Mercurial > hg > configuration
annotate configuration/configuration.py @ 96:bfe4234ee6f4
better ordering of processing for dump()
| author | Jeff Hammel <jhammel@mozilla.com> |
|---|---|
| date | Sun, 29 Apr 2012 01:05:49 -0700 |
| parents | 290c40224e5d |
| children | 91e213025769 |
| rev | line source |
|---|---|
| 0 | 1 #!/usr/bin/env python |
| 2 | |
| 3 """ | |
| 66 | 4 unified configuration with serialization/deserialization |
| 0 | 5 """ |
| 6 | |
|
34
79aca36abd9a
fill in defaults if not present
Jeff Hammel <jhammel@mozilla.com>
parents:
31
diff
changeset
|
7 import copy |
|
37
a1f8dec4d4f9
we has another broken test
Jeff Hammel <jhammel@mozilla.com>
parents:
36
diff
changeset
|
8 import os |
| 0 | 9 import sys |
| 10 import optparse | |
| 11 | |
| 67 | 12 # imports for configuration providers |
| 4 | 13 try: |
| 14 import json | |
| 15 except ImportError: | |
| 16 try: | |
| 17 import simplejson as json | |
| 18 except ImportError: | |
| 19 json = None | |
|
5
7910b0ef0bab
stub configuration providers
Jeff Hammel <jhammel@mozilla.com>
parents:
4
diff
changeset
|
20 try: |
|
7910b0ef0bab
stub configuration providers
Jeff Hammel <jhammel@mozilla.com>
parents:
4
diff
changeset
|
21 import yaml |
|
7910b0ef0bab
stub configuration providers
Jeff Hammel <jhammel@mozilla.com>
parents:
4
diff
changeset
|
22 except ImportError: |
|
7910b0ef0bab
stub configuration providers
Jeff Hammel <jhammel@mozilla.com>
parents:
4
diff
changeset
|
23 yaml = None |
|
7910b0ef0bab
stub configuration providers
Jeff Hammel <jhammel@mozilla.com>
parents:
4
diff
changeset
|
24 |
| 67 | 25 __all__ = ['Configuration', |
| 26 'configuration_providers', | |
| 27 'types', | |
| 28 'UnknownOptionException', | |
| 29 'MissingValueException', | |
| 30 'ConfigurationProviderException', | |
| 31 'TypeCastException', | |
| 32 'ConfigurationOption'] | |
|
36
d218df4d0b4c
add test for missing values
Jeff Hammel <jhammel@mozilla.com>
parents:
35
diff
changeset
|
33 |
|
d218df4d0b4c
add test for missing values
Jeff Hammel <jhammel@mozilla.com>
parents:
35
diff
changeset
|
34 ### exceptions |
|
d218df4d0b4c
add test for missing values
Jeff Hammel <jhammel@mozilla.com>
parents:
35
diff
changeset
|
35 |
| 67 | 36 class UnknownOptionException(Exception): |
| 37 """exception raised when a non-configuration value is present in the configuration""" | |
| 38 | |
|
36
d218df4d0b4c
add test for missing values
Jeff Hammel <jhammel@mozilla.com>
parents:
35
diff
changeset
|
39 class MissingValueException(Exception): |
|
d218df4d0b4c
add test for missing values
Jeff Hammel <jhammel@mozilla.com>
parents:
35
diff
changeset
|
40 """exception raised when a required value is missing""" |
| 6 | 41 |
|
41
1bd4ddf2e81d
deserialization should work now
Jeff Hammel <jhammel@mozilla.com>
parents:
38
diff
changeset
|
42 class ConfigurationProviderException(Exception): |
|
1bd4ddf2e81d
deserialization should work now
Jeff Hammel <jhammel@mozilla.com>
parents:
38
diff
changeset
|
43 """exception raised when a configuration provider is missing, etc""" |
|
1bd4ddf2e81d
deserialization should work now
Jeff Hammel <jhammel@mozilla.com>
parents:
38
diff
changeset
|
44 |
| 46 | 45 class TypeCastException(Exception): |
| 46 """exception raised when a configuration item cannot be coerced to a type""" | |
| 47 | |
| 67 | 48 |
|
26
4fd88b1b08d5
ABC-ing configuration providers
Jeff Hammel <jhammel@mozilla.com>
parents:
25
diff
changeset
|
49 ### configuration providers for serialization/deserialization |
|
4fd88b1b08d5
ABC-ing configuration providers
Jeff Hammel <jhammel@mozilla.com>
parents:
25
diff
changeset
|
50 |
|
5
7910b0ef0bab
stub configuration providers
Jeff Hammel <jhammel@mozilla.com>
parents:
4
diff
changeset
|
51 configuration_providers = [] |
|
26
4fd88b1b08d5
ABC-ing configuration providers
Jeff Hammel <jhammel@mozilla.com>
parents:
25
diff
changeset
|
52 |
|
4fd88b1b08d5
ABC-ing configuration providers
Jeff Hammel <jhammel@mozilla.com>
parents:
25
diff
changeset
|
53 class ConfigurationProvider(object): |
|
4fd88b1b08d5
ABC-ing configuration providers
Jeff Hammel <jhammel@mozilla.com>
parents:
25
diff
changeset
|
54 """ |
|
4fd88b1b08d5
ABC-ing configuration providers
Jeff Hammel <jhammel@mozilla.com>
parents:
25
diff
changeset
|
55 abstract base class for configuration providers for |
|
4fd88b1b08d5
ABC-ing configuration providers
Jeff Hammel <jhammel@mozilla.com>
parents:
25
diff
changeset
|
56 serialization/deserialization |
|
4fd88b1b08d5
ABC-ing configuration providers
Jeff Hammel <jhammel@mozilla.com>
parents:
25
diff
changeset
|
57 """ |
| 27 | 58 def read(self, filename): |
| 59 raise NotImplementedError("Abstract base class") | |
| 60 | |
| 61 def write(self, config, filename): | |
| 62 if isinstance(filename, basestring): | |
| 63 f = file(filename, 'w') | |
| 64 newfile = True | |
| 65 else: | |
| 66 f = filename | |
| 67 newfile = False | |
| 68 try: | |
| 69 self._write(f, config) | |
| 70 finally: | |
| 71 # XXX try: finally: works in python >= 2.5 | |
| 72 if newfile: | |
| 73 f.close() | |
| 74 def _write(self, fp, config): | |
| 75 raise NotImplementedError("Abstract base class") | |
|
26
4fd88b1b08d5
ABC-ing configuration providers
Jeff Hammel <jhammel@mozilla.com>
parents:
25
diff
changeset
|
76 |
|
5
7910b0ef0bab
stub configuration providers
Jeff Hammel <jhammel@mozilla.com>
parents:
4
diff
changeset
|
77 if json: |
|
38
8909ae1cc4ea
fix serialization (stub) tests
Jeff Hammel <jhammel@mozilla.com>
parents:
37
diff
changeset
|
78 class JSON(ConfigurationProvider): |
| 27 | 79 indent = 2 |
|
5
7910b0ef0bab
stub configuration providers
Jeff Hammel <jhammel@mozilla.com>
parents:
4
diff
changeset
|
80 extensions = ['json'] |
| 7 | 81 def read(self, filename): |
| 9 | 82 return json.loads(file(filename).read()) |
| 27 | 83 def _write(self, fp, config): |
|
38
8909ae1cc4ea
fix serialization (stub) tests
Jeff Hammel <jhammel@mozilla.com>
parents:
37
diff
changeset
|
84 fp.write(json.dumps(config, indent=self.indent, sort_keys=True)) |
| 27 | 85 # TODO: could use templates to get order down, etc |
|
30
b27a7cb2dd5b
stub test for configuration providers
Jeff Hammel <jhammel@mozilla.com>
parents:
29
diff
changeset
|
