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annotate mercurial/config.py @ 49037:642e31cb55f0

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py3: use class X: instead of class X(object): The inheritance from object is implied in Python 3. So this should be equivalent. This change was generated via an automated search and replace. So there may have been some accidental changes. Differential Revision: https://phab.mercurial-scm.org/D12352
author Gregory Szorc <gregory.szorc@gmail.com>
date Mon, 21 Feb 2022 13:08:28 -0700
parents b4ab4fd23199
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
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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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19
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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
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24 self._data = {}
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25 self._unset = []
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26 if data:
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27 for k in data._data:
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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
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37 def copy(self):
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38 return config(self)
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39
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40 def __contains__(self, section):
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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
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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):
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85 """return a tuple allowing restore to reinstall a previous value
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86
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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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108 def sections(self):
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109 return sorted(self._data.keys())
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110
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111 def items(self, section):
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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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125 if section not in self:
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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)
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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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diff changeset
135 item = self._data[section][key]
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parents: 45957
diff changeset
136 size = len(item)
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parents: 45957
diff changeset
137 new_item = (new_value,) + item[1:]
7621ab4005bf config: use a new `alter` method in `fixconfig`
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parents: 45957
diff changeset
138 assert len(new_item) == size
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parents: 45957
diff changeset
139 self._data[section][key] = new_item
7621ab4005bf config: use a new `alter` method in `fixconfig`
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 45957
diff changeset
140
15919
69e792cf7851 config: have a way to backup and restore value in config
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 14696
diff changeset
141 def restore(self, data):
69e792cf7851 config: have a way to backup and restore value in config
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 14696
diff changeset
142 """restore data returned by self.backup"""
46660
d3df397e7a59 config: track "source" along side value
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 46659
diff changeset
143 if len(data) != 2:
15919
69e792cf7851 config: have a way to backup and restore value in config
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diff changeset
144 # restore old data
46660
d3df397e7a59 config: track "source" along side value
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parents: 46659
diff changeset
145 section, key = data[:2]
d3df397e7a59 config: track "source" along side value
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 46659
diff changeset
146 item = data[2:]
34358
c41444a39de2 config: use copy-on-write to improve copy performance
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parents: 34146
diff changeset
147 self._data[section] = self._data[section].preparewrite()
46660
d3df397e7a59 config: track "source" along side value
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parents: 46659
diff changeset
148 self._data[section][key] = item
15919
69e792cf7851 config: have a way to backup and restore value in config
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parents: 14696
diff changeset
149 else:
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parents: 14696
diff changeset
150 # no data before, remove everything
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parents: 14696
diff changeset
