是否可以使用django_compressor/S3/gzip？

Question

如何使用django_compressor將gziped文件發送到Amazon S3？

我嘗試了幾種方法，但它沒有奏效。這是我最後的settings.py配置：

COMPRESS_ENABLED = True 
COMPRESS_OFFLINE = True 

COMPRESS_ROOT = STATIC_ROOT 
COMPRESS_URL = "http://xxx.cloudfront.net/" 
STATIC_URL = COMPRESS_URL 
COMPRESS_OUTPUT_DIR = 'CACHE' 

#COMPRESS_STORAGE = 'storages.backends.s3boto.S3BotoStorage' 
COMPRESS_STORAGE = 'core.storage.CachedS3BotoStorage' 

STATICFILES_STORAGE = 'compressor.storage.GzipCompressorFileStorage' 
COMPRESS_YUI_BINARY = 'java -jar contrib/yuicompressor-2.4.7/build/yuicompressor-2.4.7.jar' 
COMPRESS_YUI_JS_ARGUMENTS = '' 
COMPRESS_CSS_FILTERS = ['compressor.filters.yui.YUICSSFilter'] 
COMPRESS_JS_FILTERS = ['compressor.filters.yui.YUIJSFilter'] 
COMPRESS_CSS_HASHING_METHOD = 'hash' 

和我storage.py

from django.core.files.storage import get_storage_class 
from storages.backends.s3boto import S3BotoStorage 

class CachedS3BotoStorage(S3BotoStorage): 
    """ 
    S3 storage backend that saves the files locally, too. 
    """ 
    def __init__(self, *args, **kwargs): 
     super(CachedS3BotoStorage, self).__init__(*args, **kwargs) 
     self.local_storage = get_storage_class(
      "compressor.storage.CompressorFileStorage")() 

    def save(self, name, content): 
     name = super(CachedS3BotoStorage, self).save(name, content) 
     self.local_storage._save(name, content) 
     return name 

Answer 1

django-storages S3存儲後端supports gzip。加入settings.py：

AWS_IS_GZIPPED = True 

Answer 2

大量的艱苦工作和研究幾天後我終於能夠做到這一點，我決定寫一個detailed guide了。

基本上你需要做的幾件事情：

1. 使用AWS_IS_GZIPPED = True
2. 如果你的S3是美國以外。您需要創建在您覆蓋DefaultHost變量設置爲S3網址的自定義S3Connection類。例如s3-eu-west-1.amazonaws.com
3. 如果您使用的是點鬥名，例如subdomain.domain.tld。您需要設置AWS_S3_CALLING_FORMAT = 'boto.s3.connection.OrdinaryCallingFormat'
4. 你必須設置non_gzipped_file_content = content.file在CachedS3BotoStorage

這是CachedS3BotoStorage類，你需要：

class CachedS3BotoStorage(S3BotoStorage): 
    """ 
    S3 storage backend that saves the files locally, too. 

    """ 
    connection_class = EUConnection 
    location = settings.STATICFILES_LOCATION 

    def __init__(self, *args, **kwargs): 
     super(CachedS3BotoStorage, self).__init__(*args, **kwargs) 
     self.local_storage = get_storage_class(
      "compressor.storage.CompressorFileStorage")() 

    def save(self, name, content): 
     non_gzipped_file_content = content.file 
     name = super(CachedS3BotoStorage, self).save(name, content) 
     content.file = non_gzipped_file_content 
     self.local_storage._save(name, content) 
     return name