[ubuntu-mythtv] How do I test my own patch with Mythbuntu trunk builds.

[Michael Haas]

Roo schrieb:
> Hi,
> 
> I would like to use Mythbuntu for my production Mythtv box. I have
> been running svn trunk for a number of years and do not want to revert
> to -fixes.
> 
> I want to be able to apply my own patches for testing before
> submitting upstream, does the Mythbuntu project provide deb sources,
> is this what I need?
> 

Hey.

There are basically two ways to get yourself a nice source tree:

1)
* Put a deb-src line for your favorite mythbuntu-trunk mirror in your
/etc/apt/sources.list

* sudo aptitude update

* sudo apt-get source mythtv

2) This is more interesting because you can still use svn and bzr for
source management (eg, get updates and generate patches)

* Install subversion (SVN) and bzr:
sudo aptitude install subversion bzr

* Check out MythTV. According to <http://svn.mythtv.org/>, you use:
svn co http://svn.mythtv.org/svn/trunk/mythtv
This will create a directory "mythtv/" which contains the source code

* Now, get our packaging magic. You can see our bzr repositories here:
<https://code.launchpad.net/~ubuntu-mythtv/>. For MythTV, we use this:
bzr branch http://bazaar.launchpad.net/~ubuntu-mythtv/mythtv/mythtv-trunk
Now you have a directory called "mythtv-trunk" with the packaging scripts.

* Now we need to put the pieces together:
mythtv-trunk/ contains a directory called "debian/". Move that to our
MythTV source tree:
mv mythtv-trunk/debian mythtv/
You should also move bzr's fairy dust which is located in a hidden
directory:
mv mythtv-trunk/.bzr mythtv/debian/

Yay, now you've got your source tree. What do you with that now?

You can:

* update to the latest and greatest for MythTV (using svn up) and our
packaging magic (using bzr up IIRC)
* actually build the packages:
+ sudo apt-get build-dep mythtv to get all the build dependencies.
Alternately, you can use pbuilder.. feel free to ask if you have
questions about that.
+ dch -v my_new_fancy_version_number ("dch" is in a package called
"devscripts"; it's also a good idea to keep using our versioning scheme.
 see debian/changelog for details)
+ run dpkg-buildpackage -rfakeroot or debuild or $your_favorite_tool to
make some delicious packages.


You said you wanted to add patches, right? You can either modify the
MythTV source directly or use dpatch. I prefer dpatch because it's a
cleaner solution, eg you keep a clean source tree and patches are
applied at build-time. I won't really cover that here, just read "man
dpatch". After putting your patch in debian/patches, make sure to add it
to debian/patches/00list! If patching fails, check debian/patched.


So, that should cover it. The same procedure applies to mythplugins and
myththemes as well. For special credit, you can alse check out "themes"
from svn which basically is Juski's themes - we call those
"mythtv-additional-themes". If you want to automate $things a little
bit, this might be a good starting point:
<https://code.launchpad.net/~mythbuntu/mythbuntu/mythbuntu-weekly-build>
Feel free to bug me about the weekly build script, especially for trunk.
I also have a local script which automatically builds trunk for me using
pbuilder.


BTW, I'm always looking for people who want to help me maintain our
(trunk) packaging magic.

Hope that helps,

Michael