Mercurial > hg-stable
annotate hgext/sqlitestore.py @ 42824:2c4f656c8e9f
interfaceutil: move to interfaces/
Now that we have a dedicated folder for interfaces, let's move interfaceutil
there.
Differential Revision: https://phab.mercurial-scm.org/D6742
author | Pulkit Goyal <pulkit@yandex-team.ru> |
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date | Sun, 18 Aug 2019 02:28:42 +0300 |
parents | 268662aac075 |
children | 2372284d9457 |
rev | line source |
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1 # sqlitestore.py - Storage backend that uses SQLite |
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2 # |
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3 # Copyright 2018 Gregory Szorc <gregory.szorc@gmail.com> |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
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6 # GNU General Public License version 2 or any later version. |
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7 |
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8 """store repository data in SQLite (EXPERIMENTAL) |
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9 |
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10 The sqlitestore extension enables the storage of repository data in SQLite. |
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11 |
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12 This extension is HIGHLY EXPERIMENTAL. There are NO BACKWARDS COMPATIBILITY |
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13 GUARANTEES. This means that repositories created with this extension may |
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14 only be usable with the exact version of this extension/Mercurial that was |
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15 used. The extension attempts to enforce this in order to prevent repository |
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16 corruption. |
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17 |
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18 In addition, several features are not yet supported or have known bugs: |
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19 |
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20 * Only some data is stored in SQLite. Changeset, manifest, and other repository |
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21 data is not yet stored in SQLite. |
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22 * Transactions are not robust. If the process is aborted at the right time |
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23 during transaction close/rollback, the repository could be in an inconsistent |
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24 state. This problem will diminish once all repository data is tracked by |
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25 SQLite. |
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26 * Bundle repositories do not work (the ability to use e.g. |
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27 `hg -R <bundle-file> log` to automatically overlay a bundle on top of the |
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28 existing repository). |
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29 * Various other features don't work. |
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30 |
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31 This extension should work for basic clone/pull, update, and commit workflows. |
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32 Some history rewriting operations may fail due to lack of support for bundle |
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33 repositories. |
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34 |
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35 To use, activate the extension and set the ``storage.new-repo-backend`` config |
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36 option to ``sqlite`` to enable new repositories to use SQLite for storage. |
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37 """ |
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38 |
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39 # To run the test suite with repos using SQLite by default, execute the |
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40 # following: |
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41 # |
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42 # HGREPOFEATURES="sqlitestore" run-tests.py \ |
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43 # --extra-config-opt extensions.sqlitestore= \ |
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44 # --extra-config-opt storage.new-repo-backend=sqlite |
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45 |
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46 from __future__ import absolute_import |
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47 |
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48 import hashlib |
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49 import sqlite3 |
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50 import struct |
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51 import threading |
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52 import zlib |
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53 |
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54 from mercurial.i18n import _ |
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55 from mercurial.node import ( |
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56 nullid, |
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57 nullrev, |
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58 short, |
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59 ) |
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60 from mercurial.thirdparty import ( |
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61 attr, |
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62 ) |
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63 from mercurial import ( |
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64 ancestor, |
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65 dagop, |
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66 encoding, |
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67 error, |
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68 extensions, |
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69 localrepo, |
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70 mdiff, |
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71 pycompat, |
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72 registrar, |
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73 util, |
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74 verify, |
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75 ) |
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76 from mercurial.interfaces import ( |
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77 repository, |
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78 util as interfaceutil, |
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79 ) |
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80 from mercurial.utils import ( |
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81 storageutil, |
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82 ) |
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83 |
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84 try: |
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85 from mercurial import zstd |
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86 zstd.__version__ |
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87 except ImportError: |
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88 zstd = None |
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89 |
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90 configtable = {} |
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91 configitem = registrar.configitem(configtable) |
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92 |
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93 # experimental config: storage.sqlite.compression |
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94 configitem('storage', 'sqlite.compression', |
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95 default='zstd' if zstd else 'zlib', |
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96 experimental=True) |
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97 |
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98 # Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for |
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99 # extensions which SHIP WITH MERCURIAL. Non-mainline extensions should |
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100 # be specifying the version(s) of Mercurial they are tested with, or |
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101 # leave the attribute unspecified. |
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102 testedwith = 'ships-with-hg-core' |
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103 |
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104 REQUIREMENT = b'exp-sqlite-001' |
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105 REQUIREMENT_ZSTD = b'exp-sqlite-comp-001=zstd' |
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106 REQUIREMENT_ZLIB = b'exp-sqlite-comp-001=zlib' |
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107 REQUIREMENT_NONE = b'exp-sqlite-comp-001=none' |
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108 REQUIREMENT_SHALLOW_FILES = b'exp-sqlite-shallow-files' |
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109 |
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110 CURRENT_SCHEMA_VERSION = 1 |
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111 |
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112 COMPRESSION_NONE = 1 |
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113 COMPRESSION_ZSTD = 2 |
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114 COMPRESSION_ZLIB = 3 |
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115 |
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116 FLAG_CENSORED = 1 |
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117 FLAG_MISSING_P1 = 2 |
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118 FLAG_MISSING_P2 = 4 |
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119 |
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120 CREATE_SCHEMA = [ |
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121 # Deltas are stored as content-indexed blobs. |
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122 # compression column holds COMPRESSION_* constant for how the |
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123 # delta is encoded. |
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124 |
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125 r'CREATE TABLE delta (' |
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126 r' id INTEGER PRIMARY KEY, ' |
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127 r' compression INTEGER NOT NULL, ' |
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128 r' hash BLOB UNIQUE ON CONFLICT ABORT, ' |
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129 r' delta BLOB NOT NULL ' |
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130 r')', |
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131 |
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132 # Tracked paths are denormalized to integers to avoid redundant |
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133 # storage of the path name. |
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134 r'CREATE TABLE filepath (' |
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135 r' id INTEGER PRIMARY KEY, ' |
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136 r' path BLOB NOT NULL ' |
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137 r')', |
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138 |
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139 r'CREATE UNIQUE INDEX filepath_path ' |
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140 r' ON filepath (path)', |
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141 |
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142 # We have a single table for all file revision data. |
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143 # Each file revision is uniquely described by a (path, rev) and |
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144 # (path, node). |
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145 # |
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146 # Revision data is stored as a pointer to the delta producing this |
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147 # revision and the file revision whose delta should be applied before |
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148 # that one. One can reconstruct the delta chain by recursively following |
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149 # the delta base revision pointers until one encounters NULL. |
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150 # |
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151 # flags column holds bitwise integer flags controlling storage options. |
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152 # These flags are defined by the FLAG_* constants. |
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153 r'CREATE TABLE fileindex (' |
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154 r' id INTEGER PRIMARY KEY, ' |
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155 r' pathid INTEGER REFERENCES filepath(id), ' |
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156 r' revnum INTEGER NOT NULL, ' |
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157 r' p1rev INTEGER NOT NULL, ' |
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158 r' p2rev INTEGER NOT NULL, ' |
