Mercurial > hg
annotate hgext/fsmonitor/__init__.py @ 30332:318a24b52eeb
spelling: fixes of non-dictionary words
author | Mads Kiilerich <madski@unity3d.com> |
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date | Mon, 17 Oct 2016 23:16:55 +0200 |
parents | d5883fd055c6 |
children | 6ada1658fc6b |
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 hashlib |
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95 import os |
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96 import stat |
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97 import sys |
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98 |
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99 from mercurial.i18n import _ |
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100 from mercurial import ( |
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101 context, |
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102 extensions, |
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103 localrepo, |
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104 merge, |
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105 pathutil, |
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106 scmutil, |
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107 util, |
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108 ) |
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109 from mercurial import match as matchmod |
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110 |
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111 from . import ( |
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112 state, |
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113 watchmanclient, |
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114 ) |
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115 |
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116 # Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for |
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117 # extensions which SHIP WITH MERCURIAL. Non-mainline extensions should |
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118 # be specifying the version(s) of Mercurial they are tested with, or |
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119 # leave the attribute unspecified. |
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120 testedwith = 'ships-with-hg-core' |
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121 |
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122 # This extension is incompatible with the following blacklisted extensions |
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123 # and will disable itself when encountering one of these: |
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124 _blacklist = ['largefiles', 'eol'] |
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125 |
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126 def _handleunavailable(ui, state, ex): |
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127 """Exception handler for Watchman interaction exceptions""" |
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128 if isinstance(ex, watchmanclient.Unavailable): |
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129 if ex.warn: |
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130 ui.warn(str(ex) + '\n') |
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131 if ex.invalidate: |
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132 state.invalidate() |
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133 ui.log('fsmonitor', 'Watchman unavailable: %s\n', ex.msg) |
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134 else: |
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135 ui.log('fsmonitor', 'Watchman exception: %s\n', ex) |
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136 |
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137 def _hashignore(ignore): |
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138 """Calculate hash for ignore patterns and filenames |
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139 |
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140 If this information changes between Mercurial invocations, we can't |
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141 rely on Watchman information anymore and have to re-scan the working |
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142 copy. |
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143 |
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144 """ |
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145 sha1 = hashlib.sha1() |
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146 if util.safehasattr(ignore, 'includepat'): |
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147 sha1.update(ignore.includepat) |
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148 sha1.update('\0\0') |
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149 if util.safehasattr(ignore, 'excludepat'): |
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150 sha1.update(ignore.excludepat) |
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151 sha1.update('\0\0') |
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152 if util.safehasattr(ignore, 'patternspat'): |
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153 sha1.update(ignore.patternspat) |
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154 sha1.update('\0\0') |
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155 if util.safehasattr(ignore, '_files'): |
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156 for f in ignore._files: |
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157 sha1.update(f) |
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158 sha1.update('\0') |
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159 return sha1.hexdigest() |
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160 |
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161 def overridewalk(orig, self, match, subrepos, unknown, ignored, full=True): |
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162 '''Replacement for dirstate.walk, hooking into Watchman. |
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163 |
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164 Whenever full is False, ignored is False, and the Watchman client is |
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165 available, use Watchman combined with saved state to possibly return only a |
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166 subset of files.''' |
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167 def bail(): |
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168 return orig(match, subrepos, unknown, ignored, full=True) |
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169 |
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170 if full or ignored or not self._watchmanclient.available(): |
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171 return bail() |
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172 state = self._fsmonitorstate |
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173 clock, ignorehash, notefiles = state.get() |
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174 if not clock: |
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175 if state.walk_on_invalidate: |
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176 return bail() |
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177 # Initial NULL clock value, see |
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178 # https://facebook.github.io/watchman/docs/clockspec.html |
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179 clock = 'c:0:0' |
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180 notefiles = [] |
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181 |
