Mercurial > hgrepos > Python > libs > ConfigMix
annotate configmix/config.py @ 316:fe2e28e5fd08
Docu: first short notes about configuration tree references
| author | Franz Glasner <fzglas.hg@dom66.de> |
|---|---|
| date | Wed, 05 May 2021 09:22:00 +0200 |
| parents | 043a6412be3c |
| children | 98490375d90c |
| rev | line source |
|---|---|
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
1 # -*- coding: utf-8 -*- |
|
208
bbe8513ea649
Handle flake8 E265 "block comment should start with '# ': use '# :-' instead of '#-' to mark copyright and license comments
Franz Glasner <fzglas.hg@dom66.de>
parents:
207
diff
changeset
|
2 # :- |
| 302 | 3 # :Copyright: (c) 2015-2021, Franz Glasner. All rights reserved. |
|
296
eed16a1ec8f3
Use SPDX license identifiers (either full or short) all over the package
Franz Glasner <fzglas.hg@dom66.de>
parents:
251
diff
changeset
|
4 # :License: BSD-3-Clause. See LICENSE.txt for details. |
|
208
bbe8513ea649
Handle flake8 E265 "block comment should start with '# ': use '# :-' instead of '#-' to mark copyright and license comments
Franz Glasner <fzglas.hg@dom66.de>
parents:
207
diff
changeset
|
5 # :- |
|
82
218807d7d883
Remove header markup from the Python files and put them into the doc .rst files
Franz Glasner <hg@dom66.de>
parents:
79
diff
changeset
|
6 """The unified configuration dictionary with attribute support or |
|
54
aa8345dae995
Generate readable HTML documentation and an API documentation
Franz Glasner <hg@dom66.de>
parents:
40
diff
changeset
|
7 variable substitution. |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
8 |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
9 """ |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
10 |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
11 from __future__ import division, absolute_import, print_function |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
12 |
|
250
ff964825a75a
Style: placement of "__all__"
Franz Glasner <fzglas.hg@dom66.de>
parents:
249
diff
changeset
|
13 |
|
ff964825a75a
Style: placement of "__all__"
Franz Glasner <fzglas.hg@dom66.de>
parents:
249
diff
changeset
|
14 __all__ = ["Configuration"] |
|
ff964825a75a
Style: placement of "__all__"
Franz Glasner <fzglas.hg@dom66.de>
parents:
249
diff
changeset
|
15 |
|
ff964825a75a
Style: placement of "__all__"
Franz Glasner <fzglas.hg@dom66.de>
parents:
249
diff
changeset
|
16 |
|
39
8715e5cc59ac
Print a warning if a variable cannot be expanded.
Franz Glasner <hg@dom66.de>
parents:
36
diff
changeset
|
17 import warnings |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
18 try: |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
19 from collections import OrderedDict as ConfigurationBase |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
20 except ImportError: |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
21 try: |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
22 from ordereddict import OrderedDict as ConfigurationBase |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
23 except ImportError: |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
24 ConfigurationBase = dict |
|
305
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
25 try: |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
26 from urllib.parse import urlsplit |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
27 except ImportError: |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
28 from urlparse import urlsplit |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
29 |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
30 from .variables import lookup_varns, lookup_filter |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
31 from .compat import u |
|
305
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
32 from .constants import REF_NAMESPACE |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
33 |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
34 |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
35 _MARKER = object() |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
36 |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
37 |
|
17
94b5e94fae44
Make the AttributeDict "private" (-> "_AttributeDict")
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
16
diff
changeset
|
38 class _AttributeDict(ConfigurationBase): |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
39 |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
40 def __getattr__(self, name): |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
41 try: |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
42 v = self[name] |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
43 except KeyError: |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
44 raise AttributeError("%s has no attribute %r" % (type(self), name)) |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
45 else: |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
46 # Wrap a dict into another dict with attribute access support |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
47 if isinstance(v, dict): |
|
29
17af7a78710c
FIX: Renaming a class was not really complete
Franz Glasner <hg@dom66.de>
parents:
25
diff
changeset
|
48 return _AttributeDict(v) |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
49 else: |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
50 return v |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
51 |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
52 |
|
17
94b5e94fae44
Make the AttributeDict "private" (-> "_AttributeDict")
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
16
diff
changeset
|
53 class Configuration(_AttributeDict): |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
54 |
| 18 | 55 """The configuration dictionary with attribute support or |
| 56 variable substitution. | |
| 57 | |
| 58 .. note:: When retriving by attribute names variables will *not* | |
| 59 substituted. | |
| 60 | |
| 61 """ | |
| 62 | |
|
305
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
63 # Speed |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
64 _TEXTTYPE = type(u("")) |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
