Thank you for the history.
Yes, using other ZIP tools via shell is a possibility, but one I would
rather not do. While some researchers who use our app are very computer
savvy, most are not. Having a LiveCode ZIP in a window with a nice UI
that uses terminology our data analysis tool already uses to let them
'package' their data works well for usage and adoption.
We're already doing invisible shell work-arounds for a number of engine
bugs, with using ffmpg to replace Export Snapshot (see
https://quality.livecode.com/show_bug.cgi?id=23694) the latest. I would
just rather not add another 'work-around'. I was actually spending time
today cleaning out an old work-around from when a minimized stack set
one of its coordinates to -32000 as a way of indicating it was minimized
(before the iconic property existed) and work-around fro when a stack
was minimized it would get a 'resizeStack' message with a new width and
height of 0,0. None of these apply any more but we don't always have
time or awareness to remove work-arounds when they are fixed, which can
sometimes be years after the work-around was put into place.
Anyway, thank you for the suggested approach. It is actually really goo
to know someone else has already done it.
On 10/11/2022 4:34 PM, Pi Digital via use-livecode wrote:
Hi Paul
I got affected by that and other win revzip issues too. I ended up parsing them
through a shell script and using windows built in unzipper. Of course the
downfall with that is a lack of feedback on progress which, for large files
like this, requires a great deal of time to process and feedback is almost a
necessity. I made the shell visible just so that the customer was aware of its
progress. It was ugly in terms of UIX but it got us out of a short term hole. I
hope you can get a more long term solution.
I’m sure you’re capable of building the shell script but let us know if not.
All the best
Sean
On 11 Oct 2022, at 20:37, Paul Dupuis via use-livecode
<use-livecode@lists.runrev.com> wrote:
We just got bit by a 4+ year old bug (See
https://quality.livecode.com/show_bug.cgi?id=20859) where the revZIP library on
macOS can create and read ZIP archives over 2GB, BUT the Windows library can
not.
We distribute our desktop research application as "cross-platform" for macOS and Windows
and just had a researcher on macOS build a "package" (our term for a custom ZIP archive
our LiveCode app can make of the researcher's data files) over 2GB and sent to their Window
colleague who can NOT open it.
Yes, we walked the Windows researcher through unzipping the archive with WinZIP and
accessing all the data files manually, but so much for the "elegance" of our
app being cross-platform due to using LiveCode.
Now, do we add code to check the size and prohibit macOS users from creating
"packages" over 2GB so if they are sent to a Windows researcher, they can be
opened OR do we just warn the Windows researcher if the archive is over 2GB that they
will not be able to open it? Neither is a good option.
This just makes us look bad.
Paul Dupuis
Researchware
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