[fpc-pascal] Methods for autoupdating fpc programs?

[Graeme Geldenhuys]

On 2015-10-03 19:30, Bo Berglund wrote:
> But how could one exchange a running program on the pi from within
> itself?

On non-Windows platforms it is much easier, because you can normally
replace a program on file, while it is running in memory. Windows
doesn't allow that. Either way the solution is quite simple for most
platforms.

tiOPF's 'tiopf_apps' repository includes one such solution. In summary,
the program checks for updates at startup - using HTTP, a database or
whatever. If a update exists, launch the update program and quit. The
update program will then fetch the update, and unpack the archive, then
launch the original program and quit itself.

For our desktop applications will added a message prompt to ask the
end-user if the want to update, but for a automated system you obviously
don't want that part. This solution has worked for us in production site
for a good few years already.

Regards,
  - Graeme -

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fpGUI Toolkit - a cross-platform GUI toolkit using Free Pascal
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