65 _STARTTOK = u(b"{{") |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
66 _ENDTOK = u(b"}}") |
|
314
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
67 _HIER_SEPARATOR = u(b'.') |
|
305
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
68 _NS_SEPARATOR = u(b':') |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
69 _FILTER_SEPARATOR = u(b'|') |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
70 _STARTTOK_REF = _STARTTOK + REF_NAMESPACE + _NS_SEPARATOR |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
71 _ENDTOK_REF = _ENDTOK |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
72 _DOT = u(b'.') |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
73 |
|
314
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
74 def getvarl(self, *names, default=_MARKER, namespace=None): |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
75 """Get a variable where the hierarchy is given in `names` as sequence |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
76 and the namespace is given in `namespace`. |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
77 |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
78 No variable interpolation is done and no filters are applied. |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
79 |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
80 """ |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
81 try: |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
82 if not namespace: |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
83 lookupfn = self._lookupvar |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
84 else: |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
85 if namespace == REF_NAMESPACE: |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
86 lookupfn = self._lookupref |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
87 else: |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
88 lookupfn = lookup_varns(namespace) |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
89 varvalue = lookupfn(*names) |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
90 except KeyError: |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
91 if default is _MARKER: |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
92 raise KeyError("Variable %r not found" % (names,)) |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
93 else: |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
94 return default |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
95 else: |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
96 return varvalue |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
97 |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
98 def getvar(self, varname, default=_MARKER): |
|
115
a5339d39af5c
Begin the documentation of variables and its expansion
Franz Glasner <hg@dom66.de>
parents:
104
diff
changeset
|
99 """Get a variable of the form ``[ns:][[key1.]key2.]name`` - including |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
100 variables from other namespaces. |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
101 |
|
202
2e66178a09d8
Docu: Ban "keyword expansion" -- use "variable interpolation" instead
Franz Glasner <fzglas.hg@dom66.de>
parents:
156
diff
changeset
|
102 No variable interpolation is done and no filters are applied. |
|
115
a5339d39af5c
Begin the documentation of variables and its expansion
Franz Glasner <hg@dom66.de>
parents:
104
diff
changeset
|
103 |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
104 """ |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
105 varns, varname = self._split_ns(varname) |
|
314
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
106 if not varns: |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
107 varnameparts = varname.split(self._HIER_SEPARATOR) |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
108 else: |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
109 varnameparts = (varname,) |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
110 return self.getvarl(*varnameparts, namespace=varns) |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
111 |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
112 def getvarl_s(self, *names, default=_MARKER, namespace=None): |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
113 """Get a variable - including variables from other namespaces. |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
114 |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
115 `names` and `namespace` are interpreted as in |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
116 :meth:`.getvarl`. But variables will be interpolated |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
117 recursively within the variable values and filters are |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
118 applied. |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
119 |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
120 For more details see chapter :ref:`variable-interpolation`. |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
121 |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
122 """ |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
123 try: |
|
314
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
124 obj = self.getvarl(*names, namespace=namespace) |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
125 return self.substitute_variables_in_obj(obj) |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
126 except KeyError: |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
127 if default is _MARKER: |
|
314
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
128 raise |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
129 else: |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
130 return default |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
131 |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
132 def getvar_s(self, varname, default=_MARKER): |
|
24
fa65adab0b71
FIX: Typo in comment
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
23
diff
changeset
|
