Mercurial > hg
annotate mercurial/config.py @ 45548:25e365d5aa8f
rebase: add dryrun property to rebaseruntime
I want to be able to check the property in
`rebaseruntime._rebasenode()`. Passing the value via the runtime is a
convenient way.
Differential Revision: https://phab.mercurial-scm.org/D9074
author | Martin von Zweigbergk <martinvonz@google.com> |
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date | Fri, 18 Sep 2020 15:40:26 -0700 |
parents | 668af67bfd18 |
children | 0883413e09bc |
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1 # config.py - configuration parsing for Mercurial |
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2 # |
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3 # Copyright 2009 Matt Mackall <mpm@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 ) |
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22 |
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23 class config(object): |
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24 def __init__(self, data=None): |
8144 | 25 self._data = {} |
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26 self._unset = [] |
8144 | 27 if data: |
28 for k in data._data: | |
29 self._data[k] = data[k].copy() | |
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30 self._source = data._source.copy() |
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31 else: |
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32 self._source = util.cowdict() |
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33 |
8144 | 34 def copy(self): |
35 return config(self) | |
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36 |
8144 | 37 def __contains__(self, section): |
38 return section in self._data | |
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39 |
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40 def hasitem(self, section, item): |
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41 return item in self._data.get(section, {}) |
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42 |
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43 def __getitem__(self, section): |
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44 return self._data.get(section, {}) |
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45 |
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46 def __iter__(self): |
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47 for d in self.sections(): |
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48 yield d |
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49 |
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50 def update(self, src): |
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51 self._source = self._source.preparewrite() |
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52 for s, n in src._unset: |
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53 ds = self._data.get(s, None) |
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54 if ds is not None and n in ds: |
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55 self._data[s] = ds.preparewrite() |
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56 del self._data[s][n] |
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57 del self._source[(s, n)] |
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58 for s in src: |
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59 ds = self._data.get(s, None) |
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60 if ds: |
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61 self._data[s] = ds.preparewrite() |
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62 else: |
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63 self._data[s] = util.cowsortdict() |
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64 self._data[s].update(src._data[s]) |
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65 self._source.update(src._source) |
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66 |
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68 return self._data.get(section, {}).get(item, default) |
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69 |
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70 def backup(self, section, item): |
17527 | 71 """return a tuple allowing restore to reinstall a previous value |
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72 |
17530 | 73 The main reason we need it is because it handles the "no data" case. |
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74 """ |
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75 try: |
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76 value = self._data[section][item] |
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77 source = self.source(section, item) |
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78 return (section, item, value, source) |
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79 except KeyError: |
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80 return (section, item) |
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81 |
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82 def source(self, section, item): |
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83 return self._source.get((section, item), b"") |
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84 |
8144 | 85 def sections(self): |
86 return sorted(self._data.keys()) | |
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87 |
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89 return list(pycompat.iteritems(self._data.get(section, {}))) |
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90 |
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91 def set(self, section, item, value, source=b""): |
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92 if pycompat.ispy3: |
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93 assert not isinstance( |
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94 section, str |
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95 ), b'config section may not be unicode strings on Python 3' |
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96 assert not isinstance( |
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97 item, str |
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98 ), b'config item may not be unicode strings on Python 3' |
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99 assert not isinstance( |
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100 value, str |
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101 ), b'config values may not be unicode strings on Python 3' |
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103 self._data[section] = util.cowsortdict() |
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104 else: |
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105 self._data[section] = self._data[section].preparewrite() |
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106 self._data[section][item] = value |
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107 if source: |
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108 self._source = self._source.preparewrite() |
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109 self._source[(section, item)] = source |
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111 def restore(self, data): |
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112 """restore data returned by self.backup""" |
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113 self._source = self._source.preparewrite() |
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114 if len(data) == 4: |
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115 # restore old data |
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116 section, item, value, source = data |
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117 self._data[section] = self._data[section].preparewrite() |
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118 self._data[section][item] = value |
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119 self._source[(section, item)] = source |
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120 else: |
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121 # no data before, remove everything |
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122 section, item = data |
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123 if section in self._data: |
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124 self._data[section].pop(item, None) |
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125 self._source.pop((section, item), None) |
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126 |
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127 def parse(self, src, data, sections=None, remap=None, include=None): |
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128 sectionre = util.re.compile(br'\[([^\[]+)\]') |
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129 itemre = util.re.compile(br'([^=\s][^=]*?)\s*=\s*(.*\S|)') |
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130 contre = util.re.compile(br'\s+(\S|\S.*\S)\s*$') |
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131 emptyre = util.re.compile(br'(;|#|\s*$)') |
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132 commentre = util.re.compile(br'(;|#)') |
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133 unsetre = util.re.compile(br'%unset\s+(\S+)') |
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134 includere = util.re.compile(br'%include\s+(\S|\S.*\S)\s*$') |
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135 section = b"" |
8144 | 136 item = None |
137 line = 0 | |
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138 cont = False |
8180 | 139 |
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140 if remap: |
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141 section = remap.get(section, section) |
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142 |
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143 for l in data.splitlines(True): |
8144 | 144 line += 1 |
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145 if line == 1 and l.startswith(b'\xef\xbb\xbf'): |
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146 # Someone set us up the BOM |
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147 l = l[3:] |
8144 | 148 if cont: |
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149 if commentre.match(l): |
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150 continue |
8144 | 151 m = contre.match(l) |
152 if m: | |
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153 if sections and section not in sections: |
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154 continue |
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155 v = self.get(section, item) + b"\n" + m.group(1) |
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156 self.set(section, item, v, b"%s:%d" % (src, line)) |
8144 | 157 continue |
158 item = None | |
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159 cont = False |
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160 m = includere.match(l) |
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161 |
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162 if m and include: |
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163 expanded = util.expandpath(m.group(1)) |
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164 try: |
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165 include(expanded, remap=remap, sections=sections) |