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159 r' linkrev INTEGER NOT NULL, ' |
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160 r' flags INTEGER NOT NULL, ' |
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161 r' deltaid INTEGER REFERENCES delta(id), ' |
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162 r' deltabaseid INTEGER REFERENCES fileindex(id), ' |
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163 r' node BLOB NOT NULL ' |
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164 r')', |
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165 |
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166 r'CREATE UNIQUE INDEX fileindex_pathrevnum ' |
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167 r' ON fileindex (pathid, revnum)', |
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168 |
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169 r'CREATE UNIQUE INDEX fileindex_pathnode ' |
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170 r' ON fileindex (pathid, node)', |
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171 |
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172 # Provide a view over all file data for convenience. |
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173 r'CREATE VIEW filedata AS ' |
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174 r'SELECT ' |
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175 r' fileindex.id AS id, ' |
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176 r' filepath.id AS pathid, ' |
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177 r' filepath.path AS path, ' |
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178 r' fileindex.revnum AS revnum, ' |
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179 r' fileindex.node AS node, ' |
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180 r' fileindex.p1rev AS p1rev, ' |
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181 r' fileindex.p2rev AS p2rev, ' |
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182 r' fileindex.linkrev AS linkrev, ' |
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183 r' fileindex.flags AS flags, ' |
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184 r' fileindex.deltaid AS deltaid, ' |
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185 r' fileindex.deltabaseid AS deltabaseid ' |
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186 r'FROM filepath, fileindex ' |
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187 r'WHERE fileindex.pathid=filepath.id', |
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188 |
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189 r'PRAGMA user_version=%d' % CURRENT_SCHEMA_VERSION, |
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190 ] |
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191 |
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192 def resolvedeltachain(db, pathid, node, revisioncache, |
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193 stoprids, zstddctx=None): |
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194 """Resolve a delta chain for a file node.""" |
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195 |
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196 # TODO the "not in ({stops})" here is possibly slowing down the query |
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197 # because it needs to perform the lookup on every recursive invocation. |
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198 # This could possibly be faster if we created a temporary query with |
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199 # baseid "poisoned" to null and limited the recursive filter to |
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200 # "is not null". |
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201 res = db.execute( |
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202 r'WITH RECURSIVE ' |
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203 r' deltachain(deltaid, baseid) AS (' |
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204 r' SELECT deltaid, deltabaseid FROM fileindex ' |
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205 r' WHERE pathid=? AND node=? ' |
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206 r' UNION ALL ' |
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207 r' SELECT fileindex.deltaid, deltabaseid ' |
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208 r' FROM fileindex, deltachain ' |
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209 r' WHERE ' |
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210 r' fileindex.id=deltachain.baseid ' |
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211 r' AND deltachain.baseid IS NOT NULL ' |
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212 r' AND fileindex.id NOT IN ({stops}) ' |
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213 r' ) ' |
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214 r'SELECT deltachain.baseid, compression, delta ' |
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215 r'FROM deltachain, delta ' |
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216 r'WHERE delta.id=deltachain.deltaid'.format( |
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217 stops=r','.join([r'?'] * len(stoprids))), |
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218 tuple([pathid, node] + list(stoprids.keys()))) |
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219 |
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220 deltas = [] |
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221 lastdeltabaseid = None |
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222 |
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223 for deltabaseid, compression, delta in res: |
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224 lastdeltabaseid = deltabaseid |
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225 |
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226 if compression == COMPRESSION_ZSTD: |
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227 delta = zstddctx.decompress(delta) |
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228 elif compression == COMPRESSION_NONE: |
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229 delta = delta |
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230 elif compression == COMPRESSION_ZLIB: |
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231 delta = zlib.decompress(delta) |
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232 else: |
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233 raise SQLiteStoreError('unhandled compression type: %d' % |
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234 compression) |
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235 |
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236 deltas.append(delta) |
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237 |
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238 if lastdeltabaseid in stoprids: |
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239 basetext = revisioncache[stoprids[lastdeltabaseid]] |
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240 else: |
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241 basetext = deltas.pop() |
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242 |
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243 deltas.reverse() |
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244 fulltext = mdiff.patches(basetext, deltas) |
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245 |
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246 # SQLite returns buffer instances for blob columns on Python 2. This |
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247 # type can propagate through the delta application layer. Because |
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248 # downstream callers assume revisions are bytes, cast as needed. |
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249 if not isinstance(fulltext, bytes): |
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250 fulltext = bytes(delta) |
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251 |
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252 return fulltext |
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253 |
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254 def insertdelta(db, compression, hash, delta): |
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255 try: |
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256 return db.execute( |
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257 r'INSERT INTO delta (compression, hash, delta) ' |
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258 r'VALUES (?, ?, ?)', |
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259 (compression, hash, delta)).lastrowid |
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260 except sqlite3.IntegrityError: |
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261 return db.execute( |
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262 r'SELECT id FROM delta WHERE hash=?', |
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263 (hash,)).fetchone()[0] |
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264 |
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265 class SQLiteStoreError(error.StorageError): |
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266 pass |
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267 |
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268 @attr.s |
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269 class revisionentry(object): |
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270 rid = attr.ib() |
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271 rev = attr.ib() |
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272 node = attr.ib() |
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273 p1rev = attr.ib() |
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274 p2rev = attr.ib() |
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275 p1node = attr.ib() |
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276 p2node = attr.ib() |
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277 linkrev = attr.ib() |
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278 flags = attr.ib() |
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279 |
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280 @interfaceutil.implementer(repository.irevisiondelta) |
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281 @attr.s(slots=True) |
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282 class sqliterevisiondelta(object): |
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283 node = attr.ib() |
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284 p1node = attr.ib() |
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285 p2node = attr.ib() |
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286 basenode = attr.ib() |
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287 flags = attr.ib() |
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288 baserevisionsize = attr.ib() |
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289 revision = attr.ib() |
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290 delta = attr.ib() |
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291 linknode = attr.ib(default=None) |
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292 |
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293 @interfaceutil.implementer(repository.iverifyproblem) |
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294 @attr.s(frozen=True) |
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295 class sqliteproblem(object): |
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296 warning = attr.ib(default=None) |
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297 error = attr.ib(default=None) |
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298 node = attr.ib(default=None) |
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299 |
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300 @interfaceutil.implementer(repository.ifilestorage) |
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301 class sqlitefilestore(object): |
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302 """Implements storage for an individual tracked path.""" |
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303 |
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304 def __init__(self, db, path, compression): |
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305 self._db = db |
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306 self._path = path |
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307 |
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308 self._pathid = None |
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309 |
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310 # revnum -> node |
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311 self._revtonode = {} |
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312 # node -> revnum |
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313 self._nodetorev = {} |
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314 # node -> data structure |
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315 self._revisions = {} |
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316 |
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317 self._revisioncache = util.lrucachedict(10) |
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318 |
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319 self._compengine = compression |
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320 |
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321 if compression == 'zstd': |
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322 self._cctx = zstd.ZstdCompressor(level=3) |
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323 self._dctx = zstd.ZstdDecompressor() |
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324 else: |
