Mercurial > hg
annotate hgext/eol.py @ 49680:40e24d82b513
delta-find: make sure we only use newer full snapshot as candidate
The current code does not needs to protect against this, as there are no older
snapshot in the current cache. However as we are getting ready to reuse this
cache from one revision to another, we need the code to protect itself about
what's coming.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Sun, 06 Nov 2022 17:55:55 -0500 |
parents | d44e3c45f0e4 |
children | 981d2f132935 |
rev | line source |
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1 """automatically manage newlines in repository files |
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2 |
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3 This extension allows you to manage the type of line endings (CRLF or |
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4 LF) that are used in the repository and in the local working |
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5 directory. That way you can get CRLF line endings on Windows and LF on |
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6 Unix/Mac, thereby letting everybody use their OS native line endings. |
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7 |
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8 The extension reads its configuration from a versioned ``.hgeol`` |
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9 configuration file found in the root of the working directory. The |
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10 ``.hgeol`` file use the same syntax as all other Mercurial |
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11 configuration files. It uses two sections, ``[patterns]`` and |
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12 ``[repository]``. |
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13 |
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14 The ``[patterns]`` section specifies how line endings should be |
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15 converted between the working directory and the repository. The format is |
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16 specified by a file pattern. The first match is used, so put more |
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17 specific patterns first. The available line endings are ``LF``, |
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18 ``CRLF``, and ``BIN``. |
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19 |
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20 Files with the declared format of ``CRLF`` or ``LF`` are always |
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21 checked out and stored in the repository in that format and files |
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22 declared to be binary (``BIN``) are left unchanged. Additionally, |
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23 ``native`` is an alias for checking out in the platform's default line |
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24 ending: ``LF`` on Unix (including Mac OS X) and ``CRLF`` on |
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25 Windows. Note that ``BIN`` (do nothing to line endings) is Mercurial's |
26098 | 26 default behavior; it is only needed if you need to override a later, |
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27 more general pattern. |
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28 |
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29 The optional ``[repository]`` section specifies the line endings to |
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30 use for files stored in the repository. It has a single setting, |
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31 ``native``, which determines the storage line endings for files |
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32 declared as ``native`` in the ``[patterns]`` section. It can be set to |
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33 ``LF`` or ``CRLF``. The default is ``LF``. For example, this means |
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34 that on Windows, files configured as ``native`` (``CRLF`` by default) |
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35 will be converted to ``LF`` when stored in the repository. Files |
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36 declared as ``LF``, ``CRLF``, or ``BIN`` in the ``[patterns]`` section |
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37 are always stored as-is in the repository. |
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38 |
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39 Example versioned ``.hgeol`` file:: |
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40 |
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41 [patterns] |
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42 **.py = native |
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43 **.vcproj = CRLF |
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44 **.txt = native |
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45 Makefile = LF |
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46 **.jpg = BIN |
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47 |
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48 [repository] |
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49 native = LF |
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50 |
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51 .. note:: |
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52 |
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53 The rules will first apply when files are touched in the working |
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54 directory, e.g. by updating to null and back to tip to touch all files. |
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55 |
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56 The extension uses an optional ``[eol]`` section read from both the |
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57 normal Mercurial configuration files and the ``.hgeol`` file, with the |
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58 latter overriding the former. You can use that section to control the |
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59 overall behavior. There are three settings: |
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60 |
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61 - ``eol.native`` (default ``os.linesep``) can be set to ``LF`` or |
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62 ``CRLF`` to override the default interpretation of ``native`` for |
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63 checkout. This can be used with :hg:`archive` on Unix, say, to |
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64 generate an archive where files have line endings for Windows. |
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65 |
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66 - ``eol.only-consistent`` (default True) can be set to False to make |
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67 the extension convert files with inconsistent EOLs. Inconsistent |
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68 means that there is both ``CRLF`` and ``LF`` present in the file. |
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69 Such files are normally not touched under the assumption that they |
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70 have mixed EOLs on purpose. |
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71 |
