Mercurial > hg
annotate hgext/fsmonitor/__init__.py @ 34580:7259f0ddfc0f
fsmonitor: update to match new dirstate refactor
The dirstate was refactored so dirstate._map is now at dirstate._map._map. Same
for _copymap, is not _map.copymap. It seems none of the mercurial tests cover
this stuff, but it was caught by our Facebook extension tests.
Differential Revision: https://phab.mercurial-scm.org/D945
author | Durham Goode <durham@fb.com> |
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date | Mon, 09 Oct 2017 12:47:22 -0700 |
parents | 4aa57627692a |
children | dacfcdd8b94e |
rev | line source |
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1 # __init__.py - fsmonitor initialization and overrides |
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2 # |
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3 # Copyright 2013-2016 Facebook, Inc. |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
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6 # GNU General Public License version 2 or any later version. |
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7 |
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8 '''Faster status operations with the Watchman file monitor (EXPERIMENTAL) |
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9 |
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10 Integrates the file-watching program Watchman with Mercurial to produce faster |
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11 status results. |
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12 |
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13 On a particular Linux system, for a real-world repository with over 400,000 |
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14 files hosted on ext4, vanilla `hg status` takes 1.3 seconds. On the same |
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15 system, with fsmonitor it takes about 0.3 seconds. |
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16 |
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17 fsmonitor requires no configuration -- it will tell Watchman about your |
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18 repository as necessary. You'll need to install Watchman from |
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19 https://facebook.github.io/watchman/ and make sure it is in your PATH. |
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20 |
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21 The following configuration options exist: |
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22 |
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23 :: |
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24 |
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25 [fsmonitor] |
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26 mode = {off, on, paranoid} |
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27 |
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28 When `mode = off`, fsmonitor will disable itself (similar to not loading the |
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29 extension at all). When `mode = on`, fsmonitor will be enabled (the default). |
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30 When `mode = paranoid`, fsmonitor will query both Watchman and the filesystem, |
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31 and ensure that the results are consistent. |
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32 |
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33 :: |
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34 |
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35 [fsmonitor] |
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36 timeout = (float) |
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37 |
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38 A value, in seconds, that determines how long fsmonitor will wait for Watchman |
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39 to return results. Defaults to `2.0`. |
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40 |
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41 :: |
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42 |
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43 [fsmonitor] |
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44 blacklistusers = (list of userids) |
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45 |
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46 A list of usernames for which fsmonitor will disable itself altogether. |
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47 |
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48 :: |
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49 |
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50 [fsmonitor] |
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51 walk_on_invalidate = (boolean) |
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52 |
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53 Whether or not to walk the whole repo ourselves when our cached state has been |
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54 invalidated, for example when Watchman has been restarted or .hgignore rules |
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55 have been changed. Walking the repo in that case can result in competing for |
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56 I/O with Watchman. For large repos it is recommended to set this value to |
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57 false. You may wish to set this to true if you have a very fast filesystem |
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58 that can outpace the IPC overhead of getting the result data for the full repo |
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59 from Watchman. Defaults to false. |
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60 |
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61 fsmonitor is incompatible with the largefiles and eol extensions, and |
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62 will disable itself if any of those are active. |
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63 |
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64 ''' |
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65 |
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66 # Platforms Supported |
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67 # =================== |
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68 # |
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69 # **Linux:** *Stable*. Watchman and fsmonitor are both known to work reliably, |
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70 # even under severe loads. |
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71 # |
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72 # **Mac OS X:** *Stable*. The Mercurial test suite passes with fsmonitor |
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73 # turned on, on case-insensitive HFS+. There has been a reasonable amount of |
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74 # user testing under normal loads. |
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75 # |
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76 # **Solaris, BSD:** *Alpha*. watchman and fsmonitor are believed to work, but |
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77 # very little testing has been done. |
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78 # |
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79 # **Windows:** *Alpha*. Not in a release version of watchman or fsmonitor yet. |
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80 # |
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81 # Known Issues |
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82 # ============ |
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83 # |
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84 # * fsmonitor will disable itself if any of the following extensions are |
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85 # enabled: largefiles, inotify, eol; or if the repository has subrepos. |
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86 # * fsmonitor will produce incorrect results if nested repos that are not |
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87 # subrepos exist. *Workaround*: add nested repo paths to your `.hgignore`. |
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88 # |
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89 # The issues related to nested repos and subrepos are probably not fundamental |
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90 # ones. Patches to fix them are welcome. |
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91 |
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92 from __future__ import absolute_import |
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93 |
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94 import codecs |
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95 import hashlib |
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96 import os |
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97 import stat |
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98 import sys |
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99 import weakref |
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100 |
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101 from mercurial.i18n import _ |
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102 from mercurial.node import ( |
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103 hex, |
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104 nullid, |
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105 ) |
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106 |
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107 from mercurial import ( |
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108 context, |
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109 encoding, |
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110 error, |
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111 extensions, |
