Mercurial > hg
annotate hgext/eol.py @ 13929:cff56a0ed18e
localrepo: don't add deleted files to list of modified/added files (issue2761)
If a file is deleted (rm, not 'hg rm') from the working dir
an attempt to run 'hg diff -r X', with the file being present in X will
cause an abort.
We didn't check if the file has been deleted from the working dir
and later on tried to open it to compare with the one from X, causing the abort.
This fix adds that check. Consequently, no output will be returned.
author | Idan Kamara <idankk86@gmail.com> |
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date | Mon, 11 Apr 2011 21:44:22 +0300 |
parents | 56e71e7d2ba2 |
children | 23c2d7d25329 abf915f537be |
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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 in your hgrc file |
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56 (not the ``.hgeol`` file) for settings that control the overall |
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57 behavior. There are two settings: |
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58 |
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59 - ``eol.native`` (default ``os.linesep``) can be set to ``LF`` or |
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60 ``CRLF`` to override the default interpretation of ``native`` for |
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61 checkout. This can be used with :hg:`archive` on Unix, say, to |
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62 generate an archive where files have line endings for Windows. |
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63 |
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64 - ``eol.only-consistent`` (default True) can be set to False to make |
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65 the extension convert files with inconsistent EOLs. Inconsistent |
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66 means that there is both ``CRLF`` and ``LF`` present in the file. |
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67 Such files are normally not touched under the assumption that they |
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68 have mixed EOLs on purpose. |
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69 |
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70 The extension provides ``cleverencode:`` and ``cleverdecode:`` filters |
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71 like the deprecated win32text extension does. This means that you can |
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72 disable win32text and enable eol and your filters will still work. You |
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73 only need to these filters until you have prepared a ``.hgeol`` file. |
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74 |
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75 The ``win32text.forbid*`` hooks provided by the win32text extension |
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76 have been unified into a single hook named ``eol.checkheadshook``. The |
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77 hook will lookup the expected line endings from the ``.hgeol`` file, |
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78 which means you must migrate to a ``.hgeol`` file first before using |
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79 the hook. ``eol.checkheadshook`` only checks heads, intermediate |
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80 invalid revisions will be pushed. To forbid them completely, use the |
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81 ``eol.checkallhook`` hook. These hooks are best used as |
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82 ``pretxnchangegroup`` hooks. |
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83 |
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84 See :hg:`help patterns` for more information about the glob patterns |
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85 used. |
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86 """ |
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87 |
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88 from mercurial.i18n import _ |
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89 from mercurial import util, config, extensions, match, error |
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90 import re, os |
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91 |
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92 # Matches a lone LF, i.e., one that is not part of CRLF. |
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93 singlelf = re.compile('(^|[^\r])\n') |
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94 # Matches a single EOL which can either be a CRLF where repeated CR |
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95 # are removed or a LF. We do not care about old Machintosh files, so a |
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96 # stray CR is an error. |
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97 eolre = re.compile('\r*\n') |
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98 |
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99 |
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100 def inconsistenteol(data): |
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101 return '\r\n' in data and singlelf.search(data) |
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102 |
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103 def tolf(s, params, ui, **kwargs): |
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104 """Filter to convert to LF EOLs.""" |
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105 if util.binary(s): |
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106 return s |
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107 if ui.configbool('eol', 'only-consistent', True) and inconsistenteol(s): |
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108 return s |
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109 return eolre.sub('\n', s) |
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110 |
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111 def tocrlf(s, params, ui, **kwargs): |
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112 """Filter to convert to CRLF EOLs.""" |
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113 if util.binary(s): |
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114 return s |
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115 if ui.configbool('eol', 'only-consistent', True) and inconsistenteol(s): |
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116 return s |
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117 return eolre.sub('\r\n', s) |
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118 |
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119 def isbinary(s, params): |
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120 """Filter to do nothing with the file.""" |
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121 return s |
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122 |
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123 filters = { |
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124 'to-lf': tolf, |
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125 'to-crlf': tocrlf, |
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126 'is-binary': isbinary, |
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127 # The following provide backwards compatibility with win32text |
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128 'cleverencode:': tolf, |
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129 'cleverdecode:': tocrlf |
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130 } |
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131 |
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132 class eolfile(object): |
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133 def __init__(self, ui, root, data): |
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134 self._decode = {'LF': 'to-lf', 'CRLF': 'to-crlf', 'BIN': 'is-binary'} |
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135 self._encode = {'LF': 'to-lf', 'CRLF': 'to-crlf', 'BIN': 'is-binary'} |
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136 |
