Mercurial > hg
annotate hgext/remotefilelog/repack.py @ 41671:34ae00a14783
py3: use raw strings and %d for formatting
Before the string compares on Python 3 failed because we were
comparing bytes to str. Using raw strings ensures we are
always comparing str.
While we're here, also use %d to format integers.
Differential Revision: https://phab.mercurial-scm.org/D5925
author | Gregory Szorc <gregory.szorc@gmail.com> |
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date | Sun, 10 Feb 2019 14:04:08 -0800 |
parents | 876494fd967d |
children | 118c1ec4f31b |
rev | line source |
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1 from __future__ import absolute_import |
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2 |
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3 import os |
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4 import time |
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5 |
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6 from mercurial.i18n import _ |
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7 from mercurial.node import ( |
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8 nullid, |
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9 short, |
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10 ) |
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11 from mercurial import ( |
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12 encoding, |
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13 error, |
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14 mdiff, |
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15 policy, |
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16 pycompat, |
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17 scmutil, |
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18 util, |
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19 vfs, |
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20 ) |
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21 from mercurial.utils import procutil |
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22 from . import ( |
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23 constants, |
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24 contentstore, |
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25 datapack, |
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26 extutil, |
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27 historypack, |
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28 metadatastore, |
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29 shallowutil, |
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30 ) |
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31 |
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32 osutil = policy.importmod(r'osutil') |
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33 |
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34 class RepackAlreadyRunning(error.Abort): |
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35 pass |
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36 |
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37 def backgroundrepack(repo, incremental=True, packsonly=False): |
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38 cmd = [procutil.hgexecutable(), '-R', repo.origroot, 'repack'] |
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39 msg = _("(running background repack)\n") |
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40 if incremental: |
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41 cmd.append('--incremental') |
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42 msg = _("(running background incremental repack)\n") |
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43 if packsonly: |
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44 cmd.append('--packsonly') |
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45 repo.ui.warn(msg) |
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46 procutil.runbgcommand(cmd, encoding.environ) |
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47 |
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48 def fullrepack(repo, options=None): |
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49 """If ``packsonly`` is True, stores creating only loose objects are skipped. |
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50 """ |
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51 if util.safehasattr(repo, 'shareddatastores'): |
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52 datasource = contentstore.unioncontentstore( |
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53 *repo.shareddatastores) |
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54 historysource = metadatastore.unionmetadatastore( |
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55 *repo.sharedhistorystores, |
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56 allowincomplete=True) |
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57 |
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58 packpath = shallowutil.getcachepackpath( |
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59 repo, |
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60 constants.FILEPACK_CATEGORY) |
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61 _runrepack(repo, datasource, historysource, packpath, |
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62 constants.FILEPACK_CATEGORY, options=options) |
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63 |
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64 if util.safehasattr(repo.manifestlog, 'datastore'): |
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65 localdata, shareddata = _getmanifeststores(repo) |
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66 lpackpath, ldstores, lhstores = localdata |
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67 spackpath, sdstores, shstores = shareddata |
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68 |
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69 # Repack the shared manifest store |
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70 datasource = contentstore.unioncontentstore(*sdstores) |
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71 historysource = metadatastore.unionmetadatastore( |
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72 *shstores, |
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73 allowincomplete=True) |
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74 _runrepack(repo, datasource, historysource, spackpath, |
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75 constants.TREEPACK_CATEGORY, options=options) |
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76 |
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77 # Repack the local manifest store |
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78 datasource = contentstore.unioncontentstore( |
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79 *ldstores, |
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80 allowincomplete=True) |
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81 historysource = metadatastore.unionmetadatastore( |
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82 *lhstores, |
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83 allowincomplete=True) |
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84 _runrepack(repo, datasource, historysource, lpackpath, |
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85 constants.TREEPACK_CATEGORY, options=options) |
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86 |
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87 def incrementalrepack(repo, options=None): |
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88 """This repacks the repo by looking at the distribution of pack files in the |
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89 repo and performing the most minimal repack to keep the repo in good shape. |
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90 """ |
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91 if util.safehasattr(repo, 'shareddatastores'): |
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92 packpath = shallowutil.getcachepackpath( |
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93 repo, |
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94 constants.FILEPACK_CATEGORY) |
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95 _incrementalrepack(repo, |
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96 repo.shareddatastores, |
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97 repo.sharedhistorystores, |
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98 packpath, |
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99 constants.FILEPACK_CATEGORY, |
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100 options=options) |
