| # Copyright 2013 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| # Based on third_party/WebKit/Source/build/scripts/template_expander.py. |
| |
| import imp |
| import os.path |
| import sys |
| |
| # Disable lint check for finding modules: |
| # pylint: disable=F0401 |
| |
| def _GetDirAbove(dirname): |
| """Returns the directory "above" this file containing |dirname| (which must |
| also be "above" this file).""" |
| path = os.path.abspath(__file__) |
| while True: |
| path, tail = os.path.split(path) |
| assert tail |
| if tail == dirname: |
| return path |
| |
| try: |
| imp.find_module("jinja2") |
| except ImportError: |
| sys.path.append(os.path.join(_GetDirAbove("mojo"), "third_party")) |
| import jinja2 |
| |
| |
| def ApplyTemplate(mojo_generator, path_to_template, params, **kwargs): |
| loader = jinja2.ModuleLoader(os.path.join( |
| mojo_generator.bytecode_path, "%s.zip" % mojo_generator.GetTemplatePrefix( |
| ))) |
| final_kwargs = dict(mojo_generator.GetJinjaParameters()) |
| final_kwargs.update(kwargs) |
| jinja_env = jinja2.Environment(loader=loader, |
| keep_trailing_newline=True, |
| **final_kwargs) |
| jinja_env.globals.update(mojo_generator.GetGlobals()) |
| jinja_env.filters.update(mojo_generator.GetFilters()) |
| template = jinja_env.get_template(path_to_template) |
| return template.render(params) |
| |
| |
| def UseJinja(path_to_template, **kwargs): |
| def RealDecorator(generator): |
| def GeneratorInternal(*args, **kwargs2): |
| parameters = generator(*args, **kwargs2) |
| return ApplyTemplate(args[0], path_to_template, parameters, **kwargs) |
| GeneratorInternal.func_name = generator.func_name |
| return GeneratorInternal |
| return RealDecorator |
| |
| |
| def PrecompileTemplates(generator_modules, output_dir): |
| for module in generator_modules.values(): |
| generator = module.Generator(None) |
| jinja_env = jinja2.Environment(loader=jinja2.FileSystemLoader([os.path.join( |
| os.path.dirname(module.__file__), generator.GetTemplatePrefix())])) |
| jinja_env.filters.update(generator.GetFilters()) |
| jinja_env.compile_templates( |
| os.path.join(output_dir, "%s.zip" % generator.GetTemplatePrefix()), |
| extensions=["tmpl"], |
| zip="stored", |
| py_compile=True, |
| ignore_errors=False) |