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182 def fwarn(f, msg): |
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183 self._ui.warn('%s: %s\n' % (self.pathto(f), msg)) |
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184 return False |
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185 |
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186 def badtype(mode): |
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187 kind = _('unknown') |
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188 if stat.S_ISCHR(mode): |
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189 kind = _('character device') |
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190 elif stat.S_ISBLK(mode): |
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191 kind = _('block device') |
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192 elif stat.S_ISFIFO(mode): |
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193 kind = _('fifo') |
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194 elif stat.S_ISSOCK(mode): |
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195 kind = _('socket') |
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196 elif stat.S_ISDIR(mode): |
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197 kind = _('directory') |
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198 return _('unsupported file type (type is %s)') % kind |
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199 |
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200 ignore = self._ignore |
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201 dirignore = self._dirignore |
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202 if unknown: |
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203 if _hashignore(ignore) != ignorehash and clock != 'c:0:0': |
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204 # ignore list changed -- can't rely on Watchman state any more |
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205 if state.walk_on_invalidate: |
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206 return bail() |
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207 notefiles = [] |
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208 clock = 'c:0:0' |
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209 else: |
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210 # always ignore |
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211 ignore = util.always |
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212 dirignore = util.always |
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213 |
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214 matchfn = match.matchfn |
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215 matchalways = match.always() |
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216 dmap = self._map |
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217 nonnormalset = getattr(self, '_nonnormalset', None) |
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218 |
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219 copymap = self._copymap |
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220 getkind = stat.S_IFMT |
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221 dirkind = stat.S_IFDIR |
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222 regkind = stat.S_IFREG |
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223 lnkkind = stat.S_IFLNK |
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224 join = self._join |
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225 normcase = util.normcase |
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226 fresh_instance = False |
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227 |
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228 exact = skipstep3 = False |
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229 if matchfn == match.exact: # match.exact |
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230 exact = True |
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231 dirignore = util.always # skip step 2 |
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232 elif match.files() and not match.anypats(): # match.match, no patterns |
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233 skipstep3 = True |
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234 |
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235 if not exact and self._checkcase: |
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236 # note that even though we could receive directory entries, we're only |
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237 # interested in checking if a file with the same name exists. So only |
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238 # normalize files if possible. |
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239 normalize = self._normalizefile |
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240 skipstep3 = False |
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241 else: |
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242 normalize = None |
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243 |
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244 # step 1: find all explicit files |
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245 results, work, dirsnotfound = self._walkexplicit(match, subrepos) |
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246 |
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247 skipstep3 = skipstep3 and not (work or dirsnotfound) |
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248 work = [d for d in work if not dirignore(d[0])] |
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249 |
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250 if not work and (exact or skipstep3): |
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251 for s in subrepos: |
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252 del results[s] |
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253 del results['.hg'] |
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|
254 return results |
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|
255 |
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|
256 # step 2: query Watchman |
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257 try: |
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258 # Use the user-configured timeout for the query. |
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259 # Add a little slack over the top of the user query to allow for |
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260 # overheads while transferring the data |
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261 self._watchmanclient.settimeout(state.timeout + 0.1) |
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262 result = self._watchmanclient.command('query', { |
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263 'fields': ['mode', 'mtime', 'size', 'exists', 'name'], |
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264 'since': clock, |
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265 'expression': [ |
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266 'not', [ |
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267 'anyof', ['dirname', '.hg'], |
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268 ['name', '.hg', 'wholename'] |
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269 ] |
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270 ], |
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271 'sync_timeout': int(state.timeout * 1000), |
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272 'empty_on_fresh_instance': state.walk_on_invalidate, |
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273 }) |
