Splash

----------------

* ``SplashAwareDupeFilter`` and ``splash_request_fingerprint`` are improved:
they now canonicalize URLs and take URL fragments in account;
* ``cache_args`` value fingerprints are now calculated faster.

----------------

* ``cache_args`` SplashRequest argument and
``request.meta['splash']['cache_args']`` key allow to save network traffic
and disk storage by not storing duplicate Splash arguments in disk request
queues and not sending them to Splash multiple times. This feature requires
Splash 2.1+.

To upgrade from v0.4 enable ``SplashDeduplicateArgsMiddleware`` in settings.py::

SPIDER_MIDDLEWARES = {
'scrapy_splash.SplashDeduplicateArgsMiddleware': 100,
}

----------------

* SplashFormRequest class is added; it is a variant of FormRequest which uses
Splash;
* Splash parameters are no longer stored in request.meta twice; this change
should decrease disk queues data size;
* SplashMiddleware now increases request priority when rescheduling the request;
this should decrease disk queue data size and help with stale cookie
problems.

----------------

Package is renamed from ``scrapyjs`` to ``scrapy-splash``.

An easiest way to upgrade is to replace ``scrapyjs`` imports with
``scrapy_splash`` and update ``settings.py`` with new defaults
(check the README).

There are many new helpers to handle JavaScript rendering transparently;
the recommended way is now to use ``scrapy_splash.SplashRequest`` instead
of ``request.meta['splash']``. Please make sure to read the README if
you're upgrading from scrapyjs - you may be able to drop some code from your
project, especially if you want to access response html, handle cookies
and headers.

* new SplashRequest class; it can be used as a replacement for scrapy.Request
to provide a better integration with Splash;
* added support for POST requests;
* SplashResponse, SplashTextResponse and SplashJsonResponse allow to
handle Splash responses transparently, taking care of response.url,
response.body, response.headers and response.status. SplashJsonResponse
allows to access decoded response JSON data as ``response.data``.
* cookie handling improvements: it is possible to handle Scrapy and Splash
cookies transparently; current cookiejar is exposed as response.cookiejar;
* headers are passed to Splash by default;
* URLs with fragments are handled automatically when using SplashRequest;
* logging is improved: ``SplashRequest.__repr__`` shows both requested URL
and Splash URL;
* in case of Splash HTTP 400 errors the response is logged by default;
* an issue with dupefilters is fixed: previously the order of keys in
JSON request body could vary, making requests appear as non-duplicates;
* it is now possible to pass custom headers to Splash server itself;
* test coverage reports are enabled.

----------------

* Scrapy 1.0 and 1.1 support;
* Python 3 support;
* documentation improvements;
* project is moved to https://github.com/scrapy-plugins/scrapy-splash.

------------------

Fixed fingerprint calculation for non-string meta values.