Re: Getting point-and-click working

[Federico Bruni]

Il giorno sab 9 feb 2019 alle 20:03, David Sumbler <address@hidden> 
ha scritto:
> On Sat, 2019-02-09 at 11:05 +0100, Federico Bruni wrote:
> > [...]
> >
> >  So far so good.
> >  By the way, it opens once or twice? If you are using a LilyPond
> >  installer released before October 2018 (today the answer is yes),
> >  you might get two windows. If you are using a version provided by
> >  your distro, you won't probably have this bug. See this PR:
> >  <https://github.com/gperciva/gub/pull/48>
>
> It opens once.  I am using LilyPond 2.19.82 downloaded last August.

Ok, this might depend on the editor you use.
I remember Gedit opened twice before that fix.

In case you have troubles with other editors, you can safely delete "-e 
main" in the exec line in lilypond-wrapper.guile.


> When I click on a link in the displayed file, I get:
>
> Feb  9 18:11:38 vesta kernel: [  992.243804] audit: type=1400
> audit(1549735898.161:48): apparmor="DENIED"
> operation="exec" profile="/usr/bin/evince"
> name="/usr/local/bin/lilypond-wrapper.guile" pid=3261
> comm="evince" requested_mask="x" denied_mask="x" fsuid=1000 ouid=0
>
> Although all of the other 71 files in ~/.local/share/applications/ 
> have
> me as owner and group, the file mimeapps.list has owner and group set
> to root.  I looked at my partner's computer, which is running Ubuntu
> 16.04, and there the corresponding file has owner and group set to the
> user, rather than root.  (Presumably this is some change made in
> Ubuntu, since I don't think I can have done anything to change it.)
>
> So I tried changing the ownership of that file on my computer, and 
> sure
> enough, I no longer see an error in the log file when evince is
> started.  But when I click on a link in the Lilypond file I still get:
>
> Feb  9 18:34:45 vesta kernel: [  200.968460] audit: type=1400
> audit(1549737285.711:45): apparmor="DENIED"
> operation="exec" profile="/usr/bin/evince"
> name="/usr/local/bin/lilypond-wrapper.guile" pid=2507
> comm="evince" requested_mask="x" denied_mask="x" fsuid=1000 ouid=0

0 is the root user id. 1000 is your user id.
ouid is the object owner id and it's assigned to the root user. No idea 
what is the object  here... if it's the executable, then it's correct.


> Clearly I can't sensibly change the ownership of
> /usr/local/bin/lilypond-wrapper.guile, and presumably this is the sort
> of thing AppArmor is supposed to sort out.  I did, however, try adding
> a line specifically for this file in
> /etc/apparmor.d/local/usr.bin.evince, but it hasn't helped.

You should not change the ownership of the scripts in /usr/local/bin.

You might search for other files owned by root in your home directory, 
e.g.:

$ find ~/.local -user root
$ find ~/.config -user root