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Side by Side Diff: mojo/public/tools/bindings/pylib/mojom/generate/template_expander.py

Issue 2250183003: Make the fuchsia mojo/public repo the source of truth. (Closed) Base URL: https://github.com/domokit/mojo.git@master
Patch Set: Created 4 years, 4 months ago
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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 imp
9 import inspect
10 import os.path
11 import sys
12
13 # Disable lint check for finding modules:
14 # pylint: disable=F0401
15
16 try:
17 imp.find_module("jinja2")
18 except ImportError:
19 # Assume this file is in tools/pylib/bindings/mojom/generate.
20 sys.path.append(os.path.join(os.path.dirname(os.path.realpath(__file__)),
21 os.pardir, os.pardir, os.pardir, os.pardir,
22 os.pardir, "third_party"))
23 import jinja2
24
25
26 def ApplyTemplate(mojo_generator, base_dir, path_to_template, params,
27 filters=None, **kwargs):
28 template_directory, template_name = os.path.split(path_to_template)
29 path_to_templates = os.path.join(base_dir, template_directory)
30 loader = jinja2.FileSystemLoader([path_to_templates])
31 final_kwargs = dict(mojo_generator.GetJinjaParameters())
32 final_kwargs.update(kwargs)
33 jinja_env = jinja2.Environment(loader=loader, keep_trailing_newline=True,
34 **final_kwargs)
35 jinja_env.globals.update(mojo_generator.GetGlobals())
36 if filters:
37 jinja_env.filters.update(filters)
38 template = jinja_env.get_template(template_name)
39 return template.render(params)
40
41
42 def UseJinja(path_to_template, **kwargs):
43 # Get the directory of our caller's file.
44 base_dir = os.path.dirname(inspect.getfile(sys._getframe(1)))
45 def RealDecorator(generator):
46 def GeneratorInternal(*args, **kwargs2):
47 parameters = generator(*args, **kwargs2)
48 return ApplyTemplate(args[0], base_dir, path_to_template, parameters,
49 **kwargs)
50 GeneratorInternal.func_name = generator.func_name
51 return GeneratorInternal
52 return RealDecorator
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