Mercurial > hg
annotate mercurial/config.py @ 17817:b17be267b59c
scmutil: add function to validate new branch, tag, and bookmark names
For now the new function only checks to make sure the new label name
isn't a reserved name ('tip', '.', or 'null'). Eventually more of the
checks will be unified between the different types of labels.
The `tag` command is trivially updated to use it. Updating branches and
bookmarks to use it is slightly more invasive and thus reserved for
later patches.
author | Kevin Bullock <kbullock@ringworld.org> |
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date | Wed, 17 Oct 2012 16:34:46 -0500 |
parents | 31f32a96e1e3 |
children | 7d82ad4b3727 |
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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 = {} |
8144 | 47 if data: |
48 for k in data._data: | |
49 self._data[k] = data[k].copy() | |
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50 self._source = data._source.copy() |
8144 | 51 def copy(self): |
52 return config(self) | |
53 def __contains__(self, section): | |
54 return section in self._data | |
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55 def __getitem__(self, section): |
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56 return self._data.get(section, {}) |
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57 def __iter__(self): |
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58 for d in self.sections(): |
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59 yield d |
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60 def update(self, src): |
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61 for s in src: |
8144 | 62 if s not in self: |
63 self._data[s] = sortdict() | |
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64 self._data[s].update(src._data[s]) |
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65 self._source.update(src._source) |
8144 | 66 def get(self, section, item, default=None): |
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67 return self._data.get(section, {}).get(item, default) |
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68 |
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69 def backup(self, section, item): |
17527 | 70 """return a tuple allowing restore to reinstall a previous value |
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71 |
17530 | 72 The main reason we need it is because it handles the "no data" case. |
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73 """ |
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74 try: |
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75 value = self._data[section][item] |
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76 source = self.source(section, item) |
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77 return (section, item, value, source) |
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78 except KeyError: |
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79 return (section, item) |
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80 |
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81 def source(self, section, item): |
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82 return self._source.get((section, item), "") |
8144 | 83 def sections(self): |
84 return sorted(self._data.keys()) | |
85 def items(self, section): | |
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86 return self._data.get(section, {}).items() |
8144 | 87 def set(self, section, item, value, source=""): |
88 if section not in self: | |
89 self._data[section] = sortdict() | |
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90 self._data[section][item] = value |
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91 self._source[(section, item)] = source |
8144 | 92 |
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93 def restore(self, data): |
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94 """restore data returned by self.backup""" |
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95 if len(data) == 4: |
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96 # restore old data |
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97 section, item, value, source = data |
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98 self._data[section][item] = value |
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99 self._source[(section, item)] = source |
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100 else: |
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101 # no data before, remove everything |
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102 section, item = data |
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103 if section in self._data: |
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104 del self._data[section][item] |
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105 self._source.pop((section, item), None) |
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106 |
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107 def parse(self, src, data, sections=None, remap=None, include=None): |
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108 sectionre = util.compilere(r'\[([^\[]+)\]') |
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109 itemre = util.compilere(r'([^=\s][^=]*?)\s*=\s*(.*\S|)') |
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110 contre = util.compilere(r'\s+(\S|\S.*\S)\s*$') |
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111 emptyre = util.compilere(r'(;|#|\s*$)') |
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112 commentre = util.compilere(r'(;|#)') |
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113 unsetre = util.compilere(r'%unset\s+(\S+)') |
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114 includere = util.compilere(r'%include\s+(\S|\S.*\S)\s*$') |
8144 | 115 section = "" |
116 item = None | |
117 line = 0 | |
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118 cont = False |
8180 | 119 |
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120 for l in data.splitlines(True): |
8144 | 121 line += 1 |
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122 if line == 1 and l.startswith('\xef\xbb\xbf'): |
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123 # Someone set us up the BOM |
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124 l = l[3:] |
8144 | 125 if cont: |
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126 if commentre.match(l): |
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127 continue |
8144 | 128 m = contre.match(l) |
129 if m: | |
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130 if sections and section not in sections: |
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131 continue |
8144 | 132 v = self.get(section, item) + "\n" + m.group(1) |
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133 self.set(section, item, v, "%s:%d" % (src, line)) |
8144 | 134 continue |
135 item = None | |
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136 cont = False |
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137 m = includere.match(l) |
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138 if m: |
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139 inc = util.expandpath(m.group(1)) |
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140 base = os.path.dirname(src) |
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141 inc = os.path.normpath(os.path.join(base, inc)) |
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142 if include: |
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143 try: |
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144 include(inc, remap=remap, sections=sections) |
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145 except IOError, inst: |
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146 if inst.errno != errno.ENOENT: |
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147 raise error.ParseError(_("cannot include %s (%s)") |
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148 % (inc, inst.strerror), |
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149 "%s:%s" % (src, line)) |
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150 continue |
8144 | 151 if emptyre.match(l): |
152 continue | |
153 m = sectionre.match(l) | |
154 if m: | |
155 section = m.group(1) | |
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156 if remap: |
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157 section = remap.get(section, section) |
8144 | 158 if section not in self: |
159 self._data[section] = sortdict() | |
160 continue | |
161 m = itemre.match(l) | |
162 if m: | |
163 item = m.group(1) | |
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164 cont = True |
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165 if sections and section not in sections: |
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166 continue |
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167 self.set(section, item, m.group(2), "%s:%d" % (src, line)) |
8144 | 168 continue |
8184
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169 m = unsetre.match(l) |
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170 if m: |
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171 name = m.group(1) |
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172 if sections and section not in sections: |
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173 continue |
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174 if self.get(section, name) is not None: |
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175 del self._data[section][name] |
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176 continue |
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177 |
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error: add new ParseError for various parsing errors
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178 raise error.ParseError(l.rstrip(), ("%s:%s" % (src, line))) |
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179 |
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180 def read(self, path, fp=None, sections=None, remap=None): |
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181 if not fp: |
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182 fp = util.posixfile(path) |
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183 self.parse(path, fp.read(), sections, remap, self.read) |