django_sfsync.py

from django.conf import settings
from django.http import HttpResponseNotFound
from django.views.static import serve as django_serve

import os

def _do_rec_sync(local_root, remote_path, local_path, update):
    if os.path.exists(local_path) and (os.path.isdir(local_path) or not update):
        return
    parent_local_path = os.path.normpath(os.path.join(local_path, '..'))
    parent_remote_path = os.path.normpath(os.path.join(remote_path, '..'))
    _do_rec_sync(local_root, parent_remote_path, parent_local_path, update)
    args = ['rsync', '-dtpq', remote_path, local_path]
    os.spawnvp(os.P_WAIT, 'rsync', args)

def _synchronize(local_root, path, remote_root, update):
    local_path = os.path.join(local_root, path)
    remote_path = os.path.join(remote_root, path)
    _do_rec_sync(local_root, remote_path, local_path, update)

def serve(request, path, document_root=None, show_indexes=False, remote_root=None, update=False):
    local_name = os.path.join(document_root, path)
    if not os.path.exists(document_root):
        return HttpResponseNotFound()
    if os.path.exists(local_name) and not update:
        # The path exists and we don't have to update. This is the only situation when
        # we just serve a file.
        return django_serve(request, path, document_root=document_root, show_indexes=show_indexes)
    # Otherwise, we must sync from remote.
    _synchronize(document_root, path, remote_root, update)
    return django_serve(request, path, document_root=document_root, show_indexes=show_indexes)

urls.py

if settings.DEBUG:
    urlpatterns += patterns('',
            (r'^media/(?P<path>.*)$', 'django_sfsync.serve', {
                'document_root': settings.MEDIA_ROOT,
                'remote_root': '[email protected]:/srv/www/example.com/myproject/webroot/media/',
                'update': True,
                }),
        )

Ever wanted to keep the devel server updated with a copy from the stable one?

Using this code and rsync you will update all the static files in-flight. You only have to keep track on the database.

The update parameters specifies if existing files should be updated or skipped.