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72 - ``eol.fix-trailing-newline`` (default False) can be set to True to |
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73 ensure that converted files end with a EOL character (either ``\\n`` |
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74 or ``\\r\\n`` as per the configured patterns). |
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75 |
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76 The extension provides ``cleverencode:`` and ``cleverdecode:`` filters |
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77 like the deprecated win32text extension does. This means that you can |
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78 disable win32text and enable eol and your filters will still work. You |
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79 only need to these filters until you have prepared a ``.hgeol`` file. |
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80 |
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81 The ``win32text.forbid*`` hooks provided by the win32text extension |
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82 have been unified into a single hook named ``eol.checkheadshook``. The |
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83 hook will lookup the expected line endings from the ``.hgeol`` file, |
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84 which means you must migrate to a ``.hgeol`` file first before using |
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85 the hook. ``eol.checkheadshook`` only checks heads, intermediate |
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86 invalid revisions will be pushed. To forbid them completely, use the |
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87 ``eol.checkallhook`` hook. These hooks are best used as |
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88 ``pretxnchangegroup`` hooks. |
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89 |
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90 See :hg:`help patterns` for more information about the glob patterns |
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91 used. |
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92 """ |
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93 |
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94 |
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95 import os |
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96 import re |
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97 from mercurial.i18n import _ |
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98 from mercurial import ( |
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99 config, |
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100 error as errormod, |
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101 extensions, |
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102 match, |
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103 pycompat, |
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104 registrar, |
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105 scmutil, |
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106 util, |
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107 ) |
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108 from mercurial.utils import stringutil |
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109 |
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110 # Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for |
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111 # extensions which SHIP WITH MERCURIAL. Non-mainline extensions should |
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112 # be specifying the version(s) of Mercurial they are tested with, or |
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113 # leave the attribute unspecified. |
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114 testedwith = b'ships-with-hg-core' |
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115 |
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116 configtable = {} |
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117 configitem = registrar.configitem(configtable) |
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118 |
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119 configitem( |
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120 b'eol', |
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121 b'fix-trailing-newline', |
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122 default=False, |
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123 ) |
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124 configitem( |
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125 b'eol', |
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126 b'native', |
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127 default=pycompat.oslinesep, |
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128 ) |
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129 configitem( |
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130 b'eol', |
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131 b'only-consistent', |
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132 default=True, |
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133 ) |
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134 |
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135 # Matches a lone LF, i.e., one that is not part of CRLF. |
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136 singlelf = re.compile(b'(^|[^\r])\n') |
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137 |
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138 |
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139 def inconsistenteol(data): |
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140 return b'\r\n' in data and singlelf.search(data) |
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141 |
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142 |
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143 def tolf(s, params, ui, **kwargs): |
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144 """Filter to convert to LF EOLs.""" |
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145 if stringutil.binary(s): |
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146 return s |
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147 if ui.configbool(b'eol', b'only-consistent') and inconsistenteol(s): |
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148 return s |
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149 if ( |
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150 ui.configbool(b'eol', b'fix-trailing-newline') |
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151 and s |
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152 and not s.endswith(b'\n') |
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153 ): |
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154 s = s + b'\n' |
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155 return util.tolf(s) |
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156 |
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157 |
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158 def tocrlf(s, params, ui, **kwargs): |
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159 """Filter to convert to CRLF EOLs.""" |
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160 if stringutil.binary(s): |
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161 return s |
