Mercurial > hg
annotate hgext/remotefilelog/repack.py @ 40526:1419f780207c
remotefilelog: fix various minor py3 problems
# skip-blame b prefixes and pycompat.long, nothing remotely interesting
Differential Revision: https://phab.mercurial-scm.org/D5223
author | Augie Fackler <augie@google.com> |
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date | Mon, 05 Nov 2018 17:48:23 -0500 |
parents | 10c10da14c5d |
children | 9769e0f6ffe0 |
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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 if util.safehasattr(util, '_hgexecutable'): |
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38 # Before 5be286db |
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39 _hgexecutable = util.hgexecutable |
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40 else: |
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41 from mercurial.utils import procutil |
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42 _hgexecutable = procutil.hgexecutable |
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43 |
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44 def backgroundrepack(repo, incremental=True, packsonly=False): |
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45 cmd = [_hgexecutable(), '-R', repo.origroot, 'repack'] |
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46 msg = _("(running background repack)\n") |
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47 if incremental: |
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48 cmd.append('--incremental') |
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49 msg = _("(running background incremental repack)\n") |
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50 if packsonly: |
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51 cmd.append('--packsonly') |
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52 repo.ui.warn(msg) |
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53 procutil.runbgcommand(cmd, encoding.environ) |
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54 |
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55 def fullrepack(repo, options=None): |
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56 """If ``packsonly`` is True, stores creating only loose objects are skipped. |
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57 """ |
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58 if util.safehasattr(repo, 'shareddatastores'): |
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59 datasource = contentstore.unioncontentstore( |
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60 *repo.shareddatastores) |
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61 historysource = metadatastore.unionmetadatastore( |
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62 *repo.sharedhistorystores, |
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63 allowincomplete=True) |
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64 |
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65 packpath = shallowutil.getcachepackpath( |
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66 repo, |
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67 constants.FILEPACK_CATEGORY) |
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68 _runrepack(repo, datasource, historysource, packpath, |
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69 constants.FILEPACK_CATEGORY, options=options) |
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70 |
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71 if util.safehasattr(repo.manifestlog, 'datastore'): |
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72 localdata, shareddata = _getmanifeststores(repo) |
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73 lpackpath, ldstores, lhstores = localdata |
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74 spackpath, sdstores, shstores = shareddata |
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75 |
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76 # Repack the shared manifest store |
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77 datasource = contentstore.unioncontentstore(*sdstores) |
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78 historysource = metadatastore.unionmetadatastore( |
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79 *shstores, |
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80 allowincomplete=True) |
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81 _runrepack(repo, datasource, historysource, spackpath, |
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82 constants.TREEPACK_CATEGORY, options=options) |
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83 |
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84 # Repack the local manifest store |
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85 datasource = contentstore.unioncontentstore( |
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86 *ldstores, |
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87 allowincomplete=True) |
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88 historysource = metadatastore.unionmetadatastore( |
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89 *lhstores, |
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90 allowincomplete=True) |
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91 _runrepack(repo, datasource, historysource, lpackpath, |
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92 constants.TREEPACK_CATEGORY, options=options) |
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93 |
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94 def incrementalrepack(repo, options=None): |
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95 """This repacks the repo by looking at the distribution of pack files in the |
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96 repo and performing the most minimal repack to keep the repo in good shape. |
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97 """ |
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98 if util.safehasattr(repo, 'shareddatastores'): |
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99 packpath = shallowutil.getcachepackpath( |
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100 repo, |
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101 constants.FILEPACK_CATEGORY) |
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102 _incrementalrepack(repo, |
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103 repo.shareddatastores, |
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104 repo.sharedhistorystores, |
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105 packpath, |
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106 constants.FILEPACK_CATEGORY, |
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107 options=options) |
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108 |
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109 if util.safehasattr(repo.manifestlog, 'datastore'): |
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110 localdata, shareddata = _getmanifeststores(repo) |
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111 lpackpath, ldstores, lhstores = localdata |
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112 spackpath, sdstores, shstores = shareddata |
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113 |
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114 # Repack the shared manifest store |
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115 _incrementalrepack(repo, |
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116 sdstores, |
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117 shstores, |
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118 spackpath, |
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119 constants.TREEPACK_CATEGORY, |
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120 options=options) |
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121 |
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122 # Repack the local manifest store |
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123 _incrementalrepack(repo, |
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124 ldstores, |
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125 lhstores, |
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126 lpackpath, |
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127 constants.TREEPACK_CATEGORY, |
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128 allowincompletedata=True, |