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112 localrepo, |
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113 merge, |
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114 pathutil, |
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115 pycompat, |
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116 registrar, |
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117 scmutil, |
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118 util, |
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119 ) |
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120 from mercurial import match as matchmod |
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121 |
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122 from . import ( |
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123 pywatchman, |
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124 state, |
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125 watchmanclient, |
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126 ) |
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127 |
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128 # Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for |
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129 # extensions which SHIP WITH MERCURIAL. Non-mainline extensions should |
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130 # be specifying the version(s) of Mercurial they are tested with, or |
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131 # leave the attribute unspecified. |
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132 testedwith = 'ships-with-hg-core' |
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133 |
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134 configtable = {} |
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135 configitem = registrar.configitem(configtable) |
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136 |
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137 configitem('fsmonitor', 'mode', |
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138 default='on', |
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139 ) |
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140 configitem('fsmonitor', 'walk_on_invalidate', |
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141 default=False, |
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142 ) |
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143 configitem('fsmonitor', 'timeout', |
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144 default='2', |
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145 ) |
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146 configitem('fsmonitor', 'blacklistusers', |
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147 default=list, |
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148 ) |
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149 |
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150 # This extension is incompatible with the following blacklisted extensions |
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151 # and will disable itself when encountering one of these: |
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152 _blacklist = ['largefiles', 'eol'] |
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153 |
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154 def _handleunavailable(ui, state, ex): |
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155 """Exception handler for Watchman interaction exceptions""" |
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156 if isinstance(ex, watchmanclient.Unavailable): |
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157 if ex.warn: |
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158 ui.warn(str(ex) + '\n') |
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159 if ex.invalidate: |
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160 state.invalidate() |
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161 ui.log('fsmonitor', 'Watchman unavailable: %s\n', ex.msg) |
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162 else: |
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163 ui.log('fsmonitor', 'Watchman exception: %s\n', ex) |
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164 |
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165 def _hashignore(ignore): |
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166 """Calculate hash for ignore patterns and filenames |
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167 |
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168 If this information changes between Mercurial invocations, we can't |
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169 rely on Watchman information anymore and have to re-scan the working |
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170 copy. |
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171 |
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172 """ |
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173 sha1 = hashlib.sha1() |
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174 sha1.update(repr(ignore)) |
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175 return sha1.hexdigest() |
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176 |
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177 _watchmanencoding = pywatchman.encoding.get_local_encoding() |
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178 _fsencoding = sys.getfilesystemencoding() or sys.getdefaultencoding() |
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179 _fixencoding = codecs.lookup(_watchmanencoding) != codecs.lookup(_fsencoding) |
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180 |
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181 def _watchmantofsencoding(path): |
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182 """Fix path to match watchman and local filesystem encoding |
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183 |
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184 watchman's paths encoding can differ from filesystem encoding. For example, |
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185 on Windows, it's always utf-8. |
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186 """ |
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187 try: |
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188 decoded = path.decode(_watchmanencoding) |
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189 except UnicodeDecodeError as e: |
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190 raise error.Abort(str(e), hint='watchman encoding error') |
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191 |
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192 try: |
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193 encoded = decoded.encode(_fsencoding, 'strict') |
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194 except UnicodeEncodeError as e: |
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195 raise error.Abort(str(e)) |
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196 |
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197 return encoded |
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198 |
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199 def overridewalk(orig, self, match, subrepos, unknown, ignored, full=True): |
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200 '''Replacement for dirstate.walk, hooking into Watchman. |
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201 |
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202 Whenever full is False, ignored is False, and the Watchman client is |
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203 available, use Watchman combined with saved state to possibly return only a |
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204 subset of files.''' |
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205 def bail(): |
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206 return orig(match, subrepos, unknown, ignored, full=True) |
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207 |
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208 if full or ignored or not self._watchmanclient.available(): |
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209 return bail() |
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210 state = self._fsmonitorstate |
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211 clock, ignorehash, notefiles = state.get() |
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212 if not clock: |
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213 if state.walk_on_invalidate: |
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214 return bail() |
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215 # Initial NULL clock value, see |
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216 # https://facebook.github.io/watchman/docs/clockspec.html |
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217 clock = 'c:0:0' |
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218 notefiles = [] |
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219 |
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220 def fwarn(f, msg): |
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221 self._ui.warn('%s: %s\n' % (self.pathto(f), msg)) |
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222 return False |
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223 |
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224 def badtype(mode): |
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225 kind = _('unknown') |
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226 if stat.S_ISCHR(mode): |
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227 kind = _('character device') |
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228 elif stat.S_ISBLK(mode): |
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229 kind = _('block device') |
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230 elif stat.S_ISFIFO(mode): |
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231 kind = _('fifo') |
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232 elif stat.S_ISSOCK(mode): |