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162 if ui.configbool(b'eol', b'only-consistent') and inconsistenteol(s): |
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163 return s |
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164 if ( |
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165 ui.configbool(b'eol', b'fix-trailing-newline') |
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166 and s |
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167 and not s.endswith(b'\n') |
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168 ): |
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169 s = s + b'\n' |
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170 return util.tocrlf(s) |
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171 |
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172 |
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173 def isbinary(s, params, ui, **kwargs): |
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174 """Filter to do nothing with the file.""" |
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175 return s |
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176 |
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177 |
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178 filters = { |
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179 b'to-lf': tolf, |
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180 b'to-crlf': tocrlf, |
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181 b'is-binary': isbinary, |
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182 # The following provide backwards compatibility with win32text |
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183 b'cleverencode:': tolf, |
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184 b'cleverdecode:': tocrlf, |
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185 } |
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186 |
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187 |
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188 class eolfile: |
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189 def __init__(self, ui, root, data): |
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190 self._decode = { |
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191 b'LF': b'to-lf', |
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192 b'CRLF': b'to-crlf', |
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193 b'BIN': b'is-binary', |
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194 } |
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195 self._encode = { |
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196 b'LF': b'to-lf', |
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197 b'CRLF': b'to-crlf', |
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198 b'BIN': b'is-binary', |
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199 } |
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200 |
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201 self.cfg = config.config() |
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202 # Our files should not be touched. The pattern must be |
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203 # inserted first override a '** = native' pattern. |
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204 self.cfg.set(b'patterns', b'.hg*', b'BIN', b'eol') |
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205 # We can then parse the user's patterns. |
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206 self.cfg.parse(b'.hgeol', data) |
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207 |
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208 isrepolf = self.cfg.get(b'repository', b'native') != b'CRLF' |
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209 self._encode[b'NATIVE'] = isrepolf and b'to-lf' or b'to-crlf' |
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210 iswdlf = ui.config(b'eol', b'native') in (b'LF', b'\n') |
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211 self._decode[b'NATIVE'] = iswdlf and b'to-lf' or b'to-crlf' |
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212 |
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213 include = [] |
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214 exclude = [] |
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215 self.patterns = [] |
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216 for pattern, style in self.cfg.items(b'patterns'): |
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217 key = style.upper() |
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218 if key == b'BIN': |
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219 exclude.append(pattern) |
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220 else: |
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221 include.append(pattern) |
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222 m = match.match(root, b'', [pattern]) |
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223 self.patterns.append((pattern, key, m)) |
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224 # This will match the files for which we need to care |
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225 # about inconsistent newlines. |
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226 self.match = match.match(root, b'', [], include, exclude) |
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227 |
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228 def copytoui(self, ui): |
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229 newpatterns = {pattern for pattern, key, m in self.patterns} |
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230 for section in (b'decode', b'encode'): |
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231 for oldpattern, _filter in ui.configitems(section): |
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232 if oldpattern not in newpatterns: |
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233 if ui.configsource(section, oldpattern) == b'eol': |
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234 ui.setconfig(section, oldpattern, b'!', b'eol') |
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235 for pattern, key, m in self.patterns: |
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236 try: |
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237 ui.setconfig(b'decode', pattern, self._decode[key], b'eol') |
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238 ui.setconfig(b'encode', pattern, self._encode[key], b'eol') |
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239 except KeyError: |
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240 ui.warn( |
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241 _(b"ignoring unknown EOL style '%s' from %s\n") |
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242 % (key, self.cfg.source(b'patterns', pattern)) |
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243 ) |
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244 # eol.only-consistent can be specified in ~/.hgrc or .hgeol |
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245 for k, v in self.cfg.items(b'eol'): |
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246 ui.setconfig(b'eol', k, v, b'eol') |
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247 |
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248 def checkrev(self, repo, ctx, files): |
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249 failed = [] |
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250 for f in files or ctx.files(): |
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251 if f not in ctx: |
