config.py
142 lines
| 4.9 KiB
| text/x-python
|
PythonLexer
/ mercurial / config.py
|
r8229 | # config.py - configuration parsing for Mercurial | ||
# | ||||
# Copyright 2009 Matt Mackall <mpm@selenic.com> and others | ||||
# | ||||
# This software may be used and distributed according to the terms of the | ||||
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r10263 | # GNU General Public License version 2 or any later version. | ||
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r8229 | |||
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r8144 | from i18n import _ | ||
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r11224 | import error, util | ||
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r8312 | import re, os | ||
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r8144 | |||
class sortdict(dict): | ||||
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r8184 | 'a simple sorted dictionary' | ||
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r8144 | def __init__(self, data=None): | ||
self._list = [] | ||||
if data: | ||||
self.update(data) | ||||
def copy(self): | ||||
return sortdict(self) | ||||
def __setitem__(self, key, val): | ||||
if key in self: | ||||
self._list.remove(key) | ||||
self._list.append(key) | ||||
dict.__setitem__(self, key, val) | ||||
def __iter__(self): | ||||
return self._list.__iter__() | ||||
def update(self, src): | ||||
for k in src: | ||||
self[k] = src[k] | ||||
def items(self): | ||||
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r8222 | return [(k, self[k]) for k in self._list] | ||
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r8184 | def __delitem__(self, key): | ||
dict.__delitem__(self, key) | ||||
self._list.remove(key) | ||||
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r8144 | |||
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r8186 | class config(object): | ||
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r8144 | def __init__(self, data=None): | ||
self._data = {} | ||||
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r8185 | self._source = {} | ||
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r8144 | if data: | ||
for k in data._data: | ||||
self._data[k] = data[k].copy() | ||||
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r8185 | self._source = data._source.copy() | ||
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r8144 | def copy(self): | ||
return config(self) | ||||
def __contains__(self, section): | ||||
return section in self._data | ||||
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r8186 | def __getitem__(self, section): | ||
return self._data.get(section, {}) | ||||
def __iter__(self): | ||||
for d in self.sections(): | ||||
yield d | ||||
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r8193 | def update(self, src): | ||
for s in src: | ||||
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r8144 | if s not in self: | ||
self._data[s] = sortdict() | ||||
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r8193 | self._data[s].update(src._data[s]) | ||
self._source.update(src._source) | ||||
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r8144 | def get(self, section, item, default=None): | ||
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r8185 | return self._data.get(section, {}).get(item, default) | ||
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r8198 | def source(self, section, item): | ||
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r8185 | return self._source.get((section, item), "") | ||
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r8144 | def sections(self): | ||
return sorted(self._data.keys()) | ||||
def items(self, section): | ||||
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r8185 | return self._data.get(section, {}).items() | ||
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r8144 | def set(self, section, item, value, source=""): | ||
if section not in self: | ||||
self._data[section] = sortdict() | ||||
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r8185 | self._data[section][item] = value | ||
self._source[(section, item)] = source | ||||
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r8144 | |||
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r8265 | def parse(self, src, data, sections=None, remap=None, include=None): | ||
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r8144 | sectionre = re.compile(r'\[([^\[]+)\]') | ||
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r8263 | itemre = re.compile(r'([^=\s][^=]*?)\s*=\s*(.*\S|)') | ||
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r10295 | contre = re.compile(r'\s+(\S|\S.*\S)\s*$') | ||
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r8144 | emptyre = re.compile(r'(;|#|\s*$)') | ||
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r8192 | unsetre = re.compile(r'%unset\s+(\S+)') | ||
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r10295 | includere = re.compile(r'%include\s+(\S|\S.*\S)\s*$') | ||
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r8144 | section = "" | ||
item = None | ||||
line = 0 | ||||
r9339 | cont = False | |||
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r8180 | |||
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r9136 | for l in data.splitlines(True): | ||
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r8144 | line += 1 | ||
if cont: | ||||
m = contre.match(l) | ||||
if m: | ||||
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r8193 | if sections and section not in sections: | ||
continue | ||||
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r8144 | v = self.get(section, item) + "\n" + m.group(1) | ||
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r8265 | self.set(section, item, v, "%s:%d" % (src, line)) | ||
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r8144 | continue | ||
item = None | ||||
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r9469 | cont = False | ||
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r8183 | m = includere.match(l) | ||
if m: | ||||
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r11224 | inc = util.expandpath(m.group(1)) | ||
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r8265 | base = os.path.dirname(src) | ||
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r8183 | inc = os.path.normpath(os.path.join(base, inc)) | ||
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r8265 | if include: | ||
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r10042 | try: | ||
include(inc, remap=remap, sections=sections) | ||||
except IOError, inst: | ||||
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r11292 | raise error.ParseError(_("cannot include %s (%s)") | ||
% (inc, inst.strerror), | ||||
"%s:%s" % (src, line)) | ||||
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r8183 | continue | ||
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r8144 | if emptyre.match(l): | ||
continue | ||||
m = sectionre.match(l) | ||||
if m: | ||||
section = m.group(1) | ||||
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r8298 | if remap: | ||
section = remap.get(section, section) | ||||
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r8144 | if section not in self: | ||
self._data[section] = sortdict() | ||||
continue | ||||
m = itemre.match(l) | ||||
if m: | ||||
item = m.group(1) | ||||
r9339 | cont = True | |||
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r8193 | if sections and section not in sections: | ||
continue | ||||
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r8265 | self.set(section, item, m.group(2), "%s:%d" % (src, line)) | ||
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r8144 | continue | ||
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r8184 | m = unsetre.match(l) | ||
if m: | ||||
name = m.group(1) | ||||
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r8193 | if sections and section not in sections: | ||
continue | ||||
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r13031 | if self.get(section, name) is not None: | ||
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r8184 | del self._data[section][name] | ||
continue | ||||
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r11288 | raise error.ParseError(l.rstrip(), ("%s:%s" % (src, line))) | ||
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r8265 | |||
def read(self, path, fp=None, sections=None, remap=None): | ||||
if not fp: | ||||
fp = open(path) | ||||
self.parse(path, fp.read(), sections, remap, self.read) | ||||