annotate mercurial/config.py @ 33405:6aa643762641

match: inverse _anypats(), making it _prefix()
author Martin von Zweigbergk <martinvonz@google.com>
date Tue, 11 Jul 2017 09:42:32 -0700
parents 6a773d3050c9
children 0fa781320203
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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 or any later version.
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7
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8 from __future__ import absolute_import
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9
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10 import errno
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11 import os
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12
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13 from .i18n import _
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14 from . import (
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15 error,
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16 pycompat,
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17 util,
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18 )
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19
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20 class config(object):
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21 def __init__(self, data=None, includepaths=None):
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22 self._data = {}
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23 self._source = {}
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24 self._unset = []
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25 self._includepaths = includepaths or []
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26 if data:
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27 for k in data._data:
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28 self._data[k] = data[k].copy()
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29 self._source = data._source.copy()
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30 def copy(self):
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31 return config(self)
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32 def __contains__(self, section):
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33 return section in self._data
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34 def hasitem(self, section, item):
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35 return item in self._data.get(section, {})
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36 def __getitem__(self, section):
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37 return self._data.get(section, {})
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38 def __iter__(self):
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39 for d in self.sections():
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40 yield d
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41 def update(self, src):
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42 for s, n in src._unset:
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43 if s in self and n in self._data[s]:
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44 del self._data[s][n]
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45 del self._source[(s, n)]
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46 for s in src:
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47 if s not in self:
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48 self._data[s] = util.sortdict()
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49 self._data[s].update(src._data[s])
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50 self._source.update(src._source)
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51 def get(self, section, item, default=None):
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52 return self._data.get(section, {}).get(item, default)
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53
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54 def backup(self, section, item):
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55 """return a tuple allowing restore to reinstall a previous value
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56
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57 The main reason we need it is because it handles the "no data" case.
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58 """
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59 try:
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60 value = self._data[section][item]
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61 source = self.source(section, item)
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62 return (section, item, value, source)
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63 except KeyError:
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64 return (section, item)
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65
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66 def source(self, section, item):
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67 return self._source.get((section, item), "")
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68 def sections(self):
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69 return sorted(self._data.keys())
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70 def items(self, section):
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71 return list(self._data.get(section, {}).iteritems())
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72 def set(self, section, item, value, source=""):
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73 if pycompat.ispy3:
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74 assert not isinstance(value, str), (
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75 'config values may not be unicode strings on Python 3')
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76 if section not in self:
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77 self._data[section] = util.sortdict()
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78 self._data[section][item] = value
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79 if source:
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80 self._source[(section, item)] = source
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81
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82 def restore(self, data):
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83 """restore data returned by self.backup"""
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84 if len(data) == 4:
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85 # restore old data
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86 section, item, value, source = data
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87 self._data[section][item] = value
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88 self._source[(section, item)] = source
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89 else:
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90 # no data before, remove everything
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91 section, item = data
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92 if section in self._data:
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93 self._data[section].pop(item, None)
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94 self._source.pop((section, item), None)
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95
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96 def parse(self, src, data, sections=None, remap=None, include=None):
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97 sectionre = util.re.compile(br'\[([^\[]+)\]')
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98 itemre = util.re.compile(br'([^=\s][^=]*?)\s*=\s*(.*\S|)')
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99 contre = util.re.compile(br'\s+(\S|\S.*\S)\s*$')
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100 emptyre = util.re.compile(br'(;|#|\s*$)')