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|
274 except Exception as ex: |
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275 _handleunavailable(self._ui, state, ex) |
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276 self._watchmanclient.clearconnection() |
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277 return bail() |
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278 else: |
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279 # We need to propagate the last observed clock up so that we |
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280 # can use it for our next query |
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281 state.setlastclock(result['clock']) |
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282 if result['is_fresh_instance']: |
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283 if state.walk_on_invalidate: |
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284 state.invalidate() |
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285 return bail() |
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286 fresh_instance = True |
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287 # Ignore any prior noteable files from the state info |
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288 notefiles = [] |
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289 |
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290 # for file paths which require normalization and we encounter a case |
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291 # collision, we store our own foldmap |
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292 if normalize: |
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293 foldmap = dict((normcase(k), k) for k in results) |
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294 |
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295 switch_slashes = os.sep == '\\' |
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296 # The order of the results is, strictly speaking, undefined. |
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297 # For case changes on a case insensitive filesystem we may receive |
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298 # two entries, one with exists=True and another with exists=False. |
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299 # The exists=True entries in the same response should be interpreted |
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300 # as being happens-after the exists=False entries due to the way that |
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301 # Watchman tracks files. We use this property to reconcile deletes |
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302 # for name case changes. |
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303 for entry in result['files']: |
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304 fname = entry['name'] |
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305 if switch_slashes: |
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306 fname = fname.replace('\\', '/') |
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307 if normalize: |
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308 normed = normcase(fname) |
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309 fname = normalize(fname, True, True) |
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310 foldmap[normed] = fname |
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311 fmode = entry['mode'] |
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312 fexists = entry['exists'] |
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313 kind = getkind(fmode) |
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314 |
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315 if not fexists: |
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316 # if marked as deleted and we don't already have a change |
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317 # record, mark it as deleted. If we already have an entry |
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318 # for fname then it was either part of walkexplicit or was |
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319 # an earlier result that was a case change |
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320 if fname not in results and fname in dmap and ( |
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321 matchalways or matchfn(fname)): |
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322 results[fname] = None |
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323 elif kind == dirkind: |
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324 if fname in dmap and (matchalways or matchfn(fname)): |
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325 results[fname] = None |
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326 elif kind == regkind or kind == lnkkind: |
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327 if fname in dmap: |
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328 if matchalways or matchfn(fname): |
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329 results[fname] = entry |
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330 elif (matchalways or matchfn(fname)) and not ignore(fname): |
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331 results[fname] = entry |
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332 elif fname in dmap and (matchalways or matchfn(fname)): |
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333 results[fname] = None |
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334 |
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335 # step 3: query notable files we don't already know about |
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336 # XXX try not to iterate over the entire dmap |
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337 if normalize: |
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338 # any notable files that have changed case will already be handled |
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339 # above, so just check membership in the foldmap |
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340 notefiles = set((normalize(f, True, True) for f in notefiles |
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341 if normcase(f) not in foldmap)) |
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342 visit = set((f for f in notefiles if (f not in results and matchfn(f) |
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343 and (f in dmap or not ignore(f))))) |
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344 |
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345 if nonnormalset is not None and not fresh_instance: |
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346 if matchalways: |
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347 visit.update(f for f in nonnormalset if f not in results) |
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348 visit.update(f for f in copymap if f not in results) |
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349 else: |
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350 visit.update(f for f in nonnormalset |
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351 if f not in results and matchfn(f)) |
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352 visit.update(f for f in copymap |
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353 if f not in results and matchfn(f)) |
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354 else: |
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355 if matchalways: |
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356 visit.update(f for f, st in dmap.iteritems() |
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357 if (f not in results and |
