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from SCons.Script import *
import jinja2
loader = jinja2.FileSystemLoader('.')
jinja2_env = jinja2.Environment(
loader = loader,
trim_blocks = True,
lstrip_blocks = True,
)
jinja2_env.filters['hex'] = lambda value: '%#x' % value
jinja2_env.filters['size_prefix'] = lambda value: '%d%s' % next((value / 1024**i, c) for i, c in [(2, 'M'), (1, 'k'), (0, '')] if value % 1024**i == 0)
def jinja2_build(target, source, env):
template = jinja2_env.get_template(str(source[0]))
template_env = env.get('TEMPLATE_ENV', {})
output = template.render(**template_env) + '\n'
open(str(target[0]), 'w').write(output)
jinja2_builder = Builder(action = Action(jinja2_build, '$J2COMSTR', varlist = ['TEMPLATE_ENV']))
def Jinja2(env, target, source, **kwargs):
return env.Jinja2Build(target, source, TEMPLATE_ENV = kwargs)
def exists():
return True
def generate(env):
env.Append(
BUILDERS = {'Jinja2Build': jinja2_builder},
)
env.AddMethod(Jinja2)
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