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1 # Copyright 2013 The Chromium Authors. All rights reserved. | |
2 # Use of this source code is governed by a BSD-style license that can be | |
3 # found in the LICENSE file. | |
4 | |
5 # Based on: | |
6 # http://src.chromium.org/viewvc/blink/trunk/Source/build/scripts/template_expan
der.py | |
7 | |
8 import inspect | |
9 import os | |
10 import sys | |
11 | |
12 _current_dir = os.path.dirname(os.path.realpath(__file__)) | |
13 # jinja2 is in the third_party directory (current directory is | |
14 # mojo/public/bindings/pylib/generate). | |
15 # Insert at front to override system libraries, and after path[0] == script dir | |
16 sys.path.insert(1, os.path.join(_current_dir, | |
17 os.pardir, | |
18 os.pardir, | |
19 os.pardir, | |
20 os.pardir, | |
21 os.pardir, | |
22 'third_party')) | |
23 import jinja2 | |
24 | |
25 | |
26 def ApplyTemplate(base_dir, path_to_template, params, filters=None): | |
27 template_directory, template_name = os.path.split(path_to_template) | |
28 path_to_templates = os.path.join(base_dir, template_directory) | |
29 loader = jinja2.FileSystemLoader([path_to_templates]) | |
30 jinja_env = jinja2.Environment(loader=loader, keep_trailing_newline=True) | |
31 if filters: | |
32 jinja_env.filters.update(filters) | |
33 template = jinja_env.get_template(template_name) | |
34 return template.render(params) | |
35 | |
36 | |
37 def UseJinja(path_to_template, filters=None): | |
38 # Get the directory of our caller's file. | |
39 base_dir = os.path.dirname(inspect.getfile(sys._getframe(1))) | |
40 def RealDecorator(generator): | |
41 def GeneratorInternal(*args, **kwargs): | |
42 parameters = generator(*args, **kwargs) | |
43 return ApplyTemplate(base_dir, path_to_template, parameters, | |
44 filters=filters) | |
45 GeneratorInternal.func_name = generator.func_name | |
46 return GeneratorInternal | |
47 return RealDecorator | |
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