Challenge: who can background this shell command?

Dar Scott Consulting dsc at swcp.com
Thu Aug 1 12:03:00 EDT 2019


So, this is a documentation problem?

> On Aug 1, 2019, at 9:27 AM, Mark Waddingham via use-livecode <use-livecode at lists.runrev.com> wrote:
> 
> On 2019-08-01 17:12, David Bovill via use-livecode wrote:
>> OK - so I have it working by writing to a temporary file.
>> Trying to redirect the output to stdout - so that shell() return the
>> information of the background process - but this freezes:
> 
> Okay so given you want to read/write to the process you launched it seems...
> 
> What's wrong with open process? The *only* difference between open process
> on macOS compared to Linux (and Windows) is that if you try and open process
> an app-bundle (i.e. something ending with '.app') it will do the same as
> launch (as .app bundles aren't executables).
> 
> The installer uses open (elevated) process to communicate with an instance
> of itself with elevated permissions. You can see the code for that here:
> 
> <https://github.com/livecode/livecode/blob/develop/builder/installer_utilities.livecodescript>
> 
> The key routines are installerRun and installerMonitor (the latter is used
> to poll every 20 milliseconds to check if the child process has anything to
> say).
> 
> Warmest Regards,
> 
> Mark.
> 
> -- 
> Mark Waddingham ~ mark at livecode.com ~ http://www.livecode.com/
> LiveCode: Everyone can create apps
> 
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