwargs on Python 3 should be strings. This patch fixes them by appending
r'' prefixes, and using pycompat.byteskwargs() and pycompat.strkwargs().
Differential Revision: https://phab.mercurial-scm.org/D5259
author | Pulkit Goyal <pulkit@yandex-team.ru> |
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date | Tue, 13 Nov 2018 17:41:26 +0300 |
parents | 3a333a582d7b |
children | 2372284d9457 |
rev | line source |
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1 from __future__ import absolute_import |
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2 |
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3 from mercurial.node import hex, nullid |
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4 from . import ( |
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5 basestore, |
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6 shallowutil, |
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7 ) |
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8 |
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9 class unionmetadatastore(basestore.baseunionstore): |
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10 def __init__(self, *args, **kwargs): |
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11 super(unionmetadatastore, self).__init__(*args, **kwargs) |
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12 |
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13 self.stores = args |
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14 self.writestore = kwargs.get(r'writestore') |
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15 |
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16 # If allowincomplete==True then the union store can return partial |
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17 # ancestor lists, otherwise it will throw a KeyError if a full |
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18 # history can't be found. |
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19 self.allowincomplete = kwargs.get(r'allowincomplete', False) |
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20 |
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21 def getancestors(self, name, node, known=None): |
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22 """Returns as many ancestors as we're aware of. |
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23 |
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24 return value: { |
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25 node: (p1, p2, linknode, copyfrom), |
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26 ... |
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27 } |
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28 """ |
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29 if known is None: |
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30 known = set() |
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31 if node in known: |
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32 return [] |
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33 |
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34 ancestors = {} |
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35 def traverse(curname, curnode): |
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36 # TODO: this algorithm has the potential to traverse parts of |
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37 # history twice. Ex: with A->B->C->F and A->B->D->F, both D and C |
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38 # may be queued as missing, then B and A are traversed for both. |
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39 queue = [(curname, curnode)] |
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40 missing = [] |
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41 seen = set() |
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42 while queue: |
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43 name, node = queue.pop() |
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44 if (name, node) in seen: |
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45 continue |
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46 seen.add((name, node)) |
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47 value = ancestors.get(node) |
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48 if not value: |
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49 missing.append((name, node)) |
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50 continue |
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51 p1, p2, linknode, copyfrom = value |
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52 if p1 != nullid and p1 not in known: |
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53 queue.append((copyfrom or curname, p1)) |
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54 if p2 != nullid and p2 not in known: |
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55 queue.append((curname, p2)) |
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56 return missing |
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57 |
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58 missing = [(name, node)] |
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59 while missing: |
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60 curname, curnode = missing.pop() |
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61 try: |
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62 ancestors.update(self._getpartialancestors(curname, curnode, |
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63 known=known)) |
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64 newmissing = traverse(curname, curnode) |
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65 missing.extend(newmissing) |
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66 except KeyError: |
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67 # If we allow incomplete histories, don't throw. |
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68 if not self.allowincomplete: |
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69 raise |
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70 # If the requested name+node doesn't exist, always throw. |
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71 if (curname, curnode) == (name, node): |
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72 raise |
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73 |
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74 # TODO: ancestors should probably be (name, node) -> (value) |
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75 return ancestors |
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76 |
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77 @basestore.baseunionstore.retriable |
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78 def _getpartialancestors(self, name, node, known=None): |
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79 for store in self.stores: |
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80 try: |
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81 return store.getancestors(name, node, known=known) |
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82 except KeyError: |
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83 pass |
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84 |
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85 raise KeyError((name, hex(node))) |
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86 |
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87 @basestore.baseunionstore.retriable |
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88 def getnodeinfo(self, name, node): |
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89 for store in self.stores: |
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90 try: |
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91 return store.getnodeinfo(name, node) |
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92 except KeyError: |
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93 pass |
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94 |
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95 raise KeyError((name, hex(node))) |
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96 |
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97 def add(self, name, node, data): |
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98 raise RuntimeError("cannot add content only to remotefilelog " |
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99 "contentstore") |
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100 |
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101 def getmissing(self, keys): |
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102 missing = keys |
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103 for store in self.stores: |
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104 if missing: |
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105 missing = store.getmissing(missing) |
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106 return missing |
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107 |
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108 def markledger(self, ledger, options=None): |
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109 for store in self.stores: |
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110 store.markledger(ledger, options) |
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111 |
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112 def getmetrics(self): |
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113 metrics = [s.getmetrics() for s in self.stores] |
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114 return shallowutil.sumdicts(*metrics) |
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115 |
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116 class remotefilelogmetadatastore(basestore.basestore): |
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117 def getancestors(self, name, node, known=None): |
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118 """Returns as many ancestors as we're aware of. |
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119 |
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120 return value: { |
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121 node: (p1, p2, linknode, copyfrom), |
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122 ... |
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123 } |
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124 """ |
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125 data = self._getdata(name, node) |
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126 ancestors = shallowutil.ancestormap(data) |
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127 return ancestors |
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128 |
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129 def getnodeinfo(self, name, node): |
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130 return self.getancestors(name, node)[node] |
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131 |
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132 def add(self, name, node, parents, linknode): |
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133 raise RuntimeError("cannot add metadata only to remotefilelog " |
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134 "metadatastore") |
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135 |
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136 class remotemetadatastore(object): |
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137 def __init__(self, ui, fileservice, shared): |
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138 self._fileservice = fileservice |
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139 self._shared = shared |
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140 |
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141 def getancestors(self, name, node, known=None): |
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142 self._fileservice.prefetch([(name, hex(node))], force=True, |
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143 fetchdata=False, fetchhistory=True) |
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144 return self._shared.getancestors(name, node, known=known) |
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145 |
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146 def getnodeinfo(self, name, node): |
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147 return self.getancestors(name, node)[node] |
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148 |
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149 def add(self, name, node, data): |
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150 raise RuntimeError("cannot add to a remote store") |
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151 |
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152 def getmissing(self, keys): |
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153 return keys |
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154 |
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155 def markledger(self, ledger, options=None): |
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156 pass |