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101 |
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102 if util.safehasattr(repo.manifestlog, 'datastore'): |
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103 localdata, shareddata = _getmanifeststores(repo) |
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104 lpackpath, ldstores, lhstores = localdata |
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105 spackpath, sdstores, shstores = shareddata |
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106 |
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107 # Repack the shared manifest store |
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108 _incrementalrepack(repo, |
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109 sdstores, |
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110 shstores, |
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111 spackpath, |
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112 constants.TREEPACK_CATEGORY, |
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113 options=options) |
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114 |
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115 # Repack the local manifest store |
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116 _incrementalrepack(repo, |
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117 ldstores, |
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118 lhstores, |
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119 lpackpath, |
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120 constants.TREEPACK_CATEGORY, |
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121 allowincompletedata=True, |
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122 options=options) |
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123 |
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124 def _getmanifeststores(repo): |
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125 shareddatastores = repo.manifestlog.shareddatastores |
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126 localdatastores = repo.manifestlog.localdatastores |
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127 sharedhistorystores = repo.manifestlog.sharedhistorystores |
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128 localhistorystores = repo.manifestlog.localhistorystores |
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129 |
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130 sharedpackpath = shallowutil.getcachepackpath(repo, |
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131 constants.TREEPACK_CATEGORY) |
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132 localpackpath = shallowutil.getlocalpackpath(repo.svfs.vfs.base, |
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133 constants.TREEPACK_CATEGORY) |
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134 |
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135 return ((localpackpath, localdatastores, localhistorystores), |
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136 (sharedpackpath, shareddatastores, sharedhistorystores)) |
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137 |
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138 def _topacks(packpath, files, constructor): |
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139 paths = list(os.path.join(packpath, p) for p in files) |
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140 packs = list(constructor(p) for p in paths) |
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141 return packs |
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142 |
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143 def _deletebigpacks(repo, folder, files): |
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144 """Deletes packfiles that are bigger than ``packs.maxpacksize``. |
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145 |
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146 Returns ``files` with the removed files omitted.""" |
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147 maxsize = repo.ui.configbytes("packs", "maxpacksize") |
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148 if maxsize <= 0: |
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149 return files |
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150 |
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151 # This only considers datapacks today, but we could broaden it to include |
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152 # historypacks. |
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153 VALIDEXTS = [".datapack", ".dataidx"] |
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154 |
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155 # Either an oversize index or datapack will trigger cleanup of the whole |
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156 # pack: |
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157 oversized = set([os.path.splitext(path)[0] for path, ftype, stat in files |
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158 if (stat.st_size > maxsize and (os.path.splitext(path)[1] |
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159 in VALIDEXTS))]) |
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160 |
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161 for rootfname in oversized: |
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162 rootpath = os.path.join(folder, rootfname) |
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163 for ext in VALIDEXTS: |
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164 path = rootpath + ext |
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165 repo.ui.debug('removing oversize packfile %s (%s)\n' % |
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166 (path, util.bytecount(os.stat(path).st_size))) |
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167 os.unlink(path) |
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168 return [row for row in files if os.path.basename(row[0]) not in oversized] |
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169 |
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170 def _incrementalrepack(repo, datastore, historystore, packpath, category, |
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171 allowincompletedata=False, options=None): |
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172 shallowutil.mkstickygroupdir(repo.ui, packpath) |
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173 |
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174 files = osutil.listdir(packpath, stat=True) |
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175 files = _deletebigpacks(repo, packpath, files) |
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176 datapacks = _topacks(packpath, |
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177 _computeincrementaldatapack(repo.ui, files), |
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178 datapack.datapack) |
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179 datapacks.extend(s for s in datastore |
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180 if not isinstance(s, datapack.datapackstore)) |
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181 |
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182 historypacks = _topacks(packpath, |
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183 _computeincrementalhistorypack(repo.ui, files), |
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184 historypack.historypack) |
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185 historypacks.extend(s for s in historystore |
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186 if not isinstance(s, historypack.historypackstore)) |
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187 |
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188 # ``allhistory{files,packs}`` contains all known history packs, even ones we |
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189 # don't plan to repack. They are used during the datapack repack to ensure |
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190 # good ordering of nodes. |
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191 allhistoryfiles = _allpackfileswithsuffix(files, historypack.PACKSUFFIX, |
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192 historypack.INDEXSUFFIX) |
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193 allhistorypacks = _topacks(packpath, |
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194 (f for f, mode, stat in allhistoryfiles), |
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195 historypack.historypack) |
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196 allhistorypacks.extend(s for s in historystore |
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197 if not isinstance(s, historypack.historypackstore)) |