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358 (st[2] < 0 or st[0] != 'n' or fresh_instance))) |
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359 visit.update(f for f in copymap if f not in results) |
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360 else: |
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361 visit.update(f for f, st in dmap.iteritems() |
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362 if (f not in results and |
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363 (st[2] < 0 or st[0] != 'n' or fresh_instance) |
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364 and matchfn(f))) |
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365 visit.update(f for f in copymap |
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366 if f not in results and matchfn(f)) |
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367 |
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368 audit = pathutil.pathauditor(self._root).check |
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369 auditpass = [f for f in visit if audit(f)] |
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370 auditpass.sort() |
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371 auditfail = visit.difference(auditpass) |
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372 for f in auditfail: |
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373 results[f] = None |
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374 |
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375 nf = iter(auditpass).next |
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376 for st in util.statfiles([join(f) for f in auditpass]): |
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377 f = nf() |
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378 if st or f in dmap: |
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379 results[f] = st |
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380 |
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381 for s in subrepos: |
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382 del results[s] |
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383 del results['.hg'] |
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384 return results |
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parents:
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|
385 |
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changeset
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386 def overridestatus( |
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387 orig, self, node1='.', node2=None, match=None, ignored=False, |
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388 clean=False, unknown=False, listsubrepos=False): |
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parents:
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389 listignored = ignored |
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parents:
diff
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|
390 listclean = clean |
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parents:
diff
changeset
|
391 listunknown = unknown |
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parents:
diff
changeset
|
392 |
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parents:
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changeset
|
393 def _cmpsets(l1, l2): |
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parents:
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changeset
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394 try: |
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parents:
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changeset
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395 if 'FSMONITOR_LOG_FILE' in os.environ: |
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changeset
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396 fn = os.environ['FSMONITOR_LOG_FILE'] |
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397 f = open(fn, 'wb') |
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398 else: |
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changeset
|
399 fn = 'fsmonitorfail.log' |
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400 f = self.opener(fn, 'wb') |
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parents:
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|
401 except (IOError, OSError): |
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parents:
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|
402 self.ui.warn(_('warning: unable to write to %s\n') % fn) |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
403 return |
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parents:
diff
changeset
|
404 |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
405 try: |
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parents:
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406 for i, (s1, s2) in enumerate(zip(l1, l2)): |
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parents:
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changeset
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407 if set(s1) != set(s2): |
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parents:
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408 f.write('sets at position %d are unequal\n' % i) |
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parents:
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409 f.write('watchman returned: %s\n' % s1) |
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parents:
diff
changeset
|
410 f.write('stat returned: %s\n' % s2) |
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parents:
diff
changeset
|
411 finally: |
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parents:
diff
changeset
|
412 f.close() |
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parents:
diff
changeset
|
413 |
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parents:
diff
changeset
|
414 if isinstance(node1, context.changectx): |
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parents:
diff
changeset
|
415 ctx1 = node1 |
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parents:
diff
changeset
|
416 else: |
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parents:
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changeset
|
417 ctx1 = self[node1] |
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parents:
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changeset
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418 if isinstance(node2, context.changectx): |
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parents:
diff
changeset
|
419 ctx2 = node2 |
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parents:
diff
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420 else: |
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parents:
diff
changeset
|
421 ctx2 = self[node2] |
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parents:
diff
changeset
|
422 |
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parents:
diff
changeset
|
423 working = ctx2.rev() is None |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
424 parentworking = working and ctx1 == self['.'] |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
425 match = match or matchmod.always(self.root, self.getcwd()) |
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parents:
diff
changeset
|
426 |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
427 # Maybe we can use this opportunity to update Watchman's state. |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
428 # Mercurial uses workingcommitctx and/or memctx to represent the part of |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
