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Re: [PATCHv7.1 3/4] gitweb: File based caching layer (from git.kernel.org)

From
Jakub Narebski <jnareb@gmail.com>
Date
Nov 29, 2010, 23:54 UTC
Message-ID
<201011300054.47312.jnareb@gmail.com>
In-Reply-To
<AANLkTim5V_50Er8OiNTWDHNzvqJ3J+biOwuqnBdnR4jH@mail.gmail.com>
On Tue, 30 Nov 2010, demerphq wrote:
> On 30 November 2010 00:07, demerphq <demerphq@gmail.com> wrote:
> > 2010/11/13 Jakub Narebski <jnareb@gmail.com>:
Show 19 quoted lines
> 
> Also in this code:
> 
> 2010/11/28 Jakub Narebski <jnareb@gmail.com>:
> > +#
> > +# Includes
> > +#
> > +if (!exists $INC{'cache.pl'}) {
> > +       my $return = do 'cache.pl';
> > +       die $@ if $@;
> > +       die "Couldn't read 'cache.pl': $!" if (!defined $return);
> > +}
> 
> Why is that preferred to:
> 
>    require 'cache.pl';
> 
> And why is this thing even a .pl file? Why isnt it called
> lib/GitWeb/Cache.pm or something like that?

Because it is not a Perl module; in particular 'cache.pl' uses global variables from gitweb.perl (like $my_url, or $cachedir, or %action) and subroutines from gitweb.perl (like change_output() and reset_output()). That is why it needs to be injected via do, rather than included in its owne namespace with package/require.

P.S. This is not my code, this is patch by J.H. (John Hawley); I did only *minimal* fixups.

P.P.S. My rewrite can be found in 'gitweb/cache-kernel-pu' branch in
my repository (links are to web interface)
  http://repo.or.cz/w/git/jnareb-git.git
  https://github.com/jnareb/git
Sent in http://thread.gmane.org/gmane.comp.version-control.git/158313
-- 
Jakub Narebski
Poland
Previous: demerphqNext: Jakub Narebski
Message 35 of 43 in “Gitweb caching v7”
  1. 0/3 Gitweb caching v7John 'Warthog9' Hawley, Oct 28, 2010
  2. 1/3 gitweb: Add option to force version matchJohn 'Warthog9' Hawley, Oct 28, 2010
  3. Jakub NarebskiOct 28, 2010
  4. Junio C HamanoOct 28, 2010
  5. 2/3 gitweb: add output buffering and associated functionsJohn 'Warthog9' Hawley, Oct 28, 2010
  6. Jakub NarebskiOct 28, 2010
  7. 3/3 gitweb: File based caching layer (from git.kernel.org)John 'Warthog9' Hawley, Oct 28, 2010
  8. Jakub NarebskiOct 28, 2010
  9. Junio C HamanoOct 28, 2010
  10. Junio C HamanoOct 29, 2010
  11. Jakub NarebskiOct 30, 2010
  12. Junio C HamanoOct 31, 2010
  13. Jakub NarebskiOct 31, 2010
  14. 0/4 Gitweb caching v7.1Jakub Narebski, Nov 1, 2010
  15. 0/4 Gitweb caching v7.2Jakub Narebski, Nov 12, 2010
  16. 1/4 gitweb: Prepare for splitting gitwebJakub Narebski, Nov 12, 2010
  17. Junio C HamanoNov 17, 2010
  18. Jakub NarebskiNov 18, 2010
  19. 1/4 gitweb: Prepare for splitting gitwebJakub Narebski, Dec 2, 2010
  20. Junio C HamanoDec 2, 2010
  21. Jakub NarebskiDec 2, 2010
  22. Junio C HamanoDec 2, 2010
  23. Jakub NarebskiDec 2, 2010
  24. 2/4 gitweb: add output buffering and associated functionsJakub Narebski, Nov 12, 2010
  25. 3/4 gitweb: File based caching layer (from git.kernel.org)Jakub Narebski, Nov 12, 2010
  26. 3/4 gitweb: File based caching layer (from git.kernel.org)Jakub Narebski, Nov 28, 2010
  27. Jakub NarebskiNov 28, 2010
  28. Junio C HamanoNov 29, 2010
  29. Junio C HamanoNov 29, 2010
  30. 3/4 gitweb: File based caching layer (from git.kernel.org)Jakub Narebski, Nov 29, 2010
  31. Junio C HamanoNov 30, 2010
  32. Jakub NarebskiNov 30, 2010
  33. demerphqNov 29, 2010
  34. demerphqNov 29, 2010
  35. Jakub NarebskiNov 29, 2010
  36. 4/4 gitweb: Minimal testing of gitweb cachingJakub Narebski, Nov 13, 2010
  37. Junio C HamanoNov 17, 2010
  38. Jakub NarebskiNov 17, 2010
  39. 1/4 gitweb: Prepare for splitting gitwebJakub Narebski, Nov 1, 2010
  40. 1/4 gitweb: Prepare for splitting gitwebJakub Narebski, Nov 1, 2010
  41. 2/4 gitweb: add output buffering and associated functionsJakub Narebski, Nov 1, 2010
  42. 3/4 gitweb: File based caching layer (from git.kernel.org)Jakub Narebski, Nov 1, 2010
  43. 4/4 gitweb: Minimal testing of gitweb cachingJakub Narebski, Nov 1, 2010

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