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198 _runrepack(repo, |
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199 contentstore.unioncontentstore( |
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200 *datapacks, |
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201 allowincomplete=allowincompletedata), |
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202 metadatastore.unionmetadatastore( |
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203 *historypacks, |
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204 allowincomplete=True), |
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205 packpath, category, |
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206 fullhistory=metadatastore.unionmetadatastore( |
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207 *allhistorypacks, |
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208 allowincomplete=True), |
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209 options=options) |
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210 |
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211 def _computeincrementaldatapack(ui, files): |
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212 opts = { |
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213 'gencountlimit' : ui.configint( |
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214 'remotefilelog', 'data.gencountlimit'), |
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215 'generations' : ui.configlist( |
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216 'remotefilelog', 'data.generations'), |
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217 'maxrepackpacks' : ui.configint( |
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218 'remotefilelog', 'data.maxrepackpacks'), |
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219 'repackmaxpacksize' : ui.configbytes( |
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220 'remotefilelog', 'data.repackmaxpacksize'), |
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221 'repacksizelimit' : ui.configbytes( |
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222 'remotefilelog', 'data.repacksizelimit'), |
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223 } |
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224 |
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225 packfiles = _allpackfileswithsuffix( |
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226 files, datapack.PACKSUFFIX, datapack.INDEXSUFFIX) |
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227 return _computeincrementalpack(packfiles, opts) |
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228 |
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229 def _computeincrementalhistorypack(ui, files): |
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230 opts = { |
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231 'gencountlimit' : ui.configint( |
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232 'remotefilelog', 'history.gencountlimit'), |
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233 'generations' : ui.configlist( |
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234 'remotefilelog', 'history.generations', ['100MB']), |
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235 'maxrepackpacks' : ui.configint( |
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236 'remotefilelog', 'history.maxrepackpacks'), |
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237 'repackmaxpacksize' : ui.configbytes( |
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238 'remotefilelog', 'history.repackmaxpacksize', '400MB'), |
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239 'repacksizelimit' : ui.configbytes( |
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240 'remotefilelog', 'history.repacksizelimit'), |
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241 } |
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242 |
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243 packfiles = _allpackfileswithsuffix( |
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244 files, historypack.PACKSUFFIX, historypack.INDEXSUFFIX) |
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245 return _computeincrementalpack(packfiles, opts) |
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246 |
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247 def _allpackfileswithsuffix(files, packsuffix, indexsuffix): |
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248 result = [] |
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249 fileset = set(fn for fn, mode, stat in files) |
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250 for filename, mode, stat in files: |
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251 if not filename.endswith(packsuffix): |
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252 continue |
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253 |
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254 prefix = filename[:-len(packsuffix)] |
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255 |
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256 # Don't process a pack if it doesn't have an index. |
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257 if (prefix + indexsuffix) not in fileset: |
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258 continue |
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259 result.append((prefix, mode, stat)) |
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260 |
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261 return result |
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262 |
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263 def _computeincrementalpack(files, opts): |
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264 """Given a set of pack files along with the configuration options, this |
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265 function computes the list of files that should be packed as part of an |
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266 incremental repack. |
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267 |
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268 It tries to strike a balance between keeping incremental repacks cheap (i.e. |
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269 packing small things when possible, and rolling the packs up to the big ones |
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270 over time). |
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271 """ |
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272 |
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273 limits = list(sorted((util.sizetoint(s) for s in opts['generations']), |
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274 reverse=True)) |
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275 limits.append(0) |
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276 |
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277 # Group the packs by generation (i.e. by size) |
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278 generations = [] |
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279 for i in pycompat.xrange(len(limits)): |
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280 generations.append([]) |
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281 |
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282 sizes = {} |
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283 for prefix, mode, stat in files: |
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284 size = stat.st_size |
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285 if size > opts['repackmaxpacksize']: |
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286 continue |
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287 |
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288 sizes[prefix] = size |
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289 for i, limit in enumerate(limits): |
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290 if size > limit: |
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291 generations[i].append(prefix) |
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292 break |
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293 |
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294 # Steps for picking what packs to repack: |
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295 # 1. Pick the largest generation with > gencountlimit pack files. |
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296 # 2. Take the smallest three packs. |
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297 # 3. While total-size-of-packs < repacksizelimit: add another pack |
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298 |
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299 # Find the largest generation with more than gencountlimit packs |