429 # the workingctx that is to be committed. So don't update the state in |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
430 # that case. |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
431 # HG_PENDING is set in the environment when the dirstate is being updated |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
432 # in the middle of a transaction; we must not update our state in that |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
433 # case, or we risk forgetting about changes in the working copy. |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
434 updatestate = (parentworking and match.always() and |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
435 not isinstance(ctx2, (context.workingcommitctx, |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
436 context.memctx)) and |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
437 'HG_PENDING' not in os.environ) |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
438 |
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fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
439 try: |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
440 if self._fsmonitorstate.walk_on_invalidate: |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
441 # Use a short timeout to query the current clock. If that |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
442 # takes too long then we assume that the service will be slow |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
443 # to answer our query. |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
444 # walk_on_invalidate indicates that we prefer to walk the |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
445 # tree ourselves because we can ignore portions that Watchman |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
446 # cannot and we tend to be faster in the warmer buffer cache |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
447 # cases. |
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parents:
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|
448 self._watchmanclient.settimeout(0.1) |
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parents:
diff
changeset
|
449 else: |
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parents:
diff
changeset
|
450 # Give Watchman more time to potentially complete its walk |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
451 # and return the initial clock. In this mode we assume that |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
452 # the filesystem will be slower than parsing a potentially |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
453 # very large Watchman result set. |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
454 self._watchmanclient.settimeout( |
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Martijn Pieters <mjpieters@fb.com>
parents:
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changeset
|
455 self._fsmonitorstate.timeout + 0.1) |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
456 startclock = self._watchmanclient.getcurrentclock() |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
457 except Exception as ex: |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
458 self._watchmanclient.clearconnection() |
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parents:
diff
changeset
|
459 _handleunavailable(self.ui, self._fsmonitorstate, ex) |
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parents:
diff
changeset
|
460 # boo, Watchman failed. bail |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
461 return orig(node1, node2, match, listignored, listclean, |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
462 listunknown, listsubrepos) |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
463 |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
464 if updatestate: |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
465 # We need info about unknown files. This may make things slower the |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
466 # first time, but whatever. |
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parents:
diff
changeset
|
467 stateunknown = True |
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parents:
diff
changeset
|
468 else: |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
469 stateunknown = listunknown |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
470 |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
471 r = orig(node1, node2, match, listignored, listclean, stateunknown, |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
472 listsubrepos) |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
473 modified, added, removed, deleted, unknown, ignored, clean = r |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
474 |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
475 if updatestate: |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
476 notefiles = modified + added + removed + deleted + unknown |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
477 self._fsmonitorstate.set( |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
478 self._fsmonitorstate.getlastclock() or startclock, |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
479 _hashignore(self.dirstate._ignore), |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
480 notefiles) |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
481 |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
482 if not listunknown: |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
483 unknown = [] |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
484 |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
485 # don't do paranoid checks if we're not going to query Watchman anyway |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
486 full = listclean or match.traversedir is not None |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
487 if self._fsmonitorstate.mode == 'paranoid' and not full: |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
488 # run status again and fall back to the old walk this time |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
489 self.dirstate._fsmonitordisable = True |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
490 |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
491 # shut the UI up |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
492 quiet = self.ui.quiet |
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Martijn Pieters <mjpieters@fb.com>
parents:
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changeset
|
493 self.ui.quiet = True |
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parents:
diff
changeset
|
494 fout, ferr = self.ui.fout, self.ui.ferr |
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parents:
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changeset
|
495 self.ui.fout = self.ui.ferr = open(os.devnull, 'wb') |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
496 |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
497 try: |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
498 rv2 = orig( |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
499 node1, node2, match, listignored, listclean, listunknown, |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
500 listsubrepos) |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
501 finally: |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
502 self.dirstate._fsmonitordisable = False |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
503 self.ui.quiet = quiet |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
504 self.ui.fout, self.ui.ferr = fout, ferr |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
505 |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
506 # clean isn't tested since it's set to True above |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