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129 options=options) |
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130 |
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131 def _getmanifeststores(repo): |
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132 shareddatastores = repo.manifestlog.shareddatastores |
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133 localdatastores = repo.manifestlog.localdatastores |
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134 sharedhistorystores = repo.manifestlog.sharedhistorystores |
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135 localhistorystores = repo.manifestlog.localhistorystores |
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136 |
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137 sharedpackpath = shallowutil.getcachepackpath(repo, |
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138 constants.TREEPACK_CATEGORY) |
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139 localpackpath = shallowutil.getlocalpackpath(repo.svfs.vfs.base, |
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140 constants.TREEPACK_CATEGORY) |
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141 |
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142 return ((localpackpath, localdatastores, localhistorystores), |
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143 (sharedpackpath, shareddatastores, sharedhistorystores)) |
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144 |
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145 def _topacks(packpath, files, constructor): |
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146 paths = list(os.path.join(packpath, p) for p in files) |
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147 packs = list(constructor(p) for p in paths) |
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148 return packs |
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149 |
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150 def _deletebigpacks(repo, folder, files): |
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151 """Deletes packfiles that are bigger than ``packs.maxpacksize``. |
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152 |
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153 Returns ``files` with the removed files omitted.""" |
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154 maxsize = repo.ui.configbytes("packs", "maxpacksize") |
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155 if maxsize <= 0: |
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156 return files |
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157 |
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158 # This only considers datapacks today, but we could broaden it to include |
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159 # historypacks. |
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160 VALIDEXTS = [".datapack", ".dataidx"] |
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161 |
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162 # Either an oversize index or datapack will trigger cleanup of the whole |
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163 # pack: |
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164 oversized = set([os.path.splitext(path)[0] for path, ftype, stat in files |
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165 if (stat.st_size > maxsize and (os.path.splitext(path)[1] |
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166 in VALIDEXTS))]) |
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167 |
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168 for rootfname in oversized: |
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169 rootpath = os.path.join(folder, rootfname) |
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170 for ext in VALIDEXTS: |
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171 path = rootpath + ext |
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172 repo.ui.debug('removing oversize packfile %s (%s)\n' % |
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173 (path, util.bytecount(os.stat(path).st_size))) |
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174 os.unlink(path) |
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175 return [row for row in files if os.path.basename(row[0]) not in oversized] |
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176 |
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177 def _incrementalrepack(repo, datastore, historystore, packpath, category, |
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178 allowincompletedata=False, options=None): |
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179 shallowutil.mkstickygroupdir(repo.ui, packpath) |
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180 |
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181 files = osutil.listdir(packpath, stat=True) |
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182 files = _deletebigpacks(repo, packpath, files) |
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183 datapacks = _topacks(packpath, |
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184 _computeincrementaldatapack(repo.ui, files), |
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185 datapack.datapack) |
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186 datapacks.extend(s for s in datastore |
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187 if not isinstance(s, datapack.datapackstore)) |
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188 |
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189 historypacks = _topacks(packpath, |
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190 _computeincrementalhistorypack(repo.ui, files), |
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191 historypack.historypack) |
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192 historypacks.extend(s for s in historystore |
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193 if not isinstance(s, historypack.historypackstore)) |
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194 |
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195 # ``allhistory{files,packs}`` contains all known history packs, even ones we |
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196 # don't plan to repack. They are used during the datapack repack to ensure |
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197 # good ordering of nodes. |
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198 allhistoryfiles = _allpackfileswithsuffix(files, historypack.PACKSUFFIX, |
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199 historypack.INDEXSUFFIX) |
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200 allhistorypacks = _topacks(packpath, |
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201 (f for f, mode, stat in allhistoryfiles), |
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202 historypack.historypack) |
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203 allhistorypacks.extend(s for s in historystore |
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204 if not isinstance(s, historypack.historypackstore)) |
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205 _runrepack(repo, |
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206 contentstore.unioncontentstore( |
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207 *datapacks, |
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208 allowincomplete=allowincompletedata), |
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209 metadatastore.unionmetadatastore( |
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210 *historypacks, |
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211 allowincomplete=True), |
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212 packpath, category, |
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213 fullhistory=metadatastore.unionmetadatastore( |
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214 *allhistorypacks, |
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215 allowincomplete=True), |
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216 options=options) |
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217 |
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218 def _computeincrementaldatapack(ui, files): |
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219 opts = { |
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220 'gencountlimit' : ui.configint( |