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325 self._cctx = None |
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326 self._dctx = None |
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327 |
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328 self._refreshindex() |
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329 |
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330 def _refreshindex(self): |
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331 self._revtonode = {} |
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332 self._nodetorev = {} |
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333 self._revisions = {} |
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334 |
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335 res = list(self._db.execute( |
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336 r'SELECT id FROM filepath WHERE path=?', (self._path,))) |
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337 |
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338 if not res: |
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339 self._pathid = None |
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340 return |
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341 |
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342 self._pathid = res[0][0] |
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343 |
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344 res = self._db.execute( |
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345 r'SELECT id, revnum, node, p1rev, p2rev, linkrev, flags ' |
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346 r'FROM fileindex ' |
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347 r'WHERE pathid=? ' |
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348 r'ORDER BY revnum ASC', |
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349 (self._pathid,)) |
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350 |
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351 for i, row in enumerate(res): |
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352 rid, rev, node, p1rev, p2rev, linkrev, flags = row |
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353 |
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354 if i != rev: |
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355 raise SQLiteStoreError(_('sqlite database has inconsistent ' |
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356 'revision numbers')) |
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357 |
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358 if p1rev == nullrev: |
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359 p1node = nullid |
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360 else: |
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361 p1node = self._revtonode[p1rev] |
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362 |
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363 if p2rev == nullrev: |
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364 p2node = nullid |
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365 else: |
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366 p2node = self._revtonode[p2rev] |
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367 |
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368 entry = revisionentry( |
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369 rid=rid, |
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370 rev=rev, |
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371 node=node, |
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372 p1rev=p1rev, |
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373 p2rev=p2rev, |
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374 p1node=p1node, |
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375 p2node=p2node, |
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376 linkrev=linkrev, |
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377 flags=flags) |
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378 |
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379 self._revtonode[rev] = node |
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380 self._nodetorev[node] = rev |
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381 self._revisions[node] = entry |
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382 |
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383 # Start of ifileindex interface. |
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384 |
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385 def __len__(self): |
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386 return len(self._revisions) |
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|
387 |
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388 def __iter__(self): |
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389 return iter(pycompat.xrange(len(self._revisions))) |
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390 |
40387
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391 def hasnode(self, node): |
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392 if node == nullid: |
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393 return False |
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394 |
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395 return node in self._nodetorev |
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|
396 |
40326
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397 def revs(self, start=0, stop=None): |
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398 return storageutil.iterrevs(len(self._revisions), start=start, |
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399 stop=stop) |
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|
400 |
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401 def parents(self, node): |
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402 if node == nullid: |
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403 return nullid, nullid |
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parents:
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changeset
|
404 |
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parents:
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changeset
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405 if node not in self._revisions: |
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406 raise error.LookupError(node, self._path, _('no node')) |
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407 |
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408 entry = self._revisions[node] |
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409 return entry.p1node, entry.p2node |
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|
410 |
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411 def parentrevs(self, rev): |
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412 if rev == nullrev: |
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413 return nullrev, nullrev |
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414 |
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415 if rev not in self._revtonode: |
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|
416 raise IndexError(rev) |
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|
417 |
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418 entry = self._revisions[self._revtonode[rev]] |
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419 return entry.p1rev, entry.p2rev |
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|
420 |
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421 def rev(self, node): |
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422 if node == nullid: |
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423 return nullrev |
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changeset
|
424 |
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changeset
|
425 if node not in self._nodetorev: |
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426 raise error.LookupError(node, self._path, _('no node')) |
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|
427 |
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428 return self._nodetorev[node] |
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|
429 |
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430 def node(self, rev): |
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431 if rev == nullrev: |
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432 return nullid |
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|
433 |
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changeset
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434 if rev not in self._revtonode: |
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changeset
|
435 raise IndexError(rev) |
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|
436 |
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437 return self._revtonode[rev] |
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parents:
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|
438 |
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changeset
|
439 def lookup(self, node): |
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440 return storageutil.fileidlookup(self, node, self._path) |
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|
441 |
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442 def linkrev(self, rev): |
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|
443 if rev == nullrev: |
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|
444 return nullrev |
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|
445 |
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446 if rev not in self._revtonode: |
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changeset
|
447 raise IndexError(rev) |
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|
448 |
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449 entry = self._revisions[self._revtonode[rev]] |
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450 return entry.linkrev |
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|
451 |
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|
452 def iscensored(self, rev): |
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changeset
|
453 if rev == nullrev: |
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parents:
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changeset
|
454 return False |
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changeset
|
455 |
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changeset
|
456 if rev not in self._revtonode: |
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parents:
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changeset
|
457 raise IndexError(rev) |
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|
458 |
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parents:
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|
459 return self._revisions[self._revtonode[rev]].flags & FLAG_CENSORED |
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parents:
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changeset
|
460 |
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461 def commonancestorsheads(self, node1, node2): |
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462 rev1 = self.rev(node1) |
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|
463 rev2 = self.rev(node2) |
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|
464 |
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465 ancestors = ancestor.commonancestorsheads(self.parentrevs, rev1, rev2) |
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466 return pycompat.maplist(self.node, ancestors) |
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|
467 |
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|
468 def descendants(self, revs): |
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changeset
|
469 # TODO we could implement this using a recursive SQL query, which |
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parents:
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changeset
|
470 # might be faster. |
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|
471 return dagop.descendantrevs(revs, self.revs, self.parentrevs) |
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parents:
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changeset
|
472 |
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473 def heads(self, start=None, stop=None): |
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|
474 if start is None and stop is None: |
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parents:
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changeset
|
475 if not len(self): |
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parents:
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changeset
|
476 return [nullid] |
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parents:
diff
changeset
|
477 |
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|
478 startrev = self.rev(start) if start is not None else nullrev |
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|
479 stoprevs = {self.rev(n) for n in stop or []} |
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changeset
|
480 |
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|
481 revs = dagop.headrevssubset(self.revs, self.parentrevs, |
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|
482 startrev=startrev, stoprevs=stoprevs) |
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changeset
|
483 |
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changeset
|
484 return [self.node(rev) for rev in revs] |
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parents:
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changeset
|
485 |
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|
486 def children(self, node): |
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|
