How to detect which files need an update

Sarah Reichelt sarahr at
Sun Aug 15 22:58:48 EDT 2004

I give each stack a custom property called "versionNum" or something 
like that. When I upload the new stacks to the FTP server, I rename 
them in a specific format e.g. StackName113.rev.gz would be a 
compressed copy of StackName.rev with a version number of 1.1.3
Then I have a utility on the remote computers that check the files on 
the FTP server, see if any of them have a version number later than the 
ones if the "versionNum" custom property and of so, download, 
uncompress & install them.
I don't rely on dates & times at all.


On 15 Aug 2004, at 2:13 am, Ton Cardona wrote:

> One program of mine is based on compressed files which the user 
> downloads from an FTP to his hard disk. Those files are frequently 
> updated (legal stuff).
> Although it is easy to detect the date of files in the FTP, I am 
> unable to detect whether the files in the hard disk do need an update 
> by comparing their dates to the dates of those in the FTP.
> Thanks in advance for any ideas.
> Ton Cardona

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