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221 'remotefilelog', 'data.gencountlimit'), |
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222 'generations' : ui.configlist( |
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223 'remotefilelog', 'data.generations'), |
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224 'maxrepackpacks' : ui.configint( |
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225 'remotefilelog', 'data.maxrepackpacks'), |
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226 'repackmaxpacksize' : ui.configbytes( |
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227 'remotefilelog', 'data.repackmaxpacksize'), |
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228 'repacksizelimit' : ui.configbytes( |
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229 'remotefilelog', 'data.repacksizelimit'), |
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230 } |
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231 |
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232 packfiles = _allpackfileswithsuffix( |
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233 files, datapack.PACKSUFFIX, datapack.INDEXSUFFIX) |
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234 return _computeincrementalpack(packfiles, opts) |
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235 |
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236 def _computeincrementalhistorypack(ui, files): |
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237 opts = { |
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238 'gencountlimit' : ui.configint( |
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239 'remotefilelog', 'history.gencountlimit'), |
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240 'generations' : ui.configlist( |
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241 'remotefilelog', 'history.generations', ['100MB']), |
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242 'maxrepackpacks' : ui.configint( |
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243 'remotefilelog', 'history.maxrepackpacks'), |
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244 'repackmaxpacksize' : ui.configbytes( |
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245 'remotefilelog', 'history.repackmaxpacksize', '400MB'), |
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246 'repacksizelimit' : ui.configbytes( |
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247 'remotefilelog', 'history.repacksizelimit'), |
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248 } |
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249 |
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250 packfiles = _allpackfileswithsuffix( |
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251 files, historypack.PACKSUFFIX, historypack.INDEXSUFFIX) |
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252 return _computeincrementalpack(packfiles, opts) |
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253 |
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254 def _allpackfileswithsuffix(files, packsuffix, indexsuffix): |
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255 result = [] |
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256 fileset = set(fn for fn, mode, stat in files) |
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257 for filename, mode, stat in files: |
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258 if not filename.endswith(packsuffix): |
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259 continue |
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260 |
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261 prefix = filename[:-len(packsuffix)] |
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262 |
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263 # Don't process a pack if it doesn't have an index. |
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264 if (prefix + indexsuffix) not in fileset: |
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265 continue |
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266 result.append((prefix, mode, stat)) |
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267 |
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268 return result |
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269 |
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270 def _computeincrementalpack(files, opts): |
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271 """Given a set of pack files along with the configuration options, this |
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272 function computes the list of files that should be packed as part of an |
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273 incremental repack. |
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274 |
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275 It tries to strike a balance between keeping incremental repacks cheap (i.e. |
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276 packing small things when possible, and rolling the packs up to the big ones |
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277 over time). |
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278 """ |
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279 |
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280 limits = list(sorted((util.sizetoint(s) for s in opts['generations']), |
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281 reverse=True)) |
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282 limits.append(0) |
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283 |
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284 # Group the packs by generation (i.e. by size) |
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285 generations = [] |
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286 for i in pycompat.xrange(len(limits)): |
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287 generations.append([]) |
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288 |
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289 sizes = {} |
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290 for prefix, mode, stat in files: |
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291 size = stat.st_size |
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292 if size > opts['repackmaxpacksize']: |
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293 continue |
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294 |
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295 sizes[prefix] = size |
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296 for i, limit in enumerate(limits): |
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297 if size > limit: |
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298 generations[i].append(prefix) |
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299 break |
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300 |
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301 # Steps for picking what packs to repack: |
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302 # 1. Pick the largest generation with > gencountlimit pack files. |
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303 # 2. Take the smallest three packs. |
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304 # 3. While total-size-of-packs < repacksizelimit: add another pack |
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305 |
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306 # Find the largest generation with more than gencountlimit packs |
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307 genpacks = [] |
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308 for i, limit in enumerate(limits): |
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309 if len(generations[i]) > opts['gencountlimit']: |
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310 # Sort to be smallest last, for easy popping later |
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311 genpacks.extend(sorted(generations[i], reverse=True, |
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312 key=lambda x: sizes[x])) |
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313 break |
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314 |
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315 # Take as many packs from the generation as we can |
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316 chosenpacks = genpacks[-3:] |