507 _cmpsets([modified, added, removed, deleted, unknown, ignored, clean], |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
508 rv2) |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
509 modified, added, removed, deleted, unknown, ignored, clean = rv2 |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
510 |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
511 return scmutil.status( |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
512 modified, added, removed, deleted, unknown, ignored, clean) |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
513 |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
514 def makedirstate(cls): |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
515 class fsmonitordirstate(cls): |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
516 def _fsmonitorinit(self, fsmonitorstate, watchmanclient): |
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parents:
diff
changeset
|
517 # _fsmonitordisable is used in paranoid mode |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
518 self._fsmonitordisable = False |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
519 self._fsmonitorstate = fsmonitorstate |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
520 self._watchmanclient = watchmanclient |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
521 |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
522 def walk(self, *args, **kwargs): |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
523 orig = super(fsmonitordirstate, self).walk |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
524 if self._fsmonitordisable: |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
525 return orig(*args, **kwargs) |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
526 return overridewalk(orig, self, *args, **kwargs) |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
527 |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
528 def rebuild(self, *args, **kwargs): |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
529 self._fsmonitorstate.invalidate() |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
530 return super(fsmonitordirstate, self).rebuild(*args, **kwargs) |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
531 |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
532 def invalidate(self, *args, **kwargs): |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
533 self._fsmonitorstate.invalidate() |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
534 return super(fsmonitordirstate, self).invalidate(*args, **kwargs) |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
535 |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
536 return fsmonitordirstate |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
537 |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
538 def wrapdirstate(orig, self): |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
539 ds = orig(self) |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
540 # only override the dirstate when Watchman is available for the repo |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
541 if util.safehasattr(self, '_fsmonitorstate'): |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
542 ds.__class__ = makedirstate(ds.__class__) |
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
543 ds._fsmonitorinit(self._fsmonitorstate, self._watchmanclient) |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
544 return ds |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
545 |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
546 def extsetup(ui): |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
547 wrapfilecache(localrepo.localrepository, 'dirstate', wrapdirstate) |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
548 if sys.platform == 'darwin': |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
549 # An assist for avoiding the dangling-symlink fsevents bug |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
550 extensions.wrapfunction(os, 'symlink', wrapsymlink) |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
551 |
28443
49d65663d7e4
fsmonitor: hook up state-enter, state-leave signals
Martijn Pieters <mjpieters@fb.com>
parents:
28433
diff
changeset
|
552 extensions.wrapfunction(merge, 'update', wrapupdate) |
49d65663d7e4
fsmonitor: hook up state-enter, state-leave signals
Martijn Pieters <mjpieters@fb.com>
parents:
28433
diff
changeset
|
553 |
28433
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
554 def wrapsymlink(orig, source, link_name): |
3b67f27bb908
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parents:
diff
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555 ''' if we create a dangling symlink, also touch the parent dir |
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556 to encourage fsevents notifications to work more correctly ''' |
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557 try: |
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parents:
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558 return orig(source, link_name) |
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559 finally: |
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parents:
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560 try: |
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parents:
diff
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561 os.utime(os.path.dirname(link_name), None) |
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562 except OSError: |
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parents:
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563 pass |
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parents:
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|
564 |
28443
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565 class state_update(object): |
30332
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spelling: fixes of non-dictionary words
Mads Kiilerich <madski@unity3d.com>
parents:
29841
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566 ''' This context manager is responsible for dispatching the state-enter |
28443
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567 and state-leave signals to the watchman service ''' |
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568 |
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parents:
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569 def __init__(self, repo, node, distance, partial): |
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570 self.repo = repo |
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571 self.node = node |
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572 self.distance = distance |
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573 self.partial = partial |
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574 |
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575 def __enter__(self): |
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576 self._state('state-enter') |
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577 return self |
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parents:
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578 |
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parents:
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579 def __exit__(self, type_, value, tb): |
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580 status = 'ok' if type_ is None else 'failed' |
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581 self._state('state-leave', status=status) |
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582 |
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parents:
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diff
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583 def _state(self, cmd, status='ok'): |
