Mercurial > hg
annotate mercurial/config.py @ 19093:6f27efc7db23 stable
hgweb: fix empty navigation detection
For some obscure reason, changelog.node(0) returns nullid if changelog is empty.
this break empty navigation detection. We fix this code by using the length of
the changelog.
Using the length have some issue with revision filtering but this is a small
step in the right direction. Proper fix comes in later changeset.
author | Pierre-Yves David <pierre-yves.david@logilab.fr> |
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date | Tue, 30 Apr 2013 15:11:12 +0200 |
parents | 7d82ad4b3727 |
children | d19c9bdbbf35 |
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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 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) |
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38 def keys(self): |
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39 return self._list |
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40 def iterkeys(self): |
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41 return self._list.__iter__() |
8144 | 42 |
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43 class config(object): |
8144 | 44 def __init__(self, data=None): |
45 self._data = {} | |
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46 self._source = {} |
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47 self._unset = [] |
8144 | 48 if data: |
49 for k in data._data: | |
50 self._data[k] = data[k].copy() | |
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51 self._source = data._source.copy() |
8144 | 52 def copy(self): |
53 return config(self) | |
54 def __contains__(self, section): | |
55 return section in self._data | |
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56 def __getitem__(self, section): |
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57 return self._data.get(section, {}) |
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58 def __iter__(self): |
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59 for d in self.sections(): |
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60 yield d |
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61 def update(self, src): |
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62 for s, n in src._unset: |
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63 if s in self and n in self._data[s]: |
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64 del self._data[s][n] |
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65 del self._source[(s, n)] |
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66 for s in src: |
8144 | 67 if s not in self: |
68 self._data[s] = sortdict() | |
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69 self._data[s].update(src._data[s]) |
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70 self._source.update(src._source) |
8144 | 71 def get(self, section, item, default=None): |
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72 return self._data.get(section, {}).get(item, default) |
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73 |
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74 def backup(self, section, item): |
17527 | 75 """return a tuple allowing restore to reinstall a previous value |
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76 |
17530 | 77 The main reason we need it is because it handles the "no data" case. |
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78 """ |
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79 try: |
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80 value = self._data[section][item] |
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81 source = self.source(section, item) |
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82 return (section, item, value, source) |
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83 except KeyError: |
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84 return (section, item) |
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85 |
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86 def source(self, section, item): |
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87 return self._source.get((section, item), "") |
8144 | 88 def sections(self): |
89 return sorted(self._data.keys()) | |
90 def items(self, section): | |
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91 return self._data.get(section, {}).items() |
8144 | 92 def set(self, section, item, value, source=""): |
93 if section not in self: | |
94 self._data[section] = sortdict() | |
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95 self._data[section][item] = value |
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96 self._source[(section, item)] = source |
8144 | 97 |
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98 def restore(self, data): |
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99 """restore data returned by self.backup""" |
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100 if len(data) == 4: |
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101 # restore old data |
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102 section, item, value, source = data |
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103 self._data[section][item] = value |
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104 self._source[(section, item)] = source |
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105 else: |
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106 # no data before, remove everything |
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107 section, item = data |
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108 if section in self._data: |
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109 del self._data[section][item] |
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110 self._source.pop((section, item), None) |
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111 |
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112 def parse(self, src, data, sections=None, remap=None, include=None): |
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113 sectionre = util.compilere(r'\[([^\[]+)\]') |
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114 itemre = util.compilere(r'([^=\s][^=]*?)\s*=\s*(.*\S|)') |
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115 contre = util.compilere(r'\s+(\S|\S.*\S)\s*$') |
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116 emptyre = util.compilere(r'(;|#|\s*$)') |
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117 commentre = util.compilere(r'(;|#)') |
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118 unsetre = util.compilere(r'%unset\s+(\S+)') |
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119 includere = util.compilere(r'%include\s+(\S|\S.*\S)\s*$') |
8144 | 120 section = "" |
121 item = None | |
122 line = 0 | |
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123 cont = False |
8180 | 124 |
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125 for l in data.splitlines(True): |
8144 | 126 line += 1 |
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127 if line == 1 and l.startswith('\xef\xbb\xbf'): |
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128 # Someone set us up the BOM |
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129 l = l[3:] |
8144 | 130 if cont: |
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131 if commentre.match(l): |
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132 continue |
8144 | 133 m = contre.match(l) |
134 if m: | |
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135 if sections and section not in sections: |
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136 continue |
8144 | 137 v = self.get(section, item) + "\n" + m.group(1) |
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138 self.set(section, item, v, "%s:%d" % (src, line)) |
8144 | 139 continue |
140 item = None | |
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141 cont = False |
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142 m = includere.match(l) |
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143 if m: |
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144 inc = util.expandpath(m.group(1)) |
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145 base = os.path.dirname(src) |
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146 inc = os.path.normpath(os.path.join(base, inc)) |
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147 if include: |
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148 try: |
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149 include(inc, remap=remap, sections=sections) |
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150 except IOError, inst: |
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151 if inst.errno != errno.ENOENT: |
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152 raise error.ParseError(_("cannot include %s (%s)") |
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153 % (inc, inst.strerror), |
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154 "%s:%s" % (src, line)) |
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155 continue |
8144 | 156 if emptyre.match(l): |
157 continue | |
158 m = sectionre.match(l) | |
159 if m: | |
160 section = m.group(1) | |
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161 if remap: |
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162 section = remap.get(section, section) |
8144 | 163 if section not in self: |
164 self._data[section] = sortdict() | |
165 continue | |
166 m = itemre.match(l) | |
167 if m: | |
168 item = m.group(1) | |
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169 cont = True |
8193
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170 if sections and section not in sections: |
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171 continue |
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172 self.set(section, item, m.group(2), "%s:%d" % (src, line)) |
8144 | 173 continue |
8184
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174 m = unsetre.match(l) |
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175 if m: |
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176 name = m.group(1) |
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177 if sections and section not in sections: |
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178 continue |
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179 if self.get(section, name) is not None: |
8184
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180 del self._data[section][name] |
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181 self._unset.append((section, name)) |
8184
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182 continue |
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183 |
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11224
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184 raise error.ParseError(l.rstrip(), ("%s:%s" % (src, line))) |
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185 |
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186 def read(self, path, fp=None, sections=None, remap=None): |
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187 if not fp: |
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188 fp = util.posixfile(path) |
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189 self.parse(path, fp.read(), sections, remap, self.read) |