Mercurial > hg
annotate hgext/eol.py @ 46370:cad17d50736c
changelog: move branchinfo to changelogrevision
The function parses the extra dictionary after looking up the
changelogrevision. To avoid duplicated look up, it is better to provide
it as property of changelogrevision instead. Keep the function for a
release cycle as at least the topic extension depends on it.
Differential Revision: https://phab.mercurial-scm.org/D9779
author | Joerg Sonnenberger <joerg@bec.de> |
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date | Fri, 15 Jan 2021 01:30:08 +0100 |
parents | 89a2afe31e82 |
children | 936f26b9f1cc |
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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 from __future__ import absolute_import |
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95 |
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96 import os |
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97 import re |
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98 from mercurial.i18n import _ |
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99 from mercurial import ( |
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100 config, |
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101 error as errormod, |
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102 extensions, |
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103 match, |
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104 pycompat, |
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105 registrar, |
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106 scmutil, |
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107 util, |
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108 ) |
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109 from mercurial.utils import stringutil |
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110 |
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111 # Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for |
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112 # extensions which SHIP WITH MERCURIAL. Non-mainline extensions should |
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113 # be specifying the version(s) of Mercurial they are tested with, or |
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114 # leave the attribute unspecified. |
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115 testedwith = b'ships-with-hg-core' |
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116 |
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117 configtable = {} |
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118 configitem = registrar.configitem(configtable) |
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119 |
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120 configitem( |
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121 b'eol', |
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122 b'fix-trailing-newline', |
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123 default=False, |
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124 ) |
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125 configitem( |
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126 b'eol', |
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127 b'native', |
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128 default=pycompat.oslinesep, |
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129 ) |
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130 configitem( |
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131 b'eol', |
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132 b'only-consistent', |
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133 default=True, |
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134 ) |
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135 |
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136 # Matches a lone LF, i.e., one that is not part of CRLF. |
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137 singlelf = re.compile(b'(^|[^\r])\n') |
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138 |
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139 |
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140 def inconsistenteol(data): |
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141 return b'\r\n' in data and singlelf.search(data) |
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142 |
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143 |
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144 def tolf(s, params, ui, **kwargs): |
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145 """Filter to convert to LF EOLs.""" |
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146 if stringutil.binary(s): |
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147 return s |
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148 if ui.configbool(b'eol', b'only-consistent') and inconsistenteol(s): |
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149 return s |
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150 if ( |
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151 ui.configbool(b'eol', b'fix-trailing-newline') |
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152 and s |
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153 and not s.endswith(b'\n') |
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154 ): |
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155 s = s + b'\n' |
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156 return util.tolf(s) |
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157 |
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158 |
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159 def tocrlf(s, params, ui, **kwargs): |
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160 """Filter to convert to CRLF EOLs.""" |
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161 if stringutil.binary(s): |
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162 return s |
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163 if ui.configbool(b'eol', b'only-consistent') and inconsistenteol(s): |
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164 return s |
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165 if ( |
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166 ui.configbool(b'eol', b'fix-trailing-newline') |
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167 and s |
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168 and not s.endswith(b'\n') |
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169 ): |
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170 s = s + b'\n' |
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171 return util.tocrlf(s) |
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172 |
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173 |
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174 def isbinary(s, params, ui, **kwargs): |
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175 """Filter to do nothing with the file.""" |
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176 return s |
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177 |
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178 |
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179 filters = { |
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180 b'to-lf': tolf, |
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181 b'to-crlf': tocrlf, |
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182 b'is-binary': isbinary, |
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183 # The following provide backwards compatibility with win32text |
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184 b'cleverencode:': tolf, |
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185 b'cleverdecode:': tocrlf, |
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186 } |
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187 |
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188 |
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189 class eolfile(object): |
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190 def __init__(self, ui, root, data): |
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191 self._decode = { |
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192 b'LF': b'to-lf', |
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193 b'CRLF': b'to-crlf', |
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194 b'BIN': b'is-binary', |
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195 } |
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196 self._encode = { |
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197 b'LF': b'to-lf', |
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198 b'CRLF': b'to-crlf', |
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199 b'BIN': b'is-binary', |