86 configuration_providers.append(JSON()) |
|
5
7910b0ef0bab
stub configuration providers
Jeff Hammel <jhammel@mozilla.com>
parents:
4
diff
changeset
|
87 |
|
7910b0ef0bab
stub configuration providers
Jeff Hammel <jhammel@mozilla.com>
parents:
4
diff
changeset
|
88 if yaml: |
|
38
8909ae1cc4ea
fix serialization (stub) tests
Jeff Hammel <jhammel@mozilla.com>
parents:
37
diff
changeset
|
89 class YAML(ConfigurationProvider): |
|
30
b27a7cb2dd5b
stub test for configuration providers
Jeff Hammel <jhammel@mozilla.com>
parents:
29
diff
changeset
|
90 extensions = ['yml', 'yaml'] |
|
87
928654373755
change default flow style for yaml, http://pyyaml.org/wiki/PyYAMLDocumentation
Jeff Hammel <jhammel@mozilla.com>
parents:
86
diff
changeset
|
91 dump_args = {'default_flow_style': False} |
|
5
7910b0ef0bab
stub configuration providers
Jeff Hammel <jhammel@mozilla.com>
parents:
4
diff
changeset
|
92 def read(self, filename): |
| 6 | 93 f = file(filename) |
| 94 config = yaml.load(f) | |
| 95 f.close() | |
| 96 return config | |
| 27 | 97 def _write(self, fp, config): |
|
87
928654373755
change default flow style for yaml, http://pyyaml.org/wiki/PyYAMLDocumentation
Jeff Hammel <jhammel@mozilla.com>
parents:
86
diff
changeset
|
98 fp.write(yaml.dump(config, **self.dump_args)) |
| 27 | 99 # TODO: could use templates to get order down, etc |
| 6 | 100 |
|
30
b27a7cb2dd5b
stub test for configuration providers
Jeff Hammel <jhammel@mozilla.com>
parents:
29
diff
changeset
|
101 configuration_providers.append(YAML()) |
|
b27a7cb2dd5b
stub test for configuration providers
Jeff Hammel <jhammel@mozilla.com>
parents:
29
diff
changeset
|
102 |
|
50
113e8c2f7cab
start to hook up deserializers
Jeff Hammel <jhammel@mozilla.com>
parents:
49
diff
changeset
|
103 # TODO: add a configuration provider for taking command-line arguments |
|
113e8c2f7cab
start to hook up deserializers
Jeff Hammel <jhammel@mozilla.com>
parents:
49
diff
changeset
|
104 # from a file |
|
113e8c2f7cab
start to hook up deserializers
Jeff Hammel <jhammel@mozilla.com>
parents:
49
diff
changeset
|
105 |
|
30
b27a7cb2dd5b
stub test for configuration providers
Jeff Hammel <jhammel@mozilla.com>
parents:
29
diff
changeset
|
106 __all__.extend([i.__class__.__name__ for i in configuration_providers]) |
| 4 | 107 |
|
44
b3db38b14567
stub adding an option of keeping track of what is parsed
Jeff Hammel <jhammel@mozilla.com>
parents:
43
diff
changeset
|
108 ### optparse interface |
|
b3db38b14567
stub adding an option of keeping track of what is parsed
Jeff Hammel <jhammel@mozilla.com>
parents:
43
diff
changeset
|
109 |
|
b3db38b14567
stub adding an option of keeping track of what is parsed
Jeff Hammel <jhammel@mozilla.com>
parents:
43
diff
changeset
|
110 class ConfigurationOption(optparse.Option): |
|
b3db38b14567
stub adding an option of keeping track of what is parsed
Jeff Hammel <jhammel@mozilla.com>
parents:
43
diff
changeset
|
111 """option that keeps track if it is seen""" |
|
b3db38b14567
stub adding an option of keeping track of what is parsed
Jeff Hammel <jhammel@mozilla.com>
parents:
43
diff
changeset
|
112 # TODO: this should be configurable or something |
|
b3db38b14567
stub adding an option of keeping track of what is parsed
Jeff Hammel <jhammel@mozilla.com>
parents:
43
diff
changeset
|
113 def take_action(self, action, dest, opt, value, values, parser): |
|
b3db38b14567
stub adding an option of keeping track of what is parsed
Jeff Hammel <jhammel@mozilla.com>
parents:
43
diff
changeset
|
114 optparse.Option.take_action(self, action, dest, opt, value, values, parser) |
| 82 | 115 |
| 116 # add the parsed option to the set of things parsed | |
|
44
b3db38b14567
stub adding an option of keeping track of what is parsed
Jeff Hammel <jhammel@mozilla.com>
parents:
43
diff
changeset
|
117 if not hasattr(parser, 'parsed'): |
|
b3db38b14567
stub adding an option of keeping track of what is parsed
Jeff Hammel <jhammel@mozilla.com>
parents:
43
diff
changeset
|
118 parser.parsed = set() |
|
b3db38b14567
stub adding an option of keeping track of what is parsed
Jeff Hammel <jhammel@mozilla.com>
parents:
43
diff
changeset
|
119 parser.parsed.add(dest) |
| 82 | 120 |
| 121 # switch on types | |
| 122 formatter = getattr(parser, 'cli_formatter') | |
| 123 if formatter: | |
| 124 formatter = formatter(dest) | |
| 125 setattr(values, dest, formatter(getattr(values, dest))) | |
|
44
b3db38b14567
stub adding an option of keeping track of what is parsed
Jeff Hammel <jhammel@mozilla.com>
parents:
43
diff
changeset
|
126 |
|
21
0fe74db6a56c
a hacky way to do CLI types handlers
Jeff Hammel <jhammel@mozilla.com>
parents:
20
diff
changeset
|
127 ### plugins for option types |
|
0fe74db6a56c
a hacky way to do CLI types handlers
Jeff Hammel <jhammel@mozilla.com>
parents:
20
diff
changeset
|
128 ### TODO: this could use a bit of thought |
| 31 | 129 ### They should probably be classes |
|
80
35416ad14098
notes to self about how to make this better; still needs a little thought
Jeff Hammel <jhammel@mozilla.com>
parents:
78
diff
changeset
|
130 # class Option(object): |
|
35416ad14098
notes to self about how to make this better; still needs a little thought
Jeff Hammel <jhammel@mozilla.com>
parents:
78
diff
changeset
|
131 # def arguments(self, name, value): |
|
35416ad14098
notes to self about how to make this better; still needs a little thought
Jeff Hammel <jhammel@mozilla.com>
parents:
78
diff
changeset
|
132 # """return arguments appropriate for construction of an optparse.Option |
|
35416ad14098
notes to self about how to make this better; still needs a little thought
Jeff Hammel <jhammel@mozilla.com>
parents:
78
diff
changeset
|
133 # def take_action(self, ...): |
|
35416ad14098
notes to self about how to make this better; still needs a little thought
Jeff Hammel <jhammel@mozilla.com>
parents:
78
diff
changeset
|
134 # """do something appropriate based on type""" |
|
35416ad14098
notes to self about how to make this better; still needs a little thought
Jeff Hammel <jhammel@mozilla.com>
parents:
78
diff
changeset
|
135 |
|
81
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
136 class BaseCLI(object): |
|
80
35416ad14098
notes to self about how to make this better; still needs a little thought
