[wp-trac] [WordPress Trac] #10611: Support Partial core upgrades

[WordPress Trac]

#10611: Support Partial core upgrades
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 Reporter:  dd32             |       Owner:  dd32          
     Type:  enhancement      |      Status:  new           
 Priority:  normal           |   Milestone:  Future Release
Component:  Upgrade/Install  |     Version:  2.9           
 Severity:  normal           |    Keywords:                
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Comment(by dd32):

 > I think this is a really good idea for point releases and point releases
 only.

 I'm not too sure of that, Take this example for example:

 {{{
 $list = $zip->get_list_of_files();
 foreach $list as $file
    if $partial_upgrade_enabled &&
       file_exists(ABSPATH . $file) &&
       file_get_contents(ABSPATH . $file) ===
 $zip->extract_as_string($file)
    then
       Continue;
    ..Extract the file and overwrite the local one here..
    ..Either the new file is different, or is a new file..
 end foreach;
 }}}

 It saves IO time basically, only changed files get written.

 If the CRC32 route was taken, it could be even faster as the Zip
 decompression wouldn't have to be done.

 > It needs to do something to confirm that the rest of the files are OK
 too though.
 Thats where the CRC32 or file contents check(as above) would be used

 I dont think having a zip with only the changed files is a good solution,
 was just an offered one.

 > I did suggest this during last nights meetup :-)
 I only skim read it.. Must've been where the idea came from, I dont think
 there' was that much chat about it if i missed it?

-- 
Ticket URL: <http://core.trac.wordpress.org/ticket/10611#comment:3>
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