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300 genpacks = [] |
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301 for i, limit in enumerate(limits): |
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302 if len(generations[i]) > opts['gencountlimit']: |
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303 # Sort to be smallest last, for easy popping later |
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304 genpacks.extend(sorted(generations[i], reverse=True, |
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305 key=lambda x: sizes[x])) |
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306 break |
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307 |
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308 # Take as many packs from the generation as we can |
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309 chosenpacks = genpacks[-3:] |
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310 genpacks = genpacks[:-3] |
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311 repacksize = sum(sizes[n] for n in chosenpacks) |
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312 while (repacksize < opts['repacksizelimit'] and genpacks and |
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313 len(chosenpacks) < opts['maxrepackpacks']): |
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314 chosenpacks.append(genpacks.pop()) |
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315 repacksize += sizes[chosenpacks[-1]] |
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316 |
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317 return chosenpacks |
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318 |
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319 def _runrepack(repo, data, history, packpath, category, fullhistory=None, |
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320 options=None): |
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321 shallowutil.mkstickygroupdir(repo.ui, packpath) |
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322 |
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323 def isold(repo, filename, node): |
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324 """Check if the file node is older than a limit. |
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325 Unless a limit is specified in the config the default limit is taken. |
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326 """ |
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327 filectx = repo.filectx(filename, fileid=node) |
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328 filetime = repo[filectx.linkrev()].date() |
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329 |
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330 ttl = repo.ui.configint('remotefilelog', 'nodettl') |
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331 |
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332 limit = time.time() - ttl |
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333 return filetime[0] < limit |
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334 |
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335 garbagecollect = repo.ui.configbool('remotefilelog', 'gcrepack') |
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336 if not fullhistory: |
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337 fullhistory = history |
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338 packer = repacker(repo, data, history, fullhistory, category, |
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339 gc=garbagecollect, isold=isold, options=options) |
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340 |
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341 with datapack.mutabledatapack(repo.ui, packpath, version=2) as dpack: |
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342 with historypack.mutablehistorypack(repo.ui, packpath) as hpack: |
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343 try: |
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344 packer.run(dpack, hpack) |
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345 except error.LockHeld: |
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346 raise RepackAlreadyRunning(_("skipping repack - another repack " |
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347 "is already running")) |
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348 |
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349 def keepset(repo, keyfn, lastkeepkeys=None): |
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350 """Computes a keepset which is not garbage collected. |
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351 'keyfn' is a function that maps filename, node to a unique key. |
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352 'lastkeepkeys' is an optional argument and if provided the keepset |
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353 function updates lastkeepkeys with more keys and returns the result. |
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354 """ |
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355 if not lastkeepkeys: |
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356 keepkeys = set() |
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357 else: |
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358 keepkeys = lastkeepkeys |
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359 |
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360 # We want to keep: |
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361 # 1. Working copy parent |
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362 # 2. Draft commits |
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363 # 3. Parents of draft commits |
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364 # 4. Pullprefetch and bgprefetchrevs revsets if specified |
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365 revs = ['.', 'draft()', 'parents(draft())'] |
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366 prefetchrevs = repo.ui.config('remotefilelog', 'pullprefetch', None) |
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367 if prefetchrevs: |
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368 revs.append('(%s)' % prefetchrevs) |
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369 prefetchrevs = repo.ui.config('remotefilelog', 'bgprefetchrevs', None) |
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370 if prefetchrevs: |
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371 revs.append('(%s)' % prefetchrevs) |
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372 revs = '+'.join(revs) |
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373 |
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374 revs = ['sort((%s), "topo")' % revs] |
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375 keep = scmutil.revrange(repo, revs) |
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376 |
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377 processed = set() |
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378 lastmanifest = None |
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379 |
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380 # process the commits in toposorted order starting from the oldest |
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381 for r in reversed(keep._list): |
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382 if repo[r].p1().rev() in processed: |
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383 # if the direct parent has already been processed |
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384 # then we only need to process the delta |
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385 m = repo[r].manifestctx().readdelta() |
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386 else: |
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387 # otherwise take the manifest and diff it |
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388 # with the previous manifest if one exists |
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389 if lastmanifest: |
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390 m = repo[r].manifest().diff(lastmanifest) |
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391 else: |
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392 m = repo[r].manifest() |
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393 lastmanifest = repo[r].manifest() |
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394 processed.add(r) |
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395 |
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396 # populate keepkeys with keys from the current manifest |
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397 if type(m) is dict: |