Jeff Hammel <jhammel@mozilla.com>
parents:
78
diff
changeset
|
137 """base_cli for all option types""" |
|
35416ad14098
notes to self about how to make this better; still needs a little thought
Jeff Hammel <jhammel@mozilla.com>
parents:
78
diff
changeset
|
138 |
|
81
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
139 def __call__(self, name, value): |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
140 """return args, kwargs needed to instantiate an optparse option""" |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
141 |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
142 args = value.get('flags', ['--%s' % name]) |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
143 if not args: |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
144 # No CLI interface |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
145 return (), {} |
|
21
0fe74db6a56c
a hacky way to do CLI types handlers
Jeff Hammel <jhammel@mozilla.com>
parents:
20
diff
changeset
|
146 |
|
81
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
147 kw = {'dest': name} |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
148 help = value.get('help', name) |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
149 if 'default' in value: |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
150 kw['default'] = value['default'] |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
151 help += ' [DEFAULT: %s]' % value['default'] |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
152 kw['help'] = help |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
153 kw['action'] = 'store' |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
154 return args, kw |
|
21
0fe74db6a56c
a hacky way to do CLI types handlers
Jeff Hammel <jhammel@mozilla.com>
parents:
20
diff
changeset
|
155 |
| 82 | 156 def take_action(self, value): |
| 157 return value | |
| 158 | |
|
81
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
159 class BoolCLI(BaseCLI): |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
160 |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
161 def __call__(self, name, value): |
|
21
0fe74db6a56c
a hacky way to do CLI types handlers
Jeff Hammel <jhammel@mozilla.com>
parents:
20
diff
changeset
|
162 |
|
81
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
163 # preserve the default values |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
164 help = value.get('help') |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
165 flags = value.get('flags') |
| 23 | 166 |
|
81
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
167 args, kw = BaseCLI.__call__(self, name, value) |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
168 kw['help'] = help # reset |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
169 if value.get('default'): |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
170 kw['action'] = 'store_false' |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
171 if not flags: |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
172 args = ['--no-%s' % name] |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
173 if not help: |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
174 kw['help'] = 'disable %s' % name |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
175 else: |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
176 kw['action'] = 'store_true' |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
177 if not help: |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
178 kw['help'] = 'enable %s' % name |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
179 return args, kw |
|
21
0fe74db6a56c
a hacky way to do CLI types handlers
Jeff Hammel <jhammel@mozilla.com>
parents:
20
diff
changeset
|
180 |
|
81
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
181 class ListCLI(BaseCLI): |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
182 |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
183 def __call__(self, name, value): |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
184 args, kw = BaseCLI.__call__(self, name, value) |
|
21
0fe74db6a56c
a hacky way to do CLI types handlers
Jeff Hammel <jhammel@mozilla.com>
parents:
20
diff
changeset
|
185 |
|
81
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
186 # TODO: could use 'extend' |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
187 # - http://hg.mozilla.org/build/mozharness/file/5f44ba08f4be/mozharness/base/config.py#l41 |
|
21
0fe74db6a56c
a hacky way to do CLI types handlers
Jeff Hammel <jhammel@mozilla.com>
parents:
20
diff
changeset
|
188 |
|
81
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
189 # TODO: what about nested types? |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
190 kw['action'] = 'append' |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
191 return args, kw |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
192 |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
193 class IntCLI(BaseCLI): |
|
21
0fe74db6a56c
a hacky way to do CLI types handlers
Jeff Hammel <jhammel@mozilla.com>
parents:
20
diff
changeset
|
194 |
|
81
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
195 def __call__(self, name, value): |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
196 args, kw = BaseCLI.__call__(self, name, value) |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
197 kw['type'] = 'int' |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
198 return args, kw |
| 23 | 199 |
|
81
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
200 class FloatCLI(BaseCLI): |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
201 |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
202 def __call__(self, name, value): |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
203 args, kw = BaseCLI.__call__(self, name, value) |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
204 kw['type'] = 'float' |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
205 return args, kw |
| 23 | 206 |
| 82 | 207 class DictCLI(ListCLI): |
| 208 | |
| 209 delimeter = '=' | |
| 210 | |
| 211 def take_action(self, value): | |
| 212 bad = [i for i in value if self.delimeter not in i] | |
| 213 if bad: | |
