ci: Add basic Travis CI support

[Carbenium]

Travis CI builds the sln using msbuild in Release and Debug configurations

Still disabled projects:

• Banshee.Osx - can only built on OS X
• Banshee.GStreamerSharp - needs gstreamer-sharp as dependency which isn't that easy to build from official upstream sources
• Banshee.Windows - can only be built on Windows
• Banshee.Dap.AppleDevice - needs libgpod-cil as dependency which is unmaintained and out of date. IDevices can be synchronized using B.Dap.MassStorage. It might be better to remove this one.
• Banshee.Dap.Karma - very old stuff. Probably better to remove, too.
  • Banshee.UbuntuOneMusicStore - more or less dead

B.YouTube pulls its dependecies on Google.GData.* using NuGet

Ref #4

[arfbtwn]

I notice the trusty distro tag, does that mean we can create a ppa (or whatever the current Ubuntu community project is) from our builds?

[Carbenium]

Yeah, packaging is something we should think about, too. In this case the distro tag ensures we build on Ubuntu 14.04. Without it, Travis would default to 12.04, which does not have all dependencies (and frankly is quite old).

[nicman23]

i could probably make the makefiles for a basic deb ...

[Carbenium]

@arfbtwn I enabled some more projects to be built.

Do you want the autotools part in this PR? Although I don't really know how to deal with NuGet dependencies using that build system. So some help there would be really appreciated.

[arfbtwn]

I wouldn't worry about auto-tools for this one - I guess for NuGet packages we'd want to record the dependencies somewhere in the makefiles and have them restored during the configure phase but having the PackageReference elements seems like the way to go for MSBuild, I'm guessing the YouTube support libraries aren't available as distribution packages anymore?

[Carbenium]

I at least couldn't find any distribution packages. Even for gstreamer-sharp I couldn't find anything in the *.deb-world

[nicman23]

werent there an issue to move away from gstreamer-sharp?

[arfbtwn]

@nicman23: yeah #6, it's request for comments though; when we raised it we were having some fundamental trouble with the managed engine that @Carbenium was able to patch in #8.

@Carbenium: No worries on the tricky to build/OS dependent stuff, we'll try and take care of some of it in the autotools version so let's remove the commented build script for gstreamer-sharp.

Somewhat unrelated but I had a look at setting up an Ubuntu PPA, might be a solution for getting the tricky dependencies built and packaged so we can install them on the CI build host and target machines in the usual way with apt.

This is looking really good, I'm not sure about the inter-extension dependency from the ubuntu sound menu to the notification area (in order to get the notify-sharp binding stuff) though - perhaps we should pull that internal define out into a small library (ala Mtp) so we can keep those separate? - if you have time to do the refactor and MSBuild changes then I'll follow up with an autotools commit for it.

[Carbenium]

[...] perhaps we should pull that internal define out into a small library (ala Mtp) so we can keep those separate? - if you have time to do the refactor and MSBuild changes then I'll follow up with an autotools commit for it.

I'll see what I can do ;)

[arfbtwn]

next time you rebase over this if you make 35d6cd9 a fixup for 89787b9 then I think it'll remove it from the history - looks like that's when the build script appeared :)

[Carbenium]

I'm going to take a final look (at least resolve the merge conflict :wink: ) this evening and get back to you on this.

[Carbenium]

@arfbtwn Alright, we have a green build again. This one is ready from my side.