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398 # m is a result of diff of two manifests and is a dictionary that |
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399 # maps filename to ((newnode, newflag), (oldnode, oldflag)) tuple |
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400 for filename, diff in m.iteritems(): |
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401 if diff[0][0] is not None: |
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402 keepkeys.add(keyfn(filename, diff[0][0])) |
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403 else: |
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404 # m is a manifest object |
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405 for filename, filenode in m.iteritems(): |
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406 keepkeys.add(keyfn(filename, filenode)) |
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407 |
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408 return keepkeys |
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409 |
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410 class repacker(object): |
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411 """Class for orchestrating the repack of data and history information into a |
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412 new format. |
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413 """ |
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414 def __init__(self, repo, data, history, fullhistory, category, gc=False, |
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415 isold=None, options=None): |
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416 self.repo = repo |
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417 self.data = data |
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418 self.history = history |
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419 self.fullhistory = fullhistory |
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420 self.unit = constants.getunits(category) |
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421 self.garbagecollect = gc |
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422 self.options = options |
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423 if self.garbagecollect: |
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424 if not isold: |
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425 raise ValueError("Function 'isold' is not properly specified") |
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426 # use (filename, node) tuple as a keepset key |
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427 self.keepkeys = keepset(repo, lambda f, n : (f, n)) |
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428 self.isold = isold |
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429 |
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430 def run(self, targetdata, targethistory): |
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431 ledger = repackledger() |
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432 |
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433 with extutil.flock(repacklockvfs(self.repo).join("repacklock"), |
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434 _('repacking %s') % self.repo.origroot, timeout=0): |
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435 self.repo.hook('prerepack') |
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436 |
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437 # Populate ledger from source |
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438 self.data.markledger(ledger, options=self.options) |
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439 self.history.markledger(ledger, options=self.options) |
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440 |
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441 # Run repack |
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442 self.repackdata(ledger, targetdata) |
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443 self.repackhistory(ledger, targethistory) |
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444 |
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445 # Call cleanup on each source |
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446 for source in ledger.sources: |
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447 source.cleanup(ledger) |
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448 |
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449 def _chainorphans(self, ui, filename, nodes, orphans, deltabases): |
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450 """Reorderes ``orphans`` into a single chain inside ``nodes`` and |
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451 ``deltabases``. |
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452 |
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453 We often have orphan entries (nodes without a base that aren't |
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454 referenced by other nodes -- i.e., part of a chain) due to gaps in |
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455 history. Rather than store them as individual fulltexts, we prefer to |
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456 insert them as one chain sorted by size. |
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457 """ |
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458 if not orphans: |
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459 return nodes |
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460 |
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461 def getsize(node, default=0): |
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462 meta = self.data.getmeta(filename, node) |
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463 if constants.METAKEYSIZE in meta: |
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464 return meta[constants.METAKEYSIZE] |
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465 else: |
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466 return default |
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467 |
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468 # Sort orphans by size; biggest first is preferred, since it's more |
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469 # likely to be the newest version assuming files grow over time. |
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470 # (Sort by node first to ensure the sort is stable.) |
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471 orphans = sorted(orphans) |
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472 orphans = list(sorted(orphans, key=getsize, reverse=True)) |
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473 if ui.debugflag: |
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474 ui.debug("%s: orphan chain: %s\n" % (filename, |
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475 ", ".join([short(s) for s in orphans]))) |
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476 |
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477 # Create one contiguous chain and reassign deltabases. |
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478 for i, node in enumerate(orphans): |
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479 if i == 0: |
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480 deltabases[node] = (nullid, 0) |
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481 else: |
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482 parent = orphans[i - 1] |
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483 deltabases[node] = (parent, deltabases[parent][1] + 1) |
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484 nodes = [n for n in nodes if n not in orphans] |
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485 nodes += orphans |
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486 return nodes |
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487 |
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488 def repackdata(self, ledger, target): |
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489 ui = self.repo.ui |
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490 maxchainlen = ui.configint('packs', 'maxchainlen', 1000) |
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491 |
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492 byfile = {} |
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493 for entry in ledger.entries.itervalues(): |
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494 if entry.datasource: |
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495 byfile.setdefault(entry.filename, {})[entry.node] = entry |
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496 |
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497 count = 0 |