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233 kind = _('socket') |
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234 elif stat.S_ISDIR(mode): |
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235 kind = _('directory') |
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236 return _('unsupported file type (type is %s)') % kind |
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237 |
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238 ignore = self._ignore |
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239 dirignore = self._dirignore |
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240 if unknown: |
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241 if _hashignore(ignore) != ignorehash and clock != 'c:0:0': |
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242 # ignore list changed -- can't rely on Watchman state any more |
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243 if state.walk_on_invalidate: |
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244 return bail() |
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245 notefiles = [] |
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246 clock = 'c:0:0' |
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247 else: |
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248 # always ignore |
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249 ignore = util.always |
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250 dirignore = util.always |
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251 |
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252 matchfn = match.matchfn |
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253 matchalways = match.always() |
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254 dmap = self._map._map |
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255 nonnormalset = getattr(self, '_nonnormalset', None) |
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256 |
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257 copymap = self._map.copymap |
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258 getkind = stat.S_IFMT |
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259 dirkind = stat.S_IFDIR |
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260 regkind = stat.S_IFREG |
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261 lnkkind = stat.S_IFLNK |
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262 join = self._join |
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263 normcase = util.normcase |
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264 fresh_instance = False |
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265 |
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266 exact = skipstep3 = False |
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267 if match.isexact(): # match.exact |
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268 exact = True |
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parents:
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269 dirignore = util.always # skip step 2 |
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270 elif match.prefix(): # match.match, no patterns |
28433
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271 skipstep3 = True |
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272 |
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273 if not exact and self._checkcase: |
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274 # note that even though we could receive directory entries, we're only |
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275 # interested in checking if a file with the same name exists. So only |
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276 # normalize files if possible. |
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277 normalize = self._normalizefile |
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278 skipstep3 = False |
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279 else: |
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280 normalize = None |
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281 |
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282 # step 1: find all explicit files |
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Martijn Pieters <mjpieters@fb.com>
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283 results, work, dirsnotfound = self._walkexplicit(match, subrepos) |
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Martijn Pieters <mjpieters@fb.com>
parents:
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284 |
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285 skipstep3 = skipstep3 and not (work or dirsnotfound) |
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286 work = [d for d in work if not dirignore(d[0])] |
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parents:
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287 |
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288 if not work and (exact or skipstep3): |
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289 for s in subrepos: |
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Martijn Pieters <mjpieters@fb.com>
parents:
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290 del results[s] |
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Martijn Pieters <mjpieters@fb.com>
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291 del results['.hg'] |
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292 return results |
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293 |
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294 # step 2: query Watchman |
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295 try: |
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296 # Use the user-configured timeout for the query. |
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297 # Add a little slack over the top of the user query to allow for |
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298 # overheads while transferring the data |
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299 self._watchmanclient.settimeout(state.timeout + 0.1) |
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300 result = self._watchmanclient.command('query', { |
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301 'fields': ['mode', 'mtime', 'size', 'exists', 'name'], |
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302 'since': clock, |
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Martijn Pieters <mjpieters@fb.com>
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303 'expression': [ |
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Martijn Pieters <mjpieters@fb.com>
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304 'not', [ |
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305 'anyof', ['dirname', '.hg'], |
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parents:
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306 ['name', '.hg', 'wholename'] |
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parents:
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307 ] |
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Martijn Pieters <mjpieters@fb.com>
parents:
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308 ], |
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309 'sync_timeout': int(state.timeout * 1000), |
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310 'empty_on_fresh_instance': state.walk_on_invalidate, |
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311 }) |
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312 except Exception as ex: |
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313 _handleunavailable(self._ui, state, ex) |
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314 self._watchmanclient.clearconnection() |
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315 return bail() |
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316 else: |
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317 # We need to propagate the last observed clock up so that we |
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318 # can use it for our next query |
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319 state.setlastclock(result['clock']) |
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320 if result['is_fresh_instance']: |
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parents:
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321 if state.walk_on_invalidate: |
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parents:
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322 state.invalidate() |
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323 return bail() |
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parents:
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324 fresh_instance = True |
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parents:
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325 # Ignore any prior noteable files from the state info |
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326 notefiles = [] |
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parents:
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|
327 |
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parents:
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328 # for file paths which require normalization and we encounter a case |
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parents:
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329 # collision, we store our own foldmap |
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Martijn Pieters <mjpieters@fb.com>
parents:
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330 if normalize: |
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parents:
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331 foldmap = dict((normcase(k), k) for k in results) |
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Martijn Pieters <mjpieters@fb.com>
parents:
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|
332 |
30666
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Pulkit Goyal <7895pulkit@gmail.com>