| 214 raise AssertionError("Each value must be delimited by '%s': %s" % (self.delimeter, bad)) | |
| 215 return dict([i.split(self.delimeter, 1) for i in value]) | |
| 216 | |
| 60 | 217 # TODO: 'dict'-type cli interface |
| 218 | |
|
81
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
219 types = {bool: BoolCLI(), |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
220 int: IntCLI(), |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
221 float: FloatCLI(), |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
222 list: ListCLI(), |
| 82 | 223 dict: DictCLI(), |
|
88
36cf1d9bf40b
slightly improve type system
Jeff Hammel <jhammel@mozilla.com>
parents:
87
diff
changeset
|
224 str: BaseCLI(), |
|
81
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
225 None: BaseCLI()} # default |
| 82 | 226 |
|
81
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
227 __all__ += [i.__class__.__name__ for i in types.values()] |
| 4 | 228 |
|
59
b8f066b8ab62
begin migration path towards inheriting from ConfigParser; ideally, Configuration should live in its own class and the CLI class should inherit from that
Jeff Hammel <jhammel@mozilla.com>
parents:
54
diff
changeset
|
229 class Configuration(optparse.OptionParser): |
|
29
fadcc6ab51d4
more (de/)serialization stubbing
Jeff Hammel <jhammel@mozilla.com>
parents:
28
diff
changeset
|
230 """declarative configuration object""" |
|
fadcc6ab51d4
more (de/)serialization stubbing
Jeff Hammel <jhammel@mozilla.com>
parents:
28
diff
changeset
|
231 |
|
fadcc6ab51d4
more (de/)serialization stubbing
Jeff Hammel <jhammel@mozilla.com>
parents:
28
diff
changeset
|
232 options = {} # configuration basis |
| 1 | 233 |
|
75
c119eb07a378
rename/shuffle options to make more sense
Jeff Hammel <jhammel@mozilla.com>
parents:
67
diff
changeset
|
234 def __init__(self, configuration_providers=configuration_providers, types=types, load=None, dump='--dump', **parser_args): |
|
61
ef2d1c6211b9
more stubbing to make Configuration an OptionParser
Jeff Hammel <jhammel@mozilla.com>
parents:
60
diff
changeset
|
235 |
|
84
34c13cde0255
move towards dict or items system
Jeff Hammel <jhammel@mozilla.com>
parents:
82
diff
changeset
|
236 # sanity check |
|
34c13cde0255
move towards dict or items system
Jeff Hammel <jhammel@mozilla.com>
parents:
82
diff
changeset
|
237 if isinstance(self.options, dict): |
|
34c13cde0255
move towards dict or items system
Jeff Hammel <jhammel@mozilla.com>
parents:
82
diff
changeset
|
238 self.option_dict = self.options |
|
34c13cde0255
move towards dict or items system
Jeff Hammel <jhammel@mozilla.com>
parents:
82
diff
changeset
|
239 elif isinstance(self.options, list): |
|
34c13cde0255
move towards dict or items system
Jeff Hammel <jhammel@mozilla.com>
parents:
82
diff
changeset
|
240 # XXX could also be tuple, etc |
|
34c13cde0255
move towards dict or items system
Jeff Hammel <jhammel@mozilla.com>
parents:
82
diff
changeset
|
241 self.option_dict = dict(self.options) |
|
34c13cde0255
move towards dict or items system
Jeff Hammel <jhammel@mozilla.com>
parents:
82
diff
changeset
|
242 else: |
|
34c13cde0255
move towards dict or items system
Jeff Hammel <jhammel@mozilla.com>
parents:
82
diff
changeset
|
243 raise NotImplementedError |
|
34c13cde0255
move towards dict or items system
Jeff Hammel <jhammel@mozilla.com>
parents:
82
diff
changeset
|
244 |
|
61
ef2d1c6211b9
more stubbing to make Configuration an OptionParser
Jeff Hammel <jhammel@mozilla.com>
parents:
60
diff
changeset
|
245 # setup configuration |
| 2 | 246 self.config = {} |
| 6 | 247 self.configuration_providers = configuration_providers |
|
21
0fe74db6a56c
a hacky way to do CLI types handlers
Jeff Hammel <jhammel@mozilla.com>
parents:
20
diff
changeset
|
248 self.types = types |
|
61
ef2d1c6211b9
more stubbing to make Configuration an OptionParser
Jeff Hammel <jhammel@mozilla.com>
parents:
60
diff
changeset
|
249 |
|
ef2d1c6211b9
more stubbing to make Configuration an OptionParser
Jeff Hammel <jhammel@mozilla.com>
parents:
60
diff
changeset
|
250 # setup optionparser |
|
ef2d1c6211b9
more stubbing to make Configuration an OptionParser
Jeff Hammel <jhammel@mozilla.com>
parents:
60
diff
changeset
|
251 if 'description' not in parser_args: |
|
ef2d1c6211b9
more stubbing to make Configuration an OptionParser
Jeff Hammel <jhammel@mozilla.com>
parents:
60
diff
changeset
|
252 parser_args['description'] = getattr(self, '__doc__', '') |
|
ef2d1c6211b9
more stubbing to make Configuration an OptionParser
Jeff Hammel <jhammel@mozilla.com>
parents:
60
diff
changeset
|
253 if 'formatter' not in parser_args: |
|
ef2d1c6211b9
more stubbing to make Configuration an OptionParser
Jeff Hammel <jhammel@mozilla.com>
parents:
60
diff
changeset
|
254 class PlainDescriptionFormatter(optparse.IndentedHelpFormatter): |
|
ef2d1c6211b9
more stubbing to make Configuration an OptionParser
Jeff Hammel <jhammel@mozilla.com>
parents:
60
diff
changeset
|
255 """description formatter for console script entry point""" |
|
ef2d1c6211b9
more stubbing to make Configuration an OptionParser
Jeff Hammel <jhammel@mozilla.com>
parents:
60
diff
changeset
|
256 def format_description(self, description): |
|
ef2d1c6211b9
more stubbing to make Configuration an OptionParser
Jeff Hammel <jhammel@mozilla.com>
parents:
60
diff
changeset
|
257 if description: |
|
ef2d1c6211b9
more stubbing to make Configuration an OptionParser
Jeff Hammel <jhammel@mozilla.com>
parents:
60
diff
changeset
|
258 return description.strip() + '\n' |
|
ef2d1c6211b9
more stubbing to make Configuration an OptionParser
Jeff Hammel <jhammel@mozilla.com>
parents:
60
diff
changeset
|
259 else: |
|
ef2d1c6211b9
more stubbing to make Configuration an OptionParser
Jeff Hammel <jhammel@mozilla.com>
parents:
60
diff
changeset
|
260 return '' |
|
ef2d1c6211b9
more stubbing to make Configuration an OptionParser
Jeff Hammel <jhammel@mozilla.com>
parents:
60
diff
changeset
|
261 parser_args['formatter'] = PlainDescriptionFormatter() |
|
ef2d1c6211b9
more stubbing to make Configuration an OptionParser
Jeff Hammel <jhammel@mozilla.com>
parents:
60
diff
changeset
|
262 parser_args.setdefault('option_class', ConfigurationOption) |
|
59
b8f066b8ab62
