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1 #!/usr/bin/env python | |
2 # Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
3 # Use of this source code is governed by a BSD-style license that can be | |
4 # found in the LICENSE file. | |
5 | |
6 | |
7 import sys | |
8 from functools import partial | |
9 | |
10 from grit.format.policy_templates import policy_template_generator | |
11 from grit.format.policy_templates import writer_configuration | |
12 from grit.node import misc | |
13 from grit.node import structure | |
14 | |
15 | |
16 def GetFormatter(type): | |
17 return partial(_TemplateFormatter, | |
18 'grit.format.policy_templates.writers.%s_writer' % type) | |
19 | |
20 | |
21 def _TemplateFormatter(writer_module_name, root, lang, output_dir): | |
22 '''Creates a template file corresponding to an <output> node of the grit | |
23 tree. | |
24 | |
25 More precisely, processes the whole grit tree for a given <output> node whose | |
26 type is one of adm, plist, plist_strings, admx, adml, doc, json, reg. | |
27 The result of processing is a policy template file with the given type and | |
28 language of the <output> node. This function does the interfacing with | |
29 grit, but the actual template-generating work is done in | |
30 policy_template_generator.PolicyTemplateGenerator. | |
31 | |
32 Args: | |
33 writer_name: A string identifying the TemplateWriter subclass used | |
34 for generating the output. | |
35 root: the <grit> root node of the grit tree. | |
36 lang: the language of outputted text, e.g.: 'en' | |
37 output_dir: The output directory, currently unused here. | |
38 | |
39 Yields the text of the template file. | |
40 ''' | |
41 __import__(writer_module_name) | |
42 writer_module = sys.modules[writer_module_name] | |
43 config = writer_configuration.GetConfigurationForBuild(root.defines) | |
44 policy_data = _ParseGritNodes(root, lang) | |
45 policy_generator = \ | |
46 policy_template_generator.PolicyTemplateGenerator(config, policy_data) | |
47 writer = writer_module.GetWriter(config) | |
48 yield policy_generator.GetTemplateText(writer) | |
49 | |
50 | |
51 def _ParseGritNodes(root, lang): | |
52 '''Collects the necessary information from the grit tree: | |
53 the message strings and the policy definitions. | |
54 | |
55 Args: | |
56 root: The root of the grit tree. | |
57 lang: the language of outputted text, e.g.: 'en' | |
58 | |
59 Returns: | |
60 Policy data. | |
61 ''' | |
62 policy_data = None | |
63 for item in root.ActiveDescendants(): | |
64 with item: | |
65 if (isinstance(item, structure.StructureNode) and | |
66 item.attrs['type'] == 'policy_template_metafile'): | |
67 assert policy_data is None | |
68 json_text = item.gatherer.Translate( | |
69 lang, | |
70 pseudo_if_not_available=item.PseudoIsAllowed(), | |
71 fallback_to_english=item.ShouldFallbackToEnglish()) | |
72 policy_data = eval(json_text) | |
73 return policy_data | |
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