parents:
30332
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333 switch_slashes = pycompat.ossep == '\\' |
28433
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parents:
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334 # The order of the results is, strictly speaking, undefined. |
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Martijn Pieters <mjpieters@fb.com>
parents:
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|
335 # For case changes on a case insensitive filesystem we may receive |
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parents:
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336 # two entries, one with exists=True and another with exists=False. |
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parents:
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337 # The exists=True entries in the same response should be interpreted |
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parents:
diff
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338 # as being happens-after the exists=False entries due to the way that |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
339 # Watchman tracks files. We use this property to reconcile deletes |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
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|
340 # for name case changes. |
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Martijn Pieters <mjpieters@fb.com>
parents:
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|
341 for entry in result['files']: |
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Martijn Pieters <mjpieters@fb.com>
parents:
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342 fname = entry['name'] |
31846
1064a296a2a7
fsmonitor: match watchman and filesystem encoding
Olivier Trempe <oliviertrempe@gmail.com>
parents:
30666
diff
changeset
|
343 if _fixencoding: |
1064a296a2a7
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Olivier Trempe <oliviertrempe@gmail.com>
parents:
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|
344 fname = _watchmantofsencoding(fname) |
28433
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parents:
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|
345 if switch_slashes: |
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parents:
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|
346 fname = fname.replace('\\', '/') |
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parents:
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347 if normalize: |
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Martijn Pieters <mjpieters@fb.com>
parents:
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|
348 normed = normcase(fname) |
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parents:
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349 fname = normalize(fname, True, True) |
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parents:
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|
350 foldmap[normed] = fname |
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parents:
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|
351 fmode = entry['mode'] |
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Martijn Pieters <mjpieters@fb.com>
parents:
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|
352 fexists = entry['exists'] |
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Martijn Pieters <mjpieters@fb.com>
parents:
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|
353 kind = getkind(fmode) |
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Martijn Pieters <mjpieters@fb.com>
parents:
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|
354 |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
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|
355 if not fexists: |
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Martijn Pieters <mjpieters@fb.com>
parents:
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356 # if marked as deleted and we don't already have a change |
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Martijn Pieters <mjpieters@fb.com>
parents:
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|
357 # record, mark it as deleted. If we already have an entry |
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Martijn Pieters <mjpieters@fb.com>
parents:
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changeset
|
358 # for fname then it was either part of walkexplicit or was |
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Martijn Pieters <mjpieters@fb.com>
parents:
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|
359 # an earlier result that was a case change |
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Martijn Pieters <mjpieters@fb.com>
parents:
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|
360 if fname not in results and fname in dmap and ( |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
361 matchalways or matchfn(fname)): |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
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changeset
|
362 results[fname] = None |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
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|
363 elif kind == dirkind: |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
364 if fname in dmap and (matchalways or matchfn(fname)): |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
365 results[fname] = None |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
366 elif kind == regkind or kind == lnkkind: |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
367 if fname in dmap: |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
368 if matchalways or matchfn(fname): |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
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|
369 results[fname] = entry |
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parents:
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370 elif (matchalways or matchfn(fname)) and not ignore(fname): |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
371 results[fname] = entry |
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parents:
diff
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372 elif fname in dmap and (matchalways or matchfn(fname)): |
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Martijn Pieters <mjpieters@fb.com>
parents:
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|
373 results[fname] = None |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
374 |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
375 # step 3: query notable files we don't already know about |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
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|
376 # XXX try not to iterate over the entire dmap |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
377 if normalize: |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
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|
378 # any notable files that have changed case will already be handled |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
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|
379 # above, so just check membership in the foldmap |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
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|
380 notefiles = set((normalize(f, True, True) for f in notefiles |
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Martijn Pieters <mjpieters@fb.com>
parents:
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|
381 if normcase(f) not in foldmap)) |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
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|
382 visit = set((f for f in notefiles if (f not in results and matchfn(f) |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
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|
383 and (f in dmap or not ignore(f))))) |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
384 |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
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|
385 if nonnormalset is not None and not fresh_instance: |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
386 if matchalways: |
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Martijn Pieters <mjpieters@fb.com>
parents:
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387 visit.update(f for f in nonnormalset if f not in results) |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
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388 visit.update(f for f in copymap if f not in results) |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
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|
389 else: |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
390 visit.update(f for f in nonnormalset |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
391 if f not in results and matchfn(f)) |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
392 visit.update(f for f in copymap |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
393 if f not in results and matchfn(f)) |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
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|
394 else: |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
395 if matchalways: |
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Martijn Pieters <mjpieters@fb.com>
parents:
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|
396 visit.update(f for f, st in dmap.iteritems() |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
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|
397 if (f not in results and |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
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|
398 (st[2] < 0 or st[0] != 'n' or fresh_instance))) |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
399 visit.update(f for f in copymap if f not in results) |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
400 else: |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
401 visit.update(f for f, st in dmap.iteritems() |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
402 if (f not in results and |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