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parents:
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584 if not util.safehasattr(self.repo, '_watchmanclient'): |
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585 return |
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586 try: |
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587 commithash = self.repo[self.node].hex() |
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parents:
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588 self.repo._watchmanclient.command(cmd, { |
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parents:
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589 'name': 'hg.update', |
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590 'metadata': { |
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591 # the target revision |
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592 'rev': commithash, |
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diff
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593 # approximate number of commits between current and target |
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parents:
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594 'distance': self.distance, |
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parents:
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595 # success/failure (only really meaningful for state-leave) |
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Martijn Pieters <mjpieters@fb.com>
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596 'status': status, |
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597 # whether the working copy parent is changing |
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parents:
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598 'partial': self.partial, |
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parents:
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diff
changeset
|
599 }}) |
49d65663d7e4
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parents:
28433
diff
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600 except Exception as e: |
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parents:
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diff
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601 # Swallow any errors; fire and forget |
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Martijn Pieters <mjpieters@fb.com>
parents:
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602 self.repo.ui.log( |
49d65663d7e4
fsmonitor: hook up state-enter, state-leave signals
Martijn Pieters <mjpieters@fb.com>
parents:
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603 'watchman', 'Exception %s while running %s\n', e, cmd) |
49d65663d7e4
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parents:
28433
diff
changeset
|
604 |
49d65663d7e4
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parents:
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diff
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|
605 # Bracket working copy updates with calls to the watchman state-enter |
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parents:
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606 # and state-leave commands. This allows clients to perform more intelligent |
49d65663d7e4
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Martijn Pieters <mjpieters@fb.com>
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diff
changeset
|
607 # settling during bulk file change scenarios |
49d65663d7e4
fsmonitor: hook up state-enter, state-leave signals
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parents:
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changeset
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608 # https://facebook.github.io/watchman/docs/cmd/subscribe.html#advanced-settling |
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parents:
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609 def wrapupdate(orig, repo, node, branchmerge, force, ancestor=None, |
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610 mergeancestor=False, labels=None, matcher=None, **kwargs): |
49d65663d7e4
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parents:
28433
diff
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|
611 |
49d65663d7e4
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parents:
28433
diff
changeset
|
612 distance = 0 |
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parents:
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diff
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613 partial = True |
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parents:
28433
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614 if matcher is None or matcher.always(): |
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Martijn Pieters <mjpieters@fb.com>
parents:
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615 partial = False |
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616 wc = repo[None] |
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parents:
28433
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617 parents = wc.parents() |
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parents:
28433
diff
changeset
|
618 if len(parents) == 2: |
49d65663d7e4
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Martijn Pieters <mjpieters@fb.com>
parents:
28433
diff
changeset
|
619 anc = repo.changelog.ancestor(parents[0].node(), parents[1].node()) |
49d65663d7e4
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Martijn Pieters <mjpieters@fb.com>
parents:
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620 ancrev = repo[anc].rev() |
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fsmonitor: hook up state-enter, state-leave signals
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28433
diff
changeset
|
621 distance = abs(repo[node].rev() - ancrev) |
49d65663d7e4
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Martijn Pieters <mjpieters@fb.com>
parents:
28433
diff
changeset
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622 elif len(parents) == 1: |
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parents:
28433
diff
changeset
|
623 distance = abs(repo[node].rev() - parents[0].rev()) |
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parents:
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diff
changeset
|
624 |
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fsmonitor: hook up state-enter, state-leave signals
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parents:
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diff
changeset
|
625 with state_update(repo, node, distance, partial): |
49d65663d7e4
fsmonitor: hook up state-enter, state-leave signals
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diff
changeset
|
626 return orig( |
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parents:
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diff
changeset
|
627 repo, node, branchmerge, force, ancestor, mergeancestor, |
49d65663d7e4
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parents:
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628 labels, matcher, *kwargs) |
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|
629 |
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fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
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|
630 def reposetup(ui, repo): |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
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|
631 # We don't work with largefiles or inotify |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
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|