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200 } |
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201 |
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202 self.cfg = config.config() |
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203 # Our files should not be touched. The pattern must be |
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204 # inserted first override a '** = native' pattern. |
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205 self.cfg.set(b'patterns', b'.hg*', b'BIN', b'eol') |
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206 # We can then parse the user's patterns. |
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207 self.cfg.parse(b'.hgeol', data) |
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208 |
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209 isrepolf = self.cfg.get(b'repository', b'native') != b'CRLF' |
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210 self._encode[b'NATIVE'] = isrepolf and b'to-lf' or b'to-crlf' |
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211 iswdlf = ui.config(b'eol', b'native') in (b'LF', b'\n') |
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212 self._decode[b'NATIVE'] = iswdlf and b'to-lf' or b'to-crlf' |
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213 |
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214 include = [] |
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215 exclude = [] |
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216 self.patterns = [] |
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217 for pattern, style in self.cfg.items(b'patterns'): |
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218 key = style.upper() |
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219 if key == b'BIN': |
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220 exclude.append(pattern) |
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221 else: |
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222 include.append(pattern) |
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223 m = match.match(root, b'', [pattern]) |
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224 self.patterns.append((pattern, key, m)) |
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225 # This will match the files for which we need to care |
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226 # about inconsistent newlines. |
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227 self.match = match.match(root, b'', [], include, exclude) |
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228 |
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229 def copytoui(self, ui): |
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230 newpatterns = {pattern for pattern, key, m in self.patterns} |
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231 for section in (b'decode', b'encode'): |
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232 for oldpattern, _filter in ui.configitems(section): |
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233 if oldpattern not in newpatterns: |
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234 if ui.configsource(section, oldpattern) == b'eol': |
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235 ui.setconfig(section, oldpattern, b'!', b'eol') |
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236 for pattern, key, m in self.patterns: |
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237 try: |
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238 ui.setconfig(b'decode', pattern, self._decode[key], b'eol') |
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239 ui.setconfig(b'encode', pattern, self._encode[key], b'eol') |
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240 except KeyError: |
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241 ui.warn( |
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242 _(b"ignoring unknown EOL style '%s' from %s\n") |
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243 % (key, self.cfg.source(b'patterns', pattern)) |
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244 ) |
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245 # eol.only-consistent can be specified in ~/.hgrc or .hgeol |
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246 for k, v in self.cfg.items(b'eol'): |
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247 ui.setconfig(b'eol', k, v, b'eol') |
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248 |
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249 def checkrev(self, repo, ctx, files): |
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250 failed = [] |
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251 for f in files or ctx.files(): |
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252 if f not in ctx: |
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253 continue |
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254 for pattern, key, m in self.patterns: |
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255 if not m(f): |
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256 continue |
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257 target = self._encode[key] |
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258 data = ctx[f].data() |
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259 if ( |
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260 target == b"to-lf" |
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261 and b"\r\n" in data |
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262 or target == b"to-crlf" |
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263 and singlelf.search(data) |
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264 ): |
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265 failed.append((f, target, bytes(ctx))) |
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266 break |
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267 return failed |
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268 |
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269 |
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270 def parseeol(ui, repo, nodes): |
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271 try: |
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272 for node in nodes: |
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273 try: |
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274 if node is None: |
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275 # Cannot use workingctx.data() since it would load |
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276 # and cache the filters before we configure them. |
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277 data = repo.wvfs(b'.hgeol').read() |
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278 else: |
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279 data = repo[node][b'.hgeol'].data() |
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280 return eolfile(ui, repo.root, data) |
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281 except (IOError, LookupError): |
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282 pass |
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283 except errormod.ConfigError as inst: |
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284 ui.warn( |
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285 _( |
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286 b"warning: ignoring .hgeol file due to parse error " |
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287 b"at %s: %s\n" |
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288 ) |
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289 % (inst.location, inst.message) |
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290 ) |
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291 return None |
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292 |
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293 |
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294 def ensureenabled(ui): |
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295 """make sure the extension is enabled when used as hook |
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296 |
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297 When eol is used through hooks, the extension is never formally loaded and |
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298 enabled. This has some side effect, for example the config declaration is |
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299 never loaded. This function ensure the extension is enabled when running |
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300 hooks. |
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301 """ |
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302 if b'eol' in ui._knownconfig: |
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303 return |