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137 self.cfg = config.config() |
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138 # Our files should not be touched. The pattern must be |
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139 # inserted first override a '** = native' pattern. |
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140 self.cfg.set('patterns', '.hg*', 'BIN') |
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141 # We can then parse the user's patterns. |
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142 self.cfg.parse('.hgeol', data) |
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143 |
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144 isrepolf = self.cfg.get('repository', 'native') != 'CRLF' |
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145 self._encode['NATIVE'] = isrepolf and 'to-lf' or 'to-crlf' |
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146 iswdlf = ui.config('eol', 'native', os.linesep) in ('LF', '\n') |
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147 self._decode['NATIVE'] = iswdlf and 'to-lf' or 'to-crlf' |
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148 |
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149 include = [] |
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150 exclude = [] |
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151 for pattern, style in self.cfg.items('patterns'): |
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152 key = style.upper() |
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153 if key == 'BIN': |
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154 exclude.append(pattern) |
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155 else: |
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156 include.append(pattern) |
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157 # This will match the files for which we need to care |
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158 # about inconsistent newlines. |
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159 self.match = match.match(root, '', [], include, exclude) |
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160 |
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161 def setfilters(self, ui): |
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162 for pattern, style in self.cfg.items('patterns'): |
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163 key = style.upper() |
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164 try: |
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165 ui.setconfig('decode', pattern, self._decode[key]) |
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166 ui.setconfig('encode', pattern, self._encode[key]) |
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167 except KeyError: |
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168 ui.warn(_("ignoring unknown EOL style '%s' from %s\n") |
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169 % (style, self.cfg.source('patterns', pattern))) |
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170 |
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171 def checkrev(self, repo, ctx, files): |
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172 failed = [] |
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173 for f in (files or ctx.files()): |
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174 if f not in ctx: |
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175 continue |
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176 for pattern, style in self.cfg.items('patterns'): |
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177 if not match.match(repo.root, '', [pattern])(f): |
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178 continue |
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179 target = self._encode[style.upper()] |
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180 data = ctx[f].data() |
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181 if (target == "to-lf" and "\r\n" in data |
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182 or target == "to-crlf" and singlelf.search(data)): |
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183 failed.append((str(ctx), target, f)) |
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184 break |
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185 return failed |
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186 |
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187 def parseeol(ui, repo, nodes): |
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188 try: |
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189 for node in nodes: |
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190 try: |
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191 if node is None: |
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192 # Cannot use workingctx.data() since it would load |
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193 # and cache the filters before we configure them. |
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194 data = repo.wfile('.hgeol').read() |
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195 else: |
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196 data = repo[node]['.hgeol'].data() |
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197 return eolfile(ui, repo.root, data) |
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198 except (IOError, LookupError): |
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199 pass |
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200 except error.ParseError, inst: |
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201 ui.warn(_("warning: ignoring .hgeol file due to parse error " |
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202 "at %s: %s\n") % (inst.args[1], inst.args[0])) |
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203 return None |
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204 |
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205 def _checkhook(ui, repo, node, headsonly): |
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206 # Get revisions to check and touched files at the same time |
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207 files = set() |
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208 revs = set() |
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209 for rev in xrange(repo[node].rev(), len(repo)): |
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210 revs.add(rev) |
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211 if headsonly: |
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212 ctx = repo[rev] |
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213 files.update(ctx.files()) |
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214 for pctx in ctx.parents(): |
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215 revs.discard(pctx.rev()) |
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216 failed = [] |
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217 for rev in revs: |
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218 ctx = repo[rev] |
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219 eol = parseeol(ui, repo, [ctx.node()]) |
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220 if eol: |
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221 failed.extend(eol.checkrev(repo, ctx, files)) |
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222 |
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223 if failed: |
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224 eols = {'to-lf': 'CRLF', 'to-crlf': 'LF'} |
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225 msgs = [] |
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226 for node, target, f in failed: |
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227 msgs.append(_(" %s in %s should not have %s line endings") % |
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228 (f, node, eols[target])) |
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229 raise util.Abort(_("end-of-line check failed:\n") + "\n".join(msgs)) |
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230 |
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231 def checkallhook(ui, repo, node, hooktype, **kwargs): |