133 """Get a variable - including variables from other namespaces. |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
134 |
|
115
a5339d39af5c
Begin the documentation of variables and its expansion
Franz Glasner <hg@dom66.de>
parents:
104
diff
changeset
|
135 `varname` is interpreted as in :meth:`.getvar`. But variables |
|
202
2e66178a09d8
Docu: Ban "keyword expansion" -- use "variable interpolation" instead
Franz Glasner <fzglas.hg@dom66.de>
parents:
156
diff
changeset
|
136 will be interpolated recursively within the variable values |
|
2e66178a09d8
Docu: Ban "keyword expansion" -- use "variable interpolation" instead
Franz Glasner <fzglas.hg@dom66.de>
parents:
156
diff
changeset
|
137 and filters are applied. |
|
115
a5339d39af5c
Begin the documentation of variables and its expansion
Franz Glasner <hg@dom66.de>
parents:
104
diff
changeset
|
138 |
|
202
2e66178a09d8
Docu: Ban "keyword expansion" -- use "variable interpolation" instead
Franz Glasner <fzglas.hg@dom66.de>
parents:
156
diff
changeset
|
139 For more details see chapter :ref:`variable-interpolation`. |
|
115
a5339d39af5c
Begin the documentation of variables and its expansion
Franz Glasner <hg@dom66.de>
parents:
104
diff
changeset
|
140 |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
141 """ |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
142 try: |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
143 obj = self.getvar(varname) |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
144 return self.substitute_variables_in_obj(obj) |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
145 except KeyError: |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
146 if default is _MARKER: |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
147 raise |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
148 else: |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
149 return default |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
150 |
|
314
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
151 def getintvarl_s(self, *names, default=_MARKER, namespace=None): |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
152 """Get a (possibly substituted) variable and coerce text to a |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
153 number. |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
154 |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
155 """ |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
156 s = self.getvarl_s(*names, default=default, namespace=namespace) |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
157 if isinstance(s, self._TEXTTYPE): |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
158 return int(s, 0) |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
159 else: |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
160 return s |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
161 |
|
36
b04a350f894b
Implement methods to convert text to other types when getting configuration variables.
Franz Glasner <hg@dom66.de>
parents:
29
diff
changeset
|
162 def getintvar_s(self, varname, default=_MARKER): |
|
b04a350f894b
Implement methods to convert text to other types when getting configuration variables.
Franz Glasner <hg@dom66.de>
parents:
29
diff
changeset
|
163 """Get a (possibly substituted) variable and coerce text to a |
|
b04a350f894b
Implement methods to convert text to other types when getting configuration variables.
Franz Glasner <hg@dom66.de>
parents:
29
diff
changeset
|
164 number. |
|
b04a350f894b
Implement methods to convert text to other types when getting configuration variables.
Franz Glasner <hg@dom66.de>
parents:
29
diff
changeset
|
165 |
|
b04a350f894b
Implement methods to convert text to other types when getting configuration variables.
Franz Glasner <hg@dom66.de>
parents:
29
diff
changeset
|
166 """ |
|
314
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
167 s = self.getvar_s(varname, default=default) |
|
36
b04a350f894b
Implement methods to convert text to other types when getting configuration variables.
Franz Glasner <hg@dom66.de>
parents:
29
diff
changeset
|
168 if isinstance(s, self._TEXTTYPE): |
|
b04a350f894b
Implement methods to convert text to other types when getting configuration variables.
Franz Glasner <hg@dom66.de>
parents:
29
diff
changeset
|
169 return int(s, 0) |
|
b04a350f894b
Implement methods to convert text to other types when getting configuration variables.
Franz Glasner <hg@dom66.de>
parents:
29
diff
changeset
|
170 else: |
|
b04a350f894b
Implement methods to convert text to other types when getting configuration variables.
Franz Glasner <hg@dom66.de>
parents:
29
diff
changeset
|
171 return s |
|
b04a350f894b
Implement methods to convert text to other types when getting configuration variables.
Franz Glasner <hg@dom66.de>
parents:
29
diff
changeset
|
172 |
|
314
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
173 def getboolvarl_s(self, *names, default=_MARKER, namespace=None): |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
174 """Get a (possibly substituted) variable and convert text to a |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
175 boolean |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
176 |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
177 """ |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
178 s = self.getvarl_s(*names, default=default, namespace=namespace) |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
179 if isinstance(s, self._TEXTTYPE): |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
180 sl = s.strip().lower() |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
181 if sl not in self._BOOL_CVT: |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
182 raise ValueError("Not a boolean: %r" % s) |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
183 return self._BOOL_CVT[sl] |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
184 else: |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
185 return s |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
186 |
|
36
b04a350f894b
Implement methods to convert text to other types when getting configuration variables.