487 rev = self.rev(node) |
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parents:
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changeset
|
488 |
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parents:
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changeset
|
489 res = self._db.execute( |
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parents:
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changeset
|
490 r'SELECT' |
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parents:
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changeset
|
491 r' node ' |
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parents:
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changeset
|
492 r' FROM filedata ' |
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parents:
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|
493 r' WHERE path=? AND (p1rev=? OR p2rev=?) ' |
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parents:
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changeset
|
494 r' ORDER BY revnum ASC', |
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parents:
diff
changeset
|
495 (self._path, rev, rev)) |
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parents:
diff
changeset
|
496 |
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parents:
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changeset
|
497 return [row[0] for row in res] |
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parents:
diff
changeset
|
498 |
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parents:
diff
changeset
|
499 # End of ifileindex interface. |
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parents:
diff
changeset
|
500 |
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parents:
diff
changeset
|
501 # Start of ifiledata interface. |
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parents:
diff
changeset
|
502 |
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parents:
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changeset
|
503 def size(self, rev): |
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parents:
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changeset
|
504 if rev == nullrev: |
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parents:
diff
changeset
|
505 return 0 |
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parents:
diff
changeset
|
506 |
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parents:
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changeset
|
507 if rev not in self._revtonode: |
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parents:
diff
changeset
|
508 raise IndexError(rev) |
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parents:
diff
changeset
|
509 |
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parents:
diff
changeset
|
510 node = self._revtonode[rev] |
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parents:
diff
changeset
|
511 |
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parents:
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changeset
|
512 if self.renamed(node): |
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parents:
diff
changeset
|
513 return len(self.read(node)) |
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parents:
diff
changeset
|
514 |
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parents:
diff
changeset
|
515 return len(self.revision(node)) |
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parents:
diff
changeset
|
516 |
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changeset
|
517 def revision(self, node, raw=False, _verifyhash=True): |
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parents:
diff
changeset
|
518 if node in (nullid, nullrev): |
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parents:
diff
changeset
|
519 return b'' |
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diff
changeset
|
520 |
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changeset
|
521 if isinstance(node, int): |
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diff
changeset
|
522 node = self.node(node) |
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parents:
diff
changeset
|
523 |
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parents:
diff
changeset
|
524 if node not in self._nodetorev: |
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parents:
diff
changeset
|
525 raise error.LookupError(node, self._path, _('no node')) |
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parents:
diff
changeset
|
526 |
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diff
changeset
|
527 if node in self._revisioncache: |
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|
528 return self._revisioncache[node] |
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parents:
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changeset
|
529 |
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diff
changeset
|
530 # Because we have a fulltext revision cache, we are able to |
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sqlitestore: file storage backend using SQLite
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parents:
diff
changeset
|
531 # short-circuit delta chain traversal and decompression as soon as |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
532 # we encounter a revision in the cache. |
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sqlitestore: file storage backend using SQLite
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parents:
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changeset
|
533 |
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534 stoprids = {self._revisions[n].rid: n |
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parents:
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changeset
|
535 for n in self._revisioncache} |
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sqlitestore: file storage backend using SQLite
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parents:
diff
changeset
|
536 |
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parents:
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changeset
|
537 if not stoprids: |
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parents:
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changeset
|
538 stoprids[-1] = None |
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parents:
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changeset
|
539 |
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parents:
diff
changeset
|
540 fulltext = resolvedeltachain(self._db, self._pathid, node, |
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parents:
diff
changeset
|
541 self._revisioncache, stoprids, |
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|
542 zstddctx=self._dctx) |
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changeset
|
543 |
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parents:
40390
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544 # Don't verify hashes if parent nodes were rewritten, as the hash |
595641bd8404
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parents:
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|
545 # wouldn't verify. |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
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|
546 if self._revisions[node].flags & (FLAG_MISSING_P1 | FLAG_MISSING_P2): |
595641bd8404
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parents:
40390
diff
changeset
|
547 _verifyhash = False |
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diff
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|
548 |
40326
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parents:
diff
changeset
|
549 if _verifyhash: |
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parents:
diff
changeset
|
550 self._checkhash(fulltext, node) |
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parents:
diff
changeset
|
551 self._revisioncache[node] = fulltext |
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|
552 |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
553 return fulltext |
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parents:
diff
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|
554 |
42739
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rawdata: implement `rawdata` for `sqlitestore` too
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
40512
diff
changeset
|
555 def rawdata(self, *args, **kwargs): |
c9f3f4c8999a
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
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|
556 return self.revision(*args, **kwargs) |
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rawdata: implement `rawdata` for `sqlitestore` too
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
40512
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|
557 |
40326
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|
558 def read(self, node): |
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|
559 return storageutil.filtermetadata(self.revision(node)) |
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parents:
diff
changeset
|
560 |
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parents:
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changeset
|
561 def renamed(self, node): |
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parents:
diff
changeset
|
562 return storageutil.filerevisioncopied(self, node) |
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parents:
diff
changeset
|
563 |
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parents:
diff
changeset
|
564 def cmp(self, node, fulltext): |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
565 return not storageutil.filedataequivalent(self, node, fulltext) |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
566 |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
567 def emitrevisions(self, nodes, nodesorder=None, revisiondata=False, |
40502
a0e7fa019290
storage: update sqlitestore to use the new `deltamode` parameter
Boris Feld <boris.feld@octobus.net>
parents:
40486
diff
changeset
|
568 assumehaveparentrevisions=False, |
a0e7fa019290
storage: update sqlitestore to use the new `deltamode` parameter
Boris Feld <boris.feld@octobus.net>
parents:
40486
diff
changeset
|
569 deltamode=repository.CG_DELTAMODE_STD): |
40418
256b1f0c24e8
changegroup: introduce an explicit linear sorting
Boris Feld <boris.feld@octobus.net>
parents:
40392
diff
changeset
|
570 if nodesorder not in ('nodes', 'storage', 'linear', None): |
40326
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parents:
diff
changeset
|
571 raise error.ProgrammingError('unhandled value for nodesorder: %s' % |
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parents:
diff
changeset
|
572 nodesorder) |
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sqlitestore: file storage backend using SQLite
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parents:
diff
changeset
|
573 |
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parents:
diff
changeset
|
574 nodes = [n for n in nodes if n != nullid] |
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parents:
diff
changeset
|
575 |
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parents:
diff
changeset
|
576 if not nodes: |
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sqlitestore: file storage backend using SQLite
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parents:
diff
changeset
|
577 return |
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diff
changeset
|
578 |
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sqlitestore: file storage backend using SQLite
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parents:
diff
changeset
|
579 # TODO perform in a single query. |
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parents:
diff
changeset
|
580 res = self._db.execute( |
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parents:
diff
changeset
|
581 r'SELECT revnum, deltaid FROM fileindex ' |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
582 r'WHERE pathid=? ' |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
583 r' AND node in (%s)' % (r','.join([r'?'] * len(nodes))), |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
584 tuple([self._pathid] + nodes)) |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
585 |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
586 deltabases = {} |
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sqlitestore: file storage backend using SQLite
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parents:
diff
changeset
|
587 |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
588 for rev, deltaid in res: |
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sqlitestore: file storage backend using SQLite
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parents:
diff
changeset
|
589 res = self._db.execute( |
fed697fa1734
sqlitestore: file storage backend using SQLite
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parents:
diff
changeset
|
590 r'SELECT revnum from fileindex WHERE pathid=? AND deltaid=?', |
fed697fa1734
sqlitestore: file storage backend using SQLite
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parents:
diff
changeset
|
591 (self._pathid, deltaid)) |
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parents:
diff
changeset
|
592 deltabases[rev] = res.fetchone()[0] |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
593 |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
594 # TODO define revdifffn so we can use delta from storage. |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
595 for delta in storageutil.emitrevisions( |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
596 self, nodes, nodesorder, sqliterevisiondelta, |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
597 deltaparentfn=deltabases.__getitem__, |
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sqlitestore: file storage backend using SQLite
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parents:
diff
changeset
|
598 revisiondata=revisiondata, |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
599 assumehaveparentrevisions=assumehaveparentrevisions, |
40502
a0e7fa019290
storage: update sqlitestore to use the new `deltamode` parameter
Boris Feld <boris.feld@octobus.net>
parents:
40486
diff
changeset
|
600 deltamode=deltamode): |
40326
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
601 |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
602 yield delta |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
603 |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
604 # End of ifiledata interface. |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
605 |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
606 # Start of ifilemutation interface. |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
607 |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
608 def add(self, filedata, meta, transaction, linkrev, p1, p2): |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
609 if meta or filedata.startswith(b'\x01\n'): |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
610 filedata = storageutil.packmeta(meta, filedata) |
fed697fa1734
sqlitestore: file storage backend using SQLite
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parents:
diff
changeset
|
611 |
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sqlitestore: file storage backend using SQLite
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parents:
diff
changeset
|
612 return self.addrevision(filedata, transaction, linkrev, p1, p2) |
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parents:
diff
changeset
|
613 |
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parents:
diff
changeset
|
614 def addrevision(self, revisiondata, transaction, linkrev, p1, p2, node=None, |
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parents:
diff
changeset
|
615 flags=0, cachedelta=None): |
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parents:
diff
changeset
|
616 if flags: |
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parents:
diff
changeset
|
617 raise SQLiteStoreError(_('flags not supported on revisions')) |
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parents:
diff
changeset
|
618 |
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parents:
diff
changeset
|
619 validatehash = node is not None |
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parents:
diff
changeset
|
620 node = node or storageutil.hashrevisionsha1(revisiondata, p1, p2) |
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parents:
diff
changeset
|
621 |
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diff
changeset
|
622 if validatehash: |
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parents:
diff
changeset
|
623 self._checkhash(revisiondata, node, p1, p2) |
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parents:
diff
changeset
|
624 |
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parents:
diff
changeset
|
625 if node in self._nodetorev: |
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parents:
diff
changeset
|
626 return node |
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parents:
diff
changeset
|
627 |
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parents:
diff
changeset
|
628 node = self._addrawrevision(node, revisiondata, transaction, linkrev, |
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parents:
diff
changeset
|
629 p1, p2) |
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parents:
diff
changeset
|
630 |
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parents:
diff
changeset
|
631 self._revisioncache[node] = revisiondata |
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parents:
diff
changeset
|
632 return node |
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parents:
diff
changeset
|
633 |
40389
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repository: teach addgroup() to receive data with missing parents
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40387
diff
changeset
|
634 def addgroup(self, deltas, linkmapper, transaction, addrevisioncb=None, |
1b183edbb68e
repository: teach addgroup() to receive data with missing parents
Gregory Szorc <gregory.szorc@gmail.com>
parents:
40387
diff
changeset
|
635 maybemissingparents=False): |
40326
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parents:
diff
changeset
|
636 nodes = [] |
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parents:
diff
changeset
|
637 |
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parents:
diff
changeset
|
638 for node, p1, p2, linknode, deltabase, delta, wireflags in deltas: |
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parents:
diff
changeset
|
639 storeflags = 0 |
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parents:
diff
changeset
|
640 |
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parents:
diff
changeset
|
641 if wireflags & repository.REVISION_FLAG_CENSORED: |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
642 storeflags |= FLAG_CENSORED |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
643 |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
644 if wireflags & ~repository.REVISION_FLAG_CENSORED: |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
645 raise SQLiteStoreError('unhandled revision flag') |
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646 |
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647 if maybemissingparents: |
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|
648 if p1 != nullid and not self.hasnode(p1): |
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|
649 p1 = nullid |
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|
650 storeflags |= FLAG_MISSING_P1 |
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|
651 |
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|
652 if p2 != nullid and not self.hasnode(p2): |
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|
653 p2 = nullid |
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654 storeflags |= FLAG_MISSING_P2 |
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|
655 |
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656 baserev = self.rev(deltabase) |
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|
657 |
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658 # If base is censored, delta must be full replacement in a single |
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|
659 # patch operation. |
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660 if baserev != nullrev and self.iscensored(baserev): |
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661 hlen = struct.calcsize('>lll') |
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662 oldlen = len(self.rawdata(deltabase, _verifyhash=False)) |
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663 newlen = len(delta) - hlen |
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|
664 |
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665 if delta[:hlen] != mdiff.replacediffheader(oldlen, newlen): |
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666 raise error.CensoredBaseError(self._path, |
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|
667 deltabase) |
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|
668 |
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669 if (not (storeflags & FLAG_CENSORED) |
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670 and storageutil.deltaiscensored( |
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671 delta, baserev, lambda x: len(self.rawdata(x)))): |
40326
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672 storeflags |= FLAG_CENSORED |
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|
673 |
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674 linkrev = linkmapper(linknode) |
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|
675 |
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676 nodes.append(node) |
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|
677 |
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|
678 if node in self._revisions: |
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679 # Possibly reset parents to make them proper. |
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680 entry = self._revisions[node] |
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|
681 |
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682 if entry.flags & FLAG_MISSING_P1 and p1 != nullid: |
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|
683 entry.p1node = p1 |
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684 entry.p1rev = self._nodetorev[p1] |
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685 entry.flags &= ~FLAG_MISSING_P1 |
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|
686 |
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|
687 self._db.execute( |
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|
688 r'UPDATE fileindex SET p1rev=?, flags=? ' |
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|
689 r'WHERE id=?', |
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diff
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|
690 (self._nodetorev[p1], entry.flags, entry.rid)) |
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|
691 |
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|
692 if entry.flags & FLAG_MISSING_P2 and p2 != nullid: |
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|
693 entry.p2node = p2 |
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|
694 entry.p2rev = self._nodetorev[p2] |
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|
695 entry.flags &= ~FLAG_MISSING_P2 |
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|
696 |
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|
697 self._db.execute( |
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parents:
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|
698 r'UPDATE fileindex SET p2rev=?, flags=? ' |
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parents:
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diff
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|
699 r'WHERE id=?', |
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|
700 (self._nodetorev[p1], entry.flags, entry.rid)) |
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diff
changeset
|
701 |
40326
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|
702 continue |
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changeset
|
703 |
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|
704 if deltabase == nullid: |
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parents:
diff
changeset
|
705 text = mdiff.patch(b'', delta) |
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parents:
diff
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|
706 storedelta = None |
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changeset
|
707 else: |
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parents:
diff
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|
708 text = None |
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diff
changeset
|
709 storedelta = (deltabase, delta) |
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parents:
diff
changeset
|
710 |
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parents:
diff
changeset
|
711 self._addrawrevision(node, text, transaction, linkrev, p1, p2, |
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parents:
diff
changeset
|
712 storedelta=storedelta, flags=storeflags) |
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parents:
diff
changeset
|
713 |
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parents:
diff
changeset
|
714 if addrevisioncb: |
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parents:
diff
changeset
|
715 addrevisioncb(self, node) |
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parents:
diff
changeset
|
716 |
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diff
changeset
|
717 return nodes |
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parents:
diff
changeset
|
718 |
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parents:
diff
changeset
|
719 def censorrevision(self, tr, censornode, tombstone=b''): |
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parents:
diff
changeset
|
720 tombstone = storageutil.packmeta({b'censored': tombstone}, b'') |
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parents:
diff
changeset
|
721 |
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parents:
diff
changeset
|
722 # This restriction is cargo culted from revlogs and makes no sense for |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
723 # SQLite, since columns can be resized at will. |
42788
5c2e8a661418
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
42776
diff
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|
724 if len(tombstone) > len(self.rawdata(censornode)): |
40326
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parents:
diff
changeset
|
725 raise error.Abort(_('censor tombstone must be no longer than ' |
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parents:
diff
changeset
|
726 'censored data')) |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
727 |
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parents:
diff
changeset
|
728 # We need to replace the censored revision's data with the tombstone. |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
729 # But replacing that data will have implications for delta chains that |
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parents:
diff
changeset
|
730 # reference it. |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
731 # |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
732 # While "better," more complex strategies are possible, we do something |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
733 # simple: we find delta chain children of the censored revision and we |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
734 # replace those incremental deltas with fulltexts of their corresponding |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