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317 genpacks = genpacks[:-3] |
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318 repacksize = sum(sizes[n] for n in chosenpacks) |
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319 while (repacksize < opts['repacksizelimit'] and genpacks and |
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320 len(chosenpacks) < opts['maxrepackpacks']): |
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321 chosenpacks.append(genpacks.pop()) |
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322 repacksize += sizes[chosenpacks[-1]] |
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323 |
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324 return chosenpacks |
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325 |
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326 def _runrepack(repo, data, history, packpath, category, fullhistory=None, |
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327 options=None): |
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328 shallowutil.mkstickygroupdir(repo.ui, packpath) |
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329 |
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330 def isold(repo, filename, node): |
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331 """Check if the file node is older than a limit. |
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332 Unless a limit is specified in the config the default limit is taken. |
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333 """ |
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334 filectx = repo.filectx(filename, fileid=node) |
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335 filetime = repo[filectx.linkrev()].date() |
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336 |
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337 ttl = repo.ui.configint('remotefilelog', 'nodettl') |
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338 |
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339 limit = time.time() - ttl |
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340 return filetime[0] < limit |
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341 |
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342 garbagecollect = repo.ui.configbool('remotefilelog', 'gcrepack') |
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343 if not fullhistory: |
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344 fullhistory = history |
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345 packer = repacker(repo, data, history, fullhistory, category, |
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346 gc=garbagecollect, isold=isold, options=options) |
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347 |
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348 with datapack.mutabledatapack(repo.ui, packpath, version=2) as dpack: |
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349 with historypack.mutablehistorypack(repo.ui, packpath) as hpack: |
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350 try: |
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351 packer.run(dpack, hpack) |
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352 except error.LockHeld: |
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353 raise RepackAlreadyRunning(_("skipping repack - another repack " |
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354 "is already running")) |
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355 |
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356 def keepset(repo, keyfn, lastkeepkeys=None): |
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357 """Computes a keepset which is not garbage collected. |
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358 'keyfn' is a function that maps filename, node to a unique key. |
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359 'lastkeepkeys' is an optional argument and if provided the keepset |
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360 function updates lastkeepkeys with more keys and returns the result. |
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361 """ |
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362 if not lastkeepkeys: |
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363 keepkeys = set() |
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364 else: |
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365 keepkeys = lastkeepkeys |
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366 |
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367 # We want to keep: |
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368 # 1. Working copy parent |
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369 # 2. Draft commits |
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370 # 3. Parents of draft commits |
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371 # 4. Pullprefetch and bgprefetchrevs revsets if specified |
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372 revs = ['.', 'draft()', 'parents(draft())'] |
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373 prefetchrevs = repo.ui.config('remotefilelog', 'pullprefetch', None) |
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374 if prefetchrevs: |
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375 revs.append('(%s)' % prefetchrevs) |
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376 prefetchrevs = repo.ui.config('remotefilelog', 'bgprefetchrevs', None) |
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377 if prefetchrevs: |
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378 revs.append('(%s)' % prefetchrevs) |
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379 revs = '+'.join(revs) |
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380 |
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381 revs = ['sort((%s), "topo")' % revs] |
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382 keep = scmutil.revrange(repo, revs) |
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383 |
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384 processed = set() |
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385 lastmanifest = None |
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386 |
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387 # process the commits in toposorted order starting from the oldest |
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388 for r in reversed(keep._list): |
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389 if repo[r].p1().rev() in processed: |
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390 # if the direct parent has already been processed |
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391 # then we only need to process the delta |
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392 m = repo[r].manifestctx().readdelta() |
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393 else: |
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394 # otherwise take the manifest and diff it |
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395 # with the previous manifest if one exists |
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396 if lastmanifest: |
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397 m = repo[r].manifest().diff(lastmanifest) |
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398 else: |
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399 m = repo[r].manifest() |
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400 lastmanifest = repo[r].manifest() |
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401 processed.add(r) |
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402 |
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403 # populate keepkeys with keys from the current manifest |
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404 if type(m) is dict: |
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405 # m is a result of diff of two manifests and is a dictionary that |
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406 # maps filename to ((newnode, newflag), (oldnode, oldflag)) tuple |
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407 for filename, diff in m.iteritems(): |
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408 if diff[0][0] is not None: |
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409 keepkeys.add(keyfn(filename, diff[0][0])) |
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410 else: |