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101 commentre = util.re.compile(br'(;|#)')
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102 unsetre = util.re.compile(br'%unset\s+(\S+)')
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103 includere = util.re.compile(br'%include\s+(\S|\S.*\S)\s*$')
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104 section = ""
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105 item = None
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106 line = 0
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107 cont = False
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108
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109 for l in data.splitlines(True):
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110 line += 1
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111 if line == 1 and l.startswith('\xef\xbb\xbf'):
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112 # Someone set us up the BOM
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113 l = l[3:]
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114 if cont:
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115 if commentre.match(l):
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116 continue
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117 m = contre.match(l)
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118 if m:
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119 if sections and section not in sections:
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120 continue
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121 v = self.get(section, item) + "\n" + m.group(1)
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122 self.set(section, item, v, "%s:%d" % (src, line))
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123 continue
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124 item = None
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125 cont = False
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126 m = includere.match(l)
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127
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128 if m and include:
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129 expanded = util.expandpath(m.group(1))
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130 includepaths = [os.path.dirname(src)] + self._includepaths
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131
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132 for base in includepaths:
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133 inc = os.path.normpath(os.path.join(base, expanded))
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134
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135 try:
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136 include(inc, remap=remap, sections=sections)
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137 break
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328739ea70c3 global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25095
diff changeset
138 except IOError as inst:
14486
4e3eda05189b config: ignore include errors for nonexistent files
Matt Mackall <mpm@selenic.com>
parents: 13664
diff changeset
139 if inst.errno != errno.ENOENT:
4e3eda05189b config: ignore include errors for nonexistent files
Matt Mackall <mpm@selenic.com>
parents: 13664
diff changeset
140 raise error.ParseError(_("cannot include %s (%s)")
4e3eda05189b config: ignore include errors for nonexistent files
Matt Mackall <mpm@selenic.com>
parents: 13664
diff changeset
141 % (inc, inst.strerror),
4e3eda05189b config: ignore include errors for nonexistent files
Matt Mackall <mpm@selenic.com>
parents: 13664
diff changeset
142 "%s:%s" % (src, line))
8183
2858ab754995 config: allow including other config files
Matt Mackall <mpm@selenic.com>
parents: 8180
diff changeset
143 continue
8144
fca54469480e ui: introduce new config parser
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
144 if emptyre.match(l):
fca54469480e ui: introduce new config parser
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
145 continue
fca54469480e ui: introduce new config parser
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
146 m = sectionre.match(l)
fca54469480e ui: introduce new config parser
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
147 if m:
fca54469480e ui: introduce new config parser
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
148 section = m.group(1)
8298
9542f4c3fa1b config: make remap actually work
Matt Mackall <mpm@selenic.com>
parents: 8265
diff changeset
149 if remap:
9542f4c3fa1b config: make remap actually work
Matt Mackall <mpm@selenic.com>
parents: 8265
diff changeset
150 section = remap.get(section, section)
8144
fca54469480e ui: introduce new config parser
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
151 if section not in self:
21813
c2262004c2e2 config: move config.sortdict class into util
Angel Ezquerra <angel.ezquerra@gmail.com>
parents: 20789
diff changeset
152 self._data[section] = util.sortdict()
8144
fca54469480e ui: introduce new config parser
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
153 continue
fca54469480e ui: introduce new config parser
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
154 m = itemre.match(l)
fca54469480e ui: introduce new config parser
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
155 if m:
fca54469480e ui: introduce new config parser
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
156 item = m.group(1)
9339
9be91129c96e config: improve code readability
Andrey <py4fun@gmail.com>
parents: 9136
diff changeset
157 cont = True
8193
94246e90081e config: add section filter to read
Matt Mackall <mpm@selenic.com>
parents: 8192
diff changeset
158 if sections and section not in sections:
94246e90081e config: add section filter to read
Matt Mackall <mpm@selenic.com>
parents: 8192
diff changeset
159 continue
8265
52c5be55af82 config: add parse interface
Matt Mackall <mpm@selenic.com>
parents: 8263
diff changeset
160 self.set(section, item, m.group(2), "%s:%d" % (src, line))
8144
fca54469480e ui: introduce new config parser
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
161 continue
8184
9189afe1eba3 config: add %unset name support
Matt Mackall <mpm@selenic.com>
parents: 8183
diff changeset
162 m = unsetre.match(l)
9189afe1eba3 config: add %unset name support
Matt Mackall <mpm@selenic.com>
parents: 8183
diff changeset
163 if m:
9189afe1eba3 config: add %unset name support
Matt Mackall <mpm@selenic.com>
parents: 8183
diff changeset
164 name = m.group(1)
8193
94246e90081e config: add section filter to read
Matt Mackall <mpm@selenic.com>
parents: 8192
diff changeset
165 if sections and section not in sections:
94246e90081e config: add section filter to read
Matt Mackall <mpm@selenic.com>
parents: 8192
diff changeset
166 continue
13031
3da456d0c885 code style: prefer 'is' and 'is not' tests with singletons
Martin Geisler <mg@aragost.com>
parents: 11292
diff changeset
167 if self.get(section, name) is not None:
8184
9189afe1eba3 config: add %unset name support
Matt Mackall <mpm@selenic.com>
parents: 8183
diff changeset
168 del self._data[section][name]
19087
7d82ad4b3727 config: discard "%unset" values defined in the other files read in previously
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 17537
diff changeset
169 self._unset.append((section, name))
8184
9189afe1eba3 config: add %unset name support
Matt Mackall <mpm@selenic.com>
parents: 8183
diff changeset
170 continue
9189afe1eba3 config: add %unset name support
Matt Mackall <mpm@selenic.com>
parents: 8183
diff changeset
171
11288
2123aad24d56 error: add new ParseError for various parsing errors
Matt Mackall <mpm@selenic.com>
parents: 11224
diff changeset
172 raise error.ParseError(l.rstrip(), ("%s:%s" % (src, line)))
8265
52c5be55af82 config: add parse interface
Matt Mackall <mpm@selenic.com>
parents: 8263
diff changeset
173
52c5be55af82 config: add parse interface
Matt Mackall <mpm@selenic.com>
parents: 8263
diff changeset