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252 continue |
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253 for pattern, key, m in self.patterns: |
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254 if not m(f): |
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255 continue |
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256 target = self._encode[key] |
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257 data = ctx[f].data() |
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258 if ( |
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259 target == b"to-lf" |
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260 and b"\r\n" in data |
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261 or target == b"to-crlf" |
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262 and singlelf.search(data) |
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263 ): |
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264 failed.append((f, target, bytes(ctx))) |
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265 break |
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266 return failed |
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267 |
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268 |
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269 def parseeol(ui, repo, nodes): |
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270 try: |
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271 for node in nodes: |
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272 try: |
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273 if node is None: |
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274 # Cannot use workingctx.data() since it would load |
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275 # and cache the filters before we configure them. |
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276 data = repo.wvfs(b'.hgeol').read() |
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277 else: |
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278 data = repo[node][b'.hgeol'].data() |
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279 return eolfile(ui, repo.root, data) |
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280 except (IOError, LookupError): |
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281 pass |
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282 except errormod.ConfigError as inst: |
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283 ui.warn( |
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284 _( |
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285 b"warning: ignoring .hgeol file due to parse error " |
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286 b"at %s: %s\n" |
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287 ) |
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288 % (inst.location, inst.message) |
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289 ) |
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290 return None |
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291 |
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292 |
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293 def ensureenabled(ui): |
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294 """make sure the extension is enabled when used as hook |
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295 |
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296 When eol is used through hooks, the extension is never formally loaded and |
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297 enabled. This has some side effect, for example the config declaration is |
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298 never loaded. This function ensure the extension is enabled when running |
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299 hooks. |
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300 """ |
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301 if b'eol' in ui._knownconfig: |
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302 return |
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303 ui.setconfig(b'extensions', b'eol', b'', source=b'internal') |
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304 extensions.loadall(ui, [b'eol']) |
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305 |
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306 |
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307 def _checkhook(ui, repo, node, headsonly): |
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308 # Get revisions to check and touched files at the same time |
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309 ensureenabled(ui) |
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310 files = set() |
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311 revs = set() |
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312 for rev in range(repo[node].rev(), len(repo)): |
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313 revs.add(rev) |
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314 if headsonly: |
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315 ctx = repo[rev] |
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316 files.update(ctx.files()) |
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317 for pctx in ctx.parents(): |
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318 revs.discard(pctx.rev()) |
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319 failed = [] |
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320 for rev in revs: |
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321 ctx = repo[rev] |
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322 eol = parseeol(ui, repo, [ctx.node()]) |
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323 if eol: |
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324 failed.extend(eol.checkrev(repo, ctx, files)) |
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325 |
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326 if failed: |
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327 eols = {b'to-lf': b'CRLF', b'to-crlf': b'LF'} |
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328 msgs = [] |
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329 for f, target, node in sorted(failed): |
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330 msgs.append( |
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331 _(b" %s in %s should not have %s line endings") |
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332 % (f, node, eols[target]) |
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333 ) |
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334 raise errormod.Abort( |
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335 _(b"end-of-line check failed:\n") + b"\n".join(msgs) |
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336 ) |
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337 |
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338 |
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339 def checkallhook(ui, repo, node, hooktype, **kwargs): |
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340 """verify that files have expected EOLs""" |
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341 _checkhook(ui, repo, node, False) |
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342 |
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343 |
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344 def checkheadshook(ui, repo, node, hooktype, **kwargs): |