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498 repackprogress = ui.makeprogress(_("repacking data"), unit=self.unit, |
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499 total=len(byfile)) |
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500 for filename, entries in sorted(byfile.iteritems()): |
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501 repackprogress.update(count) |
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502 |
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503 ancestors = {} |
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504 nodes = list(node for node in entries) |
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505 nohistory = [] |
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506 buildprogress = ui.makeprogress(_("building history"), unit='nodes', |
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507 total=len(nodes)) |
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508 for i, node in enumerate(nodes): |
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509 if node in ancestors: |
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510 continue |
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511 buildprogress.update(i) |
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512 try: |
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513 ancestors.update(self.fullhistory.getancestors(filename, |
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514 node, known=ancestors)) |
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515 except KeyError: |
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516 # Since we're packing data entries, we may not have the |
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517 # corresponding history entries for them. It's not a big |
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518 # deal, but the entries won't be delta'd perfectly. |
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519 nohistory.append(node) |
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520 buildprogress.complete() |
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521 |
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522 # Order the nodes children first, so we can produce reverse deltas |
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523 orderednodes = list(reversed(self._toposort(ancestors))) |
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524 if len(nohistory) > 0: |
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525 ui.debug('repackdata: %d nodes without history\n' % |
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526 len(nohistory)) |
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527 orderednodes.extend(sorted(nohistory)) |
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528 |
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529 # Filter orderednodes to just the nodes we want to serialize (it |
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530 # currently also has the edge nodes' ancestors). |
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531 orderednodes = list(filter(lambda node: node in nodes, |
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532 orderednodes)) |
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533 |
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534 # Garbage collect old nodes: |
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535 if self.garbagecollect: |
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536 neworderednodes = [] |
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537 for node in orderednodes: |
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538 # If the node is old and is not in the keepset, we skip it, |
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539 # and mark as garbage collected |
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540 if ((filename, node) not in self.keepkeys and |
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541 self.isold(self.repo, filename, node)): |
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542 entries[node].gced = True |
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543 continue |
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544 neworderednodes.append(node) |
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545 orderednodes = neworderednodes |
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546 |
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547 # Compute delta bases for nodes: |
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548 deltabases = {} |
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549 nobase = set() |
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550 referenced = set() |
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551 nodes = set(nodes) |
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552 processprogress = ui.makeprogress(_("processing nodes"), |
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553 unit='nodes', |
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554 total=len(orderednodes)) |
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555 for i, node in enumerate(orderednodes): |
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556 processprogress.update(i) |
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557 # Find delta base |
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558 # TODO: allow delta'ing against most recent descendant instead |
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559 # of immediate child |
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560 deltatuple = deltabases.get(node, None) |
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561 if deltatuple is None: |
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562 deltabase, chainlen = nullid, 0 |
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563 deltabases[node] = (nullid, 0) |
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564 nobase.add(node) |
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565 else: |
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566 deltabase, chainlen = deltatuple |
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567 referenced.add(deltabase) |
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568 |
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569 # Use available ancestor information to inform our delta choices |
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570 ancestorinfo = ancestors.get(node) |
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571 if ancestorinfo: |
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572 p1, p2, linknode, copyfrom = ancestorinfo |
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573 |
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574 # The presence of copyfrom means we're at a point where the |
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575 # file was copied from elsewhere. So don't attempt to do any |
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576 # deltas with the other file. |
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577 if copyfrom: |
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578 p1 = nullid |
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579 |
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580 if chainlen < maxchainlen: |
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581 # Record this child as the delta base for its parents. |
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582 # This may be non optimal, since the parents may have |
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583 # many children, and this will only choose the last one. |
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584 # TODO: record all children and try all deltas to find |
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585 # best |
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586 if p1 != nullid: |
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587 deltabases[p1] = (node, chainlen + 1) |
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588 if p2 != nullid: |
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589 deltabases[p2] = (node, chainlen + 1) |
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590 |
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591 # experimental config: repack.chainorphansbysize |
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592 if ui.configbool('repack', 'chainorphansbysize'): |
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593 orphans = nobase - referenced |
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594 orderednodes = self._chainorphans(ui, filename, orderednodes, |
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595 orphans, deltabases) |
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596 |
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597 # Compute deltas and write to the pack |