151 section, item = data
69e792cf7851 config: have a way to backup and restore value in config
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 14696
diff changeset
152 if section in self._data:
22037
8665c647da6e config: fix restoreconfig of non existing config
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 21910
diff changeset
153 self._data[section].pop(item, None)
15919
69e792cf7851 config: have a way to backup and restore value in config
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parents: 14696
diff changeset
154
8265
52c5be55af82 config: add parse interface
Matt Mackall <mpm@selenic.com>
parents: 8263
diff changeset
155 def parse(self, src, data, sections=None, remap=None, include=None):
30359
954002426f78 config: mark parser regexes as bytes explicitly
Augie Fackler <augie@google.com>
parents: 27696
diff changeset
156 sectionre = util.re.compile(br'\[([^\[]+)\]')
954002426f78 config: mark parser regexes as bytes explicitly
Augie Fackler <augie@google.com>
parents: 27696
diff changeset
157 itemre = util.re.compile(br'([^=\s][^=]*?)\s*=\s*(.*\S|)')
954002426f78 config: mark parser regexes as bytes explicitly
Augie Fackler <augie@google.com>
parents: 27696
diff changeset
158 contre = util.re.compile(br'\s+(\S|\S.*\S)\s*$')
954002426f78 config: mark parser regexes as bytes explicitly
Augie Fackler <augie@google.com>
parents: 27696
diff changeset
159 emptyre = util.re.compile(br'(;|#|\s*$)')
954002426f78 config: mark parser regexes as bytes explicitly
Augie Fackler <augie@google.com>
parents: 27696
diff changeset
160 commentre = util.re.compile(br'(;|#)')
954002426f78 config: mark parser regexes as bytes explicitly
Augie Fackler <augie@google.com>
parents: 27696
diff changeset
161 unsetre = util.re.compile(br'%unset\s+(\S+)')
954002426f78 config: mark parser regexes as bytes explicitly
Augie Fackler <augie@google.com>
parents: 27696
diff changeset
162 includere = util.re.compile(br'%include\s+(\S|\S.*\S)\s*$')
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
163 section = b""
8144
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parents:
diff changeset
164 item = None
fca54469480e ui: introduce new config parser
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parents:
diff changeset
165 line = 0
9339
9be91129c96e config: improve code readability
Andrey <py4fun@gmail.com>
parents: 9136
diff changeset
166 cont = False
8180
6fc30fe7f3e7 hgweb: use config.config
Matt Mackall <mpm@selenic.com>
parents: 8144
diff changeset
167
34713
e5a2cfc524d4 config: allow remapping the default section
Yuya Nishihara <yuya@tcha.org>
parents: 34455
diff changeset
168 if remap:
e5a2cfc524d4 config: allow remapping the default section
Yuya Nishihara <yuya@tcha.org>
parents: 34455
diff changeset
169 section = remap.get(section, section)
e5a2cfc524d4 config: allow remapping the default section
Yuya Nishihara <yuya@tcha.org>
parents: 34455
diff changeset
170
9136
31177742f54a for calls expecting bool args, pass bool instead of int
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 8312
diff changeset
171 for l in data.splitlines(True):
8144
fca54469480e ui: introduce new config parser
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parents:
diff changeset
172 line += 1
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
173 if line == 1 and l.startswith(b'\xef\xbb\xbf'):
16348
f350021ee32e config: discard UTF-8 BOM if found
Matt Mackall <mpm@selenic.com>
parents: 15919
diff changeset
174 # Someone set us up the BOM
f350021ee32e config: discard UTF-8 BOM if found
Matt Mackall <mpm@selenic.com>
parents: 15919
diff changeset
175 l = l[3:]
8144
fca54469480e ui: introduce new config parser
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parents:
diff changeset
176 if cont:
14642
fdcdb221a922 config: handle comment lines in continuations (issue2854)
Matt Mackall <mpm@selenic.com>
parents: 14486
diff changeset
177 if commentre.match(l):
fdcdb221a922 config: handle comment lines in continuations (issue2854)
Matt Mackall <mpm@selenic.com>
parents: 14486
diff changeset
178 continue
8144
fca54469480e ui: introduce new config parser
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parents:
diff changeset
179 m = contre.match(l)
fca54469480e ui: introduce new config parser
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parents:
diff changeset
180 if m:
8193
94246e90081e config: add section filter to read
Matt Mackall <mpm@selenic.com>
parents: 8192
diff changeset
181 if sections and section not in sections:
94246e90081e config: add section filter to read
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parents: 8192
diff changeset
182 continue
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
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parents: 43076
diff changeset
183 v = self.get(section, item) + b"\n" + m.group(1)
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
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parents: 43076
diff changeset
184 self.set(section, item, v, b"%s:%d" % (src, line))
8144
fca54469480e ui: introduce new config parser
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parents:
diff changeset
185 continue
fca54469480e ui: introduce new config parser
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parents:
diff changeset
186 item = None
9469