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166 except IOError as inst: |
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167 if inst.errno != errno.ENOENT: |
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168 raise error.ParseError( |
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169 _(b"cannot include %s (%s)") |
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170 % (expanded, encoding.strtolocal(inst.strerror)), |
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171 b"%s:%d" % (src, line), |
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172 ) |
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173 continue |
8144 | 174 if emptyre.match(l): |
175 continue | |
176 m = sectionre.match(l) | |
177 if m: | |
178 section = m.group(1) | |
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179 if remap: |
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180 section = remap.get(section, section) |
8144 | 181 if section not in self: |
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182 self._data[section] = util.cowsortdict() |
8144 | 183 continue |
184 m = itemre.match(l) | |
185 if m: | |
186 item = m.group(1) | |
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187 cont = True |
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188 if sections and section not in sections: |
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189 continue |
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190 self.set(section, item, m.group(2), b"%s:%d" % (src, line)) |
8144 | 191 continue |
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192 m = unsetre.match(l) |
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193 if m: |
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194 name = m.group(1) |
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195 if sections and section not in sections: |
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196 continue |
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197 if self.get(section, name) is not None: |
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198 self._data[section] = self._data[section].preparewrite() |
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199 del self._data[section][name] |
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200 self._unset.append((section, name)) |
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201 continue |
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202 |
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203 raise error.ParseError(l.rstrip(), (b"%s:%d" % (src, line))) |
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204 |
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205 def read(self, path, fp=None, sections=None, remap=None): |
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206 if not fp: |
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207 fp = util.posixfile(path, b'rb') |
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208 assert getattr(fp, 'mode', 'rb') == 'rb', ( |
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209 b'config files must be opened in binary mode, got fp=%r mode=%r' |
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210 % (fp, fp.mode,) |
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211 ) |
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212 |
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213 dir = os.path.dirname(path) |
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214 |
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215 def include(rel, remap, sections): |
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216 abs = os.path.normpath(os.path.join(dir, rel)) |
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217 self.read(abs, remap=remap, sections=sections) |
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218 |
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219 self.parse( |
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220 path, fp.read(), sections=sections, remap=remap, include=include |
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221 ) |
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222 |
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223 |
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224 def parselist(value): |
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225 """parse a configuration value as a list of comma/space separated strings |
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226 |
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227 >>> parselist(b'this,is "a small" ,test') |
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228 ['this', 'is', 'a small', 'test'] |
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229 """ |
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230 |
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231 def _parse_plain(parts, s, offset): |
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232 whitespace = False |
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233 while offset < len(s) and ( |
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234 s[offset : offset + 1].isspace() or s[offset : offset + 1] == b',' |
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235 ): |
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236 whitespace = True |
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237 offset += 1 |
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238 if offset >= len(s): |
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239 return None, parts, offset |
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240 if whitespace: |
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241 parts.append(b'') |
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242 if s[offset : offset + 1] == b'"' and not parts[-1]: |
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243 return _parse_quote, parts, offset + 1 |
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244 elif s[offset : offset + 1] == b'"' and parts[-1][-1:] == b'\\': |
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245 parts[-1] = parts[-1][:-1] + s[offset : offset + 1] |
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246 return _parse_plain, parts, offset + 1 |
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247 parts[-1] += s[offset : offset + 1] |
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248 return _parse_plain, parts, offset + 1 |
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249 |
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250 def _parse_quote(parts, s, offset): |
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251 if offset < len(s) and s[offset : offset + 1] == b'"': # "" |
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252 parts.append(b'') |
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253 offset += 1 |
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254 while offset < len(s) and ( |
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255 s[offset : offset + 1].isspace() |
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256 or s[offset : offset + 1] == b',' |
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257 ): |
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258 offset += 1 |
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259 return _parse_plain, parts, offset |
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260 |
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261 while offset < len(s) and s[offset : offset + 1] != b'"': |
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262 if ( |
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263 s[offset : offset + 1] == b'\\' |
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264 and offset + 1 < len(s) |
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265 and s[offset + 1 : offset + 2] == b'"' |
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266 ): |
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267 offset += 1 |
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268 parts[-1] += b'"' |
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269 else: |
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270 parts[-1] += s[offset : offset + 1] |
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271 offset += 1 |
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272 |
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273 if offset >= len(s): |
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274 real_parts = _configlist(parts[-1]) |
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275 if not real_parts: |
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276 parts[-1] = b'"' |
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277 else: |
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278 real_parts[0] = b'"' + real_parts[0] |
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279 parts = parts[:-1] |
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280 parts.extend(real_parts) |
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281 return None, parts, offset |
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282 |
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283 offset += 1 |
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284 while offset < len(s) and s[offset : offset + 1] in [b' ', b',']: |
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285 offset += 1 |
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286 |
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287 if offset < len(s): |
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288 if offset + 1 == len(s) and s[offset : offset + 1] == b'"': |
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289 parts[-1] += b'"' |
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290 offset += 1 |
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291 else: |
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292 parts.append(b'') |
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293 else: |
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294 return None, parts, offset |
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295 |
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296 return _parse_plain, parts, offset |
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297 |
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298 def _configlist(s): |
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299 s = s.rstrip(b' ,') |
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300 if not s: |
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301 return [] |
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302 parser, parts, offset = _parse_plain, [b''], 0 |
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303 while parser: |
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304 parser, parts, offset = parser(parts, s, offset) |
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305 return parts |
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306 |
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307 if value is not None and isinstance(value, bytes): |
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308 result = _configlist(value.lstrip(b' ,\n')) |
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309 else: |
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310 result = value |
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311 return result or [] |