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Nested BundleError: file does not exist #217

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max-arnold opened this issue Mar 5, 2013 · 3 comments
Closed

Nested BundleError: file does not exist #217

max-arnold opened this issue Mar 5, 2013 · 3 comments

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@max-arnold
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We get exceptions on production server (they typically get away after apache restart) related to bundle resolver. Somehow the nested bundle name ends up being used as file name.

Settings:

ASSETS_DEBUG = False
ASSETS_AUTO_BUILD = False
ASSETS_CACHE = False
ASSETS_ROOT = os.path.join(PROJECT_PATH, 'webassets')
ASSETS_MANIFEST = 'json:' + os.path.join(PROJECT_PATH, 'webassets/webassets_manifest.json')

Bundle definition:

from django_assets import Bundle, register

base_css = Bundle('bootstrap/css/bootstrap.min.css', 'css/new_base.css', 'css/chosen.css', output='gen/base.css')
open_css = Bundle(base_css, 'css/new_open.css', output='gen/open.css')
brand_gallery_css = Bundle(open_css,'css/gallery/style.css', 'css/gallery/elastislide.css', output='gen/gallery.css')
user_photo_css = Bundle(open_css, fileupload_css,'css/user_image_upload.css', output="gen/user_photo.css")

register('base_css',base_css)
register('open_css',open_css)
register('brand_gallery_css',brand_gallery_css)
register('user_photo_css',user_photo_css)

Traceback:

Traceback (most recent call last):
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/core/handlers/wsgi.py", line 255, in __call__
    response = self.get_response(request)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/core/handlers/base.py", line 178, in get_response
    response = self.handle_uncaught_exception(request, resolver, sys.exc_info())
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/core/handlers/base.py", line 224, in handle_uncaught_exception
    return callback(request, **param_dict)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/utils/decorators.py", line 91, in _wrapped_view
    response = view_func(request, *args, **kwargs)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/views/defaults.py", line 41, in server_error
    return http.HttpResponseServerError(template.render(Context({})))
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/template/base.py", line 140, in render
    return self._render(context)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/template/base.py", line 134, in _render
    return self.nodelist.render(context)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/template/base.py", line 830, in render
    bit = self.render_node(node, context)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/template/base.py", line 844, in render_node
    return node.render(context)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/template/loader_tags.py", line 124, in render
    return compiled_parent._render(context)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/template/base.py", line 134, in _render
    return self.nodelist.render(context)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/template/base.py", line 830, in render
    bit = self.render_node(node, context)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/template/base.py", line 844, in render_node
    return node.render(context)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/template/loader_tags.py", line 124, in render
    return compiled_parent._render(context)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/template/base.py", line 134, in _render
    return self.nodelist.render(context)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/template/base.py", line 830, in render
    bit = self.render_node(node, context)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/template/base.py", line 844, in render_node
    return node.render(context)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/template/loader_tags.py", line 63, in render
    result = block.nodelist.render(context)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/template/base.py", line 830, in render
    bit = self.render_node(node, context)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/template/base.py", line 844, in render_node
    return node.render(context)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django_assets/templatetags/assets.py", line 69, in render
    for url in bundle.urls(env=get_env()):
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/webassets/bundle.py", line 681, in urls
    urls.extend(bundle._urls(env, extra_filters, *args, **kwargs))
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/webassets/bundle.py", line 650, in _urls
    for org, cnt in self.resolve_contents(env):
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/webassets/bundle.py", line 148, in resolve_contents
    raise BundleError(e)
BundleError: '/var/www/example.com/src/webassets/open_css' does not exist

The actual traceback hidden behind try/except is below:

Traceback (most recent call last):
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/core/handlers/wsgi.py", line 255, in __call__
    response = self.get_response(request)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/core/handlers/base.py", line 178, in get_response
    response = self.handle_uncaught_exception(request, resolver, sys.exc_info())
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/core/handlers/base.py", line 224, in handle_uncaught_exception
    return callback(request, **param_dict)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/utils/decorators.py", line 91, in _wrapped_view
    response = view_func(request, *args, **kwargs)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/views/defaults.py", line 41, in server_error
    return http.HttpResponseServerError(template.render(Context({})))
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/template/base.py", line 140, in render
    return self._render(context)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/template/base.py", line 134, in _render
    return self.nodelist.render(context)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/template/base.py", line 830, in render
    bit = self.render_node(node, context)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/template/base.py", line 844, in render_node
    return node.render(context)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/template/loader_tags.py", line 124, in render
    return compiled_parent._render(context)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/template/base.py", line 134, in _render
    return self.nodelist.render(context)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/template/base.py", line 830, in render
    bit = self.render_node(node, context)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/template/base.py", line 844, in render_node
    return node.render(context)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/template/loader_tags.py", line 124, in render
    return compiled_parent._render(context)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/template/base.py", line 134, in _render
    return self.nodelist.render(context)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/template/base.py", line 830, in render
    bit = self.render_node(node, context)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/template/base.py", line 844, in render_node
    return node.render(context)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/template/loader_tags.py", line 63, in render
    result = block.nodelist.render(context)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/template/base.py", line 830, in render
    bit = self.render_node(node, context)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django/template/base.py", line 844, in render_node
    return node.render(context)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django_assets/templatetags/assets.py", line 69, in render
    for url in bundle.urls(env=get_env()):
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/webassets/bundle.py", line 682, in urls
    return urls
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/webassets/bundle.py", line 651, in _urls
    if isinstance(cnt, Bundle):
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/webassets/bundle.py", line 145, in resolve_contents
    try:
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/webassets/env.py", line 272, in resolve_source
    return self.search_for_source(item)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/django_assets/env.py", line 136, in search_for_source
    return Resolver.search_for_source(self, item)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/webassets/env.py", line 208, in search_for_source
    return self.search_env_directory(item)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/webassets/env.py", line 171, in search_env_directory
    return self.consider_single_directory(self.env.directory, item)
  File "/var/www/virtualenvs/example.com/lib/python2.7/site-packages/webassets/env.py", line 165, in consider_single_directory
    raise IOError("'%s' does not exist" % expr)
IOError: '/var/www/example.com/src/webassets/open_css' does not exist
@max-arnold
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I added bundle print statement to django_assets/templatetags/assets.py:

    def render(self, context):
        bundle = self.resolve(context)

        print bundle
        result = u""
        for url in bundle.urls(env=get_env()):
            context.update({'ASSET_URL': url})
            try:
                result += self.childnodes.render(context)
            finally:
                context.pop()
        return result

And the output was <Bundle output=None, filters=(), contents=(u'open_css',)>

This is not always reproducible and after apache restart all printed bundles look as usual.

@max-arnold
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It looks like there are some problems with environment:

        def resolve_bundle(name):
            # If a bundle with that name exists, use it. Otherwise,
            # assume a filename is meant.
            try:
                return get_env()[name]
            except KeyError:
                print "FILENAME:", name
                return name

It can't find budle in the environment and prints FILENAME: open_css

@max-arnold max-arnold mentioned this issue Mar 10, 2013
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@max-arnold
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The issue seems to be caused by non thread-safe code in django-assets: miracle2k/django-assets#12

@julen julen mentioned this issue Mar 11, 2013
Closed
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@max-arnold