File storage backend for Django which adds the file contents hash to the filename (like CachedStaticFilesStorage)

storage.py

import os

try:
    # Django 1.7+
    from django.contrib.staticfiles.storage import HashedFilesMixin
except:
    from django.contrib.staticfiles.storage import (
        CachedFilesMixin as HashedFilesMixin)
from django.core.files.storage import FileSystemStorage


class HashedFileSystemStorage(FileSystemStorage, HashedFilesMixin):
    """ File storage backend which adds the MD5 hash to file names """

    def _save(self, name, content):
        path, filename = os.path.split(name)
        root, ext = os.path.splitext(filename)

        file_hash = self.file_hash(filename, content)

        if file_hash is not None:
            file_hash = ".%s" % file_hash

        hashed_name = os.path.join(path, "%s%s%s" % (root, file_hash, ext))

        return super(HashedFileSystemStorage, self)._save(hashed_name, content)