[wp-trac] [WordPress Trac] #18201: Verify updates with md5 checks

[WordPress Trac]

#18201: Verify updates with md5 checks
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 Reporter:  nacin            |      Owner:
     Type:  task (blessed)   |     Status:  new
 Priority:  normal           |  Milestone:  3.3
Component:  Upgrade/Install  |    Version:
 Severity:  normal           |   Keywords:
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 Before an update, we should verify core files with a list of md5s,
 returned through the API. We should do this in order to determine whether
 we can safely do a partial build, or if we should just copy over
 everything.

 During the update, we can avoid copying over any files that are up to
 date, as verified by md5 results beforehand. This should save a number of
 FTP calls, in particular.

 After the update, we should md5 files we've copied over, and see if
 anything went wrong, and try again if necessary. Unfortunately we don't
 always know why updates fail, so we're going to need to test the hell out
 of this and see what kinds of cases we can cover. (Maybe it's time for
 error reporting back to WP.org?)

 Any other thoughts?

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Ticket URL: <http://core.trac.wordpress.org/ticket/18201>
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