begin migration path towards inheriting from ConfigParser; ideally, Configuration should live in its own class and the CLI class should inherit from that
Jeff Hammel <jhammel@mozilla.com>
parents:
54
diff
changeset
|
263 optparse.OptionParser.__init__(self, **parser_args) |
|
61
ef2d1c6211b9
more stubbing to make Configuration an OptionParser
Jeff Hammel <jhammel@mozilla.com>
parents:
60
diff
changeset
|
264 self.parsed = set() |
|
ef2d1c6211b9
more stubbing to make Configuration an OptionParser
Jeff Hammel <jhammel@mozilla.com>
parents:
60
diff
changeset
|
265 self.optparse_options(self) |
| 63 | 266 # add option(s) for configuration_providers |
|
75
c119eb07a378
rename/shuffle options to make more sense
Jeff Hammel <jhammel@mozilla.com>
parents:
67
diff
changeset
|
267 if load: |
|
c119eb07a378
rename/shuffle options to make more sense
Jeff Hammel <jhammel@mozilla.com>
parents:
67
diff
changeset
|
268 self.add_option(load, |
|
c119eb07a378
rename/shuffle options to make more sense
Jeff Hammel <jhammel@mozilla.com>
parents:
67
diff
changeset
|
269 dest='load', action='append', |
|
c119eb07a378
rename/shuffle options to make more sense
Jeff Hammel <jhammel@mozilla.com>
parents:
67
diff
changeset
|
270 help="load configuration from a file") |
| 63 | 271 |
| 272 # add an option for dumping | |
| 273 formats = self.formats() | |
| 274 if formats and dump: | |
| 90 | 275 if isinstance(dump, basestring): |
| 276 dump = [dump] | |
| 277 dump = list(dump) | |
| 278 self.add_option(*dump, dest='dump', | |
| 279 help="Output configuration file; Formats: %s" % formats) | |
| 63 | 280 |
| 2 | 281 |
|
29
fadcc6ab51d4
more (de/)serialization stubbing
Jeff Hammel <jhammel@mozilla.com>
parents:
28
diff
changeset
|
282 ### methods for iteration |
| 67 | 283 ### TODO: make the class a real iterator |
|
29
fadcc6ab51d4
more (de/)serialization stubbing
Jeff Hammel <jhammel@mozilla.com>
parents:
28
diff
changeset
|
284 |
|
11
e00afe2c83bf
stubbing configuration parser
Jeff Hammel <jhammel@mozilla.com>
parents:
10
diff
changeset
|
285 def items(self): |
|
e00afe2c83bf
stubbing configuration parser
Jeff Hammel <jhammel@mozilla.com>
parents:
10
diff
changeset
|
286 # TODO: allow options to be a list of 2-tuples |
|
84
34c13cde0255
move towards dict or items system
Jeff Hammel <jhammel@mozilla.com>
parents:
82
diff
changeset
|
287 if isinstance(self.options, dict): |
|
34c13cde0255
move towards dict or items system
Jeff Hammel <jhammel@mozilla.com>
parents:
82
diff
changeset
|
288 return self.options.items() |
|
34c13cde0255
move towards dict or items system
Jeff Hammel <jhammel@mozilla.com>
parents:
82
diff
changeset
|
289 return self.options |
|
11
e00afe2c83bf
stubbing configuration parser
Jeff Hammel <jhammel@mozilla.com>
parents:
10
diff
changeset
|
290 |
|
24
39f2611db9be
rename a bunch of things and begin to work on the sanity of validation
Jeff Hammel <jhammel@mozilla.com>
parents:
23
diff
changeset
|
291 ### methods for validating configuration |
| 2 | 292 |
|
24
39f2611db9be
rename a bunch of things and begin to work on the sanity of validation
Jeff Hammel <jhammel@mozilla.com>
parents:
23
diff
changeset
|
293 def check(self, config): |
|
39f2611db9be
rename a bunch of things and begin to work on the sanity of validation
Jeff Hammel <jhammel@mozilla.com>
parents:
23
diff
changeset
|
294 """ |
|
39f2611db9be
rename a bunch of things and begin to work on the sanity of validation
Jeff Hammel <jhammel@mozilla.com>
parents:
23
diff
changeset
|
295 check validity of configuration to be added |
|
39f2611db9be
rename a bunch of things and begin to work on the sanity of validation
Jeff Hammel <jhammel@mozilla.com>
parents:
23
diff
changeset
|
296 """ |
|
39f2611db9be
rename a bunch of things and begin to work on the sanity of validation
Jeff Hammel <jhammel@mozilla.com>
parents:
23
diff
changeset
|
297 |
|
39f2611db9be
rename a bunch of things and begin to work on the sanity of validation
Jeff Hammel <jhammel@mozilla.com>
parents:
23
diff
changeset
|
298 # ensure options in configuration are in self.options |
| 86 | 299 unknown_options = [i for i in config if i not in self.option_dict] |
|
24
39f2611db9be
rename a bunch of things and begin to work on the sanity of validation
Jeff Hammel <jhammel@mozilla.com>
parents:
23
diff
changeset
|
300 if unknown_options: |
| 67 | 301 raise UnknownOptionException("Unknown options: %s" % ', '.join(unknown_options)) |
| 6 | 302 |
| 67 | 303 # ensure options are of the right type (if specified) |
|
24
39f2611db9be
rename a bunch of things and begin to work on the sanity of validation
Jeff Hammel <jhammel@mozilla.com>
parents:
23
diff
changeset
|
304 for key, value in config.items(): |
| 86 | 305 _type = self.option_dict[key].get('type') |
| 306 if _type is None and 'default' in self.option_dict[key]: | |
| 307 _type = type(self.option_dict[key]['default']) | |
| 67 | 308 if _type is not None and not isinstance(value, _type): |
| 46 | 309 try: |
| 310 config[key] = _type(value) | |
| 311 except BaseException, e: | |
| 312 raise TypeCastException("Could not coerce %s, %s, to type %s: %s" % (key, value, _type.__name__, e)) | |
|
24
39f2611db9be
rename a bunch of things and begin to work on the sanity of validation
Jeff Hammel <jhammel@mozilla.com>
parents:
23
diff
changeset
|
313 |
|
39f2611db9be
rename a bunch of things and begin to work on the sanity of validation
Jeff Hammel <jhammel@mozilla.com>
parents:
23
diff
changeset
|
314 return config |
|
39f2611db9be
rename a bunch of things and begin to work on the sanity of validation
Jeff Hammel <jhammel@mozilla.com>
parents:
23
diff
changeset
|
315 |
|
39f2611db9be
rename a bunch of things and begin to work on the sanity of validation
Jeff Hammel <jhammel@mozilla.com>
parents:
23
diff
changeset
|
316 def validate(self): |
|
39f2611db9be
rename a bunch of things and begin to work on the sanity of validation
Jeff Hammel <jhammel@mozilla.com>
parents:
23
diff
changeset
|
317 """validate resultant configuration""" |
| 67 | 318 |
| 78 | 319 for key, value in self.items(): |
|
35
321fe58a9eae
flush out validate function
Jeff Hammel <jhammel@mozilla.com>
parents:
34
diff
changeset
|
320 if key not in self.config: |
|
321fe58a9eae
flush out validate function
