Re: [PATCH 14/18] gitweb: add print_transient_header() function for central header printing

["J.H." <warthog9@eaglescrag.net>]

>> +sub print_transient_header {
>> +	print $::cgi->header(
> 
> Why you use $::cgi->header() instead of equivalent $cgi->header()?
> Note that $::cgi->header() is $main::cgi->header(), and is not
> CGI::header().

Because $main::cgi already was setup.  Since I'm not redefining $cgi
anywhere they evaluate to the same thing since cgi is already a global
variable coming from gitweb itself.

The way I have it now is it's more explicit to being the parent (main).
 It doesn't really matter either way, but I can change it if you like.

>> +				-type=>'text/html',
>> +				-charset => 'utf-8',
>> +				-status=> 200,
>> +				-expires => 'now',
>> +				# HTTP/1.0
>> +				-Pragma => 'no-cache',
>> +				# HTTP/1.1
>> +				-Cache_Control => join(
>> +							', ',
>> +							qw(
>> +								private
>> +								no-cache
>> +								no-store
>> +								must-revalidate
>> +								max-age=0
>> +								pre-check=0
>> +								post-check=0
>> +							)
>> +						)
>> +				);
>> +	return;
>> +}
> 
> Why not use
> 
> 	our %no_cache = (
> 		# HTTP/1.0
> 		-Pragma => 'no-cache',
> 		# HTTP/1.1
> 		-Cache_Control => join(', ', qw(private no-cache no-store must-revalidate
> 		                                max-age=0 pre-check=0 post-check=0)),
> 	);
> 
> (or something like that).  This way you can reuse it even if content
> type is different (e.g. 'text/plain').
> 
> But that is just a proposal.

Finer grained control, though they have the same basic setup.  Probably
will add that, though it's not that big of a deal.

- John 'Warthog9' Hawley