403 (st[2] < 0 or st[0] != 'n' or fresh_instance) |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
404 and matchfn(f))) |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
405 visit.update(f for f in copymap |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
406 if f not in results and matchfn(f)) |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
407 |
33649
377e8ddaebef
pathauditor: disable cache of audited paths by default (issue5628)
Yuya Nishihara <yuya@tcha.org>
parents:
33387
diff
changeset
|
408 audit = pathutil.pathauditor(self._root, cached=True).check |
28433
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
409 auditpass = [f for f in visit if audit(f)] |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
410 auditpass.sort() |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
411 auditfail = visit.difference(auditpass) |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
412 for f in auditfail: |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
413 results[f] = None |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
414 |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
415 nf = iter(auditpass).next |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
416 for st in util.statfiles([join(f) for f in auditpass]): |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
417 f = nf() |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
418 if st or f in dmap: |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
419 results[f] = st |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
420 |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
421 for s in subrepos: |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
422 del results[s] |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
423 del results['.hg'] |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
424 return results |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
425 |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
426 def overridestatus( |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
427 orig, self, node1='.', node2=None, match=None, ignored=False, |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
428 clean=False, unknown=False, listsubrepos=False): |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
429 listignored = ignored |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
430 listclean = clean |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
431 listunknown = unknown |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
432 |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
433 def _cmpsets(l1, l2): |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
434 try: |
30666
6ada1658fc6b
py3: use python 3 compatible variables in hgext/fsmontor/__init__.py
Pulkit Goyal <7895pulkit@gmail.com>
parents:
30332
diff
changeset
|
435 if 'FSMONITOR_LOG_FILE' in encoding.environ: |
6ada1658fc6b
py3: use python 3 compatible variables in hgext/fsmontor/__init__.py
Pulkit Goyal <7895pulkit@gmail.com>
parents:
30332
diff
changeset
|
436 fn = encoding.environ['FSMONITOR_LOG_FILE'] |
28433
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
437 f = open(fn, 'wb') |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
438 else: |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
439 fn = 'fsmonitorfail.log' |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
440 f = self.opener(fn, 'wb') |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
441 except (IOError, OSError): |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
442 self.ui.warn(_('warning: unable to write to %s\n') % fn) |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
443 return |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
444 |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
445 try: |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
446 for i, (s1, s2) in enumerate(zip(l1, l2)): |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
447 if set(s1) != set(s2): |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
448 f.write('sets at position %d are unequal\n' % i) |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
449 f.write('watchman returned: %s\n' % s1) |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
450 f.write('stat returned: %s\n' % s2) |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
451 finally: |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
452 f.close() |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
453 |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
454 if isinstance(node1, context.changectx): |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
455 ctx1 = node1 |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
456 else: |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
457 ctx1 = self[node1] |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
458 if isinstance(node2, context.changectx): |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
459 ctx2 = node2 |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
460 else: |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
461 ctx2 = self[node2] |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
462 |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
463 working = ctx2.rev() is None |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
464 parentworking = working and ctx1 == self['.'] |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
465 match = match or matchmod.always(self.root, self.getcwd()) |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
466 |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
467 # Maybe we can use this opportunity to update Watchman's state. |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
468 # Mercurial uses workingcommitctx and/or memctx to represent the part of |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
469 # the workingctx that is to be committed. So don't update the state in |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
470 # that case. |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
471 # HG_PENDING is set in the environment when the dirstate is being updated |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
472 # in the middle of a transaction; we must not update our state in that |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
473 # case, or we risk forgetting about changes in the working copy. |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
474 updatestate = (parentworking and match.always() and |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
475 not isinstance(ctx2, (context.workingcommitctx, |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
476 context.memctx)) and |
30666
6ada1658fc6b
py3: use python 3 compatible variables in hgext/fsmontor/__init__.py
Pulkit Goyal <7895pulkit@gmail.com>
parents:
30332
diff
changeset
|
477 'HG_PENDING' not in encoding.environ) |
28433
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
478 |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
479 try: |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
480 if self._fsmonitorstate.walk_on_invalidate: |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
481 # Use a short timeout to query the current clock. If that |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
482 # takes too long then we assume that the service will be slow |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
483 # to answer our query. |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
484 # walk_on_invalidate indicates that we prefer to walk the |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
485 # tree ourselves because we can ignore portions that Watchman |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
486 # cannot and we tend to be faster in the warmer buffer cache |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
487 # cases. |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
488 self._watchmanclient.settimeout(0.1) |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
489 else: |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
490 # Give Watchman more time to potentially complete its walk |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
491 # and return the initial clock. In this mode we assume that |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
492 # the filesystem will be slower than parsing a potentially |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
493 # very large Watchman result set. |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
494 self._watchmanclient.settimeout( |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
495 self._fsmonitorstate.timeout + 0.1) |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
496 startclock = self._watchmanclient.getcurrentclock() |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
497 except Exception as ex: |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
498 self._watchmanclient.clearconnection() |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
499 _handleunavailable(self.ui, self._fsmonitorstate, ex) |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
500 # boo, Watchman failed. bail |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
501 return orig(node1, node2, match, listignored, listclean, |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
502 listunknown, listsubrepos) |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
503 |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
504 if updatestate: |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
505 # We need info about unknown files. This may make things slower the |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
506 # first time, but whatever. |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
507 stateunknown = True |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
508 else: |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
509 stateunknown = listunknown |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
510 |
32815
15e85dded933
fsmonitor: write state with wlock held and dirstate unchanged (issue5581)
Siddharth Agarwal <sid0@fb.com>
parents:
32722
diff
changeset
|
511 if updatestate: |
15e85dded933
fsmonitor: write state with wlock held and dirstate unchanged (issue5581)
Siddharth Agarwal <sid0@fb.com>
parents:
32722
diff
changeset
|
512 ps = poststatus(startclock) |
15e85dded933
fsmonitor: write state with wlock held and dirstate unchanged (issue5581)
Siddharth Agarwal <sid0@fb.com>
parents:
32722
diff
changeset
|
513 self.addpostdsstatus(ps) |
15e85dded933
fsmonitor: write state with wlock held and dirstate unchanged (issue5581)
Siddharth Agarwal <sid0@fb.com>
parents:
32722
diff
changeset
|
514 |
28433
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
515 r = orig(node1, node2, match, listignored, listclean, stateunknown, |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
516 listsubrepos) |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
517 modified, added, removed, deleted, unknown, ignored, clean = r |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
518 |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
519 if not listunknown: |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
520 unknown = [] |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
521 |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
522 # don't do paranoid checks if we're not going to query Watchman anyway |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
523 full = listclean or match.traversedir is not None |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
524 if self._fsmonitorstate.mode == 'paranoid' and not full: |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
525 # run status again and fall back to the old walk this time |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
526 self.dirstate._fsmonitordisable = True |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
527 |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
528 # shut the UI up |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
529 quiet = self.ui.quiet |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
530 self.ui.quiet = True |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
531 fout, ferr = self.ui.fout, self.ui.ferr |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
532 self.ui.fout = self.ui.ferr = open(os.devnull, 'wb') |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
533 |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
534 try: |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
535 rv2 = orig( |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
536 node1, node2, match, listignored, listclean, listunknown, |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
537 listsubrepos) |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
538 finally: |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
539 self.dirstate._fsmonitordisable = False |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
540 self.ui.quiet = quiet |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
541 self.ui.fout, self.ui.ferr = fout, ferr |
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542 |
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543 # clean isn't tested since it's set to True above |
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544 _cmpsets([modified, added, removed, deleted, unknown, ignored, clean], |
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545 rv2) |
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546 modified, added, removed, deleted, unknown, ignored, clean = rv2 |
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547 |
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548 return scmutil.status( |
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549 modified, added, removed, deleted, unknown, ignored, clean) |
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550 |
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551 class poststatus(object): |
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552 def __init__(self, startclock): |
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553 self._startclock = startclock |
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554 |
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555 def __call__(self, wctx, status): |
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556 clock = wctx.repo()._fsmonitorstate.getlastclock() or self._startclock |
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557 hashignore = _hashignore(wctx.repo().dirstate._ignore) |
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558 notefiles = (status.modified + status.added + status.removed + |
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559 status.deleted + status.unknown) |
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560 wctx.repo()._fsmonitorstate.set(clock, hashignore, notefiles) |
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561 |
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562 def makedirstate(repo, dirstate): |
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563 class fsmonitordirstate(dirstate.__class__): |
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564 def _fsmonitorinit(self, repo): |
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565 # _fsmonitordisable is used in paranoid mode |
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566 self._fsmonitordisable = False |
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567 self._fsmonitorstate = repo._fsmonitorstate |
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568 self._watchmanclient = repo._watchmanclient |
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569 self._repo = weakref.proxy(repo) |
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570 |
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571 def walk(self, *args, **kwargs): |
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572 orig = super(fsmonitordirstate, self).walk |
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573 if self._fsmonitordisable: |
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574 return orig(*args, **kwargs) |
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575 return overridewalk(orig, self, *args, **kwargs) |
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576 |
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577 def rebuild(self, *args, **kwargs): |
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578 self._fsmonitorstate.invalidate() |
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579 return super(fsmonitordirstate, self).rebuild(*args, **kwargs) |
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580 |
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581 def invalidate(self, *args, **kwargs): |
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582 self._fsmonitorstate.invalidate() |
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583 return super(fsmonitordirstate, self).invalidate(*args, **kwargs) |
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584 |
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585 if dirstate._ui.configbool( |
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586 "experimental", "fsmonitor.wc_change_notify"): |
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587 def setparents(self, p1, p2=nullid): |
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588 with state_update(self._repo, name="hg.wc_change", |
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589 oldnode=self._pl[0], newnode=p1, |
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590 partial=False): |
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591 return super(fsmonitordirstate, self).setparents(p1, p2) |
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592 |
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593 dirstate.__class__ = fsmonitordirstate |
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594 dirstate._fsmonitorinit(repo) |
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595 |
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596 def wrapdirstate(orig, self): |
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597 ds = orig(self) |
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598 # only override the dirstate when Watchman is available for the repo |
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599 if util.safehasattr(self, '_fsmonitorstate'): |
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|
600 makedirstate(self, ds) |
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601 return ds |
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|
602 |
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|
603 def extsetup(ui): |
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|
604 extensions.wrapfilecache( |
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605 localrepo.localrepository, 'dirstate', wrapdirstate) |
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606 if pycompat.sysplatform == 'darwin': |
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607 # An assist for avoiding the dangling-symlink fsevents bug |
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608 extensions.wrapfunction(os, 'symlink', wrapsymlink) |
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609 |
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610 extensions.wrapfunction(merge, 'update', wrapupdate) |
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|
611 |
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612 def wrapsymlink(orig, source, link_name): |
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613 ''' if we create a dangling symlink, also touch the parent dir |
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614 to encourage fsevents notifications to work more correctly ''' |
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|
615 try: |
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|
616 return orig(source, link_name) |
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|
617 finally: |
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|
618 try: |
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619 os.utime(os.path.dirname(link_name), None) |
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620 except OSError: |
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|
621 pass |
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622 |
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|
623 class state_update(object): |
