Mercurial > hg
annotate mercurial/config.py @ 48365:67064c238ae7
errors: use detailed exit code for non-integer number of diff context lines
Differential Revision: https://phab.mercurial-scm.org/D11826
author | Martin von Zweigbergk <martinvonz@google.com> |
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date | Fri, 19 Nov 2021 15:38:36 -0800 |
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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 from __future__ import absolute_import |
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9 |
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10 import errno |
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11 import os |
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12 |
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13 from .i18n import _ |
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14 from .pycompat import getattr |
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15 from . import ( |
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16 encoding, |
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17 error, |
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18 pycompat, |
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19 util, |
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20 ) |
8144 | 21 |
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22 |
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23 class config(object): |
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24 def __init__(self, data=None): |
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25 self._current_source_level = 0 |
8144 | 26 self._data = {} |
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27 self._unset = [] |
8144 | 28 if data: |
29 for k in data._data: | |
30 self._data[k] = data[k].copy() | |
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31 self._current_source_level = data._current_source_level + 1 |
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32 |
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33 def new_source(self): |
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34 """increment the source counter |
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35 |
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36 This is used to define source priority when reading""" |
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37 self._current_source_level += 1 |
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38 |
8144 | 39 def copy(self): |
40 return config(self) | |
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41 |
8144 | 42 def __contains__(self, section): |
43 return section in self._data | |
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44 |
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45 def hasitem(self, section, item): |
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46 return item in self._data.get(section, {}) |
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47 |
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48 def __getitem__(self, section): |
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49 return self._data.get(section, {}) |
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50 |
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51 def __iter__(self): |
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52 for d in self.sections(): |
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53 yield d |
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54 |
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55 def update(self, src): |
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56 current_level = self._current_source_level |
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57 current_level += 1 |
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58 max_level = self._current_source_level |
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59 for s, n in src._unset: |
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60 ds = self._data.get(s, None) |
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61 if ds is not None and n in ds: |
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62 self._data[s] = ds.preparewrite() |
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63 del self._data[s][n] |
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64 for s in src: |
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65 ds = self._data.get(s, None) |
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66 if ds: |
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67 self._data[s] = ds.preparewrite() |
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68 else: |
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69 self._data[s] = util.cowsortdict() |
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70 for k, v in src._data[s].items(): |
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71 value, source, level = v |
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72 level += current_level |
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73 max_level = max(level, current_level) |
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74 self._data[s][k] = (value, source, level) |
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75 self._current_source_level = max_level |
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76 |
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77 def _get(self, section, item): |
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78 return self._data.get(section, {}).get(item) |
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79 |
8144 | 80 def get(self, section, item, default=None): |
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81 result = self._get(section, item) |
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82 if result is None: |
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83 return default |
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84 return result[0] |
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85 |
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86 def backup(self, section, key): |
17527 | 87 """return a tuple allowing restore to reinstall a previous value |
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88 |
17530 | 89 The main reason we need it is because it handles the "no data" case. |
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90 """ |
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91 try: |
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92 item = self._data[section][key] |
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93 except KeyError: |
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94 return (section, key) |
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95 else: |
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96 return (section, key) + item |
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97 |
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98 def source(self, section, item): |
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99 result = self._get(section, item) |
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100 if result is None: |
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101 return b"" |
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102 return result[1] |
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103 |
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104 def level(self, section, item): |
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105 result = self._get(section, item) |
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106 if result is None: |
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107 return None |
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108 return result[2] |
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109 |
8144 | 110 def sections(self): |
111 return sorted(self._data.keys()) | |
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112 |
8144 | 113 def items(self, section): |
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114 items = pycompat.iteritems(self._data.get(section, {})) |
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115 return [(k, v[0]) for (k, v) in items] |
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116 |
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117 def set(self, section, item, value, source=b""): |
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118 if pycompat.ispy3: |
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119 assert not isinstance( |
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120 section, str |
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121 ), b'config section may not be unicode strings on Python 3' |
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122 assert not isinstance( |
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123 item, str |
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124 ), b'config item may not be unicode strings on Python 3' |
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125 assert not isinstance( |
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126 value, str |
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127 ), b'config values may not be unicode strings on Python 3' |
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129 self._data[section] = util.cowsortdict() |
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130 else: |
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131 self._data[section] = self._data[section].preparewrite() |
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132 self._data[section][item] = (value, source, self._current_source_level) |
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134 def alter(self, section, key, new_value): |
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135 """alter a value without altering its source or level |