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411 # m is a manifest object |
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412 for filename, filenode in m.iteritems(): |
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413 keepkeys.add(keyfn(filename, filenode)) |
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414 |
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415 return keepkeys |
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416 |
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417 class repacker(object): |
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418 """Class for orchestrating the repack of data and history information into a |
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419 new format. |
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420 """ |
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421 def __init__(self, repo, data, history, fullhistory, category, gc=False, |
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422 isold=None, options=None): |
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423 self.repo = repo |
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424 self.data = data |
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425 self.history = history |
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426 self.fullhistory = fullhistory |
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427 self.unit = constants.getunits(category) |
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428 self.garbagecollect = gc |
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429 self.options = options |
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430 if self.garbagecollect: |
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431 if not isold: |
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432 raise ValueError("Function 'isold' is not properly specified") |
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433 # use (filename, node) tuple as a keepset key |
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434 self.keepkeys = keepset(repo, lambda f, n : (f, n)) |
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435 self.isold = isold |
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436 |
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437 def run(self, targetdata, targethistory): |
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438 ledger = repackledger() |
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439 |
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440 with extutil.flock(repacklockvfs(self.repo).join("repacklock"), |
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441 _('repacking %s') % self.repo.origroot, timeout=0): |
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442 self.repo.hook('prerepack') |
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443 |
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444 # Populate ledger from source |
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445 self.data.markledger(ledger, options=self.options) |
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446 self.history.markledger(ledger, options=self.options) |
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447 |
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448 # Run repack |
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449 self.repackdata(ledger, targetdata) |
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450 self.repackhistory(ledger, targethistory) |
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451 |
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452 # Call cleanup on each source |
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453 for source in ledger.sources: |
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454 source.cleanup(ledger) |
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455 |
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456 def _chainorphans(self, ui, filename, nodes, orphans, deltabases): |
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457 """Reorderes ``orphans`` into a single chain inside ``nodes`` and |
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458 ``deltabases``. |
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459 |
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460 We often have orphan entries (nodes without a base that aren't |
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461 referenced by other nodes -- i.e., part of a chain) due to gaps in |
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462 history. Rather than store them as individual fulltexts, we prefer to |
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463 insert them as one chain sorted by size. |
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464 """ |
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465 if not orphans: |
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466 return nodes |
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467 |
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468 def getsize(node, default=0): |
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469 meta = self.data.getmeta(filename, node) |
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470 if constants.METAKEYSIZE in meta: |
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471 return meta[constants.METAKEYSIZE] |
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472 else: |
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473 return default |
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474 |
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475 # Sort orphans by size; biggest first is preferred, since it's more |
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476 # likely to be the newest version assuming files grow over time. |
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477 # (Sort by node first to ensure the sort is stable.) |
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478 orphans = sorted(orphans) |
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479 orphans = list(sorted(orphans, key=getsize, reverse=True)) |
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480 if ui.debugflag: |
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481 ui.debug("%s: orphan chain: %s\n" % (filename, |
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482 ", ".join([short(s) for s in orphans]))) |
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483 |
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484 # Create one contiguous chain and reassign deltabases. |
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485 for i, node in enumerate(orphans): |
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486 if i == 0: |
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487 deltabases[node] = (nullid, 0) |
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488 else: |
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489 parent = orphans[i - 1] |
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490 deltabases[node] = (parent, deltabases[parent][1] + 1) |
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491 nodes = filter(lambda node: node not in orphans, nodes) |
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492 nodes += orphans |
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493 return nodes |
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494 |
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495 def repackdata(self, ledger, target): |
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496 ui = self.repo.ui |
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497 maxchainlen = ui.configint('packs', 'maxchainlen', 1000) |
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498 |
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499 byfile = {} |
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500 for entry in ledger.entries.itervalues(): |
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501 if entry.datasource: |
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502 byfile.setdefault(entry.filename, {})[entry.node] = entry |
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503 |
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504 count = 0 |
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505 for filename, entries in sorted(byfile.iteritems()): |
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506 ui.progress(_("repacking data"), count, unit=self.unit, |
