Mercurial > hg
annotate mercurial/config.py @ 8716:f3322bb29a0e
dirstate: don't complain about 0-length files
author | Matt Mackall <mpm@selenic.com> |
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date | Thu, 04 Jun 2009 16:21:09 -0500 |
parents | b87a50b7125c |
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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 |
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6 # GNU General Public License version 2, incorporated herein by reference. |
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7 |
8144 | 8 from i18n import _ |
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9 import error |
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10 import re, os |
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] | |
30 def items(self): | |
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31 return [(k, self[k]) for k in self._list] |
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32 def __delitem__(self, key): |
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33 dict.__delitem__(self, key) |
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34 self._list.remove(key) |
8144 | 35 |
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36 class config(object): |
8144 | 37 def __init__(self, data=None): |
38 self._data = {} | |
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39 self._source = {} |
8144 | 40 if data: |
41 for k in data._data: | |
42 self._data[k] = data[k].copy() | |
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43 self._source = data._source.copy() |
8144 | 44 def copy(self): |
45 return config(self) | |
46 def __contains__(self, section): | |
47 return section in self._data | |
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48 def __getitem__(self, section): |
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49 return self._data.get(section, {}) |
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50 def __iter__(self): |
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51 for d in self.sections(): |
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52 yield d |
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53 def update(self, src): |
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54 for s in src: |
8144 | 55 if s not in self: |
56 self._data[s] = sortdict() | |
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57 self._data[s].update(src._data[s]) |
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58 self._source.update(src._source) |
8144 | 59 def get(self, section, item, default=None): |
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60 return self._data.get(section, {}).get(item, default) |
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61 def source(self, section, item): |
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62 return self._source.get((section, item), "") |
8144 | 63 def sections(self): |
64 return sorted(self._data.keys()) | |
65 def items(self, section): | |
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66 return self._data.get(section, {}).items() |
8144 | 67 def set(self, section, item, value, source=""): |
68 if section not in self: | |
69 self._data[section] = sortdict() | |
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70 self._data[section][item] = value |
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71 self._source[(section, item)] = source |
8144 | 72 |
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73 def parse(self, src, data, sections=None, remap=None, include=None): |
8144 | 74 sectionre = re.compile(r'\[([^\[]+)\]') |
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75 itemre = re.compile(r'([^=\s][^=]*?)\s*=\s*(.*\S|)') |
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76 contre = re.compile(r'\s+(\S.*\S)') |
8144 | 77 emptyre = re.compile(r'(;|#|\s*$)') |
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78 unsetre = re.compile(r'%unset\s+(\S+)') |
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79 includere = re.compile(r'%include\s+(\S.*\S)') |
8144 | 80 section = "" |
81 item = None | |
82 line = 0 | |
83 cont = 0 | |
8180 | 84 |
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85 for l in data.splitlines(1): |
8144 | 86 line += 1 |
87 if cont: | |
88 m = contre.match(l) | |
89 if m: | |
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90 if sections and section not in sections: |
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91 continue |
8144 | 92 v = self.get(section, item) + "\n" + m.group(1) |
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93 self.set(section, item, v, "%s:%d" % (src, line)) |
8144 | 94 continue |
95 item = None | |
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96 m = includere.match(l) |
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97 if m: |
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98 inc = m.group(1) |
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99 base = os.path.dirname(src) |
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100 inc = os.path.normpath(os.path.join(base, inc)) |
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101 if include: |
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102 include(inc, remap=remap, sections=sections) |
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103 continue |
8144 | 104 if emptyre.match(l): |
105 continue | |
106 m = sectionre.match(l) | |
107 if m: | |
108 section = m.group(1) | |
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109 if remap: |
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110 section = remap.get(section, section) |
8144 | 111 if section not in self: |
112 self._data[section] = sortdict() | |
113 continue | |
114 m = itemre.match(l) | |
115 if m: | |
116 item = m.group(1) | |
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117 cont = 1 |
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118 if sections and section not in sections: |
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119 continue |
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120 self.set(section, item, m.group(2), "%s:%d" % (src, line)) |
8144 | 121 continue |
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122 m = unsetre.match(l) |
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123 if m: |
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124 name = m.group(1) |
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125 if sections and section not in sections: |
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126 continue |
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127 if self.get(section, name) != None: |
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128 del self._data[section][name] |
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129 continue |
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130 |
8144 | 131 raise error.ConfigError(_('config error at %s:%d: \'%s\'') |
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132 % (src, line, l.rstrip())) |
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133 |
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134 def read(self, path, fp=None, sections=None, remap=None): |
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135 if not fp: |
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136 fp = open(path) |
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137 self.parse(path, fp.read(), sections, remap, self.read) |