735 # revision. Then we delete the now-unreferenced delta and original |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
736 # revision and insert a replacement. |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
737 |
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diff
changeset
|
738 # Find the delta to be censored. |
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sqlitestore: file storage backend using SQLite
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parents:
diff
changeset
|
739 censoreddeltaid = self._db.execute( |
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parents:
diff
changeset
|
740 r'SELECT deltaid FROM fileindex WHERE id=?', |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
741 (self._revisions[censornode].rid,)).fetchone()[0] |
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parents:
diff
changeset
|
742 |
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parents:
diff
changeset
|
743 # Find all its delta chain children. |
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sqlitestore: file storage backend using SQLite
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parents:
diff
changeset
|
744 # TODO once we support storing deltas for !files, we'll need to look |
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parents:
diff
changeset
|
745 # for those delta chains too. |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
746 rows = list(self._db.execute( |
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parents:
diff
changeset
|
747 r'SELECT id, pathid, node FROM fileindex ' |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
748 r'WHERE deltabaseid=? OR deltaid=?', |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
749 (censoreddeltaid, censoreddeltaid))) |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
750 |
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parents:
diff
changeset
|
751 for row in rows: |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
752 rid, pathid, node = row |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
753 |
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parents:
diff
changeset
|
754 fulltext = resolvedeltachain(self._db, pathid, node, {}, {-1: None}, |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
755 zstddctx=self._dctx) |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
756 |
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sqlitestore: file storage backend using SQLite
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parents:
diff
changeset
|
757 deltahash = hashlib.sha1(fulltext).digest() |
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parents:
diff
changeset
|
758 |
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parents:
diff
changeset
|
759 if self._compengine == 'zstd': |
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parents:
diff
changeset
|
760 deltablob = self._cctx.compress(fulltext) |
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parents:
diff
changeset
|
761 compression = COMPRESSION_ZSTD |
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parents:
diff
changeset
|
762 elif self._compengine == 'zlib': |
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parents:
diff
changeset
|
763 deltablob = zlib.compress(fulltext) |
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parents:
diff
changeset
|
764 compression = COMPRESSION_ZLIB |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
765 elif self._compengine == 'none': |
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parents:
diff
changeset
|
766 deltablob = fulltext |
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parents:
diff
changeset
|
767 compression = COMPRESSION_NONE |
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parents:
diff
changeset
|
768 else: |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
769 raise error.ProgrammingError('unhandled compression engine: %s' |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
770 % self._compengine) |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
771 |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
772 if len(deltablob) >= len(fulltext): |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
773 deltablob = fulltext |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
774 compression = COMPRESSION_NONE |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
775 |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
776 deltaid = insertdelta(self._db, compression, deltahash, deltablob) |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
777 |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
778 self._db.execute( |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
779 r'UPDATE fileindex SET deltaid=?, deltabaseid=NULL ' |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
780 r'WHERE id=?', (deltaid, rid)) |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
781 |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
782 # Now create the tombstone delta and replace the delta on the censored |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
783 # node. |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
784 deltahash = hashlib.sha1(tombstone).digest() |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
785 tombstonedeltaid = insertdelta(self._db, COMPRESSION_NONE, |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
786 deltahash, tombstone) |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
787 |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
788 flags = self._revisions[censornode].flags |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
789 flags |= FLAG_CENSORED |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
790 |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
791 self._db.execute( |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
792 r'UPDATE fileindex SET flags=?, deltaid=?, deltabaseid=NULL ' |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
793 r'WHERE pathid=? AND node=?', |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
794 (flags, tombstonedeltaid, self._pathid, censornode)) |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
795 |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
796 self._db.execute( |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
797 r'DELETE FROM delta WHERE id=?', (censoreddeltaid,)) |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
798 |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
799 self._refreshindex() |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
800 self._revisioncache.clear() |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
801 |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
802 def getstrippoint(self, minlink): |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
803 return storageutil.resolvestripinfo(minlink, len(self) - 1, |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
804 [self.rev(n) for n in self.heads()], |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
805 self.linkrev, |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
806 self.parentrevs) |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
807 |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
808 def strip(self, minlink, transaction): |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
809 if not len(self): |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
810 return |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
811 |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
812 rev, _ignored = self.getstrippoint(minlink) |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
813 |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
814 if rev == len(self): |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
815 return |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
816 |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
817 for rev in self.revs(rev): |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
818 self._db.execute( |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
819 r'DELETE FROM fileindex WHERE pathid=? AND node=?', |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
820 (self._pathid, self.node(rev))) |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
821 |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
822 # TODO how should we garbage collect data in delta table? |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
823 |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
824 self._refreshindex() |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
825 |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
826 # End of ifilemutation interface. |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
827 |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
828 # Start of ifilestorage interface. |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
829 |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
830 def files(self): |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
831 return [] |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
832 |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
833 def storageinfo(self, exclusivefiles=False, sharedfiles=False, |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
834 revisionscount=False, trackedsize=False, |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
835 storedsize=False): |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
836 d = {} |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
837 |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
838 if exclusivefiles: |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
839 d['exclusivefiles'] = [] |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
840 |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
841 if sharedfiles: |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
842 # TODO list sqlite file(s) here. |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
843 d['sharedfiles'] = [] |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
844 |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
845 if revisionscount: |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
846 d['revisionscount'] = len(self) |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
847 |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
848 if trackedsize: |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
849 d['trackedsize'] = sum(len(self.revision(node)) |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
850 for node in self._nodetorev) |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
851 |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
852 if storedsize: |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
853 # TODO implement this? |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
854 d['storedsize'] = None |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
855 |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
856 return d |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
857 |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
858 def verifyintegrity(self, state): |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
859 state['skipread'] = set() |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
860 |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
861 for rev in self: |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
862 node = self.node(rev) |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
863 |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
864 try: |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
865 self.revision(node) |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
866 except Exception as e: |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
867 yield sqliteproblem( |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
868 error=_('unpacking %s: %s') % (short(node), e), |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
869 node=node) |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
870 |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
871 state['skipread'].add(node) |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
872 |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
873 # End of ifilestorage interface. |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
874 |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
875 def _checkhash(self, fulltext, node, p1=None, p2=None): |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
876 if p1 is None and p2 is None: |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
877 p1, p2 = self.parents(node) |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
878 |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
879 if node == storageutil.hashrevisionsha1(fulltext, p1, p2): |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
880 return |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
881 |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
882 try: |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
883 del self._revisioncache[node] |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
884 except KeyError: |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
885 pass |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
886 |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
887 if storageutil.iscensoredtext(fulltext): |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
888 raise error.CensoredNodeError(self._path, node, fulltext) |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
889 |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
890 raise SQLiteStoreError(_('integrity check failed on %s') % |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
891 self._path) |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
892 |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
893 def _addrawrevision(self, node, revisiondata, transaction, linkrev, |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
894 p1, p2, storedelta=None, flags=0): |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