174 def read(self, path, fp=None, sections=None, remap=None):
52c5be55af82 config: add parse interface
Matt Mackall <mpm@selenic.com>
parents: 8263
diff changeset
175 if not fp:
31154
fd3f4bf9325e config: load included config files in binary mode
Augie Fackler <raf@durin42.com>
parents: 30349
diff changeset
176 fp = util.posixfile(path, 'rb')
31176
99c5843b228d config: add sanity assert that files are opened as binary
Augie Fackler <raf@durin42.com>
parents: 31155
diff changeset
177 assert getattr(fp, 'mode', r'rb') == r'rb', (
99c5843b228d config: add sanity assert that files are opened as binary
Augie Fackler <raf@durin42.com>
parents: 31155
diff changeset
178 'config files must be opened in binary mode, got fp=%r mode=%r' % (
99c5843b228d config: add sanity assert that files are opened as binary
Augie Fackler <raf@durin42.com>
parents: 31155
diff changeset
179 fp, fp.mode))
31155
8266802f0fa4 config: pass some optional args as keywords
Augie Fackler <raf@durin42.com>
parents: 31154
diff changeset
180 self.parse(path, fp.read(),
8266802f0fa4 config: pass some optional args as keywords
Augie Fackler <raf@durin42.com>
parents: 31154
diff changeset
181 sections=sections, remap=remap, include=self.read)
31481
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
182
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
183 def parselist(value):
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
184 """parse a configuration value as a list of comma/space separated strings
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
185
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
186 >>> parselist('this,is "a small" ,test')
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
187 ['this', 'is', 'a small', 'test']
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
188 """
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
189
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
190 def _parse_plain(parts, s, offset):
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
191 whitespace = False
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
192 while offset < len(s) and (s[offset:offset + 1].isspace()
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
193 or s[offset:offset + 1] == ','):
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
194 whitespace = True
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
195 offset += 1
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
196 if offset >= len(s):
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
197 return None, parts, offset
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
198 if whitespace:
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
199 parts.append('')
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
200 if s[offset:offset + 1] == '"' and not parts[-1]:
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
201 return _parse_quote, parts, offset + 1
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
202 elif s[offset:offset + 1] == '"' and parts[-1][-1] == '\\':
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
203 parts[-1] = parts[-1][:-1] + s[offset:offset + 1]
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
204 return _parse_plain, parts, offset + 1
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
205 parts[-1] += s[offset:offset + 1]
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
206 return _parse_plain, parts, offset + 1
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
207
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
208 def _parse_quote(parts, s, offset):
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
209 if offset < len(s) and s[offset:offset + 1] == '"': # ""
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
210 parts.append('')
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
211 offset += 1
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
212 while offset < len(s) and (s[offset:offset + 1].isspace() or
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
213 s[offset:offset + 1] == ','):
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
214 offset += 1
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
215 return _parse_plain, parts, offset
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
216
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
217 while offset < len(s) and s[offset:offset + 1] != '"':
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
218 if (s[offset:offset + 1] == '\\' and offset + 1 < len(s)
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
219 and s[offset + 1:offset + 2] == '"'):
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
220 offset += 1
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
221 parts[-1] += '"'
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
222 else:
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
223 parts[-1] += s[offset:offset + 1]
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
224 offset += 1
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
225
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
226 if offset >= len(s):
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
227 real_parts = _configlist(parts[-1])
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
228 if not real_parts:
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
229 parts[-1] = '"'
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
230 else:
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
231 real_parts[0] = '"' + real_parts[0]
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
232 parts = parts[:-1]
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
233 parts.extend(real_parts)
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
234 return None, parts, offset
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
235
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
236 offset += 1
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
237 while offset < len(s) and s[offset:offset + 1] in [' ', ',']:
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
238 offset += 1
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
239
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
240 if offset < len(s):
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
241 if offset + 1 == len(s) and s[offset:offset + 1] == '"':
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
242 parts[-1] += '"'
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
243 offset += 1
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
244 else:
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
245 parts.append('')
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
246 else:
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
247 return None, parts, offset
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
248
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
249 return _parse_plain, parts, offset
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
250
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
251 def _configlist(s):
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
252 s = s.rstrip(' ,')
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
253 if not s:
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
254 return []
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
255 parser, parts, offset = _parse_plain, [''], 0
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
256 while parser:
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
257 parser, parts, offset = parser(parts, s, offset)
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
258 return parts
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
259
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
260 if value is not None and isinstance(value, bytes):
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
261 result = _configlist(value.lstrip(' ,\n'))
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
262 else:
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
263 result = value
a7c687c35119 ui: move configlist parser to config.py
Jun Wu <quark@fb.com>
parents: 31374
diff changeset
264 return result or []