Recently after performing an upgrade, and hence having to redo some of the manual configuration changes I'd performed, e.g. to configs in /etc or /usr/share, I decided I'd be more strict with myself this time and put all changes I make to my system into packages, so on the next upgrade I can just install my packages and have everything ready to go.
My first package is for my custom keymap. Following this post: create a .deb Package from scripts or binaries I have created a folder for the package and have my keymap listed in the debian/install file, to be installed in /usr/share/X11/xkb/symbols. I'm also going to need to add the symbols to /usr/share/X11/xkb/evdev.xml for them to be recognised, and thought that it would be better to use patch for this rather than overwriting the file.
To reiterate, I want to use patch as the installation method for my alterations to evdev.xml, not to patch package source code using quilt (which is what I've found through Internet searching)
So I have my keymap in the install file, and a patch command in the postinst file. My problem is that I don't know how to include the patch files into the package; after running debuild, the script and keymap are in the deb file, but the diffs aren't, so the postinst script won't be able to run.
Is there a way I can get my patches (or better, a folder called Patches) into the package, for use during the installatoin? If possible, I don't want to install these patches anywhere as they're only necessary during the installation process.