895 if self._pathid is None: |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
896 res = self._db.execute( |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
897 r'INSERT INTO filepath (path) VALUES (?)', (self._path,)) |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
898 self._pathid = res.lastrowid |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
899 |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
900 # For simplicity, always store a delta against p1. |
fed697fa1734
sqlitestore: file storage backend using SQLite
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parents:
diff
changeset
|
901 # TODO we need a lot more logic here to make behavior reasonable. |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
902 |
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sqlitestore: file storage backend using SQLite
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parents:
diff
changeset
|
903 if storedelta: |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
904 deltabase, delta = storedelta |
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parents:
diff
changeset
|
905 |
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sqlitestore: file storage backend using SQLite
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parents:
diff
changeset
|
906 if isinstance(deltabase, int): |
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sqlitestore: file storage backend using SQLite
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parents:
diff
changeset
|
907 deltabase = self.node(deltabase) |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
908 |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
909 else: |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
910 assert revisiondata is not None |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
911 deltabase = p1 |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
912 |
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sqlitestore: file storage backend using SQLite
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parents:
diff
changeset
|
913 if deltabase == nullid: |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
914 delta = revisiondata |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
915 else: |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
916 delta = mdiff.textdiff(self.revision(self.rev(deltabase)), |
fed697fa1734
sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
917 revisiondata) |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
918 |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
919 # File index stores a pointer to its delta and the parent delta. |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
920 # The parent delta is stored via a pointer to the fileindex PK. |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
921 if deltabase == nullid: |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
922 baseid = None |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
923 else: |
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sqlitestore: file storage backend using SQLite
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parents:
diff
changeset
|
924 baseid = self._revisions[deltabase].rid |
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parents:
diff
changeset
|
925 |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
926 # Deltas are stored with a hash of their content. This allows |
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parents:
diff
changeset
|
927 # us to de-duplicate. The table is configured to ignore conflicts |
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parents:
diff
changeset
|
928 # and it is faster to just insert and silently noop than to look |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
929 # first. |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
930 deltahash = hashlib.sha1(delta).digest() |
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parents:
diff
changeset
|
931 |
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sqlitestore: file storage backend using SQLite
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parents:
diff
changeset
|
932 if self._compengine == 'zstd': |
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parents:
diff
changeset
|
933 deltablob = self._cctx.compress(delta) |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
934 compression = COMPRESSION_ZSTD |
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parents:
diff
changeset
|
935 elif self._compengine == 'zlib': |
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parents:
diff
changeset
|
936 deltablob = zlib.compress(delta) |
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parents:
diff
changeset
|
937 compression = COMPRESSION_ZLIB |
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parents:
diff
changeset
|
938 elif self._compengine == 'none': |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
939 deltablob = delta |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
940 compression = COMPRESSION_NONE |
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parents:
diff
changeset
|
941 else: |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
942 raise error.ProgrammingError('unhandled compression engine: %s' % |
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parents:
diff
changeset
|
943 self._compengine) |
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sqlitestore: file storage backend using SQLite
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parents:
diff
changeset
|
944 |
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sqlitestore: file storage backend using SQLite
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parents:
diff
changeset
|
945 # Don't store compressed data if it isn't practical. |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
946 if len(deltablob) >= len(delta): |
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parents:
diff
changeset
|
947 deltablob = delta |
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sqlitestore: file storage backend using SQLite
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parents:
diff
changeset
|
948 compression = COMPRESSION_NONE |
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sqlitestore: file storage backend using SQLite
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parents:
diff
changeset
|
949 |
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parents:
diff
changeset
|
950 deltaid = insertdelta(self._db, compression, deltahash, deltablob) |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
951 |
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sqlitestore: file storage backend using SQLite
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parents:
diff
changeset
|
952 rev = len(self) |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
953 |
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parents:
diff
changeset
|
954 if p1 == nullid: |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
955 p1rev = nullrev |
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sqlitestore: file storage backend using SQLite
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parents:
diff
changeset
|
956 else: |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
957 p1rev = self._nodetorev[p1] |
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parents:
diff
changeset
|
958 |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
959 if p2 == nullid: |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
960 p2rev = nullrev |
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sqlitestore: file storage backend using SQLite
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parents:
diff
changeset
|
961 else: |
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sqlitestore: file storage backend using SQLite
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parents:
diff
changeset
|
962 p2rev = self._nodetorev[p2] |
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sqlitestore: file storage backend using SQLite
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parents:
diff
changeset
|
963 |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
964 rid = self._db.execute( |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
965 r'INSERT INTO fileindex (' |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
966 r' pathid, revnum, node, p1rev, p2rev, linkrev, flags, ' |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
967 r' deltaid, deltabaseid) ' |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
968 r' VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)', |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
969 (self._pathid, rev, node, p1rev, p2rev, linkrev, flags, |
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sqlitestore: file storage backend using SQLite
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parents:
diff
changeset
|
970 deltaid, baseid) |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
971 ).lastrowid |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
972 |
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parents:
diff
changeset
|
973 entry = revisionentry( |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
974 rid=rid, |
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parents:
diff
changeset
|
975 rev=rev, |
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parents:
diff
changeset
|
976 node=node, |
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parents:
diff
changeset
|
977 p1rev=p1rev, |
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parents:
diff
changeset
|
978 p2rev=p2rev, |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
979 p1node=p1, |
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parents:
diff
changeset
|
980 p2node=p2, |
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parents:
diff
changeset
|
981 linkrev=linkrev, |
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parents:
diff
changeset
|
982 flags=flags) |
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parents:
diff
changeset
|
983 |
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parents:
diff
changeset
|
984 self._nodetorev[node] = rev |
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parents:
diff
changeset
|
985 self._revtonode[rev] = node |
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parents:
diff
changeset
|
986 self._revisions[node] = entry |
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parents:
diff
changeset
|
987 |
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sqlitestore: file storage backend using SQLite
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parents:
diff
changeset
|
988 return node |
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sqlitestore: file storage backend using SQLite
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
989 |
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parents:
diff
changeset
|
990 class sqliterepository(localrepo.localrepository): |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
991 def cancopy(self): |
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parents:
diff
changeset
|
992 return False |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
993 |
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parents:
diff
changeset
|
994 def transaction(self, *args, **kwargs): |
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sqlitestore: file storage backend using SQLite
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parents:
diff
changeset
|
995 current = self.currenttransaction() |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
996 |
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sqlitestore: file storage backend using SQLite
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parents:
diff
changeset
|
997 tr = super(sqliterepository, self).transaction(*args, **kwargs) |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
998 |
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parents:
diff
changeset
|
999 if current: |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1000 return tr |
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parents:
diff
changeset
|
1001 |
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parents:
diff
changeset
|
1002 self._dbconn.execute(r'BEGIN TRANSACTION') |
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parents:
diff
changeset
|
1003 |
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parents:
diff
changeset
|
1004 def committransaction(_): |
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parents:
diff
changeset
|
1005 self._dbconn.commit() |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1006 |
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parents:
diff
changeset
|
1007 tr.addfinalize('sqlitestore', committransaction) |
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parents:
diff
changeset
|
1008 |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1009 return tr |
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parents:
diff
changeset
|
1010 |
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parents:
diff
changeset
|
1011 @property |
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parents:
diff
changeset
|
1012 def _dbconn(self): |
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parents:
diff
changeset
|
1013 # SQLite connections can only be used on the thread that created |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1014 # them. In most cases, this "just works." However, hgweb uses |
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parents:
diff
changeset
|
1015 # multiple threads. |
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parents:
diff
changeset
|
1016 tid = threading.current_thread().ident |
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parents:
diff
changeset
|
1017 |
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parents:
diff
changeset
|
1018 if self._db: |
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parents:
diff
changeset
|
1019 if self._db[0] == tid: |
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parents:
