before this change, we assume that debian packaging directory is
always located under `build/debian/debian`. which is hardwired by
`configure.py`. but this could might hold anymore, if we want to
have a self-contained build, in the sense that different builds do
not share the same build directory. this could be a waste for the
non-mult-config build, but `configure.py` uses mult-config generator
when building with CMake. so in that case, all builds still share the
same $build_dir/debian/ directory.
in order to work with the out-of-source build, where the build
directory is not necessarily "build", a new option is added to
`create-relocatable-package.py`, this allows us to specify the directory
where "debian" artifacts are located.
Refs #15241
Signed-off-by: Kefu Chai <kefu.chai@scylladb.com>
Closesscylladb/scylladb#17558
d93b018bcf