Franz Glasner <hg@dom66.de>
parents:
29
diff
changeset
|
187 def getboolvar_s(self, varname, default=_MARKER): |
|
b04a350f894b
Implement methods to convert text to other types when getting configuration variables.
Franz Glasner <hg@dom66.de>
parents:
29
diff
changeset
|
188 """Get a (possibly substituted) variable and convert text to a |
|
b04a350f894b
Implement methods to convert text to other types when getting configuration variables.
Franz Glasner <hg@dom66.de>
parents:
29
diff
changeset
|
189 boolean |
|
b04a350f894b
Implement methods to convert text to other types when getting configuration variables.
Franz Glasner <hg@dom66.de>
parents:
29
diff
changeset
|
190 |
|
b04a350f894b
Implement methods to convert text to other types when getting configuration variables.
Franz Glasner <hg@dom66.de>
parents:
29
diff
changeset
|
191 """ |
|
314
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
192 s = self.getvar_s(varname, default=default) |
|
36
b04a350f894b
Implement methods to convert text to other types when getting configuration variables.
Franz Glasner <hg@dom66.de>
parents:
29
diff
changeset
|
193 if isinstance(s, self._TEXTTYPE): |
|
b04a350f894b
Implement methods to convert text to other types when getting configuration variables.
Franz Glasner <hg@dom66.de>
parents:
29
diff
changeset
|
194 sl = s.strip().lower() |
|
207
b3b5ed34d180
Handle most flake8 errors and warnings.
Franz Glasner <fzglas.hg@dom66.de>
parents:
202
diff
changeset
|
195 if sl not in self._BOOL_CVT: |
|
36
b04a350f894b
Implement methods to convert text to other types when getting configuration variables.
Franz Glasner <hg@dom66.de>
parents:
29
diff
changeset
|
196 raise ValueError("Not a boolean: %r" % s) |
|
b04a350f894b
Implement methods to convert text to other types when getting configuration variables.
Franz Glasner <hg@dom66.de>
parents:
29
diff
changeset
|
197 return self._BOOL_CVT[sl] |
|
b04a350f894b
Implement methods to convert text to other types when getting configuration variables.
Franz Glasner <hg@dom66.de>
parents:
29
diff
changeset
|
198 else: |
|
b04a350f894b
Implement methods to convert text to other types when getting configuration variables.
Franz Glasner <hg@dom66.de>
parents:
29
diff
changeset
|
199 return s |
|
b04a350f894b
Implement methods to convert text to other types when getting configuration variables.
Franz Glasner <hg@dom66.de>
parents:
29
diff
changeset
|
200 |
|
b04a350f894b
Implement methods to convert text to other types when getting configuration variables.
Franz Glasner <hg@dom66.de>
parents:
29
diff
changeset
|
201 # Conversion of booleans |
|
304
d8361dd70d2d
FIX: Map unicode strings to boolean values because this is the canonical texttype in confixmmix
Franz Glasner <fzglas.hg@dom66.de>
parents:
302
diff
changeset
|
202 _BOOL_CVT = { |
|
d8361dd70d2d
FIX: Map unicode strings to boolean values because this is the canonical texttype in confixmmix
Franz Glasner <fzglas.hg@dom66.de>
parents:
302
diff
changeset
|
203 u('1'): True, u('yes'): True, u('true'): True, u('on'): True, |
|
d8361dd70d2d
FIX: Map unicode strings to boolean values because this is the canonical texttype in confixmmix
Franz Glasner <fzglas.hg@dom66.de>
parents:
302
diff
changeset
|
204 u('0'): False, u('no'): False, u('false'): False, u('off'): False |
|
d8361dd70d2d
FIX: Map unicode strings to boolean values because this is the canonical texttype in confixmmix
Franz Glasner <fzglas.hg@dom66.de>
parents:
302
diff
changeset
|
205 } |
|
36
b04a350f894b
Implement methods to convert text to other types when getting configuration variables.