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507 total=len(byfile)) |
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508 |
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509 ancestors = {} |
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510 nodes = list(node for node in entries.iterkeys()) |
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511 nohistory = [] |
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512 for i, node in enumerate(nodes): |
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513 if node in ancestors: |
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514 continue |
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515 ui.progress(_("building history"), i, unit='nodes', |
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516 total=len(nodes)) |
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517 try: |
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518 ancestors.update(self.fullhistory.getancestors(filename, |
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519 node, known=ancestors)) |
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520 except KeyError: |
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521 # Since we're packing data entries, we may not have the |
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522 # corresponding history entries for them. It's not a big |
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523 # deal, but the entries won't be delta'd perfectly. |
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524 nohistory.append(node) |
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525 ui.progress(_("building history"), None) |
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526 |
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527 # Order the nodes children first, so we can produce reverse deltas |
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528 orderednodes = list(reversed(self._toposort(ancestors))) |
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529 if len(nohistory) > 0: |
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530 ui.debug('repackdata: %d nodes without history\n' % |
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531 len(nohistory)) |
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532 orderednodes.extend(sorted(nohistory)) |
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533 |
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534 # Filter orderednodes to just the nodes we want to serialize (it |
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535 # currently also has the edge nodes' ancestors). |
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536 orderednodes = filter(lambda node: node in nodes, orderednodes) |
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537 |
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538 # Garbage collect old nodes: |
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539 if self.garbagecollect: |
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540 neworderednodes = [] |
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541 for node in orderednodes: |
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542 # If the node is old and is not in the keepset, we skip it, |
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543 # and mark as garbage collected |
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544 if ((filename, node) not in self.keepkeys and |
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545 self.isold(self.repo, filename, node)): |
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546 entries[node].gced = True |
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547 continue |
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548 neworderednodes.append(node) |
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549 orderednodes = neworderednodes |
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550 |
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551 # Compute delta bases for nodes: |
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552 deltabases = {} |
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553 nobase = set() |
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554 referenced = set() |
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555 nodes = set(nodes) |
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556 for i, node in enumerate(orderednodes): |
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557 ui.progress(_("processing nodes"), i, unit='nodes', |
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558 total=len(orderednodes)) |
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559 # Find delta base |
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560 # TODO: allow delta'ing against most recent descendant instead |
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561 # of immediate child |
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562 deltatuple = deltabases.get(node, None) |
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563 if deltatuple is None: |
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564 deltabase, chainlen = nullid, 0 |
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565 deltabases[node] = (nullid, 0) |
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566 nobase.add(node) |
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567 else: |
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568 deltabase, chainlen = deltatuple |
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569 referenced.add(deltabase) |
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570 |
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571 # Use available ancestor information to inform our delta choices |
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572 ancestorinfo = ancestors.get(node) |
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573 if ancestorinfo: |
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574 p1, p2, linknode, copyfrom = ancestorinfo |
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575 |
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576 # The presence of copyfrom means we're at a point where the |
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577 # file was copied from elsewhere. So don't attempt to do any |
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578 # deltas with the other file. |
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579 if copyfrom: |
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580 p1 = nullid |
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581 |
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582 if chainlen < maxchainlen: |
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583 # Record this child as the delta base for its parents. |
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584 # This may be non optimal, since the parents may have |
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585 # many children, and this will only choose the last one. |
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586 # TODO: record all children and try all deltas to find |
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587 # best |
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588 if p1 != nullid: |
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589 deltabases[p1] = (node, chainlen + 1) |
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590 if p2 != nullid: |
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591 deltabases[p2] = (node, chainlen + 1) |
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592 |
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593 # experimental config: repack.chainorphansbysize |
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594 if ui.configbool('repack', 'chainorphansbysize'): |
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595 orphans = nobase - referenced |
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596 orderednodes = self._chainorphans(ui, filename, orderednodes, |
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597 orphans, deltabases) |
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|
598 |
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599 # Compute deltas and write to the pack |
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600 for i, node in enumerate(orderednodes): |
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601 deltabase, chainlen = deltabases[node] |
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602 # Compute delta |
