Mercurial > hg
annotate mercurial/config.py @ 50896:b2b8c25f9462
hgwebmod: use sysstr to check for attribute presence
We do not need bytes here.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Wed, 30 Aug 2023 13:28:09 +0200 |
parents | 642e31cb55f0 |
children | 18c8c18993f0 |
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1 # config.py - configuration parsing for Mercurial |
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2 # |
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3 # Copyright 2009 Olivia Mackall <olivia@selenic.com> and others |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
10263 | 6 # GNU General Public License version 2 or any later version. |
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7 |
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8 |
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9 import errno |
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10 import os |
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11 |
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12 from .i18n import _ |
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13 from .pycompat import getattr |
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14 from . import ( |
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15 encoding, |
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16 error, |
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17 util, |
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18 ) |
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20 |
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21 class config: |
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22 def __init__(self, data=None): |
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23 self._current_source_level = 0 |
8144 | 24 self._data = {} |
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25 self._unset = [] |
8144 | 26 if data: |
27 for k in data._data: | |
28 self._data[k] = data[k].copy() | |
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29 self._current_source_level = data._current_source_level + 1 |
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30 |
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31 def new_source(self): |
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32 """increment the source counter |
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33 |
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34 This is used to define source priority when reading""" |
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35 self._current_source_level += 1 |
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36 |
8144 | 37 def copy(self): |
38 return config(self) | |
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39 |
8144 | 40 def __contains__(self, section): |
41 return section in self._data | |
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42 |
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43 def hasitem(self, section, item): |
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44 return item in self._data.get(section, {}) |
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45 |
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46 def __getitem__(self, section): |
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47 return self._data.get(section, {}) |
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48 |
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49 def __iter__(self): |
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50 for d in self.sections(): |
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51 yield d |
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52 |
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53 def update(self, src): |
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54 current_level = self._current_source_level |
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55 current_level += 1 |
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56 max_level = self._current_source_level |
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57 for s, n in src._unset: |
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58 ds = self._data.get(s, None) |
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59 if ds is not None and n in ds: |
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60 self._data[s] = ds.preparewrite() |
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61 del self._data[s][n] |
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62 for s in src: |
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63 ds = self._data.get(s, None) |
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64 if ds: |
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65 self._data[s] = ds.preparewrite() |
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66 else: |
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67 self._data[s] = util.cowsortdict() |
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68 for k, v in src._data[s].items(): |
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69 value, source, level = v |
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70 level += current_level |
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71 max_level = max(level, current_level) |
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72 self._data[s][k] = (value, source, level) |
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73 self._current_source_level = max_level |
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74 |
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75 def _get(self, section, item): |
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76 return self._data.get(section, {}).get(item) |
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77 |
8144 | 78 def get(self, section, item, default=None): |
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79 result = self._get(section, item) |
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80 if result is None: |
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81 return default |
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82 return result[0] |
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83 |
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84 def backup(self, section, key): |
17527 | 85 """return a tuple allowing restore to reinstall a previous value |
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86 |
17530 | 87 The main reason we need it is because it handles the "no data" case. |
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88 """ |
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89 try: |
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90 item = self._data[section][key] |
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91 except KeyError: |
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92 return (section, key) |
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93 else: |
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94 return (section, key) + item |
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95 |
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96 def source(self, section, item): |
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97 result = self._get(section, item) |
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98 if result is None: |
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99 return b"" |
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100 return result[1] |
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101 |
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102 def level(self, section, item): |
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103 result = self._get(section, item) |
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104 if result is None: |
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105 return None |
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106 return result[2] |
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107 |
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109 return sorted(self._data.keys()) | |
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110 |
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112 items = self._data.get(section, {}).items() |
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113 return [(k, v[0]) for (k, v) in items] |
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114 |
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115 def set(self, section, item, value, source=b""): |
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116 assert not isinstance( |
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117 section, str |
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118 ), b'config section may not be unicode strings on Python 3' |
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119 assert not isinstance( |
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120 item, str |
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121 ), b'config item may not be unicode strings on Python 3' |
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122 assert not isinstance( |
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123 value, str |
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124 ), b'config values may not be unicode strings on Python 3' |
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126 self._data[section] = util.cowsortdict() |
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127 else: |
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128 self._data[section] = self._data[section].preparewrite() |
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129 self._data[section][item] = (value, source, self._current_source_level) |
