Django Get Template Source

get_template_source.py

'''
Django doesn't ship with a way to use the template loading framework to output raw source.

It's kinda important since we use the framework to walk the template dirs
'''
import inspect

from django.conf import settings
from django.template.loader import find_template_loader
from django.template import TemplateDoesNotExist

template_source_loaders = None


def build_loaders():
    '''
    Subclass existing loaders but modify to output uncompiled templates
    '''
    new_loaders = []
    for loader in settings.TEMPLATE_LOADERS:
        loader_cls = find_template_loader(loader)
        
        class SourceLoader(loader_cls.__class__):
            def load_template(self, template_name, template_dirs=None):
                source, display_name = self.load_template_source(template_name, template_dirs)
                return source, display_name
        new_loaders.append(SourceLoader())
    return new_loaders


def find_template(name, dirs=None):
    # Calculate template_source_loaders the first time the function is executed
    # because putting this logic in the module-level namespace may cause
    # circular import errors. See Django ticket #1292.
    global template_source_loaders
    if template_source_loaders is None:
        loaders = []
        for loader in build_loaders():
            if loader is not None:
                loaders.append(loader)
        template_source_loaders = tuple(loaders)

    for loader in template_source_loaders:
        try:
            source, display_name = loader(name, dirs)
            return source
        except TemplateDoesNotExist:
            pass
    raise TemplateDoesNotExist(name)