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603 # TODO: Optimize the deltachain fetching. Since we're |
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604 # iterating over the different version of the file, we may |
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|
605 # be fetching the same deltachain over and over again. |
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606 meta = None |
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607 if deltabase != nullid: |
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608 deltaentry = self.data.getdelta(filename, node) |
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609 delta, deltabasename, origdeltabase, meta = deltaentry |
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610 size = meta.get(constants.METAKEYSIZE) |
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611 if (deltabasename != filename or origdeltabase != deltabase |
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612 or size is None): |
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613 deltabasetext = self.data.get(filename, deltabase) |
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614 original = self.data.get(filename, node) |
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615 size = len(original) |
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616 delta = mdiff.textdiff(deltabasetext, original) |
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617 else: |
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618 delta = self.data.get(filename, node) |
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619 size = len(delta) |
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620 meta = self.data.getmeta(filename, node) |
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621 |
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622 # TODO: don't use the delta if it's larger than the fulltext |
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623 if constants.METAKEYSIZE not in meta: |
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624 meta[constants.METAKEYSIZE] = size |
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625 target.add(filename, node, deltabase, delta, meta) |
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626 |
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627 entries[node].datarepacked = True |
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628 |
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629 ui.progress(_("processing nodes"), None) |
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630 count += 1 |
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631 |
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632 ui.progress(_("repacking data"), None) |
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633 target.close(ledger=ledger) |
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634 |
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635 def repackhistory(self, ledger, target): |
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636 ui = self.repo.ui |
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637 |
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638 byfile = {} |
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639 for entry in ledger.entries.itervalues(): |
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640 if entry.historysource: |
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641 byfile.setdefault(entry.filename, {})[entry.node] = entry |
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642 |
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643 count = 0 |
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|
644 for filename, entries in sorted(byfile.iteritems()): |
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645 ancestors = {} |
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646 nodes = list(node for node in entries.iterkeys()) |
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|
647 |
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648 for node in nodes: |
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649 if node in ancestors: |
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650 continue |
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651 ancestors.update(self.history.getancestors(filename, node, |
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652 known=ancestors)) |
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|
653 |
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654 # Order the nodes children first |
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655 orderednodes = reversed(self._toposort(ancestors)) |
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|
656 |
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657 # Write to the pack |
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658 dontprocess = set() |
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659 for node in orderednodes: |
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660 p1, p2, linknode, copyfrom = ancestors[node] |
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|
661 |
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662 # If the node is marked dontprocess, but it's also in the |
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663 # explicit entries set, that means the node exists both in this |
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664 # file and in another file that was copied to this file. |
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665 # Usually this happens if the file was copied to another file, |
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666 # then the copy was deleted, then reintroduced without copy |
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667 # metadata. The original add and the new add have the same hash |
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668 # since the content is identical and the parents are null. |
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|
669 if node in dontprocess and node not in entries: |
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670 # If copyfrom == filename, it means the copy history |
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671 # went to come other file, then came back to this one, so we |
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672 # should continue processing it. |
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673 if p1 != nullid and copyfrom != filename: |
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|
674 dontprocess.add(p1) |
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675 if p2 != nullid: |
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|
676 dontprocess.add(p2) |
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|
677 continue |
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|
678 |
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|
679 if copyfrom: |
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diff
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|
680 dontprocess.add(p1) |
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diff
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|
681 |
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|
682 target.add(filename, node, p1, p2, linknode, copyfrom) |
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|
683 |
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|
684 if node in entries: |
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|
685 entries[node].historyrepacked = True |
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diff
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|
686 |
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|
687 count += 1 |
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|
688 ui.progress(_("repacking history"), count, unit=self.unit, |
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|
689 total=len(byfile)) |
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diff
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|
690 |
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|
691 ui.progress(_("repacking history"), None) |
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|
692 target.close(ledger=ledger) |
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parents:
diff
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|
693 |
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|
694 def _toposort(self, ancestors): |
