badly written mscore launcher script

[orbisvicis]

Binary package hint: mscore

affects hardy packages
two issues:
a) if pulseaudio outputs to jackd, then the mscore launch script wont work because it suspends PA, bad idea. Instead check if the jack-sink module is loaded into PulseAudio.
b) script currently precludes any arguments.
*Solution (simple)
$MSCORE "$@";

[Toby Smithe (tsmithe)]

Yeah, this script was written in a bit of a tearing hurry when rushing to get the package ready for FeatureFreeze. Rewriting this script to make sure Pulse is only suspended in the worst case scenario has been on my ToDo list for a while.

[Toby Smithe (tsmithe)]

I have attached an updated version of the script. Please test, and if successful, I will upload a fixed package.

[Toby Smithe (tsmithe)]

Please bear in mind that since 0.9.5-3ubuntu0, the PulseAudio jack plugins have been disabled (as a package in main cannot build-depend on a package in universe).

[Toby Smithe (tsmithe)]

Please test the newly attached script, which fixes a security flaw (via unPATHed "which" calls) and checks for pactl.

[Daniel T Chen (crimsun)]

(Sorry, was at work when you replied.)

11:08 crimsun > tsmithe: (RE: pastebin) I don't think it makes sense to invoke mscore.real if you can't suspend PA. Surely you meant to remove its invocation on line 20?

(WRT http://paste.ubuntu-nl.org/61417/)

[Toby Smithe (tsmithe)]

On Sat, Mar 29, 2008 at 3:10 PM, Daniel T Chen <email address hidden> wrote:
> (Sorry, was at work when you replied.)
>
> 11:08 crimsun > tsmithe: (RE: pastebin) I don't think it makes
> sense to invoke mscore.real if you can't suspend PA. Surely you meant
> to remove its invocation on line 20?

Nah, it does make sense: mScore will still run, and still accept MIDI
input; it just won't produce any sound.

[orbisvicis (orbisvicis)]

thanks for updating the script!
On the surface it works fine/as advertised, however:
$ mscore.real
Couldn't resolve property: 2

$ mscore
/usr/bin/mscore: 28: list: not found
Using JACK for audio
Couldn't resolve property: 2
JACK ERROR: cannot complete execution of the processing graph (Resource temporarily unavailable)
JACK ERROR: zombified - calling shutdown handler
JACK SHUTDOWN

(jackd didnt shut-down, it shutdown the mscore socket)

Now I have no idea why this happens. Like I said, mscore runs fine.

thanks

[Toby Smithe (tsmithe)]

Thanks for the confirmation, I'll update the package and forward the
JACK bug upstream when I get home.

On 3/31/08, orbisvicis <email address hidden> wrote:
> thanks for updating the script!
> On the surface it works fine/as advertised, however:
> $ mscore.real
> Couldn't resolve property: 2
>
> $ mscore
> /usr/bin/mscore: 28: list: not found
> Using JACK for audio
> Couldn't resolve property: 2
> JACK ERROR: cannot complete execution of the processing graph (Resource
> temporarily unavailable)
> JACK ERROR: zombified - calling shutdown handler
> JACK SHUTDOWN
>
> (jackd didnt shut-down, it shutdown the mscore socket)
>
> Now I have no idea why this happens. Like I said, mscore runs fine.
>
> thanks
>
> --
> badly written mscore launcher script
> https://bugs.launchpad.net/bugs/207565
> You received this bug notification because you are a direct subscriber
> of the bug.
>

[Launchpad Janitor (janitor)]

This bug was fixed in the package mscore - 0.9.1d+dfsg-0ubuntu4

---------------
mscore (0.9.1d+dfsg-0ubuntu4) hardy; urgency=low

  * mscore.sh: + Check for module-jack-sink in PulseAudio, rather than
          just suspend blindly.
        + Clean up output.
        + Closes LP: #207565
  * Enable PortAudio support.

 -- Toby Smithe <email address hidden> Mon, 31 Mar 2008 22:44:12 +0100

[Motin (motin)]

@orbisvicis: Increase the timeout for jackd. I use 2000ms ( jackd ... -t2000 ...) which is enough to avoid at least for my setup.