diff
changeset
|
1020 return self._db[1] |
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parents:
diff
changeset
|
1021 |
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parents:
diff
changeset
|
1022 db = makedb(self.svfs.join('db.sqlite')) |
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parents:
diff
changeset
|
1023 self._db = (tid, db) |
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parents:
diff
changeset
|
1024 |
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parents:
diff
changeset
|
1025 return db |
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parents:
diff
changeset
|
1026 |
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parents:
diff
changeset
|
1027 def makedb(path): |
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parents:
diff
changeset
|
1028 """Construct a database handle for a database at path.""" |
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parents:
diff
changeset
|
1029 |
40486
3b782669561d
py3: make sure we pass sysstr in sqlite3.connect()
Pulkit Goyal <pulkit@yandex-team.ru>
parents:
40392
diff
changeset
|
1030 db = sqlite3.connect(encoding.strfromlocal(path)) |
40326
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parents:
diff
changeset
|
1031 db.text_factory = bytes |
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1032 |
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1033 res = db.execute(r'PRAGMA user_version').fetchone()[0] |
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|
1034 |
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1035 # New database. |
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1036 if res == 0: |
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|
1037 for statement in CREATE_SCHEMA: |
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1038 db.execute(statement) |
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|
1039 |
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|
1040 db.commit() |
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|
1041 |
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1042 elif res == CURRENT_SCHEMA_VERSION: |
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|
1043 pass |
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|
1044 |
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1045 else: |
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1046 raise error.Abort(_('sqlite database has unrecognized version')) |
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|
1047 |
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1048 db.execute(r'PRAGMA journal_mode=WAL') |
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|
1049 |
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1050 return db |
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|
1051 |
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1052 def featuresetup(ui, supported): |
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1053 supported.add(REQUIREMENT) |
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1054 |
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1055 if zstd: |
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1056 supported.add(REQUIREMENT_ZSTD) |
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|
1057 |
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1058 supported.add(REQUIREMENT_ZLIB) |
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1059 supported.add(REQUIREMENT_NONE) |
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1060 supported.add(REQUIREMENT_SHALLOW_FILES) |
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1061 supported.add(repository.NARROW_REQUIREMENT) |
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1062 |
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1063 def newreporequirements(orig, ui, createopts): |
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1064 if createopts['backend'] != 'sqlite': |
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1065 return orig(ui, createopts) |
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|
1066 |
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1067 # This restriction can be lifted once we have more confidence. |
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1068 if 'sharedrepo' in createopts: |
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1069 raise error.Abort(_('shared repositories not supported with SQLite ' |
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|
1070 'store')) |
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|
1071 |
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1072 # This filtering is out of an abundance of caution: we want to ensure |
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1073 # we honor creation options and we do that by annotating exactly the |
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1074 # creation options we recognize. |
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1075 known = { |
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1076 'narrowfiles', |
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1077 'backend', |
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1078 'shallowfilestore', |
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1079 } |
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1080 |
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1081 unsupported = set(createopts) - known |
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1082 if unsupported: |
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1083 raise error.Abort(_('SQLite store does not support repo creation ' |
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1084 'option: %s') % ', '.join(sorted(unsupported))) |
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|
1085 |
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1086 # Since we're a hybrid store that still relies on revlogs, we fall back |
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1087 # to using the revlogv1 backend's storage requirements then adding our |
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1088 # own requirement. |
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1089 createopts['backend'] = 'revlogv1' |
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1090 requirements = orig(ui, createopts) |
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1091 requirements.add(REQUIREMENT) |
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1092 |
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1093 compression = ui.config('storage', 'sqlite.compression') |
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|
1094 |
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|
1095 if compression == 'zstd' and not zstd: |
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|
1096 raise error.Abort(_('storage.sqlite.compression set to "zstd" but ' |
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1097 'zstandard compression not available to this ' |
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|
1098 'Mercurial install')) |
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|
1099 |
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1100 if compression == 'zstd': |
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1101 requirements.add(REQUIREMENT_ZSTD) |
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1102 elif compression == 'zlib': |
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1103 requirements.add(REQUIREMENT_ZLIB) |
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1104 elif compression == 'none': |
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1105 requirements.add(REQUIREMENT_NONE) |
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|
1106 else: |
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1107 raise error.Abort(_('unknown compression engine defined in ' |
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|
1108 'storage.sqlite.compression: %s') % compression) |
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1109 |
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1110 if createopts.get('shallowfilestore'): |
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1111 requirements.add(REQUIREMENT_SHALLOW_FILES) |
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|
1112 |
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1113 return requirements |
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|
1114 |
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|
1115 @interfaceutil.implementer(repository.ilocalrepositoryfilestorage) |
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1116 class sqlitefilestorage(object): |
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1117 """Repository file storage backed by SQLite.""" |
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1118 def file(self, path): |
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1119 if path[0] == b'/': |
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1120 path = path[1:] |
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1121 |
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1122 if REQUIREMENT_ZSTD in self.requirements: |
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1123 compression = 'zstd' |
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1124 elif REQUIREMENT_ZLIB in self.requirements: |
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1125 compression = 'zlib' |
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1126 elif REQUIREMENT_NONE in self.requirements: |
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1127 compression = 'none' |
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1128 else: |
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1129 raise error.Abort(_('unable to determine what compression engine ' |
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1130 'to use for SQLite storage')) |
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1131 |
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1132 return sqlitefilestore(self._dbconn, path, compression) |
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1133 |
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1134 def makefilestorage(orig, requirements, features, **kwargs): |
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1135 """Produce a type conforming to ``ilocalrepositoryfilestorage``.""" |
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1136 if REQUIREMENT in requirements: |
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1137 if REQUIREMENT_SHALLOW_FILES in requirements: |
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1138 features.add(repository.REPO_FEATURE_SHALLOW_FILE_STORAGE) |
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1139 |
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1140 return sqlitefilestorage |
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1141 else: |
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1142 return orig(requirements=requirements, features=features, **kwargs) |
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1143 |
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1144 def makemain(orig, ui, requirements, **kwargs): |
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1145 if REQUIREMENT in requirements: |
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1146 if REQUIREMENT_ZSTD in requirements and not zstd: |
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1147 raise error.Abort(_('repository uses zstandard compression, which ' |
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1148 'is not available to this Mercurial install')) |
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1149 |
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1150 return sqliterepository |
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1151 |
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1152 return orig(requirements=requirements, **kwargs) |
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1153 |
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1154 def verifierinit(orig, self, *args, **kwargs): |
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1155 orig(self, *args, **kwargs) |
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1156 |
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1157 # We don't care that files in the store don't align with what is |
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1158 # advertised. So suppress these warnings. |
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1159 self.warnorphanstorefiles = False |
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1160 |
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1161 def extsetup(ui): |
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1162 localrepo.featuresetupfuncs.add(featuresetup) |
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1163 extensions.wrapfunction(localrepo, 'newreporequirements', |
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1164 newreporequirements) |
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1165 extensions.wrapfunction(localrepo, 'makefilestorage', |
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1166 makefilestorage) |
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1167 extensions.wrapfunction(localrepo, 'makemain', |
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1168 makemain) |
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1169 extensions.wrapfunction(verify.verifier, '__init__', |
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1170 verifierinit) |
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1171 |
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1172 def reposetup(ui, repo): |
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1173 if isinstance(repo, sqliterepository): |
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1174 repo._db = None |
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1175 |
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1176 # TODO check for bundlerepository? |