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598 for i, node in enumerate(orderednodes): |
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599 deltabase, chainlen = deltabases[node] |
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600 # Compute delta |
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601 # TODO: Optimize the deltachain fetching. Since we're |
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602 # iterating over the different version of the file, we may |
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603 # be fetching the same deltachain over and over again. |
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604 if deltabase != nullid: |
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605 deltaentry = self.data.getdelta(filename, node) |
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606 delta, deltabasename, origdeltabase, meta = deltaentry |
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607 size = meta.get(constants.METAKEYSIZE) |
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608 if (deltabasename != filename or origdeltabase != deltabase |
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609 or size is None): |
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610 deltabasetext = self.data.get(filename, deltabase) |
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611 original = self.data.get(filename, node) |
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612 size = len(original) |
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613 delta = mdiff.textdiff(deltabasetext, original) |
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614 else: |
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615 delta = self.data.get(filename, node) |
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616 size = len(delta) |
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617 meta = self.data.getmeta(filename, node) |
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618 |
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619 # TODO: don't use the delta if it's larger than the fulltext |
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620 if constants.METAKEYSIZE not in meta: |
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621 meta[constants.METAKEYSIZE] = size |
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622 target.add(filename, node, deltabase, delta, meta) |
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623 |
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624 entries[node].datarepacked = True |
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625 |
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626 processprogress.complete() |
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627 count += 1 |
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628 |
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629 repackprogress.complete() |
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630 target.close(ledger=ledger) |
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631 |
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632 def repackhistory(self, ledger, target): |
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633 ui = self.repo.ui |
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634 |
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635 byfile = {} |
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636 for entry in ledger.entries.itervalues(): |
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637 if entry.historysource: |
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638 byfile.setdefault(entry.filename, {})[entry.node] = entry |
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639 |
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640 progress = ui.makeprogress(_("repacking history"), unit=self.unit, |
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641 total=len(byfile)) |
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642 for filename, entries in sorted(byfile.iteritems()): |
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643 ancestors = {} |
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644 nodes = list(node for node in entries) |
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645 |
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646 for node in nodes: |
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647 if node in ancestors: |
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648 continue |
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649 ancestors.update(self.history.getancestors(filename, node, |
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650 known=ancestors)) |
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|
651 |
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652 # Order the nodes children first |
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653 orderednodes = reversed(self._toposort(ancestors)) |
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654 |
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|
655 # Write to the pack |
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656 dontprocess = set() |
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657 for node in orderednodes: |
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658 p1, p2, linknode, copyfrom = ancestors[node] |
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|
659 |
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changeset
|
660 # If the node is marked dontprocess, but it's also in the |
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661 # explicit entries set, that means the node exists both in this |
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662 # file and in another file that was copied to this file. |
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663 # Usually this happens if the file was copied to another file, |
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664 # then the copy was deleted, then reintroduced without copy |
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665 # metadata. The original add and the new add have the same hash |
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666 # since the content is identical and the parents are null. |
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667 if node in dontprocess and node not in entries: |
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668 # If copyfrom == filename, it means the copy history |
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669 # went to come other file, then came back to this one, so we |
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670 # should continue processing it. |
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671 if p1 != nullid and copyfrom != filename: |
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672 dontprocess.add(p1) |
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673 if p2 != nullid: |
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674 dontprocess.add(p2) |
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|
675 continue |
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|
676 |
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|
677 if copyfrom: |
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Augie Fackler <augie@google.com>
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|
678 dontprocess.add(p1) |
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|
679 |
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|
680 target.add(filename, node, p1, p2, linknode, copyfrom) |
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|
681 |
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|
682 if node in entries: |
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683 entries[node].historyrepacked = True |
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|
684 |
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|
685 progress.increment() |
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|
686 |
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|
687 progress.complete() |
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|
688 target.close(ledger=ledger) |
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diff
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|
689 |
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parents:
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|
690 def _toposort(self, ancestors): |
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691 def parentfunc(node): |
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|
692 p1, p2, linknode, copyfrom = ancestors[node] |
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|
693 parents = [] |
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|
694 if p1 != nullid: |
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|
695 parents.append(p1) |