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345 """verify that files have expected EOLs""" |
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346 _checkhook(ui, repo, node, True) |
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347 |
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348 |
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349 # "checkheadshook" used to be called "hook" |
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350 hook = checkheadshook |
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351 |
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352 |
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353 def preupdate(ui, repo, hooktype, parent1, parent2): |
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354 p1node = scmutil.resolvehexnodeidprefix(repo, parent1) |
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355 repo.loadeol([p1node]) |
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356 return False |
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357 |
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358 |
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359 def uisetup(ui): |
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360 ui.setconfig(b'hooks', b'preupdate.eol', preupdate, b'eol') |
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361 |
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362 |
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363 def extsetup(ui): |
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364 try: |
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365 extensions.find(b'win32text') |
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366 ui.warn( |
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367 _( |
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368 b"the eol extension is incompatible with the " |
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369 b"win32text extension\n" |
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370 ) |
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371 ) |
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372 except KeyError: |
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373 pass |
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374 |
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375 |
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376 def reposetup(ui, repo): |
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377 uisetup(repo.ui) |
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378 |
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379 if not repo.local(): |
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380 return |
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381 for name, fn in filters.items(): |
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382 repo.adddatafilter(name, fn) |
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383 |
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384 ui.setconfig(b'patch', b'eol', b'auto', b'eol') |
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385 |
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386 class eolrepo(repo.__class__): |
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387 def loadeol(self, nodes): |
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388 eol = parseeol(self.ui, self, nodes) |
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389 if eol is None: |
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390 return None |
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eol: eol.only-consistent can now be specified in .hgeol
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391 eol.copytoui(self.ui) |
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392 return eol.match |
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393 |
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394 def _hgcleardirstate(self): |
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395 self._eolmatch = self.loadeol([None]) |
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396 if not self._eolmatch: |
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397 self._eolmatch = util.never |
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398 return |
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399 |
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400 oldeol = None |
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401 try: |
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402 cachemtime = os.path.getmtime(self.vfs.join(b"eol.cache")) |
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403 except OSError: |
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404 cachemtime = 0 |
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405 else: |
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406 olddata = self.vfs.read(b"eol.cache") |
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407 if olddata: |
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408 oldeol = eolfile(self.ui, self.root, olddata) |
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409 |
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410 try: |
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411 eolmtime = os.path.getmtime(self.wjoin(b".hgeol")) |
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412 except OSError: |
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413 eolmtime = 0 |
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414 |
43204
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eol: cache needs update, also if it has same timestamp as the source
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415 if eolmtime >= cachemtime and eolmtime > 0: |
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416 self.ui.debug(b"eol: detected change in .hgeol\n") |
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417 |
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418 hgeoldata = self.wvfs.read(b'.hgeol') |
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419 neweol = eolfile(self.ui, self.root, hgeoldata) |
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420 |
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421 wlock = None |
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422 try: |
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423 wlock = self.wlock() |
13581
b30a488762e1
eol: use dirstate methods to clear dirstate
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424 for f in self.dirstate: |
48090
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dirstate-item: use maybe_clean instead of `state` in the eol extension
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425 if not self.dirstate.get_entry(f).maybe_clean: |
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426 continue |
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|
427 if oldeol is not None: |
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428 if not oldeol.match(f) and not neweol.match(f): |
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|
429 continue |
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|
430 oldkey = None |
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431 for pattern, key, m in oldeol.patterns: |
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|
432 if m(f): |
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|
433 oldkey = key |
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|
434 break |
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|
435 newkey = None |
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|
436 for pattern, key, m in neweol.patterns: |
