Re: [Denemo-devel] Help Needed

[Edgar Aichinger]

Am Mittwoch, 11. Dezember 2013, 17:44:34 schrieb Richard Shann:
> > Yes, We could use the OpenSuse build system to build the .rpm, or .deb. I 
> > will have to try and remember my old password. 
> 
> > If a user clicks on one of these files will their package manager fetch all 
> > its dependencies from the distros repository? 
> 
> Can someone who knows please answer this question? I think the answer
> will be yes if by "clicking" we mean running apt-get install or WHY,
> because the debian package holds that information in a form ready to be
> used by the package manager. In any case, installing run-time
> dependencies would be better than having to install the development
> libraries, toolchain etc needed to build Denemo.

Sorry for replying late, I was a bit busy yesterday.

OBS (created by openSUSE but called Open Build Service now) offers a convenient
way for installing these generated binary/noarch packages (noarch is just a 
special case for packages that contain only human readable files and thus can 
be read on any architecture, like e.g. init scripts, and the user usually
isn't even presented this detail when choosing something to install).
There's a powerful search engine at http://search.opensuse.org/ - choose Build 
Service in the menu on the left, type denemo to the search bar and it comes up 
with a list of all available built and published packages, for any distro they 
exist for. At least for openSUSE variants you can then simply click the 
"One click Install" link, which will execute a scriptlet to ask for root 
password, start your package manager, add the repository containing the 
desired build, and install the package including all the dependencies, without 
further user interaction (except maybe clicking ok again once or twice).

That's just one way to go though, also the project page on OBS offers a 
Download page with different methods, see 
https://build.opensuse.org/package/show/home:edogawa/denemo
(upper right side)

The package maintainer has to make sure though that these dependencies are 
seen by the package manager. In case the standard distro repository doesn't 
include them, but are built in some other OBS repo, he should probably create 
a link to the needed package which effectively creates a copy in his own 
project.
I had to do this for lilypond for a while pre oS-12.2 IIRC, because openSUSE 
didn't ship it as 
part of the main distro, only via the multimedia:apps project on OBS.

I see Jeremiah has branched denemo and tries to build for Fedora:
https://build.opensuse.org/package/show/home:jjbenham:branches:home:edogawa/denemo

I haven't tried to do other distro builds myself yet, but i believe that 
there's a set of rpm macros to use for adjusting to different distros (install 
locations, different dependency names etc.) while keeping the build 
instructions in one .spec file, but this is well documented in the OBS wiki, 
http://en.opensuse.org/openSUSE:Build_Service_cross_distribution_howto

Hope that helps,

Edgar
> 
> 
> > If so that is probably a better way to go for normal users. I used it once 
> > before but I could not figure out how to meet all of denemo dependencies in 
> > the OpenBuild system. Now it seems some of the work has been done for us. 
> > 
> > The only advantage 
> 
> Well, another advantage is that the user does not need root permissions
> to install, and so does not need to be so trusting - the version in the
> Debian repository is signed and hopefully the builder has kept an eye on
> the security of the build machine and so on. But perhaps this is only of
> interest to a paranoid few :)
> 
> Richard
> 
> 
> 
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