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304 ui.setconfig(b'extensions', b'eol', b'', source=b'internal') |
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305 extensions.loadall(ui, [b'eol']) |
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306 |
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307 |
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308 def _checkhook(ui, repo, node, headsonly): |
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309 # Get revisions to check and touched files at the same time |
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310 ensureenabled(ui) |
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311 files = set() |
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312 revs = set() |
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313 for rev in pycompat.xrange(repo[node].rev(), len(repo)): |
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314 revs.add(rev) |
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315 if headsonly: |
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316 ctx = repo[rev] |
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317 files.update(ctx.files()) |
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318 for pctx in ctx.parents(): |
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319 revs.discard(pctx.rev()) |
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320 failed = [] |
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321 for rev in revs: |
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322 ctx = repo[rev] |
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323 eol = parseeol(ui, repo, [ctx.node()]) |
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324 if eol: |
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325 failed.extend(eol.checkrev(repo, ctx, files)) |
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326 |
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327 if failed: |
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328 eols = {b'to-lf': b'CRLF', b'to-crlf': b'LF'} |
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329 msgs = [] |
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330 for f, target, node in sorted(failed): |
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331 msgs.append( |
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332 _(b" %s in %s should not have %s line endings") |
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333 % (f, node, eols[target]) |
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334 ) |
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335 raise errormod.Abort( |
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336 _(b"end-of-line check failed:\n") + b"\n".join(msgs) |
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337 ) |
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338 |
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339 |
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340 def checkallhook(ui, repo, node, hooktype, **kwargs): |
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341 """verify that files have expected EOLs""" |
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342 _checkhook(ui, repo, node, False) |
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343 |
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344 |
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345 def checkheadshook(ui, repo, node, hooktype, **kwargs): |
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346 """verify that files have expected EOLs""" |
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347 _checkhook(ui, repo, node, True) |
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348 |
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349 |
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350 # "checkheadshook" used to be called "hook" |
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351 hook = checkheadshook |
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352 |
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353 |
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354 def preupdate(ui, repo, hooktype, parent1, parent2): |
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355 p1node = scmutil.resolvehexnodeidprefix(repo, parent1) |
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356 repo.loadeol([p1node]) |
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357 return False |
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358 |
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359 |
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360 def uisetup(ui): |
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361 ui.setconfig(b'hooks', b'preupdate.eol', preupdate, b'eol') |
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362 |
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363 |
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364 def extsetup(ui): |
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365 try: |
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366 extensions.find(b'win32text') |
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367 ui.warn( |
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368 _( |
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369 b"the eol extension is incompatible with the " |
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370 b"win32text extension\n" |
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371 ) |
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372 ) |
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373 except KeyError: |
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374 pass |
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375 |
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376 |
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377 def reposetup(ui, repo): |
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378 uisetup(repo.ui) |
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379 |
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380 if not repo.local(): |
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381 return |
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382 for name, fn in pycompat.iteritems(filters): |
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383 repo.adddatafilter(name, fn) |
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384 |
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385 ui.setconfig(b'patch', b'eol', b'auto', b'eol') |
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386 |
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387 class eolrepo(repo.__class__): |
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388 def loadeol(self, nodes): |
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389 eol = parseeol(self.ui, self, nodes) |
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390 if eol is None: |
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eol: remove unused argument in readhgeol()
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391 return None |
14854
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eol: eol.only-consistent can now be specified in .hgeol
Stepan Koltsov <stepancheg@yandex-team.ru>
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392 eol.copytoui(self.ui) |
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393 return eol.match |
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394 |
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395 def _hgcleardirstate(self): |
43207
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eol: don't fallback to use .hgeol from tip (BC)
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396 self._eolmatch = self.loadeol([None]) |
30113
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eol: fix variable naming - call it _eolmatch instead of _eolfile
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397 if not self._eolmatch: |
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398 self._eolmatch = util.never |
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399 return |
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400 |
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401 oldeol = None |
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402 try: |
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403 cachemtime = os.path.getmtime(self.vfs.join(b"eol.cache")) |
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404 except OSError: |
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405 cachemtime = 0 |
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406 else: |
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407 olddata = self.vfs.read(b"eol.cache") |
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408 if olddata: |
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409 oldeol = eolfile(self.ui, self.root, olddata) |