8144 | 130 |
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131 def alter(self, section, key, new_value): |
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132 """alter a value without altering its source or level |
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133 |
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134 This method is meant to be used by `ui.fixconfig` only.""" |
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135 item = self._data[section][key] |
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136 size = len(item) |
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137 new_item = (new_value,) + item[1:] |
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138 assert len(new_item) == size |
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139 self._data[section][key] = new_item |
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140 |
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141 def restore(self, data): |
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142 """restore data returned by self.backup""" |
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143 if len(data) != 2: |
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144 # restore old data |
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145 section, key = data[:2] |
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146 item = data[2:] |
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147 self._data[section] = self._data[section].preparewrite() |
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148 self._data[section][key] = item |
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149 else: |
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150 # no data before, remove everything |
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151 section, item = data |
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152 if section in self._data: |
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153 self._data[section].pop(item, None) |
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154 |
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155 def parse(self, src, data, sections=None, remap=None, include=None): |
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156 sectionre = util.re.compile(br'\[([^\[]+)\]') |
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157 itemre = util.re.compile(br'([^=\s][^=]*?)\s*=\s*(.*\S|)') |
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158 contre = util.re.compile(br'\s+(\S|\S.*\S)\s*$') |
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159 emptyre = util.re.compile(br'(;|#|\s*$)') |
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160 commentre = util.re.compile(br'(;|#)') |
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161 unsetre = util.re.compile(br'%unset\s+(\S+)') |
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162 includere = util.re.compile(br'%include\s+(\S|\S.*\S)\s*$') |
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163 section = b"" |
8144 | 164 item = None |
165 line = 0 | |
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166 cont = False |
8180 | 167 |
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168 if remap: |
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169 section = remap.get(section, section) |
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170 |
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171 for l in data.splitlines(True): |
8144 | 172 line += 1 |
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173 if line == 1 and l.startswith(b'\xef\xbb\xbf'): |
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174 # Someone set us up the BOM |
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175 l = l[3:] |
8144 | 176 if cont: |
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177 if commentre.match(l): |
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178 continue |
8144 | 179 m = contre.match(l) |
180 if m: | |
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181 if sections and section not in sections: |
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182 continue |
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183 v = self.get(section, item) + b"\n" + m.group(1) |
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184 self.set(section, item, v, b"%s:%d" % (src, line)) |
8144 | 185 continue |
186 item = None | |
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187 cont = False |
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188 m = includere.match(l) |
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189 |
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190 if m and include: |
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191 expanded = util.expandpath(m.group(1)) |
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192 try: |
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193 include(expanded, remap=remap, sections=sections) |
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194 except IOError as inst: |
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195 if inst.errno != errno.ENOENT: |
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196 raise error.ConfigError( |
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197 _(b"cannot include %s (%s)") |
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198 % (expanded, encoding.strtolocal(inst.strerror)), |
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199 b"%s:%d" % (src, line), |
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200 ) |
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201 continue |
8144 | 202 if emptyre.match(l): |
203 continue | |
204 m = sectionre.match(l) | |
205 if m: | |
206 section = m.group(1) | |
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207 if remap: |
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208 section = remap.get(section, section) |
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210 self._data[section] = util.cowsortdict() |
8144 | 211 continue |
212 m = itemre.match(l) | |
213 if m: | |
214 item = m.group(1) | |
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215 cont = True |
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216 if sections and section not in sections: |
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217 continue |
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218 self.set(section, item, m.group(2), b"%s:%d" % (src, line)) |
8144 | 219 continue |
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220 m = unsetre.match(l) |
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221 if m: |
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222 name = m.group(1) |
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223 if sections and section not in sections: |
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224 continue |
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225 if self.get(section, name) is not None: |
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226 self._data[section] = self._data[section].preparewrite() |
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227 del self._data[section][name] |
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228 self._unset.append((section, name)) |
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229 continue |
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230 |
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231 message = l.rstrip() |
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232 if l.startswith(b' '): |
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233 message = b"unexpected leading whitespace: %s" % message |
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234 raise error.ConfigError(message, (b"%s:%d" % (src, line))) |
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235 |
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236 def read(self, path, fp=None, sections=None, remap=None): |
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237 self.new_source() |
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238 if not fp: |
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239 fp = util.posixfile(path, b'rb') |
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240 assert ( |
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241 getattr(fp, 'mode', 'rb') == 'rb' |
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242 ), b'config files must be opened in binary mode, got fp=%r mode=%r' % ( |
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243 fp, |
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244 fp.mode, |
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245 ) |
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246 |
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247 dir = os.path.dirname(path) |
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248 |
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249 def include(rel, remap, sections): |
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250 abs = os.path.normpath(os.path.join(dir, rel)) |
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251 self.read(abs, remap=remap, sections=sections) |
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252 # anything after the include has a higher level |
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253 self.new_source() |
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254 |
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255 self.parse( |
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256 path, fp.read(), sections=sections, remap=remap, include=include |
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257 ) |