zip folder of arbitrary size

[Ben Rubinstein]

Phew - thanks Mark!

On 03/01/2018 16:41, Mark Waddingham via use-livecode wrote:
> On 2018-01-03 17:25, Ben Rubinstein via use-livecode wrote:
>> I want an app running unattended on a Windows VM to zip up a folder
>> (on a regular basis).
>>
>> I've not used the revZip library before: when I look at it the first
>> thing I notice is that first step, according to the Dictionary is:
>> Use the revZipOpenArchive command to load a zip archive into memory
>>
>> It's the "into memory" part that bothers me. The folder is probably
>> around 125 - 150MB in total; the zip file I'd expect to be 25MB. I
>> know that we sometimes run into horrible memory problems on these
>> Windows VMs, so this makes me nervous.
> 
> It doesn't load the whole archive into memory - just the 'central directory' - 
> which is the list of files which are present in the zip.
> 
> Extracting data from the zip file occurs when you request it - and then only 
> the bits you ask for.
> 
> Warmest Regards,
> 
> Mark.
>