Franz Glasner <hg@dom66.de>
parents:
29
diff
changeset
|
206 |
|
314
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
207 def getfloatvarl_s(self, *names, default=_MARKER, namespace=None): |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
208 """Get a (possibly substituted) variable and convert text to a |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
209 float |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
210 |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
211 """ |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
212 s = self.getvarl_s(*names, default=default, namespace=namespace) |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
213 if isinstance(s, self._TEXTTYPE): |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
214 return float(s) |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
215 else: |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
216 return s |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
217 |
|
36
b04a350f894b
Implement methods to convert text to other types when getting configuration variables.
Franz Glasner <hg@dom66.de>
parents:
29
diff
changeset
|
218 def getfloatvar_s(self, varname, default=_MARKER): |
|
b04a350f894b
Implement methods to convert text to other types when getting configuration variables.
Franz Glasner <hg@dom66.de>
parents:
29
diff
changeset
|
219 """Get a (possibly substituted) variable and convert text to a |
|
b04a350f894b
Implement methods to convert text to other types when getting configuration variables.
Franz Glasner <hg@dom66.de>
parents:
29
diff
changeset
|
220 float |
|
b04a350f894b
Implement methods to convert text to other types when getting configuration variables.
Franz Glasner <hg@dom66.de>
parents:
29
diff
changeset
|
221 |
|
b04a350f894b
Implement methods to convert text to other types when getting configuration variables.
Franz Glasner <hg@dom66.de>
parents:
29
diff
changeset
|
222 """ |
|
b04a350f894b
Implement methods to convert text to other types when getting configuration variables.
Franz Glasner <hg@dom66.de>
parents:
29
diff
changeset
|
223 s = self.getvar_s(varname, default) |
|
b04a350f894b
Implement methods to convert text to other types when getting configuration variables.
Franz Glasner <hg@dom66.de>
parents:
29
diff
changeset
|
224 if isinstance(s, self._TEXTTYPE): |
|
b04a350f894b
Implement methods to convert text to other types when getting configuration variables.
Franz Glasner <hg@dom66.de>
parents:
29
diff
changeset
|
225 return float(s) |
|
b04a350f894b
Implement methods to convert text to other types when getting configuration variables.
Franz Glasner <hg@dom66.de>
parents:
29
diff
changeset
|
226 else: |
|
b04a350f894b
Implement methods to convert text to other types when getting configuration variables.
Franz Glasner <hg@dom66.de>
parents:
29
diff
changeset
|
227 return s |
|
b04a350f894b
Implement methods to convert text to other types when getting configuration variables.
Franz Glasner <hg@dom66.de>
parents:
29
diff
changeset
|
228 |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
229 def _split_ns(self, s): |
|
305
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
230 nameparts = s.split(self._NS_SEPARATOR, 1) |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
231 if len(nameparts) == 1: |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
232 return (None, s, ) |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
233 else: |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
234 return (nameparts[0], nameparts[1], ) |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
235 |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
236 def _split_filters(self, s): |
|
305
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
237 nameparts = s.split(self._FILTER_SEPARATOR) |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
238 if len(nameparts) == 1: |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
239 return (s, [], ) |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
240 else: |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
241 return (nameparts[0].rstrip(), nameparts[1:], ) |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
242 |
|
314
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
243 def _lookupvar(self, *names, default=_MARKER): |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
244 """Lookup a variable within a hierarchy. |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
245 |
|
314
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
246 If no default is given an unexisting `name` raises a `KeyError` |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
247 else `default` is returned. |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
248 """ |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
249 try: |
|
314
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
250 v = self.expand_if_reference(self[names[0]]) |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
251 for p in names[1:]: |
|
305
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
252 v = self.expand_if_reference(v[p]) |
|
104
d9f9a06e0c49
Make a better error message for "TypeError" exceptions when looking up variables.
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
82
diff
changeset
|
253 except TypeError: |
|
207
b3b5ed34d180
Handle most flake8 errors and warnings.
Franz Glasner <fzglas.hg@dom66.de>
parents:
202
diff
changeset
|
254 raise KeyError( |
|
b3b5ed34d180
Handle most flake8 errors and warnings.