Jeff Hammel <jhammel@mozilla.com>
parents:
34
diff
changeset
|
321 required = value.get('required') |
|
321fe58a9eae
flush out validate function
Jeff Hammel <jhammel@mozilla.com>
parents:
34
diff
changeset
|
322 if required: |
|
321fe58a9eae
flush out validate function
Jeff Hammel <jhammel@mozilla.com>
parents:
34
diff
changeset
|
323 if isinstance(required, basestring): |
|
321fe58a9eae
flush out validate function
Jeff Hammel <jhammel@mozilla.com>
parents:
34
diff
changeset
|
324 required_message = required |
|
321fe58a9eae
flush out validate function
Jeff Hammel <jhammel@mozilla.com>
parents:
34
diff
changeset
|
325 else: |
|
321fe58a9eae
flush out validate function
Jeff Hammel <jhammel@mozilla.com>
parents:
34
diff
changeset
|
326 required_message = "Parameter %s is required but not present" % key |
| 67 | 327 # TODO: this should probably raise all missing values vs |
|
37
a1f8dec4d4f9
we has another broken test
Jeff Hammel <jhammel@mozilla.com>
parents:
36
diff
changeset
|
328 # one by one |
|
36
d218df4d0b4c
add test for missing values
Jeff Hammel <jhammel@mozilla.com>
parents:
35
diff
changeset
|
329 raise MissingValueException(required_message) |
|
24
39f2611db9be
rename a bunch of things and begin to work on the sanity of validation
Jeff Hammel <jhammel@mozilla.com>
parents:
23
diff
changeset
|
330 # TODO: configuration should be locked after this is called |
|
39f2611db9be
rename a bunch of things and begin to work on the sanity of validation
Jeff Hammel <jhammel@mozilla.com>
parents:
23
diff
changeset
|
331 |
|
39f2611db9be
rename a bunch of things and begin to work on the sanity of validation
Jeff Hammel <jhammel@mozilla.com>
parents:
23
diff
changeset
|
332 ### methods for adding configuration |
| 6 | 333 |
| 2 | 334 def __call__(self, *args): |
| 335 """add items to configuration and check it""" | |
| 67 | 336 |
|
24
39f2611db9be
rename a bunch of things and begin to work on the sanity of validation
Jeff Hammel <jhammel@mozilla.com>
parents:
23
diff
changeset
|
337 for config in args: |
|
39f2611db9be
rename a bunch of things and begin to work on the sanity of validation
Jeff Hammel <jhammel@mozilla.com>
parents:
23
diff
changeset
|
338 self.add(config) |
|
34
79aca36abd9a
fill in defaults if not present
Jeff Hammel <jhammel@mozilla.com>
parents:
31
diff
changeset
|
339 |
|
79aca36abd9a
fill in defaults if not present
Jeff Hammel <jhammel@mozilla.com>
parents:
31
diff
changeset
|
340 # add defaults if not present |
| 78 | 341 for key, value in self.items(): |
|
34
79aca36abd9a
fill in defaults if not present
Jeff Hammel <jhammel@mozilla.com>
parents:
31
diff
changeset
|
342 if 'default' in value and key not in self.config: |
|
79aca36abd9a
fill in defaults if not present
Jeff Hammel <jhammel@mozilla.com>
parents:
31
diff
changeset
|
343 self.config[key] = value['default'] |
|
79aca36abd9a
fill in defaults if not present
Jeff Hammel <jhammel@mozilla.com>
parents:
31
diff
changeset
|
344 |
|
79aca36abd9a
fill in defaults if not present
Jeff Hammel <jhammel@mozilla.com>
parents:
31
diff
changeset
|
345 # validate total configuration |
|
79aca36abd9a
fill in defaults if not present
Jeff Hammel <jhammel@mozilla.com>
parents:
31
diff
changeset
|
346 self.validate() |
|
24
39f2611db9be
rename a bunch of things and begin to work on the sanity of validation
Jeff Hammel <jhammel@mozilla.com>
parents:
23
diff
changeset
|
347 # TODO: configuration should be locked after this is called |
| 2 | 348 |
|
24
39f2611db9be
rename a bunch of things and begin to work on the sanity of validation
Jeff Hammel <jhammel@mozilla.com>
parents:
23
diff
changeset
|
349 def add(self, config, check=True): |
| 2 | 350 """update configuration: not undoable""" |
| 6 | 351 |
|
24
39f2611db9be
rename a bunch of things and begin to work on the sanity of validation
Jeff Hammel <jhammel@mozilla.com>
parents:
23
diff
changeset
|
352 self.check(config) # check config to be added |
| 2 | 353 self.config.update(config) |
| 354 # TODO: option to extend; augment lists/dicts | |
| 355 | |
|
18
d8871956536e
remove cruft and start to organize
Jeff Hammel <jhammel@mozilla.com>
parents:
17
diff
changeset
|
356 ### methods for optparse |
|
d8871956536e
remove cruft and start to organize
Jeff Hammel <jhammel@mozilla.com>
parents:
17
diff
changeset
|
357 ### XXX could go in a subclass |
|
d8871956536e
remove cruft and start to organize
Jeff Hammel <jhammel@mozilla.com>
parents:
17
diff
changeset
|
358 |
| 82 | 359 def cli_formatter(self, option): |
| 86 | 360 handler = self.types[self.option_dict[option].get('type')] |
| 82 | 361 return getattr(handler, 'take_action', lambda x: 1) |
| 362 | |
|
88
36cf1d9bf40b
slightly improve type system
Jeff Hammel <jhammel@mozilla.com>
parents:
87
diff
changeset
|
363 def option_type(self, name): |
|
36cf1d9bf40b
slightly improve type system
Jeff Hammel <jhammel@mozilla.com>
parents:
87
diff
changeset
|
364 value = self.option_dict[name] |
|
36cf1d9bf40b
slightly improve type system
Jeff Hammel <jhammel@mozilla.com>
parents:
87
diff
changeset
|
365 if 'type' in value: |
|
36cf1d9bf40b
slightly improve type system
Jeff Hammel <jhammel@mozilla.com>
parents:
87
diff
changeset
|
366 return value['type'] |
|
36cf1d9bf40b
slightly improve type system
Jeff Hammel <jhammel@mozilla.com>
parents:
87
diff
changeset
|
367 if 'default' in value: |
|
36cf1d9bf40b
slightly improve type system
Jeff Hammel <jhammel@mozilla.com>
parents:
87
diff
changeset
|
368 return type(value['default']) |
|
36cf1d9bf40b
slightly improve type system
Jeff Hammel <jhammel@mozilla.com>
parents:
87
diff
changeset
|
369 |
|
17
a78ab14ae376
separate thing to add options to its own function
Jeff Hammel <jhammel@mozilla.com>
parents:
15
diff
changeset
|
370 def optparse_options(self, parser): |
|
a78ab14ae376
separate thing to add options to its own function
Jeff Hammel <jhammel@mozilla.com>
parents:
15
diff
changeset
|
371 """add optparse options to a OptionParser instance""" |
|
11
e00afe2c83bf
stubbing configuration parser
Jeff Hammel <jhammel@mozilla.com>
parents:
10
diff
changeset
|
372 for key, value in self.items(): |
|
88
36cf1d9bf40b
slightly improve type system
Jeff Hammel <jhammel@mozilla.com>
parents:
87
diff
changeset
|
