Re: Perl postinst script running external commands
On Tue, 1 Oct 2002 14:27, Matthias Urlichs wrote:
> > but would not work for calling Debconf from Bash.
>
> You're right -- bash lacks this feature. However, the context of the
> original question specifically mentioned Perl (or so I remember -- anyway,
> it used backticks, and nobody would use backticks in bash just for their
> side effects of running a program ;-).
True, the original question was about Perl, but there are bigger issues to
consider.
> > Debconf could easily run in a client-server manner and the client could
> > connect to a unix domain socket.
>
> Unfortunately, the current protocol is too stateful for that -- this
However the interface that is exported to the application is not stateful at
all.
> idea would insert a client process between the display system and the
> configuree, but it won't change the real problem -- the various shell
> functions would still need a shared file descriptor. Hmmm... you could do
> it with a pair of FIFOs in the file system, though. I'll have to think
> about that.
Yes, a pair of FIFO's will allow regular shell scripts to do the debconf
thing.
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