From: Jakub Narebski <jnareb@gmail.com>
To: "J.H." <warthog9@eaglescrag.net>
Cc: git@vger.kernel.org
Subject: Re: [PATCH 10/18] gitweb: Adding isBinaryAction() and isFeedAction() to determine the action type
Date: Fri, 10 Dec 2010 13:25:15 +0100 [thread overview]
Message-ID: <201012101325.16629.jnareb@gmail.com> (raw)
In-Reply-To: <201012101310.55094.jnareb@gmail.com>
On Fri, 10 Dec 2010, Jakub Narebski wrote:
> On Fri, 10 Dec 2010, J.H. wrote:
>
>>>> This is fairly self explanatory, these are here just to centralize the checking
>>>> for these types of actions, as special things need to be done with regards to
>>>> them inside the caching engine.
>>>>
>>>> isBinaryAction() returns true if the action deals with creating binary files
>>>> (this needing :raw output)
>>>
>>> Why do you need special case binary / :raw output? It is not really
>>> necessary if it is done in right way, as shown in my rewrite.
>>
>> Because that's not how my caching engine does it, and the reason for
>> that is I am mimicking how the rest of gitweb does it.
>
> To shorten the explanation why treating binary (needing :raw) output in
> a special way is not necessary: with the way gitweb code is structured
> (with "binmode STDOUT, ':raw'" inside action subroutine), with the way
> capturing output is done (by redirecting STDOUT), and even with the way
> kernel.org caching code is structured the only thing that needs to be
> done to support both text (:utf8, as set at beginning of gitweb) and
> binary (:raw) output is to *dump cache to STDOUT in binary mode*:
>
> binmode $cache_fh, ':raw';
> binmode STDOUT, ':raw';
> File::Copy::copy($fh, \*STDOUT);
>
> Nothing more.
>
> Just dump cache file to STDOUT in binary mode.
Note that special-casing binary output means that you would never be able
to replace custom caching engine with e.g. CHI with Memcached backend,
because that treating some actions in a special way interleaves gitweb
code with guts of caching code.
And memcached might be a way that kernel.org would have to go...
--
Jakub Narebski
Poland
next prev parent reply other threads:[~2010-12-10 12:25 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-09 21:57 [PATCH 00/18] Gitweb caching v8 John 'Warthog9' Hawley
2010-12-09 21:57 ` [PATCH 01/18] gitweb: Prepare for splitting gitweb John 'Warthog9' Hawley
2010-12-09 23:30 ` Jakub Narebski
2010-12-09 21:57 ` [PATCH 02/18] gitweb: add output buffering and associated functions John 'Warthog9' Hawley
2010-12-09 21:57 ` [PATCH 03/18] gitweb: File based caching layer (from git.kernel.org) John 'Warthog9' Hawley
2010-12-09 21:57 ` [PATCH 04/18] gitweb: Minimal testing of gitweb caching John 'Warthog9' Hawley
2010-12-09 21:57 ` [PATCH 05/18] gitweb: Regression fix concerning binary output of files John 'Warthog9' Hawley
2010-12-09 23:33 ` Jakub Narebski
2010-12-09 21:57 ` [PATCH 06/18] gitweb: Add more explicit means of disabling 'Generating...' page John 'Warthog9' Hawley
2010-12-09 21:57 ` [PATCH 07/18] gitweb: Revert back to $cache_enable vs. $caching_enabled John 'Warthog9' Hawley
2010-12-09 23:38 ` Jakub Narebski
2010-12-10 2:38 ` J.H.
2010-12-10 13:48 ` Jakub Narebski
2010-12-09 21:57 ` [PATCH 08/18] gitweb: Change is_cacheable() to return true always John 'Warthog9' Hawley
2010-12-09 23:46 ` Jakub Narebski
2010-12-09 21:57 ` [PATCH 09/18] gitweb: Revert reset_output() back to original code John 'Warthog9' Hawley
2010-12-09 23:58 ` Jakub Narebski
2010-12-10 2:43 ` J.H.
2010-12-09 21:57 ` [PATCH 10/18] gitweb: Adding isBinaryAction() and isFeedAction() to determine the action type John 'Warthog9' Hawley
2010-12-10 0:06 ` Jakub Narebski
2010-12-10 3:39 ` J.H.
2010-12-10 12:10 ` Jakub Narebski
2010-12-10 12:25 ` Jakub Narebski [this message]
2010-12-09 21:57 ` [PATCH 11/18] gitweb: add isDumbClient() check John 'Warthog9' Hawley
2010-12-10 0:12 ` Jakub Narebski
2010-12-10 4:00 ` J.H.
2010-12-11 0:07 ` Junio C Hamano
2010-12-11 0:15 ` Jakub Narebski
2010-12-11 1:15 ` J.H.
2010-12-11 1:40 ` Jakub Narebski
2010-12-09 21:57 ` [PATCH 12/18] gitweb: Change file handles (in caching) to lexical variables as opposed to globs John 'Warthog9' Hawley
2010-12-10 0:16 ` Jakub Narebski
2010-12-10 0:32 ` Junio C Hamano
2010-12-10 0:47 ` Jakub Narebski
2010-12-10 5:56 ` J.H.
2010-12-09 21:57 ` [PATCH 13/18] gitweb: Add commented url & url hash to page footer John 'Warthog9' Hawley
2010-12-10 0:26 ` Jakub Narebski
2010-12-10 6:10 ` J.H.
2010-12-09 21:57 ` [PATCH 14/18] gitweb: add print_transient_header() function for central header printing John 'Warthog9' Hawley
2010-12-10 0:36 ` Jakub Narebski
2010-12-10 6:18 ` J.H.
2010-12-09 21:57 ` [PATCH 15/18] gitweb: Add show_warning() to display an immediate warning, with refresh John 'Warthog9' Hawley
2010-12-10 1:01 ` Jakub Narebski
2010-12-10 7:38 ` J.H.
2010-12-10 14:10 ` Jakub Narebski
2010-12-09 21:57 ` [PATCH 16/18] gitweb: When changing output (STDOUT) change STDERR as well John 'Warthog9' Hawley
2010-12-10 1:36 ` Jakub Narebski
2010-12-12 5:25 ` J.H.
2010-12-12 15:17 ` Jakub Narebski
2010-12-09 21:57 ` [PATCH 17/18] gitweb: Prepare for cached error pages & better error page handling John 'Warthog9' Hawley
2010-12-10 1:49 ` Jakub Narebski
2010-12-10 8:33 ` J.H.
2010-12-10 20:33 ` Jakub Narebski
2010-12-09 21:57 ` [PATCH 18/18] gitweb: Add better error handling for gitweb caching John 'Warthog9' Hawley
2010-12-10 1:56 ` Jakub Narebski
2010-12-09 23:26 ` [PATCH 00/18] Gitweb caching v8 Jakub Narebski
2010-12-10 0:43 ` J.H.
2010-12-10 1:27 ` Jakub Narebski
2010-12-10 0:39 ` Junio C Hamano
2010-12-10 0:45 ` J.H.
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