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|
437 if m(f): |
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|
438 newkey = key |
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|
439 break |
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|
440 if oldkey == newkey: |
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|
441 continue |
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|
442 # all normal files need to be looked at again since |
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|
443 # the new .hgeol file specify a different filter |
47734
936f26b9f1cc
eol: use `set_possibly_dirty` instead of `normallookup`
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45942
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|
444 self.dirstate.set_possibly_dirty(f) |
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445 # Write the cache to update mtime and cache .hgeol |
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446 with self.vfs(b"eol.cache", b"w") as f: |
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|
447 f.write(hgeoldata) |
32987
74930cf4a10e
eol: import 'error' as 'errormod'
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|
448 except errormod.LockUnavailable: |
13475
c7bef25ca393
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diff
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|
449 # If we cannot lock the repository and clear the |
c7bef25ca393
eol: handle LockUnavailable error (issue2569)
Martin Geisler <mg@aragost.com>
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diff
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|
450 # dirstate, then a commit might not see all files |
c7bef25ca393
eol: handle LockUnavailable error (issue2569)
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diff
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|
451 # as modified. But if we cannot lock the |
c7bef25ca393
eol: handle LockUnavailable error (issue2569)
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|
452 # repository, then we can also not make a commit, |
c7bef25ca393
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|
453 # so ignore the error. |
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parents:
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diff
changeset
|
454 pass |
30164
1c518d69d994
eol: make sure we always release the wlock when writing cache
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
30140
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455 finally: |
1c518d69d994
eol: make sure we always release the wlock when writing cache
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
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30140
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456 if wlock is not None: |
1c518d69d994
eol: make sure we always release the wlock when writing cache
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
30140
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457 wlock.release() |
11249
0bb67503ad4b
eol: extension for managing file EOLs
Martin Geisler <mg@lazybytes.net>
parents:
diff
changeset
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458 |
42620
d98ec36be808
convert: add a config option to help doing identity hg->hg conversion
Valentin Gatien-Baron <valentin.gatienbaron@gmail.com>
parents:
38783
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changeset
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459 def commitctx(self, ctx, error=False, origctx=None): |
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eol: extension for managing file EOLs
Martin Geisler <mg@lazybytes.net>
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diff
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460 for f in sorted(ctx.added() + ctx.modified()): |
30113
ffb682412b98
eol: fix variable naming - call it _eolmatch instead of _eolfile
Mads Kiilerich <madski@unity3d.com>
parents:
29841
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461 if not self._eolmatch(f): |
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eol: extension for managing file EOLs
Martin Geisler <mg@lazybytes.net>
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462 continue |
23068
fb3e63c603e8
eol: fix crash when handling removed files
Mads Kiilerich <madski@unity3d.com>
parents:
20870
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463 fctx = ctx[f] |
fb3e63c603e8
eol: fix crash when handling removed files
Mads Kiilerich <madski@unity3d.com>
parents:
20870
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464 if fctx is None: |
14862
abf915f537be
eol: ignore IOError from deleted files in commitctx
Nicholas Riley <njriley@illinois.edu>
parents:
13650
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465 continue |
23068
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eol: fix crash when handling removed files
Mads Kiilerich <madski@unity3d.com>
parents:
20870
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466 data = fctx.data() |
37084
f0b6fbea00cf
stringutil: bulk-replace call sites to point to new module
Yuya Nishihara <yuya@tcha.org>
parents:
36667
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467 if stringutil.binary(data): |
11249
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Martin Geisler <mg@lazybytes.net>
parents:
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468 # We should not abort here, since the user should |
0bb67503ad4b
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Martin Geisler <mg@lazybytes.net>
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469 # be able to say "** = native" to automatically |
0bb67503ad4b
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Martin Geisler <mg@lazybytes.net>
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470 # have all non-binary files taken care of. |
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Martin Geisler <mg@lazybytes.net>
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471 continue |
0bb67503ad4b
eol: extension for managing file EOLs
Martin Geisler <mg@lazybytes.net>
parents:
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472 if inconsistenteol(data): |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42620
diff
changeset
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473 raise errormod.Abort( |
43117
8ff1ecfadcd1
cleanup: join string literals that are already on one line
Martin von Zweigbergk <martinvonz@google.com>
parents:
43105
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474 _(b"inconsistent newline style in %s\n") % f |
43076
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formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42620
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475 ) |
42620
d98ec36be808
convert: add a config option to help doing identity hg->hg conversion
Valentin Gatien-Baron <valentin.gatienbaron@gmail.com>
parents:
38783
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changeset
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476 return super(eolrepo, self).commitctx(ctx, error, origctx) |
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Augie Fackler <augie@google.com>
parents:
42620
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477 |
11249
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eol: extension for managing file EOLs
Martin Geisler <mg@lazybytes.net>
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478 repo.__class__ = eolrepo |
0bb67503ad4b
eol: extension for managing file EOLs
Martin Geisler <mg@lazybytes.net>
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479 repo._hgcleardirstate() |