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624 ''' This context manager is responsible for dispatching the state-enter |
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625 and state-leave signals to the watchman service. The enter and leave |
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626 methods can be invoked manually (for scenarios where context manager |
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627 semantics are not possible). If parameters oldnode and newnode are None, |
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628 they will be populated based on current working copy in enter and |
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629 leave, respectively. Similarly, if the distance is none, it will be |
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630 calculated based on the oldnode and newnode in the leave method.''' |
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631 |
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632 def __init__(self, repo, name, oldnode=None, newnode=None, distance=None, |
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633 partial=False): |
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634 self.repo = repo.unfiltered() |
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635 self.name = name |
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636 self.oldnode = oldnode |
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637 self.newnode = newnode |
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638 self.distance = distance |
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639 self.partial = partial |
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640 self._lock = None |
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641 self.need_leave = False |
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642 |
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643 def __enter__(self): |
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644 self.enter() |
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645 |
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646 def enter(self): |
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647 # We explicitly need to take a lock here, before we proceed to update |
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648 # watchman about the update operation, so that we don't race with |
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649 # some other actor. merge.update is going to take the wlock almost |
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650 # immediately anyway, so this is effectively extending the lock |
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651 # around a couple of short sanity checks. |
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652 if self.oldnode is None: |
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653 self.oldnode = self.repo['.'].node() |
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654 self._lock = self.repo.wlock() |
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655 self.need_leave = self._state( |
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656 'state-enter', |
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657 hex(self.oldnode)) |
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658 return self |
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|
659 |
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|
660 def __exit__(self, type_, value, tb): |
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661 abort = True if type_ else False |
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|
662 self.exit(abort=abort) |
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663 |
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664 def exit(self, abort=False): |
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665 try: |
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|
666 if self.need_leave: |
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667 status = 'failed' if abort else 'ok' |
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668 if self.newnode is None: |
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669 self.newnode = self.repo['.'].node() |
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670 if self.distance is None: |
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671 self.distance = calcdistance( |
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672 self.repo, self.oldnode, self.newnode) |
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673 self._state( |
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674 'state-leave', |
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|
675 hex(self.newnode), |
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676 status=status) |
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677 finally: |
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678 self.need_leave = False |
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679 if self._lock: |
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680 self._lock.release() |
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681 |
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682 def _state(self, cmd, commithash, status='ok'): |
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683 if not util.safehasattr(self.repo, '_watchmanclient'): |
32335
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fsmonitor: don't attempt state-leave if we didn't state-enter
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|
684 return False |
28443
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|
685 try: |
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|
686 self.repo._watchmanclient.command(cmd, { |
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687 'name': self.name, |
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688 'metadata': { |
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|
689 # the target revision |
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|
690 'rev': commithash, |
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|
691 # approximate number of commits between current and target |
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692 'distance': self.distance if self.distance else 0, |
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693 # success/failure (only really meaningful for state-leave) |
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694 'status': status, |
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695 # whether the working copy parent is changing |
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696 'partial': self.partial, |
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697 }}) |
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|
698 return True |
28443
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699 except Exception as e: |
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700 # Swallow any errors; fire and forget |
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701 self.repo.ui.log( |
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702 'watchman', 'Exception %s while running %s\n', e, cmd) |
32335
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diff
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|
703 return False |
28443
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diff
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|
704 |
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diff
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|
705 # Estimate the distance between two nodes |
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|
706 def calcdistance(repo, oldnode, newnode): |
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707 anc = repo.changelog.ancestor(oldnode, newnode) |
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|
708 ancrev = repo[anc].rev() |
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|
709 distance = (abs(repo[oldnode].rev() - ancrev) |
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diff
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|
710 + abs(repo[newnode].rev() - ancrev)) |
b79f59425964
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diff
changeset
|
711 return distance |
b79f59425964
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diff
changeset
|
712 |
28443
49d65663d7e4
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Martijn Pieters <mjpieters@fb.com>
parents:
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diff
changeset
|
713 # Bracket working copy updates with calls to the watchman state-enter |
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fsmonitor: hook up state-enter, state-leave signals
Martijn Pieters <mjpieters@fb.com>
parents:
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diff
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|
714 # and state-leave commands. This allows clients to perform more intelligent |
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fsmonitor: hook up state-enter, state-leave signals
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diff
changeset
|
715 # settling during bulk file change scenarios |
49d65663d7e4
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diff
changeset
|
716 # https://facebook.github.io/watchman/docs/cmd/subscribe.html#advanced-settling |
49d65663d7e4
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diff
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|
717 def wrapupdate(orig, repo, node, branchmerge, force, ancestor=None, |
49d65663d7e4
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diff
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|
718 mergeancestor=False, labels=None, matcher=None, **kwargs): |
49d65663d7e4
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parents:
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diff
changeset
|
719 |
49d65663d7e4
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parents:
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diff
changeset
|
720 distance = 0 |
49d65663d7e4
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Martijn Pieters <mjpieters@fb.com>
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diff
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|