632 exts = extensions.enabled() |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
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|
633 for ext in _blacklist: |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
634 if ext in exts: |
3b67f27bb908
fsmonitor: new experimental extension
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parents:
diff
changeset
|
635 ui.warn(_('The fsmonitor extension is incompatible with the %s ' |
3b67f27bb908
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parents:
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changeset
|
636 'extension and has been disabled.\n') % ext) |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
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changeset
|
637 return |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
638 |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
639 if util.safehasattr(repo, 'dirstate'): |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
640 # We don't work with subrepos either. Note that we can get passed in |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
641 # e.g. a statichttprepo, which throws on trying to access the substate. |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
642 # XXX This sucks. |
3b67f27bb908
fsmonitor: new experimental extension
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parents:
diff
changeset
|
643 try: |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
644 # if repo[None].substate can cause a dirstate parse, which is too |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
645 # slow. Instead, look for a file called hgsubstate, |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
646 if repo.wvfs.exists('.hgsubstate') or repo.wvfs.exists('.hgsub'): |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
647 return |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
648 except AttributeError: |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
649 return |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
650 |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
651 fsmonitorstate = state.state(repo) |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
652 if fsmonitorstate.mode == 'off': |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
653 return |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
654 |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
655 try: |
3b67f27bb908
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parents:
diff
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|
656 client = watchmanclient.client(repo) |
3b67f27bb908
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parents:
diff
changeset
|
657 except Exception as ex: |
3b67f27bb908
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parents:
diff
changeset
|
658 _handleunavailable(ui, fsmonitorstate, ex) |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
659 return |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
660 |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
661 repo._fsmonitorstate = fsmonitorstate |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
662 repo._watchmanclient = client |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
663 |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
664 # at this point since fsmonitorstate wasn't present, repo.dirstate is |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
665 # not a fsmonitordirstate |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
666 repo.dirstate.__class__ = makedirstate(repo.dirstate.__class__) |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
667 # nuke the dirstate so that _fsmonitorinit and subsequent configuration |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
668 # changes take effect on it |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
669 del repo._filecache['dirstate'] |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
670 delattr(repo.unfiltered(), 'dirstate') |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
671 |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
672 class fsmonitorrepo(repo.__class__): |
3b67f27bb908
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parents:
diff
changeset
|
673 def status(self, *args, **kwargs): |
3b67f27bb908
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parents:
diff
changeset
|
674 orig = super(fsmonitorrepo, self).status |
3b67f27bb908
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parents:
diff
changeset
|
675 return overridestatus(orig, self, *args, **kwargs) |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
676 |
3b67f27bb908
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parents:
diff
changeset
|
677 repo.__class__ = fsmonitorrepo |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
678 |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
679 def wrapfilecache(cls, propname, wrapper): |
3b67f27bb908
fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
diff
changeset
|
680 """Wraps a filecache property. These can't be wrapped using the normal |
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Martijn Pieters <mjpieters@fb.com>
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681 wrapfunction. This should eventually go into upstream Mercurial. |
3b67f27bb908
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Martijn Pieters <mjpieters@fb.com>
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682 """ |
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fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
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683 assert callable(wrapper) |
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Martijn Pieters <mjpieters@fb.com>
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684 for currcls in cls.__mro__: |
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fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
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685 if propname in currcls.__dict__: |
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Martijn Pieters <mjpieters@fb.com>
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686 origfn = currcls.__dict__[propname].func |
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Martijn Pieters <mjpieters@fb.com>
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687 assert callable(origfn) |
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Martijn Pieters <mjpieters@fb.com>
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688 def wrap(*args, **kwargs): |
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fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
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689 return wrapper(origfn, *args, **kwargs) |
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fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
parents:
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690 currcls.__dict__[propname].func = wrap |
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fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
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691 break |
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fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
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692 |
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Martijn Pieters <mjpieters@fb.com>
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693 if currcls is object: |
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fsmonitor: new experimental extension
Martijn Pieters <mjpieters@fb.com>
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694 raise AttributeError( |
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Martijn Pieters <mjpieters@fb.com>
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695 _("type '%s' has no property '%s'") % (cls, propname)) |