Franz Glasner <fzglas.hg@dom66.de>
parents:
202
diff
changeset
|
255 "Configuration variable %r not found" |
|
314
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
256 "(missing intermediate keys?)" % (names,)) |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
257 except KeyError: |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
258 if default is _MARKER: |
|
314
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
259 raise KeyError( |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
260 "Configuration variable %r not found" % (names,)) |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
261 else: |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
262 return default |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
263 return v |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
264 |
|
305
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
265 def _lookupref(self, key, default=_MARKER): |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
266 """ |
| 311 | 267 |
| 268 `key` must be a configuration reference URI without any | |
| 269 (namespace) prefixes and suffixes | |
|
305
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
270 |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
271 """ |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
272 return self.expand_ref_uri(key, default=default) |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
273 |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
274 def expand_if_reference(self, v, default=_MARKER): |
| 311 | 275 """Check whether `v` is a configuration reference and -- if true -- |
| 276 then expand it. | |
|
305
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
277 |
| 310 | 278 `v` must match the pattern ``{{ref:<REFERENCE>}}`` |
|
305
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
279 |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
280 All non-matching texttypes and all non-texttypes are returned |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
281 unchanged. |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
282 |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
283 """ |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
284 if not isinstance(v, self._TEXTTYPE): |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
285 return v |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
286 if not v.startswith(self._STARTTOK_REF) \ |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
287 or not v.endswith(self._ENDTOK_REF): |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
288 return v |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
289 return self.expand_ref_uri( |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
290 v[len(self._STARTTOK_REF):-len(self._ENDTOK_REF)], |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
291 default=default) |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
292 |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
293 def expand_ref_uri(self, uri, default=_MARKER): |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
294 pu = urlsplit(uri) |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
295 if pu.scheme or pu.netloc or pu.path or pu.query: |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
296 raise ValueError("only fragment-only URIs are supported") |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
297 if not pu.fragment: |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
298 return self |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
299 if pu.fragment.startswith(self._DOT): |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
300 raise ValueError("relative refs not supported") |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
301 return self.getvar(pu.fragment, default=default) |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
302 |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
303 def substitute_variables_in_obj(self, obj): |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
304 """Recursively expand variables in the object tree `obj`.""" |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
305 if isinstance(obj, self._TEXTTYPE): |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
306 # a string - really replace the value |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
307 return self.expand_variable(obj) |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
308 elif isinstance(obj, list): |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
309 return [self.substitute_variables_in_obj(i) for i in obj] |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
310 elif isinstance(obj, tuple): |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
311 tmp = [self.substitute_variables_in_obj(i) for i in obj] |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
312 return type(obj)(tmp) |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
313 elif isinstance(obj, dict): |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
314 newdict = type(obj)() |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
315 for k in obj: |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
316 newdict[k] = self.substitute_variables_in_obj(obj[k]) |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
317 return newdict |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
318 elif isinstance(obj, set): |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
319 newset = type(obj)() |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
320 for i in obj: |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
321 newset.add(self.substitute_variables_in_obj(i)) |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
322 else: |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
323 return obj |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
324 |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
325 def expand_variable(self, s): |
| 302 | 326 """Expand variables in the single string `s`""" |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
327 start = s.find(self._STARTTOK, 0) |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
328 while start != -1: |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
329 end = s.find(self._ENDTOK, start) |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
330 if end < 0: |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
331 return s |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
332 varname, filters = self._split_filters(s[start+2:end]) |
|
39
8715e5cc59ac
Print a warning if a variable cannot be expanded.
Franz Glasner <hg@dom66.de>
parents:
36
diff
changeset
|
333 try: |
|
8715e5cc59ac
Print a warning if a variable cannot be expanded.
Franz Glasner <hg@dom66.de>
parents:
36
diff
changeset
|
334 varvalue = self._apply_filters(filters, self.getvar_s(varname)) |
|
8715e5cc59ac
Print a warning if a variable cannot be expanded.
Franz Glasner <hg@dom66.de>
parents:
36
diff
changeset
|
335 except KeyError: |
|
8715e5cc59ac
Print a warning if a variable cannot be expanded.
Franz Glasner <hg@dom66.de>
parents:
36
diff
changeset
|
336 warnings.warn("Cannot expand variable %r in string " |
|
8715e5cc59ac
Print a warning if a variable cannot be expanded.
