Mercurial > hg
annotate hgext/eol.py @ 16365:5d61e007d957
mq: use exact matching in the second dirstate walking for efficiency of 'qnew'
'hg qnew' with pattern/-I/-X creates matching object with them, and
uses it twice for 'dirstate.walk()': via 'repo.status()' and
'repo.commit()'.
this may cause full manifest scan in the second 'dirstate.walk()',
even though mq already knows complete target filenames at the first
'dirstate.walk()'.
this patch creates exact matching object also in this case, and use it
at 'repo.commit()' invocation to avoid full manifest scan in the
second 'dirstate.walk()'.
even though 'inclsubs' is added to 'pats' for original matching
object, it is also passed to exact matching object, because
subrepositories are deleted from result of 'dirstate.walk()' at the
end of it.
author | FUJIWARA Katsunori <foozy@lares.dti.ne.jp> |
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date | Thu, 05 Apr 2012 23:52:06 +0900 |
parents | 12e3f93b1cbc |
children | 525fdb738975 |
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 copy. 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 copy 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 |
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26 default behaviour; 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 The rules will first apply when files are touched in the working |
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53 copy, e.g. by updating to null and back to tip to touch all files. |
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54 |
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55 The extension uses an optional ``[eol]`` section read from both the |
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56 normal Mercurial configuration files and the ``.hgeol`` file, with the |
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57 latter overriding the former. You can use that section to control the |
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58 overall behavior. There are three settings: |
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59 |
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60 - ``eol.native`` (default ``os.linesep``) can be set to ``LF`` or |
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61 ``CRLF`` to override the default interpretation of ``native`` for |
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62 checkout. This can be used with :hg:`archive` on Unix, say, to |
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63 generate an archive where files have line endings for Windows. |
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64 |
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65 - ``eol.only-consistent`` (default True) can be set to False to make |
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66 the extension convert files with inconsistent EOLs. Inconsistent |
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67 means that there is both ``CRLF`` and ``LF`` present in the file. |
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68 Such files are normally not touched under the assumption that they |
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69 have mixed EOLs on purpose. |
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70 |
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71 - ``eol.fix-trailing-newline`` (default False) can be set to True to |
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72 ensure that converted files end with a EOL character (either ``\\n`` |
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73 or ``\\r\\n`` as per the configured patterns). |
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74 |
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75 The extension provides ``cleverencode:`` and ``cleverdecode:`` filters |
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76 like the deprecated win32text extension does. This means that you can |
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77 disable win32text and enable eol and your filters will still work. You |
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78 only need to these filters until you have prepared a ``.hgeol`` file. |
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79 |
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80 The ``win32text.forbid*`` hooks provided by the win32text extension |
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81 have been unified into a single hook named ``eol.checkheadshook``. The |
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82 hook will lookup the expected line endings from the ``.hgeol`` file, |
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83 which means you must migrate to a ``.hgeol`` file first before using |
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84 the hook. ``eol.checkheadshook`` only checks heads, intermediate |
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85 invalid revisions will be pushed. To forbid them completely, use the |
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86 ``eol.checkallhook`` hook. These hooks are best used as |
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87 ``pretxnchangegroup`` hooks. |
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88 |
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89 See :hg:`help patterns` for more information about the glob patterns |
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90 used. |
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91 """ |
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92 |
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93 from mercurial.i18n import _ |
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94 from mercurial import util, config, extensions, match, error |
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95 import re, os |
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96 |
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97 # Matches a lone LF, i.e., one that is not part of CRLF. |
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98 singlelf = re.compile('(^|[^\r])\n') |
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99 # Matches a single EOL which can either be a CRLF where repeated CR |
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100 # are removed or a LF. We do not care about old Machintosh files, so a |
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101 # stray CR is an error. |
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102 eolre = re.compile('\r*\n') |
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103 |
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104 |
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105 def inconsistenteol(data): |
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106 return '\r\n' in data and singlelf.search(data) |
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107 |
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108 def tolf(s, params, ui, **kwargs): |
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109 """Filter to convert to LF EOLs.""" |
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110 if util.binary(s): |
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111 return s |
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112 if ui.configbool('eol', 'only-consistent', True) and inconsistenteol(s): |
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113 return s |
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114 if ui.configbool('eol', 'fix-trailing-newline', False) and s and s[-1] != '\n': |
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115 s = s + '\n' |
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116 return eolre.sub('\n', s) |
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117 |
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118 def tocrlf(s, params, ui, **kwargs): |
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119 """Filter to convert to CRLF EOLs.""" |
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120 if util.binary(s): |
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121 return s |
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122 if ui.configbool('eol', 'only-consistent', True) and inconsistenteol(s): |
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123 return s |
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124 if ui.configbool('eol', 'fix-trailing-newline', False) and s and s[-1] != '\n': |
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125 s = s + '\n' |
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126 return eolre.sub('\r\n', s) |
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127 |
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128 def isbinary(s, params): |
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129 """Filter to do nothing with the file.""" |
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130 return s |
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131 |
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132 filters = { |