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|
696 if p2 != nullid: |
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|
697 parents.append(p2) |
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|
698 return parents |
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parents:
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|
699 |
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parents:
diff
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|
700 sortednodes = shallowutil.sortnodes(ancestors.keys(), parentfunc) |
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|
701 return sortednodes |
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|
702 |
3a333a582d7b
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Augie Fackler <augie@google.com>
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|
703 class repackledger(object): |
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parents:
diff
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|
704 """Storage for all the bookkeeping that happens during a repack. It contains |
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Augie Fackler <augie@google.com>
parents:
diff
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|
705 the list of revisions being repacked, what happened to each revision, and |
3a333a582d7b
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parents:
diff
changeset
|
706 which source store contained which revision originally (for later cleanup). |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
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|
707 """ |
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Augie Fackler <augie@google.com>
parents:
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|
708 def __init__(self): |
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|
709 self.entries = {} |
3a333a582d7b
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Augie Fackler <augie@google.com>
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diff
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|
710 self.sources = {} |
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parents:
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|
711 self.created = set() |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
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|
712 |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
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|
713 def markdataentry(self, source, filename, node): |
3a333a582d7b
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parents:
diff
changeset
|
714 """Mark the given filename+node revision as having a data rev in the |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
715 given source. |
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Augie Fackler <augie@google.com>
parents:
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|
716 """ |
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parents:
diff
changeset
|
717 entry = self._getorcreateentry(filename, node) |
3a333a582d7b
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parents:
diff
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|
718 entry.datasource = True |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
719 entries = self.sources.get(source) |
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Augie Fackler <augie@google.com>
parents:
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|
720 if not entries: |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
721 entries = set() |
3a333a582d7b
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parents:
diff
changeset
|
722 self.sources[source] = entries |
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
723 entries.add(entry) |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
724 |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
725 def markhistoryentry(self, source, filename, node): |
3a333a582d7b
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parents:
diff
changeset
|
726 """Mark the given filename+node revision as having a history rev in the |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
727 given source. |
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
728 """ |
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parents:
diff
changeset
|
729 entry = self._getorcreateentry(filename, node) |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
730 entry.historysource = True |
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
731 entries = self.sources.get(source) |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
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changeset
|
732 if not entries: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
733 entries = set() |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
734 self.sources[source] = entries |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
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|
735 entries.add(entry) |
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
736 |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
737 def _getorcreateentry(self, filename, node): |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
738 key = (filename, node) |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
739 value = self.entries.get(key) |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
740 if not value: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
741 value = repackentry(filename, node) |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
742 self.entries[key] = value |
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
743 |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
744 return value |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
745 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
746 def addcreated(self, value): |
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
747 self.created.add(value) |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
748 |
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
749 class repackentry(object): |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
750 """Simple class representing a single revision entry in the repackledger. |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
751 """ |
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1419f780207c
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Augie Fackler <augie@google.com>
parents:
40506
diff
changeset
|
752 __slots__ = (r'filename', r'node', r'datasource', r'historysource', |
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Augie Fackler <augie@google.com>
parents:
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diff
changeset
|
753 r'datarepacked', r'historyrepacked', r'gced') |
40495
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754 def __init__(self, filename, node): |
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755 self.filename = filename |
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756 self.node = node |
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757 # If the revision has a data entry in the source |
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758 self.datasource = False |
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759 # If the revision has a history entry in the source |
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760 self.historysource = False |
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761 # If the revision's data entry was repacked into the repack target |
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762 self.datarepacked = False |
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763 # If the revision's history entry was repacked into the repack target |
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764 self.historyrepacked = False |
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765 # If garbage collected |
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766 self.gced = False |
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767 |
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768 def repacklockvfs(repo): |
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769 if util.safehasattr(repo, 'name'): |
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770 # Lock in the shared cache so repacks across multiple copies of the same |
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771 # repo are coordinated. |
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772 sharedcachepath = shallowutil.getcachepackpath( |
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773 repo, |
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774 constants.FILEPACK_CATEGORY) |
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775 return vfs.vfs(sharedcachepath) |
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776 else: |
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777 return repo.svfs |