7f0f882af23d config: abort on indented non-continuation lines (issue1829)
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 8312
diff changeset
187 cont = False
8183
2858ab754995 config: allow including other config files
Matt Mackall <mpm@selenic.com>
parents: 8180
diff changeset
188 m = includere.match(l)
25095
3182965b3971 config: give it an includepaths option for looking for config files
Jordi Guti?rrez Hermoso <jordigh@octave.org>
parents: 22419
diff changeset
189
3182965b3971 config: give it an includepaths option for looking for config files
Jordi Guti?rrez Hermoso <jordigh@octave.org>
parents: 22419
diff changeset
190 if m and include:
3182965b3971 config: give it an includepaths option for looking for config files
Jordi Guti?rrez Hermoso <jordigh@octave.org>
parents: 22419
diff changeset
191 expanded = util.expandpath(m.group(1))
45278
3f54242781e9 config: remove now-unused support for "includepaths"
Martin von Zweigbergk <martinvonz@google.com>
parents: 45244
diff changeset
192 try:
45281
668af67bfd18 config: remove now-unused `abs` argument from `include` callback
Martin von Zweigbergk <martinvonz@google.com>
parents: 45280
diff changeset
193 include(expanded, remap=remap, sections=sections)
45278
3f54242781e9 config: remove now-unused support for "includepaths"
Martin von Zweigbergk <martinvonz@google.com>
parents: 45244
diff changeset
194 except IOError as inst:
3f54242781e9 config: remove now-unused support for "includepaths"
Martin von Zweigbergk <martinvonz@google.com>
parents: 45244
diff changeset
195 if inst.errno != errno.ENOENT:
45909
9dc1351d0b5f errors: raise ConfigError on failure to parse config file
Martin von Zweigbergk <martinvonz@google.com>
parents: 45800
diff changeset
196 raise error.ConfigError(
45278
3f54242781e9 config: remove now-unused support for "includepaths"
Martin von Zweigbergk <martinvonz@google.com>
parents: 45244
diff changeset
197 _(b"cannot include %s (%s)")
45281
668af67bfd18 config: remove now-unused `abs` argument from `include` callback
Martin von Zweigbergk <martinvonz@google.com>
parents: 45280
diff changeset
198 % (expanded, encoding.strtolocal(inst.strerror)),
45278
3f54242781e9 config: remove now-unused support for "includepaths"
Martin von Zweigbergk <martinvonz@google.com>
parents: 45244
diff changeset
199 b"%s:%d" % (src, line),
3f54242781e9 config: remove now-unused support for "includepaths"
Martin von Zweigbergk <martinvonz@google.com>
parents: 45244
diff changeset
200 )
8183
2858ab754995 config: allow including other config files
Matt Mackall <mpm@selenic.com>
parents: 8180
diff changeset
201 continue
8144
fca54469480e ui: introduce new config parser
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parents:
diff changeset
202 if emptyre.match(l):
fca54469480e ui: introduce new config parser
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
203 continue
fca54469480e ui: introduce new config parser
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
204 m = sectionre.match(l)
fca54469480e ui: introduce new config parser
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parents:
diff changeset
205 if m:
fca54469480e ui: introduce new config parser
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parents:
diff changeset
206 section = m.group(1)
8298
9542f4c3fa1b config: make remap actually work
Matt Mackall <mpm@selenic.com>
parents: 8265
diff changeset
207 if remap:
9542f4c3fa1b config: make remap actually work
Matt Mackall <mpm@selenic.com>
parents: 8265
diff changeset
208 section = remap.get(section, section)
8144
fca54469480e ui: introduce new config parser
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parents:
diff changeset
209 if section not in self:
34358
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34146
diff changeset
210 self._data[section] = util.cowsortdict()
8144
fca54469480e ui: introduce new config parser
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parents:
diff changeset
211 continue
fca54469480e ui: introduce new config parser
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
212 m = itemre.match(l)
fca54469480e ui: introduce new config parser
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parents:
diff changeset
213 if m:
fca54469480e ui: introduce new config parser
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parents:
diff changeset
214 item = m.group(1)
9339
9be91129c96e config: improve code readability
Andrey <py4fun@gmail.com>
parents: 9136
diff changeset
215 cont = True
8193
94246e90081e config: add section filter to read
Matt Mackall <mpm@selenic.com>
parents: 8192
diff changeset
216 if sections and section not in sections:
94246e90081e config: add section filter to read
Matt Mackall <mpm@selenic.com>
parents: 8192
diff changeset
217 continue
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
218 self.set(section, item, m.group(2), b"%s:%d" % (src, line))
8144
fca54469480e ui: introduce new config parser
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
219 continue
8184
9189afe1eba3 config: add %unset name support
Matt Mackall <mpm@selenic.com>
parents: 8183
diff changeset
220 m = unsetre.match(l)
9189afe1eba3 config: add %unset name support
Matt Mackall <mpm@selenic.com>
parents: 8183
diff changeset
221 if m:
9189afe1eba3 config: add %unset name support
Matt Mackall <mpm@selenic.com>
parents: 8183
diff changeset