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133 'to-lf': tolf, |
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134 'to-crlf': tocrlf, |
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135 'is-binary': isbinary, |
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136 # The following provide backwards compatibility with win32text |
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137 'cleverencode:': tolf, |
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138 'cleverdecode:': tocrlf |
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139 } |
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140 |
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141 class eolfile(object): |
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142 def __init__(self, ui, root, data): |
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143 self._decode = {'LF': 'to-lf', 'CRLF': 'to-crlf', 'BIN': 'is-binary'} |
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144 self._encode = {'LF': 'to-lf', 'CRLF': 'to-crlf', 'BIN': 'is-binary'} |
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145 |
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146 self.cfg = config.config() |
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147 # Our files should not be touched. The pattern must be |
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148 # inserted first override a '** = native' pattern. |
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149 self.cfg.set('patterns', '.hg*', 'BIN') |
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150 # We can then parse the user's patterns. |
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151 self.cfg.parse('.hgeol', data) |
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152 |
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153 isrepolf = self.cfg.get('repository', 'native') != 'CRLF' |
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154 self._encode['NATIVE'] = isrepolf and 'to-lf' or 'to-crlf' |
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155 iswdlf = ui.config('eol', 'native', os.linesep) in ('LF', '\n') |
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156 self._decode['NATIVE'] = iswdlf and 'to-lf' or 'to-crlf' |
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157 |
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158 include = [] |
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159 exclude = [] |
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160 for pattern, style in self.cfg.items('patterns'): |
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161 key = style.upper() |
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162 if key == 'BIN': |
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163 exclude.append(pattern) |
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164 else: |
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165 include.append(pattern) |
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166 # This will match the files for which we need to care |
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167 # about inconsistent newlines. |
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168 self.match = match.match(root, '', [], include, exclude) |
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169 |
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170 def copytoui(self, ui): |
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171 for pattern, style in self.cfg.items('patterns'): |
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172 key = style.upper() |
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173 try: |
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174 ui.setconfig('decode', pattern, self._decode[key]) |
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175 ui.setconfig('encode', pattern, self._encode[key]) |
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176 except KeyError: |
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177 ui.warn(_("ignoring unknown EOL style '%s' from %s\n") |
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178 % (style, self.cfg.source('patterns', pattern))) |
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179 # eol.only-consistent can be specified in ~/.hgrc or .hgeol |
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180 for k, v in self.cfg.items('eol'): |
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181 ui.setconfig('eol', k, v) |
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182 |
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183 def checkrev(self, repo, ctx, files): |
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184 failed = [] |
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185 for f in (files or ctx.files()): |
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186 if f not in ctx: |
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187 continue |
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188 for pattern, style in self.cfg.items('patterns'): |
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189 if not match.match(repo.root, '', [pattern])(f): |
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190 continue |
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191 target = self._encode[style.upper()] |
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192 data = ctx[f].data() |
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193 if (target == "to-lf" and "\r\n" in data |
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194 or target == "to-crlf" and singlelf.search(data)): |
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195 failed.append((str(ctx), target, f)) |
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196 break |
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197 return failed |
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198 |
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199 def parseeol(ui, repo, nodes): |
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200 try: |
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201 for node in nodes: |
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202 try: |
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203 if node is None: |
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204 # Cannot use workingctx.data() since it would load |
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205 # and cache the filters before we configure them. |
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206 data = repo.wfile('.hgeol').read() |
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207 else: |
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208 data = repo[node]['.hgeol'].data() |
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209 return eolfile(ui, repo.root, data) |
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210 except (IOError, LookupError): |
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211 pass |
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212 except error.ParseError, inst: |
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213 ui.warn(_("warning: ignoring .hgeol file due to parse error " |
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214 "at %s: %s\n") % (inst.args[1], inst.args[0])) |
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215 return None |
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216 |
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217 def _checkhook(ui, repo, node, headsonly): |
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218 # Get revisions to check and touched files at the same time |
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219 files = set() |
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220 revs = set() |
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221 for rev in xrange(repo[node].rev(), len(repo)): |
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222 revs.add(rev) |
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223 if headsonly: |
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224 ctx = repo[rev] |
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225 files.update(ctx.files()) |
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226 for pctx in ctx.parents(): |
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227 revs.discard(pctx.rev()) |
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228 failed = [] |
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229 for rev in revs: |
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230 ctx = repo[rev] |
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231 eol = parseeol(ui, repo, [ctx.node()]) |
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232 if eol: |
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233 failed.extend(eol.checkrev(repo, ctx, files)) |
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234 |
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235 if failed: |
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236 eols = {'to-lf': 'CRLF', 'to-crlf': 'LF'} |