Franz Glasner <hg@dom66.de>
parents:
36
diff
changeset
|
337 "%r" % (varname, s, ), |
|
8715e5cc59ac
Print a warning if a variable cannot be expanded.
Franz Glasner <hg@dom66.de>
parents:
36
diff
changeset
|
338 UserWarning, |
|
8715e5cc59ac
Print a warning if a variable cannot be expanded.
Franz Glasner <hg@dom66.de>
parents:
36
diff
changeset
|
339 stacklevel=1) |
|
8715e5cc59ac
Print a warning if a variable cannot be expanded.
Franz Glasner <hg@dom66.de>
parents:
36
diff
changeset
|
340 raise |
|
25
baf862cb4860
Handle "None" variable values when substituting
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
24
diff
changeset
|
341 if varvalue is None: |
|
baf862cb4860
Handle "None" variable values when substituting
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
24
diff
changeset
|
342 varvalue = u("") |
|
251
2a8dcab2de8c
Do not implicitely convert a configuration value to text if the value is the result of just a variable expansion.
Franz Glasner <fzglas.hg@dom66.de>
parents:
250
diff
changeset
|
343 # |
|
2a8dcab2de8c
Do not implicitely convert a configuration value to text if the value is the result of just a variable expansion.
Franz Glasner <fzglas.hg@dom66.de>
parents:
250
diff
changeset
|
344 # Dont apply and type conversions to str if the whole `s` is |
|
2a8dcab2de8c
Do not implicitely convert a configuration value to text if the value is the result of just a variable expansion.
Franz Glasner <fzglas.hg@dom66.de>
parents:
250
diff
changeset
|
345 # just one expansion |
|
2a8dcab2de8c
Do not implicitely convert a configuration value to text if the value is the result of just a variable expansion.
Franz Glasner <fzglas.hg@dom66.de>
parents:
250
diff
changeset
|
346 # |
|
2a8dcab2de8c
Do not implicitely convert a configuration value to text if the value is the result of just a variable expansion.
Franz Glasner <fzglas.hg@dom66.de>
parents:
250
diff
changeset
|
347 if (start == 0) and (end + 2 == len(s)): |
|
2a8dcab2de8c
Do not implicitely convert a configuration value to text if the value is the result of just a variable expansion.
Franz Glasner <fzglas.hg@dom66.de>
parents:
250
diff
changeset
|
348 return varvalue |
|
249
1e38ccfba3de
Use explicit type conversion instead of an implicit one.
Franz Glasner <fzglas.hg@dom66.de>
parents:
248
diff
changeset
|
349 replaced = s[:start] + u(str(varvalue)) |
|
248
13283057a21e
Do not use ".format()" but string concatenation or (when conversion to Unicode is needed) the faster %s method
Franz Glasner <fzglas.hg@dom66.de>
parents:
237
diff
changeset
|
350 s = replaced + s[end+2:] |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
351 # don't re-evaluate because `self.getvar_s()` expands already |
|
23
c77cb6bc8eeb
FIX: Handle non-str types in variable substitutions properly
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
18
diff
changeset
|
352 start = s.find(self._STARTTOK, len(replaced)) |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
353 return s |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
354 |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
355 def _apply_filters(self, filters, value): |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
356 for name in filters: |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
357 try: |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
358 filterfn = lookup_filter(name) |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
359 except KeyError: |
|
40
8d66aef2f7fb
Comment about exceptions when filters are missing.
Franz Glasner <hg@dom66.de>
parents:
39
diff
changeset
|
360 # |
|
8d66aef2f7fb
Comment about exceptions when filters are missing.
Franz Glasner <hg@dom66.de>
parents:
39
diff
changeset
|
361 # Convert to NameError because we find a missing filters |
|
8d66aef2f7fb
Comment about exceptions when filters are missing.
Franz Glasner <hg@dom66.de>
parents:
39
diff
changeset
|
362 # a very serious error. |
|
8d66aef2f7fb
Comment about exceptions when filters are missing.
Franz Glasner <hg@dom66.de>
parents:
39
diff
changeset
|
363 # |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
364 raise NameError("Filter %r not found" % name) |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
365 else: |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
366 value = filterfn(self, value) |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
367 return value |