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|
695 def parentfunc(node): |
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parents:
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|
696 p1, p2, linknode, copyfrom = ancestors[node] |
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|
697 parents = [] |
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|
698 if p1 != nullid: |
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parents:
diff
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|
699 parents.append(p1) |
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Augie Fackler <augie@google.com>
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diff
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|
700 if p2 != nullid: |
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Augie Fackler <augie@google.com>
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|
701 parents.append(p2) |
3a333a582d7b
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diff
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|
702 return parents |
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diff
changeset
|
703 |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
704 sortednodes = shallowutil.sortnodes(ancestors.keys(), parentfunc) |
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Augie Fackler <augie@google.com>
parents:
diff
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|
705 return sortednodes |
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
706 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
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diff
changeset
|
707 class repackledger(object): |
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
708 """Storage for all the bookkeeping that happens during a repack. It contains |
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
709 the list of revisions being repacked, what happened to each revision, and |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
710 which source store contained which revision originally (for later cleanup). |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
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|
711 """ |
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
712 def __init__(self): |
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Augie Fackler <augie@google.com>
parents:
diff
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|
713 self.entries = {} |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
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|
714 self.sources = {} |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
715 self.created = set() |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
716 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
717 def markdataentry(self, source, filename, node): |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
718 """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
|
719 given source. |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
720 """ |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
721 entry = self._getorcreateentry(filename, node) |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
722 entry.datasource = True |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
723 entries = self.sources.get(source) |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
724 if not entries: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
725 entries = set() |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
726 self.sources[source] = entries |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
727 entries.add(entry) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
728 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
729 def markhistoryentry(self, source, filename, node): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
730 """Mark the given filename+node revision as having a history rev in the |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
731 given source. |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
732 """ |
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
733 entry = self._getorcreateentry(filename, node) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
734 entry.historysource = True |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
735 entries = self.sources.get(source) |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
736 if not entries: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
737 entries = set() |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
738 self.sources[source] = entries |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
739 entries.add(entry) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
740 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
741 def _getorcreateentry(self, filename, node): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
742 key = (filename, node) |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
743 value = self.entries.get(key) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
744 if not value: |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
745 value = repackentry(filename, node) |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
746 self.entries[key] = value |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
747 |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
748 return value |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
749 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
750 def addcreated(self, value): |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
751 self.created.add(value) |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
changeset
|
752 |
3a333a582d7b
remotefilelog: import pruned-down remotefilelog extension from hg-experimental
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
753 class repackentry(object): |
3a333a582d7b
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Augie Fackler <augie@google.com>
parents:
diff
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754 """Simple class representing a single revision entry in the repackledger. |
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755 """ |
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756 __slots__ = (r'filename', r'node', r'datasource', r'historysource', |
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757 r'datarepacked', r'historyrepacked', r'gced') |
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758 def __init__(self, filename, node): |
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759 self.filename = filename |
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760 self.node = node |
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761 # If the revision has a data entry in the source |
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762 self.datasource = False |
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763 # If the revision has a history entry in the source |
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764 self.historysource = False |
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765 # If the revision's data entry was repacked into the repack target |
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766 self.datarepacked = False |
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767 # If the revision's history entry was repacked into the repack target |
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768 self.historyrepacked = False |
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769 # If garbage collected |
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770 self.gced = False |
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771 |
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772 def repacklockvfs(repo): |
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773 if util.safehasattr(repo, 'name'): |
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774 # Lock in the shared cache so repacks across multiple copies of the same |
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775 # repo are coordinated. |
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776 sharedcachepath = shallowutil.getcachepackpath( |
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777 repo, |
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778 constants.FILEPACK_CATEGORY) |
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779 return vfs.vfs(sharedcachepath) |
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780 else: |
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781 return repo.svfs |