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232 """verify that files have expected EOLs""" |
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233 _checkhook(ui, repo, node, False) |
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234 |
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235 def checkheadshook(ui, repo, node, hooktype, **kwargs): |
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236 """verify that files have expected EOLs""" |
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237 _checkhook(ui, repo, node, True) |
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238 |
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239 # "checkheadshook" used to be called "hook" |
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240 hook = checkheadshook |
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241 |
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242 def preupdate(ui, repo, hooktype, parent1, parent2): |
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243 #print "preupdate for %s: %s -> %s" % (repo.root, parent1, parent2) |
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244 repo.loadeol([parent1]) |
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245 return False |
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246 |
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247 def uisetup(ui): |
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248 ui.setconfig('hooks', 'preupdate.eol', preupdate) |
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249 |
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250 def extsetup(ui): |
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251 try: |
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252 extensions.find('win32text') |
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253 ui.warn(_("the eol extension is incompatible with the " |
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254 "win32text extension\n")) |
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255 except KeyError: |
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256 pass |
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257 |
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258 |
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259 def reposetup(ui, repo): |
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260 uisetup(repo.ui) |
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261 #print "reposetup for", repo.root |
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262 |
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263 if not repo.local(): |
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264 return |
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265 for name, fn in filters.iteritems(): |
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266 repo.adddatafilter(name, fn) |
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267 |
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268 ui.setconfig('patch', 'eol', 'auto') |
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269 |
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270 class eolrepo(repo.__class__): |
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271 |
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272 def loadeol(self, nodes): |
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273 eol = parseeol(self.ui, self, nodes) |
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274 if eol is None: |
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275 return None |
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276 eol.setfilters(self.ui) |
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277 return eol.match |
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278 |
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279 def _hgcleardirstate(self): |
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280 self._eolfile = self.loadeol([None, 'tip']) |
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281 if not self._eolfile: |
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282 self._eolfile = util.never |
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283 return |
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284 |
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285 try: |
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286 cachemtime = os.path.getmtime(self.join("eol.cache")) |
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287 except OSError: |
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288 cachemtime = 0 |
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289 |
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290 try: |
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291 eolmtime = os.path.getmtime(self.wjoin(".hgeol")) |
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292 except OSError: |
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293 eolmtime = 0 |
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294 |
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295 if eolmtime > cachemtime: |
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296 ui.debug("eol: detected change in .hgeol\n") |
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297 wlock = None |
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298 try: |
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299 wlock = self.wlock() |
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300 for f in self.dirstate: |
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301 if self.dirstate[f] == 'n': |
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302 # all normal files need to be looked at |
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303 # again since the new .hgeol file might no |
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304 # longer match a file it matched before |
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305 self.dirstate.normallookup(f) |
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306 # Touch the cache to update mtime. |
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307 self.opener("eol.cache", "w").close() |
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308 wlock.release() |
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309 except error.LockUnavailable: |
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310 # If we cannot lock the repository and clear the |
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311 # dirstate, then a commit might not see all files |
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312 # as modified. But if we cannot lock the |
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313 # repository, then we can also not make a commit, |
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314 # so ignore the error. |
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315 pass |
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316 |
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317 def commitctx(self, ctx, error=False): |
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318 for f in sorted(ctx.added() + ctx.modified()): |
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319 if not self._eolfile(f): |
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320 continue |
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321 data = ctx[f].data() |
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322 if util.binary(data): |
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323 # We should not abort here, since the user should |
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324 # be able to say "** = native" to automatically |
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325 # have all non-binary files taken care of. |
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326 continue |
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327 if inconsistenteol(data): |
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328 raise util.Abort(_("inconsistent newline style " |
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329 "in %s\n" % f)) |
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330 return super(eolrepo, self).commitctx(ctx, error) |
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331 repo.__class__ = eolrepo |
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332 repo._hgcleardirstate() |