Mercurial > hg
annotate mercurial/config.py @ 15908:60cb4f381a78
bookmarks: backout locking change in 12dea4d998ec
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author | Matt Mackall <mpm@selenic.com> |
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date | Wed, 18 Jan 2012 14:56:52 -0600 |
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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 |
8144 | 8 from i18n import _ |
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9 import error, util |
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10 import re, os, errno |
8144 | 11 |
12 class sortdict(dict): | |
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13 'a simple sorted dictionary' |
8144 | 14 def __init__(self, data=None): |
15 self._list = [] | |
16 if data: | |
17 self.update(data) | |
18 def copy(self): | |
19 return sortdict(self) | |
20 def __setitem__(self, key, val): | |
21 if key in self: | |
22 self._list.remove(key) | |
23 self._list.append(key) | |
24 dict.__setitem__(self, key, val) | |
25 def __iter__(self): | |
26 return self._list.__iter__() | |
27 def update(self, src): | |
28 for k in src: | |
29 self[k] = src[k] | |
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30 def clear(self): |
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31 dict.clear(self) |
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32 self._list = [] |
8144 | 33 def items(self): |
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34 return [(k, self[k]) for k in self._list] |
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35 def __delitem__(self, key): |
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36 dict.__delitem__(self, key) |
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37 self._list.remove(key) |
8144 | 38 |
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39 class config(object): |
8144 | 40 def __init__(self, data=None): |
41 self._data = {} | |
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42 self._source = {} |
8144 | 43 if data: |
44 for k in data._data: | |
45 self._data[k] = data[k].copy() | |
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46 self._source = data._source.copy() |
8144 | 47 def copy(self): |
48 return config(self) | |
49 def __contains__(self, section): | |
50 return section in self._data | |
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51 def __getitem__(self, section): |
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52 return self._data.get(section, {}) |
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53 def __iter__(self): |
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54 for d in self.sections(): |
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55 yield d |
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56 def update(self, src): |
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57 for s in src: |
8144 | 58 if s not in self: |
59 self._data[s] = sortdict() | |
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60 self._data[s].update(src._data[s]) |
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61 self._source.update(src._source) |
8144 | 62 def get(self, section, item, default=None): |
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63 return self._data.get(section, {}).get(item, default) |
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64 def source(self, section, item): |
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65 return self._source.get((section, item), "") |
8144 | 66 def sections(self): |
67 return sorted(self._data.keys()) | |
68 def items(self, section): | |
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69 return self._data.get(section, {}).items() |
8144 | 70 def set(self, section, item, value, source=""): |
71 if section not in self: | |
72 self._data[section] = sortdict() | |
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73 self._data[section][item] = value |
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74 self._source[(section, item)] = source |
8144 | 75 |
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76 def parse(self, src, data, sections=None, remap=None, include=None): |
8144 | 77 sectionre = re.compile(r'\[([^\[]+)\]') |
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78 itemre = re.compile(r'([^=\s][^=]*?)\s*=\s*(.*\S|)') |
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79 contre = re.compile(r'\s+(\S|\S.*\S)\s*$') |
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80 emptyre = re.compile(r'(;|#|\s*$)') |
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81 commentre = re.compile(r'(;|#)') |
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82 unsetre = re.compile(r'%unset\s+(\S+)') |
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83 includere = re.compile(r'%include\s+(\S|\S.*\S)\s*$') |
8144 | 84 section = "" |
85 item = None | |
86 line = 0 | |
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87 cont = False |
8180 | 88 |
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89 for l in data.splitlines(True): |
8144 | 90 line += 1 |
91 if cont: | |
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92 if commentre.match(l): |
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93 continue |
8144 | 94 m = contre.match(l) |
95 if m: | |
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96 if sections and section not in sections: |
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97 continue |
8144 | 98 v = self.get(section, item) + "\n" + m.group(1) |
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99 self.set(section, item, v, "%s:%d" % (src, line)) |
8144 | 100 continue |
101 item = None | |
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102 cont = False |
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103 m = includere.match(l) |
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104 if m: |
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105 inc = util.expandpath(m.group(1)) |
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106 base = os.path.dirname(src) |
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107 inc = os.path.normpath(os.path.join(base, inc)) |
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108 if include: |
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109 try: |
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110 include(inc, remap=remap, sections=sections) |
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111 except IOError, inst: |
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112 if inst.errno != errno.ENOENT: |
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113 raise error.ParseError(_("cannot include %s (%s)") |
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114 % (inc, inst.strerror), |
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115 "%s:%s" % (src, line)) |
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116 continue |
8144 | 117 if emptyre.match(l): |
118 continue | |
119 m = sectionre.match(l) | |
120 if m: | |
121 section = m.group(1) | |
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122 if remap: |
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123 section = remap.get(section, section) |
8144 | 124 if section not in self: |
125 self._data[section] = sortdict() | |
126 continue | |
127 m = itemre.match(l) | |
128 if m: | |
129 item = m.group(1) | |
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130 cont = True |
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131 if sections and section not in sections: |
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132 continue |
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133 self.set(section, item, m.group(2), "%s:%d" % (src, line)) |
8144 | 134 continue |
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135 m = unsetre.match(l) |
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136 if m: |
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137 name = m.group(1) |
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138 if sections and section not in sections: |
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139 continue |
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140 if self.get(section, name) is not None: |
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141 del self._data[section][name] |
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142 continue |
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143 |
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144 raise error.ParseError(l.rstrip(), ("%s:%s" % (src, line))) |
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145 |
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146 def read(self, path, fp=None, sections=None, remap=None): |
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147 if not fp: |
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148 fp = util.posixfile(path) |
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149 self.parse(path, fp.read(), sections, remap, self.read) |