At the moment the function does not handle all cases correctly.
For example, it cannot say which package was changed when a file
in a subdirectory of a package was changed.
This is used e.g. in device-samsung-golden:
device-samsung-golden
├── APKBUILD
├── deviceinfo
├── downstream
│ ├── init-usb-hook.sh
│ ├── module-config.conf
│ └── modules-load.conf
└── kwin.sh
At the moment, changing a file under "downstream" would attempt
building a "downstream" package, instead of device-samsung-golden.
Refactor the function a bit to walk up the directory hierarchy,
until we find an APKBUILD.
Minecrell
0ffb448de4