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|
410 |
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411 try: |
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412 eolmtime = os.path.getmtime(self.wjoin(b".hgeol")) |
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413 except OSError: |
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diff
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|
414 eolmtime = 0 |
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|
415 |
43204
fd8c3f59b544
eol: cache needs update, also if it has same timestamp as the source
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43203
diff
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|
416 if eolmtime >= cachemtime and eolmtime > 0: |
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417 self.ui.debug(b"eol: detected change in .hgeol\n") |
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418 |
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419 hgeoldata = self.wvfs.read(b'.hgeol') |
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420 neweol = eolfile(self.ui, self.root, hgeoldata) |
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|
421 |
11249
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diff
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|
422 wlock = None |
0bb67503ad4b
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parents:
diff
changeset
|
423 try: |
0bb67503ad4b
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parents:
diff
changeset
|
424 wlock = self.wlock() |
13581
b30a488762e1
eol: use dirstate methods to clear dirstate
Martin Geisler <mg@lazybytes.net>
parents:
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|
425 for f in self.dirstate: |
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426 if self.dirstate[f] != b'n': |
30140
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|
427 continue |
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|
428 if oldeol is not None: |
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|
429 if not oldeol.match(f) and not neweol.match(f): |
747e546c561f
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|
430 continue |
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|
431 oldkey = None |
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|
432 for pattern, key, m in oldeol.patterns: |
747e546c561f
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|
433 if m(f): |
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|
434 oldkey = key |
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changeset
|
435 break |
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diff
changeset
|
436 newkey = None |
747e546c561f
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changeset
|
437 for pattern, key, m in neweol.patterns: |
747e546c561f
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|
438 if m(f): |
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changeset
|
439 newkey = key |
747e546c561f
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diff
changeset
|
440 break |
747e546c561f
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diff
changeset
|
441 if oldkey == newkey: |
747e546c561f
eol: on update, only re-check files if filtering changed
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parents:
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diff
changeset
|
442 continue |
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|
443 # all normal files need to be looked at again since |
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|
444 # the new .hgeol file specify a different filter |
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|
445 self.dirstate.normallookup(f) |
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|
446 # Write the cache to update mtime and cache .hgeol |
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|
447 with self.vfs(b"eol.cache", b"w") as f: |
30140
747e546c561f
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changeset
|
448 f.write(hgeoldata) |
32987
74930cf4a10e
eol: import 'error' as 'errormod'
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
31776
diff
changeset
|
449 except errormod.LockUnavailable: |
13475
c7bef25ca393
eol: handle LockUnavailable error (issue2569)
Martin Geisler <mg@aragost.com>
parents:
13471
diff
changeset
|
450 # If we cannot lock the repository and clear the |
c7bef25ca393
eol: handle LockUnavailable error (issue2569)
Martin Geisler <mg@aragost.com>
parents:
13471
diff
changeset
|
451 # dirstate, then a commit might not see all files |
c7bef25ca393
eol: handle LockUnavailable error (issue2569)
Martin Geisler <mg@aragost.com>
parents:
13471
diff
changeset
|
452 # as modified. But if we cannot lock the |
c7bef25ca393
eol: handle LockUnavailable error (issue2569)
Martin Geisler <mg@aragost.com>
parents:
13471
diff
changeset
|
453 # repository, then we can also not make a commit, |
c7bef25ca393
eol: handle LockUnavailable error (issue2569)
Martin Geisler <mg@aragost.com>
parents:
13471
diff
changeset
|
454 # so ignore the error. |
c7bef25ca393
eol: handle LockUnavailable error (issue2569)
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parents:
13471
diff
changeset
|
455 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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456 finally: |
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Pierre-Yves David <pierre-yves.david@ens-lyon.org>
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457 if wlock is not None: |
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Pierre-Yves David <pierre-yves.david@ens-lyon.org>
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458 wlock.release() |
11249
0bb67503ad4b
eol: extension for managing file EOLs
Martin Geisler <mg@lazybytes.net>
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459 |
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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460 def commitctx(self, ctx, error=False, origctx=None): |
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Martin Geisler <mg@lazybytes.net>
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461 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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462 if not self._eolmatch(f): |
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Martin Geisler <mg@lazybytes.net>
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463 continue |
23068
fb3e63c603e8
eol: fix crash when handling removed files
Mads Kiilerich <madski@unity3d.com>
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464 fctx = ctx[f] |
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eol: fix crash when handling removed files
Mads Kiilerich <madski@unity3d.com>
parents:
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465 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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466 continue |
23068
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Mads Kiilerich <madski@unity3d.com>
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467 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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468 if stringutil.binary(data): |
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Martin Geisler <mg@lazybytes.net>
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469 # We should not abort here, since the user should |
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470 # be able to say "** = native" to automatically |
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471 # have all non-binary files taken care of. |
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472 continue |
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eol: extension for managing file EOLs
Martin Geisler <mg@lazybytes.net>
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473 if inconsistenteol(data): |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42620
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474 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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475 _(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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476 ) |
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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477 return super(eolrepo, self).commitctx(ctx, error, origctx) |
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Augie Fackler <augie@google.com>
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478 |
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Martin Geisler <mg@lazybytes.net>
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479 repo.__class__ = eolrepo |
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Martin Geisler <mg@lazybytes.net>
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480 repo._hgcleardirstate() |