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136 |
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137 This method is meant to be used by `ui.fixconfig` only.""" |
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138 item = self._data[section][key] |
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139 size = len(item) |
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140 new_item = (new_value,) + item[1:] |
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141 assert len(new_item) == size |
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142 self._data[section][key] = new_item |
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143 |
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144 def restore(self, data): |
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145 """restore data returned by self.backup""" |
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146 if len(data) != 2: |
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147 # restore old data |
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148 section, key = data[:2] |
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149 item = data[2:] |
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150 self._data[section] = self._data[section].preparewrite() |
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151 self._data[section][key] = item |
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152 else: |
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153 # no data before, remove everything |
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154 section, item = data |
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155 if section in self._data: |
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156 self._data[section].pop(item, None) |
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157 |
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158 def parse(self, src, data, sections=None, remap=None, include=None): |
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159 sectionre = util.re.compile(br'\[([^\[]+)\]') |
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160 itemre = util.re.compile(br'([^=\s][^=]*?)\s*=\s*(.*\S|)') |
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161 contre = util.re.compile(br'\s+(\S|\S.*\S)\s*$') |
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162 emptyre = util.re.compile(br'(;|#|\s*$)') |
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163 commentre = util.re.compile(br'(;|#)') |
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164 unsetre = util.re.compile(br'%unset\s+(\S+)') |
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165 includere = util.re.compile(br'%include\s+(\S|\S.*\S)\s*$') |
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166 section = b"" |
8144 | 167 item = None |
168 line = 0 | |
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169 cont = False |
8180 | 170 |
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171 if remap: |
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172 section = remap.get(section, section) |
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173 |
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174 for l in data.splitlines(True): |
8144 | 175 line += 1 |
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176 if line == 1 and l.startswith(b'\xef\xbb\xbf'): |
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177 # Someone set us up the BOM |
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178 l = l[3:] |
8144 | 179 if cont: |
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180 if commentre.match(l): |
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181 continue |
8144 | 182 m = contre.match(l) |
183 if m: | |
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184 if sections and section not in sections: |
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185 continue |
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186 v = self.get(section, item) + b"\n" + m.group(1) |
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187 self.set(section, item, v, b"%s:%d" % (src, line)) |
8144 | 188 continue |
189 item = None | |
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190 cont = False |
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191 m = includere.match(l) |
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192 |
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193 if m and include: |
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194 expanded = util.expandpath(m.group(1)) |
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195 try: |
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196 include(expanded, remap=remap, sections=sections) |
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197 except IOError as inst: |
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198 if inst.errno != errno.ENOENT: |
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199 raise error.ConfigError( |
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200 _(b"cannot include %s (%s)") |
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201 % (expanded, encoding.strtolocal(inst.strerror)), |
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202 b"%s:%d" % (src, line), |
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203 ) |
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204 continue |
8144 | 205 if emptyre.match(l): |
206 continue | |
207 m = sectionre.match(l) | |
208 if m: | |
209 section = m.group(1) | |
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210 if remap: |
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211 section = remap.get(section, section) |
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213 self._data[section] = util.cowsortdict() |
8144 | 214 continue |
215 m = itemre.match(l) | |
216 if m: | |
217 item = m.group(1) | |
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218 cont = True |
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219 if sections and section not in sections: |
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220 continue |
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221 self.set(section, item, m.group(2), b"%s:%d" % (src, line)) |
8144 | 222 continue |
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223 m = unsetre.match(l) |
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224 if m: |
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225 name = m.group(1) |
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226 if sections and section not in sections: |
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227 continue |
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228 if self.get(section, name) is not None: |
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229 self._data[section] = self._data[section].preparewrite() |
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230 del self._data[section][name] |
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231 self._unset.append((section, name)) |
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232 continue |
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233 |
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234 message = l.rstrip() |
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235 if l.startswith(b' '): |
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236 message = b"unexpected leading whitespace: %s" % message |
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237 raise error.ConfigError(message, (b"%s:%d" % (src, line))) |
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238 |
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239 def read(self, path, fp=None, sections=None, remap=None): |
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240 self.new_source() |
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241 if not fp: |
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242 fp = util.posixfile(path, b'rb') |
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243 assert ( |
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244 getattr(fp, 'mode', 'rb') == 'rb' |
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245 ), b'config files must be opened in binary mode, got fp=%r mode=%r' % ( |
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246 fp, |
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247 fp.mode, |
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248 ) |
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249 |
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250 dir = os.path.dirname(path) |
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251 |
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252 def include(rel, remap, sections): |
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253 abs = os.path.normpath(os.path.join(dir, rel)) |
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254 self.read(abs, remap=remap, sections=sections) |
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255 # anything after the include has a higher level |
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256 self.new_source() |
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Martin von Zweigbergk <martinvonz@google.com>
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257 |
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Augie Fackler <augie@google.com>
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258 self.parse( |
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Martin von Zweigbergk <martinvonz@google.com>
parents:
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259 path, fp.read(), sections=sections, remap=remap, include=include |
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Augie Fackler <augie@google.com>
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260 ) |