222 name = m.group(1)
8193
94246e90081e config: add section filter to read
Matt Mackall <mpm@selenic.com>
parents: 8192
diff changeset
223 if sections and section not in sections:
94246e90081e config: add section filter to read
Matt Mackall <mpm@selenic.com>
parents: 8192
diff changeset
224 continue
13031
3da456d0c885 code style: prefer 'is' and 'is not' tests with singletons
Martin Geisler <mg@aragost.com>
parents: 11292
diff changeset
225 if self.get(section, name) is not None:
34455
0efdfb57b05c config: add a missing preparewrite() call
Jun Wu <quark@fb.com>
parents: 34358
diff changeset
226 self._data[section] = self._data[section].preparewrite()
8184
9189afe1eba3 config: add %unset name support
Matt Mackall <mpm@selenic.com>
parents: 8183
diff changeset
227 del self._data[section][name]
19087
7d82ad4b3727 config: discard "%unset" values defined in the other files read in previously
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 17537
diff changeset
228 self._unset.append((section, name))
8184
9189afe1eba3 config: add %unset name support
Matt Mackall <mpm@selenic.com>
parents: 8183
diff changeset
229 continue
9189afe1eba3 config: add %unset name support
Matt Mackall <mpm@selenic.com>
parents: 8183
diff changeset
230
45800
0883413e09bc config: move message about leading spaces in config to config.py
Martin von Zweigbergk <martinvonz@google.com>
parents: 45281
diff changeset
231 message = l.rstrip()
0883413e09bc config: move message about leading spaces in config to config.py
Martin von Zweigbergk <martinvonz@google.com>
parents: 45281
diff changeset
232 if l.startswith(b' '):
0883413e09bc config: move message about leading spaces in config to config.py
Martin von Zweigbergk <martinvonz@google.com>
parents: 45281
diff changeset
233 message = b"unexpected leading whitespace: %s" % message
45909
9dc1351d0b5f errors: raise ConfigError on failure to parse config file
Martin von Zweigbergk <martinvonz@google.com>
parents: 45800
diff changeset
234 raise error.ConfigError(message, (b"%s:%d" % (src, line)))
8265
52c5be55af82 config: add parse interface
Matt Mackall <mpm@selenic.com>
parents: 8263
diff changeset
235
52c5be55af82 config: add parse interface
Matt Mackall <mpm@selenic.com>
parents: 8263
diff changeset
236 def read(self, path, fp=None, sections=None, remap=None):
46661
a3dced4b7b04 config: track the "level" of a value
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 46660
diff changeset
237 self.new_source()
8265
52c5be55af82 config: add parse interface
Matt Mackall <mpm@selenic.com>
parents: 8263
diff changeset
238 if not fp:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
239 fp = util.posixfile(path, b'rb')
45957
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 45909
diff changeset
240 assert (
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 45909
diff changeset
241 getattr(fp, 'mode', 'rb') == 'rb'
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 45909
diff changeset
242 ), b'config files must be opened in binary mode, got fp=%r mode=%r' % (
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 45909
diff changeset
243 fp,
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 45909
diff changeset
244 fp.mode,
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 41342
diff changeset
245 )
45244
f7f142d74df3 config: pass both relative and absolute paths to `include` callback
Martin von Zweigbergk <martinvonz@google.com>
parents: 43554
diff changeset
246
45280
83ca8d6f3206 config: re-calculate absolute %include path in `include` callback
Martin von Zweigbergk <martinvonz@google.com>
parents: 45278
diff changeset
247 dir = os.path.dirname(path)
83ca8d6f3206 config: re-calculate absolute %include path in `include` callback
Martin von Zweigbergk <martinvonz@google.com>
parents: 45278
diff changeset
248
45281
668af67bfd18 config: remove now-unused `abs` argument from `include` callback
Martin von Zweigbergk <martinvonz@google.com>
parents: 45280
diff changeset
249 def include(rel, remap, sections):
45280
83ca8d6f3206 config: re-calculate absolute %include path in `include` callback
Martin von Zweigbergk <martinvonz@google.com>
parents: 45278
diff changeset
250 abs = os.path.normpath(os.path.join(dir, rel))
45244
f7f142d74df3 config: pass both relative and absolute paths to `include` callback
Martin von Zweigbergk <martinvonz@google.com>
parents: 43554
diff changeset
251 self.read(abs, remap=remap, sections=sections)
46661
a3dced4b7b04 config: track the "level" of a value
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 46660
diff changeset
252 # anything after the include has a higher level
a3dced4b7b04 config: track the "level" of a value
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 46660
diff changeset
253 self.new_source()
45244
f7f142d74df3 config: pass both relative and absolute paths to `include` callback
Martin von Zweigbergk <martinvonz@google.com>
parents: 43554
diff changeset
254
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 41342
diff changeset
255 self.parse(
45244
f7f142d74df3 config: pass both relative and absolute paths to `include` callback
Martin von Zweigbergk <martinvonz@google.com>
parents: 43554
diff changeset
256 path, fp.read(), sections=sections, remap=remap, include=include
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 41342
diff changeset
257 )