373 handler = self.types[self.option_type(key)] |
|
21
0fe74db6a56c
a hacky way to do CLI types handlers
Jeff Hammel <jhammel@mozilla.com>
parents:
20
diff
changeset
|
374 args, kw = handler(key, value) |
|
11
e00afe2c83bf
stubbing configuration parser
Jeff Hammel <jhammel@mozilla.com>
parents:
10
diff
changeset
|
375 if not args: |
|
21
0fe74db6a56c
a hacky way to do CLI types handlers
Jeff Hammel <jhammel@mozilla.com>
parents:
20
diff
changeset
|
376 # No CLI interface |
|
11
e00afe2c83bf
stubbing configuration parser
Jeff Hammel <jhammel@mozilla.com>
parents:
10
diff
changeset
|
377 continue |
| 12 | 378 parser.add_option(*args, **kw) |
|
17
a78ab14ae376
separate thing to add options to its own function
Jeff Hammel <jhammel@mozilla.com>
parents:
15
diff
changeset
|
379 |
| 63 | 380 def parse_args(self, *args, **kw): |
|
81
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
381 |
|
f3b2563b2a91
move to a class-based architecture
Jeff Hammel <jhammel@mozilla.com>
parents:
80
diff
changeset
|
382 self.parsed = set() |
| 63 | 383 options, args = optparse.OptionParser.parse_args(self, *args, **kw) |
| 384 | |
| 385 # get CLI configuration options | |
| 386 cli_config = dict([(key, value) for key, value in options.__dict__.items() | |
| 86 | 387 if key in self.option_dict and key in self.parsed]) |
| 63 | 388 |
| 389 # deserialize configuration | |
| 390 configuration_files = getattr(options, 'load', args) | |
| 391 missing = [i for i in configuration_files | |
| 392 if not os.path.exists(i)] | |
| 393 if missing: | |
| 64 | 394 self.error("Missing files: %s" % ', '.join(missing)) |
| 63 | 395 config = [] |
| 396 for f in configuration_files: | |
| 397 try: | |
| 398 config.append(self.deserialize(f)) | |
| 399 except BaseException, e: | |
| 400 parser.error(str(e)) | |
| 401 config.append(cli_config) | |
| 402 | |
| 403 missingvalues = None | |
| 404 try: | |
| 405 # generate configuration | |
| 406 self(*config) | |
| 407 except MissingValueException, missingvalues: | |
|
89
0804a706d6bf
handle CLI errors with optparse
Jeff Hammel <jhammel@mozilla.com>
parents:
88
diff
changeset
|
408 # errors are handled below |
| 63 | 409 pass |
| 410 | |
|
94
291fbbeb6e1e
actually dump configuration
Jeff Hammel <jhammel@mozilla.com>
parents:
93
diff
changeset
|
411 # dump configuration |
|
95
290c40224e5d
improved abstraction; sadly doesnt seem to work
Jeff Hammel <jhammel@mozilla.com>
parents:
94
diff
changeset
|
412 dump = self.dump(options, missingvalues) |
| 63 | 413 |
| 64 | 414 # update options from config |
| 415 options.__dict__.update(self.config) | |
| 416 | |
| 63 | 417 # return parsed arguments |
| 418 return options, args | |
| 419 | |
|
95
290c40224e5d
improved abstraction; sadly doesnt seem to work
Jeff Hammel <jhammel@mozilla.com>
parents:
94
diff
changeset
|
420 def dump(self, options, missingvalues): |
| 90 | 421 """dump configuration, if specified""" |
|
91
1e06fd17b8ad
make dump method configurable
Jeff Hammel <jhammel@mozilla.com>
parents:
90
diff
changeset
|
422 |
|
96
bfe4234ee6f4
better ordering of processing for dump()
Jeff Hammel <jhammel@mozilla.com>
parents:
95
diff
changeset
|
423 if missingvalues: |
|
bfe4234ee6f4
better ordering of processing for dump()
Jeff Hammel <jhammel@mozilla.com>
parents:
95
diff
changeset
|
424 self.error(str(missingvalues)) |
|
bfe4234ee6f4
better ordering of processing for dump()
Jeff Hammel <jhammel@mozilla.com>
parents:
95
diff
changeset
|
425 |
| 90 | 426 dump = getattr(options, 'dump') |
| 427 if dump: | |
| 428 # TODO: have a way of specifying format other than filename | |
| 429 self.serialize(dump) | |
| 430 | |
|
28
c516ab813079
begin stubbing serialization/deserialization
Jeff Hammel <jhammel@mozilla.com>
parents:
27
diff
changeset
|
431 ### serialization/deserialization |
|
c516ab813079
begin stubbing serialization/deserialization
Jeff Hammel <jhammel@mozilla.com>
parents:
27
diff
changeset
|
432 |
| 43 | 433 def formats(self): |
| 434 """formats for deserialization""" | |
| 435 retval = [] | |
| 436 for provider in self.configuration_providers: | |
| 437 if provider.extensions and hasattr(provider, 'write'): | |
| 438 retval.append(provider.extensions[0]) | |
| 439 return retval | |
| 440 | |
|
28
c516ab813079
begin stubbing serialization/deserialization
Jeff Hammel <jhammel@mozilla.com>
parents:
27
diff
changeset
|
441 def configuration_provider(self, format): |
|
c516ab813079
begin stubbing serialization/deserialization
Jeff Hammel <jhammel@mozilla.com>
parents:
27
diff
changeset
|
442 """configuration provider guess for a given filename""" |
|
c516ab813079
begin stubbing serialization/deserialization
Jeff Hammel <jhammel@mozilla.com>
parents:
27
diff
changeset
|
443 for provider in self.configuration_providers: |
|
c516ab813079
begin stubbing serialization/deserialization
Jeff Hammel <jhammel@mozilla.com>
parents:
27
diff
changeset
|
444 if format in provider.extensions: |
|
c516ab813079
begin stubbing serialization/deserialization
Jeff Hammel <jhammel@mozilla.com>
parents:
27
diff
changeset
|
445 return provider |
|
c516ab813079
begin stubbing serialization/deserialization
Jeff Hammel <jhammel@mozilla.com>
parents:
27
diff
changeset
|
446 |
|
34
79aca36abd9a
fill in defaults if not present
Jeff Hammel <jhammel@mozilla.com>
parents:
31
diff
changeset
|
447 def filename2format(self, filename): |
|
79aca36abd9a
fill in defaults if not present
Jeff Hammel <jhammel@mozilla.com>
parents:
31
diff
changeset
|
448 extension = os.path.splitext(filename)[-1] |
|
38
8909ae1cc4ea
fix serialization (stub) tests
Jeff Hammel <jhammel@mozilla.com>
parents:
37
diff
changeset
|
449 return extension.lstrip('.') or None |
|
34
79aca36abd9a
fill in defaults if not present
Jeff Hammel <jhammel@mozilla.com>
parents:
31
diff
changeset
|
450 |
|
79aca36abd9a
fill in defaults if not present
Jeff Hammel <jhammel@mozilla.com>
parents:
31
diff
changeset
|
451 def serialize(self, filename, format=None, full=False): |
|
79aca36abd9a
fill in defaults if not present
Jeff Hammel <jhammel@mozilla.com>
parents:
31
diff
changeset
|
452 """ |
|
79aca36abd9a
fill in defaults if not present
Jeff Hammel <jhammel@mozilla.com>
parents:
31
diff
changeset
|
453 serialize configuration to a file |