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237 msgs = [] |
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238 for node, target, f in failed: |
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239 msgs.append(_(" %s in %s should not have %s line endings") % |
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240 (f, node, eols[target])) |
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241 raise util.Abort(_("end-of-line check failed:\n") + "\n".join(msgs)) |
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242 |
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243 def checkallhook(ui, repo, node, hooktype, **kwargs): |
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244 """verify that files have expected EOLs""" |
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245 _checkhook(ui, repo, node, False) |
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246 |
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247 def checkheadshook(ui, repo, node, hooktype, **kwargs): |
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248 """verify that files have expected EOLs""" |
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249 _checkhook(ui, repo, node, True) |
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250 |
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251 # "checkheadshook" used to be called "hook" |
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252 hook = checkheadshook |
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253 |
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254 def preupdate(ui, repo, hooktype, parent1, parent2): |
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255 repo.loadeol([parent1]) |
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256 return False |
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257 |
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258 def uisetup(ui): |
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259 ui.setconfig('hooks', 'preupdate.eol', preupdate) |
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260 |
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261 def extsetup(ui): |
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262 try: |
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263 extensions.find('win32text') |
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264 ui.warn(_("the eol extension is incompatible with the " |
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265 "win32text extension\n")) |
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266 except KeyError: |
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267 pass |
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268 |
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269 |
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270 def reposetup(ui, repo): |
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271 uisetup(repo.ui) |
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272 |
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273 if not repo.local(): |
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274 return |
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275 for name, fn in filters.iteritems(): |
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276 repo.adddatafilter(name, fn) |
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277 |
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278 ui.setconfig('patch', 'eol', 'auto') |
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279 |
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280 class eolrepo(repo.__class__): |
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281 |
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282 def loadeol(self, nodes): |
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283 eol = parseeol(self.ui, self, nodes) |
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284 if eol is None: |
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285 return None |
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286 eol.copytoui(self.ui) |
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287 return eol.match |
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288 |
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289 def _hgcleardirstate(self): |
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290 self._eolfile = self.loadeol([None, 'tip']) |
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291 if not self._eolfile: |
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292 self._eolfile = util.never |
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293 return |
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294 |
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295 try: |
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296 cachemtime = os.path.getmtime(self.join("eol.cache")) |
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297 except OSError: |
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298 cachemtime = 0 |
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|
299 |
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300 try: |
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301 eolmtime = os.path.getmtime(self.wjoin(".hgeol")) |
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302 except OSError: |
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303 eolmtime = 0 |
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304 |
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305 if eolmtime > cachemtime: |
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306 ui.debug("eol: detected change in .hgeol\n") |
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307 wlock = None |
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308 try: |
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309 wlock = self.wlock() |
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310 for f in self.dirstate: |
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311 if self.dirstate[f] == 'n': |
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312 # all normal files need to be looked at |
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313 # again since the new .hgeol file might no |
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314 # longer match a file it matched before |
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315 self.dirstate.normallookup(f) |
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316 # Create or touch the cache to update mtime |
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317 self.opener("eol.cache", "w").close() |
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318 wlock.release() |
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319 except error.LockUnavailable: |
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320 # If we cannot lock the repository and clear the |
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321 # dirstate, then a commit might not see all files |
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322 # as modified. But if we cannot lock the |
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323 # repository, then we can also not make a commit, |
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324 # so ignore the error. |
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325 pass |
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326 |
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327 def commitctx(self, ctx, error=False): |
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328 for f in sorted(ctx.added() + ctx.modified()): |
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329 if not self._eolfile(f): |
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|
330 continue |
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|
331 try: |
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|
332 data = ctx[f].data() |
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|
333 except IOError: |
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|
334 continue |
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335 if util.binary(data): |
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|
336 # We should not abort here, since the user should |
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337 # be able to say "** = native" to automatically |
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338 # have all non-binary files taken care of. |
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339 continue |
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340 if inconsistenteol(data): |
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341 raise util.Abort(_("inconsistent newline style " |
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|
342 "in %s\n" % f)) |
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343 return super(eolrepo, self).commitctx(ctx, error) |
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344 repo.__class__ = eolrepo |
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|
345 repo._hgcleardirstate() |