721 partial = True |
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|
722 oldnode = repo['.'].node() |
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diff
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|
723 newnode = repo[node].node() |
28443
49d65663d7e4
fsmonitor: hook up state-enter, state-leave signals
Martijn Pieters <mjpieters@fb.com>
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diff
changeset
|
724 if matcher is None or matcher.always(): |
49d65663d7e4
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parents:
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diff
changeset
|
725 partial = False |
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diff
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|
726 distance = calcdistance(repo.unfiltered(), oldnode, newnode) |
28443
49d65663d7e4
fsmonitor: hook up state-enter, state-leave signals
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parents:
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diff
changeset
|
727 |
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4aa57627692a
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diff
changeset
|
728 with state_update(repo, name="hg.update", oldnode=oldnode, newnode=newnode, |
4aa57627692a
fsmonitor: add new watchman notifications to fsmonitor extension
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parents:
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diff
changeset
|
729 distance=distance, partial=partial): |
28443
49d65663d7e4
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Martijn Pieters <mjpieters@fb.com>
parents:
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diff
changeset
|
730 return orig( |
49d65663d7e4
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Martijn Pieters <mjpieters@fb.com>
parents:
28433
diff
changeset
|
731 repo, node, branchmerge, force, ancestor, mergeancestor, |
32405
bdc4861ffe59
fsmonitor: fix silly "*kwargs" bug in merge.update() override
Martin von Zweigbergk <martinvonz@google.com>
parents:
32335
diff
changeset
|
732 labels, matcher, **kwargs) |
28443
49d65663d7e4
fsmonitor: hook up state-enter, state-leave signals
Martijn Pieters <mjpieters@fb.com>
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28433
diff
changeset
|
733 |
28433
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fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
734 def reposetup(ui, repo): |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
735 # We don't work with largefiles or inotify |
3b67f27bb908
fsmonitor: new experimental extension
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parents:
diff
changeset
|
736 exts = extensions.enabled() |
3b67f27bb908
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parents:
diff
changeset
|
737 for ext in _blacklist: |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
738 if ext in exts: |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
739 ui.warn(_('The fsmonitor extension is incompatible with the %s ' |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
740 'extension and has been disabled.\n') % ext) |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
741 return |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
742 |
33385
8bb4c69c4000
fsmonitor: avoid needless instantiation of dirstate
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
32815
diff
changeset
|
743 if repo.local(): |
8bb4c69c4000
fsmonitor: avoid needless instantiation of dirstate
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
32815
diff
changeset
|
744 # We don't work with subrepos either. |
8bb4c69c4000
fsmonitor: avoid needless instantiation of dirstate
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parents:
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diff
changeset
|
745 # |
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FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
32815
diff
changeset
|
746 # if repo[None].substate can cause a dirstate parse, which is too |
8bb4c69c4000
fsmonitor: avoid needless instantiation of dirstate
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
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diff
changeset
|
747 # slow. Instead, look for a file called hgsubstate, |
8bb4c69c4000
fsmonitor: avoid needless instantiation of dirstate
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
32815
diff
changeset
|
748 if repo.wvfs.exists('.hgsubstate') or repo.wvfs.exists('.hgsub'): |
28433
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
749 return |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
750 |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
751 fsmonitorstate = state.state(repo) |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
752 if fsmonitorstate.mode == 'off': |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
753 return |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
754 |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
755 try: |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
756 client = watchmanclient.client(repo) |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
757 except Exception as ex: |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
758 _handleunavailable(ui, fsmonitorstate, ex) |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
759 return |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
760 |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
761 repo._fsmonitorstate = fsmonitorstate |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
762 repo._watchmanclient = client |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
763 |
33387
68e9762a357b
fsmonitor: execute setup procedures only if dirstate is already instantiated
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
33386
diff
changeset
|
764 dirstate, cached = localrepo.isfilecached(repo, 'dirstate') |
68e9762a357b
fsmonitor: execute setup procedures only if dirstate is already instantiated
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
33386
diff
changeset
|
765 if cached: |
68e9762a357b
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FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
33386
diff
changeset
|
766 # at this point since fsmonitorstate wasn't present, |
68e9762a357b
fsmonitor: execute setup procedures only if dirstate is already instantiated
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
33386
diff
changeset
|
767 # repo.dirstate is not a fsmonitordirstate |
68e9762a357b
fsmonitor: execute setup procedures only if dirstate is already instantiated
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
33386
diff
changeset
|
768 makedirstate(repo, dirstate) |
28433
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
769 |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
770 class fsmonitorrepo(repo.__class__): |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
771 def status(self, *args, **kwargs): |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
772 orig = super(fsmonitorrepo, self).status |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
773 return overridestatus(orig, self, *args, **kwargs) |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
774 |
34565
4aa57627692a
fsmonitor: add new watchman notifications to fsmonitor extension
Eamonn Kent <ekent@fb.com>
parents:
34564
diff
changeset
|
775 if ui.configbool("experimental", "fsmonitor.transaction_notify"): |
4aa57627692a
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Eamonn Kent <ekent@fb.com>
parents:
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diff
changeset
|
776 def transaction(self, *args, **kwargs): |
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fsmonitor: add new watchman notifications to fsmonitor extension
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parents:
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diff
changeset
|
777 tr = super(fsmonitorrepo, self).transaction( |
4aa57627692a
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parents:
34564
diff
changeset
|
778 *args, **kwargs) |
4aa57627692a
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Eamonn Kent <ekent@fb.com>
parents:
34564
diff
changeset
|
779 if tr.count != 1: |
4aa57627692a
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parents:
34564
diff
changeset
|
780 return tr |
4aa57627692a
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parents:
34564
diff
changeset
|
781 stateupdate = state_update(self, name="hg.transaction") |
4aa57627692a
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parents:
34564
diff
changeset
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782 stateupdate.enter() |
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783 |
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784 class fsmonitortrans(tr.__class__): |
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785 def _abort(self): |
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786 try: |
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787 result = super(fsmonitortrans, self)._abort() |
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788 finally: |
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789 stateupdate.exit(abort=True) |
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790 return result |
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791 |
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792 def close(self): |
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793 try: |
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794 result = super(fsmonitortrans, self).close() |
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795 finally: |
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796 if self.count == 0: |
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797 stateupdate.exit() |
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798 return result |
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799 |
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800 tr.__class__ = fsmonitortrans |
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801 return tr |
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802 |
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803 repo.__class__ = fsmonitorrepo |