|
79aca36abd9a
fill in defaults if not present
Jeff Hammel <jhammel@mozilla.com>
parents:
31
diff
changeset
|
454 - filename: path of file to serialize to |
|
79aca36abd9a
fill in defaults if not present
Jeff Hammel <jhammel@mozilla.com>
parents:
31
diff
changeset
|
455 - format: format of configuration provider |
|
79aca36abd9a
fill in defaults if not present
Jeff Hammel <jhammel@mozilla.com>
parents:
31
diff
changeset
|
456 - full: whether to serialize non-set optional strings [TODO] |
|
79aca36abd9a
fill in defaults if not present
Jeff Hammel <jhammel@mozilla.com>
parents:
31
diff
changeset
|
457 """ |
|
29
fadcc6ab51d4
more (de/)serialization stubbing
Jeff Hammel <jhammel@mozilla.com>
parents:
28
diff
changeset
|
458 # TODO: allow file object vs file name |
|
28
c516ab813079
begin stubbing serialization/deserialization
Jeff Hammel <jhammel@mozilla.com>
parents:
27
diff
changeset
|
459 |
|
34
79aca36abd9a
fill in defaults if not present
Jeff Hammel <jhammel@mozilla.com>
parents:
31
diff
changeset
|
460 if not format: |
|
79aca36abd9a
fill in defaults if not present
Jeff Hammel <jhammel@mozilla.com>
parents:
31
diff
changeset
|
461 format = self.filename2format(filename) |
|
79aca36abd9a
fill in defaults if not present
Jeff Hammel <jhammel@mozilla.com>
parents:
31
diff
changeset
|
462 if not format: |
|
79aca36abd9a
fill in defaults if not present
Jeff Hammel <jhammel@mozilla.com>
parents:
31
diff
changeset
|
463 raise Exception('Please specify a format') |
|
79aca36abd9a
fill in defaults if not present
Jeff Hammel <jhammel@mozilla.com>
parents:
31
diff
changeset
|
464 # TODO: more specific exception type |
|
79aca36abd9a
fill in defaults if not present
Jeff Hammel <jhammel@mozilla.com>
parents:
31
diff
changeset
|
465 |
|
79aca36abd9a
fill in defaults if not present
Jeff Hammel <jhammel@mozilla.com>
parents:
31
diff
changeset
|
466 provider = self.configuration_provider(format) |
|
38
8909ae1cc4ea
fix serialization (stub) tests
Jeff Hammel <jhammel@mozilla.com>
parents:
37
diff
changeset
|
467 if not provider: |
|
8909ae1cc4ea
fix serialization (stub) tests
Jeff Hammel <jhammel@mozilla.com>
parents:
37
diff
changeset
|
468 raise Exception("Provider not found for format: %s" % format) |
|
34
79aca36abd9a
fill in defaults if not present
Jeff Hammel <jhammel@mozilla.com>
parents:
31
diff
changeset
|
469 |
|
79aca36abd9a
fill in defaults if not present
Jeff Hammel <jhammel@mozilla.com>
parents:
31
diff
changeset
|
470 config = copy.deepcopy(self.config) |
|
79aca36abd9a
fill in defaults if not present
Jeff Hammel <jhammel@mozilla.com>
parents:
31
diff
changeset
|
471 |
|
79aca36abd9a
fill in defaults if not present
Jeff Hammel <jhammel@mozilla.com>
parents:
31
diff
changeset
|
472 provider.write(config, filename) |
|
79aca36abd9a
fill in defaults if not present
Jeff Hammel <jhammel@mozilla.com>
parents:
31
diff
changeset
|
473 |
|
28
c516ab813079
begin stubbing serialization/deserialization
Jeff Hammel <jhammel@mozilla.com>
parents:
27
diff
changeset
|
474 def deserialize(self, filename, format=None): |
|
c516ab813079
begin stubbing serialization/deserialization
Jeff Hammel <jhammel@mozilla.com>
parents:
27
diff
changeset
|
475 """load configuration from a file""" |
|
29
fadcc6ab51d4
more (de/)serialization stubbing
Jeff Hammel <jhammel@mozilla.com>
parents:
28
diff
changeset
|
476 # TODO: allow file object vs file name |
|
28
c516ab813079
begin stubbing serialization/deserialization
Jeff Hammel <jhammel@mozilla.com>
parents:
27
diff
changeset
|
477 |
|
50
113e8c2f7cab
start to hook up deserializers
Jeff Hammel <jhammel@mozilla.com>
parents:
49
diff
changeset
|
478 assert os.path.exists(filename) |
|
113e8c2f7cab
start to hook up deserializers
Jeff Hammel <jhammel@mozilla.com>
parents:
49
diff
changeset
|
479 |
|
41
1bd4ddf2e81d
deserialization should work now
Jeff Hammel <jhammel@mozilla.com>
parents:
38
diff
changeset
|
480 # get the format |
|
29
fadcc6ab51d4
more (de/)serialization stubbing
Jeff Hammel <jhammel@mozilla.com>
parents:
28
diff
changeset
|
481 if not format: |
|
41
1bd4ddf2e81d
deserialization should work now
Jeff Hammel <jhammel@mozilla.com>
parents:
38
diff
changeset
|
482 format = self.filename2format(filename) |
|
1bd4ddf2e81d
deserialization should work now
Jeff Hammel <jhammel@mozilla.com>
parents:
38
diff
changeset
|
483 |
|
1bd4ddf2e81d
deserialization should work now
Jeff Hammel <jhammel@mozilla.com>
parents:
38
diff
changeset
|
484 # get the providers in some sensible order |
|
1bd4ddf2e81d
deserialization should work now
Jeff Hammel <jhammel@mozilla.com>
parents:
38
diff
changeset
|
485 providers = self.configuration_providers[:] |
|
1bd4ddf2e81d
deserialization should work now
Jeff Hammel <jhammel@mozilla.com>
parents:
38
diff
changeset
|
486 if format: |
|
1bd4ddf2e81d
deserialization should work now
Jeff Hammel <jhammel@mozilla.com>
parents:
38
diff
changeset
|
487 providers.sort(key=lambda x: int(format in x.extensions), reverse=True) |
|
34
79aca36abd9a
fill in defaults if not present
Jeff Hammel <jhammel@mozilla.com>
parents:
31
diff
changeset
|
488 |
|
41
1bd4ddf2e81d
deserialization should work now
Jeff Hammel <jhammel@mozilla.com>
parents:
38
diff
changeset
|
489 # deserialize the data |
|
1bd4ddf2e81d
deserialization should work now
Jeff Hammel <jhammel@mozilla.com>
parents:
38
diff
changeset
|
490 for provider in providers: |
|
1bd4ddf2e81d
deserialization should work now
Jeff Hammel <jhammel@mozilla.com>
parents:
38
diff
changeset
|
491 try: |
|
1bd4ddf2e81d
deserialization should work now
Jeff Hammel <jhammel@mozilla.com>
parents:
38
diff
changeset
|
492 return provider.read(filename) |
|
1bd4ddf2e81d
deserialization should work now
Jeff Hammel <jhammel@mozilla.com>
parents:
38
diff
changeset
|
493 except: |
|
1bd4ddf2e81d
deserialization should work now
Jeff Hammel <jhammel@mozilla.com>
parents:
38
diff
changeset
|
494 continue |
|
1bd4ddf2e81d
deserialization should work now
Jeff Hammel <jhammel@mozilla.com>
parents:
38
diff
changeset
|
495 else: |
|
1bd4ddf2e81d
deserialization should work now
Jeff Hammel <jhammel@mozilla.com>
parents:
38
diff
changeset
|
496 raise ConfigurationProviderException("Could not load %s" % filename) |