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1 # Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
not at google - send to devlin
2012/01/17 05:42:32
#!/usr/bin/env python
calamity
2012/01/18 05:43:08
Done.
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2 # Use of this source code is governed by a BSD-style license that can be | |
3 # found in the LICENSE file. | |
4 | |
not at google - send to devlin
2012/01/17 05:42:32
We should probably add a general of comment of wha
calamity
2012/01/18 05:43:08
Done.
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5 import model | |
6 import os.path | |
7 import json | |
8 import cc_generator | |
9 import h_generator | |
10 import optparse | |
11 import sys | |
12 | |
13 parser = optparse.OptionParser( | |
14 description='Generate C++ boilerplate code for extension apis from json', | |
not at google - send to devlin
2012/01/17 05:42:32
"Generates a C++ model of a JSON schema" or someth
calamity
2012/01/18 05:43:08
Done.
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15 usage='usage: %prog [options] target referenced_jsons') | |
not at google - send to devlin
2012/01/17 05:42:32
I think a more unixy way of saying something like
calamity
2012/01/18 05:43:08
Done.
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16 parser.add_option('-r', '--root', default='.', | |
17 help='logical include root directory. Path to json files from specified' | |
18 'dir will be the include path.') | |
19 parser.add_option('-d', '--destdir', | |
20 help='root directory to output generated files') | |
21 parser.add_option('-n', '--namespace', | |
22 help='C++ namespace for generated files') | |
23 parser.add_option('-s', '--suffix', default='_api', | |
24 help='C++ namespace suffix for generated files') | |
25 | |
26 (opts, args) = parser.parse_args() | |
27 if not args: | |
28 sys.exit('Error: No input json file') | |
not at google - send to devlin
2012/01/17 05:42:32
Print usage instead of just "Error.." ?
calamity
2012/01/18 05:43:08
Done.
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29 dest_dir = opts.destdir | |
30 root_namespace = opts.namespace | |
31 filename_suffix = opts.suffix | |
32 | |
33 target_json = os.path.normpath(args[0]) | |
not at google - send to devlin
2012/01/17 05:42:32
it's not actually target, that implies output. th
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34 referenced_jsons = args[1:] | |
35 | |
36 json_model = model.Model() | |
37 | |
38 # Load type dependencies into the model | |
not at google - send to devlin
2012/01/17 05:42:32
fullstop
calamity
2012/01/18 05:43:08
Done.
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39 for json_path in referenced_jsons: | |
40 json_path = os.path.normpath(json_path) | |
41 api_file = open(json_path, 'r') | |
42 api_defs = json.loads(api_file.read()) | |
43 api_file.close() | |
44 | |
45 for namespace in api_defs: | |
46 json_model.add_namespace(namespace, root_namespace, | |
47 os.path.relpath(json_path, opts.root), filename_suffix) | |
48 | |
49 # Actually generate for target file. | |
50 target_api_file = open(target_json, 'r') | |
51 target_api_defs = json.loads(target_api_file.read()) | |
52 target_api_file.close() | |
53 for target_namespace in target_api_defs: | |
54 namespace = json_model.add_namespace(target_namespace, root_namespace, | |
55 # Gets the relative path from opts.root to the target_json to correctly | |
56 # determine the include path | |
57 os.path.relpath(target_json, opts.root), filename_suffix) | |
not at google - send to devlin
2012/01/17 05:42:32
pull this comment and the os.path.relpath(...) thi
calamity
2012/01/18 05:43:08
Include path is the #include path? The relative pa
calamity
2012/01/18 05:43:08
Well, it's the output path here, but the #include
not at google - send to devlin
2012/01/18 06:57:28
Cool, this can be 1 line now?
Also, comment above
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58 if not namespace: | |
59 continue | |
60 cc_generator = cc_generator.CCGenerator(namespace, json_model) | |
61 cc_code = cc_generator.generate().render() | |
62 h_generator = h_generator.HGenerator(namespace, json_model) | |
63 h_code = h_generator.generate().render() | |
64 if dest_dir: | |
65 cc_file = open(os.path.join(dest_dir, namespace.parent_dir, | |
66 namespace.filename + '.cc'), 'w') | |
67 cc_file.write(cc_code) | |
68 cc_file.close() | |
69 h_file = open(os.path.join(dest_dir, namespace.parent_dir, | |
70 namespace.filename + '.h'), 'w') | |
71 h_file.write(h_code) | |
72 h_file.close() | |
73 else: | |
74 print '%s.h' % namespace.filename | |
75 print | |
76 print h_code | |
77 print | |
78 print '%s.cc\n' % namespace.filename | |
79 print | |
80 print cc_code | |
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