Test the wasm version of libzim/kiwix-lib with split ZIM files

[mossroy]

This is a follow-up of #116.

I see no technical reason why it would not work, but it needs to be tested.

[mossroy]

I've implemented what I felt was necessary for that : passing all the files to the wasm, and call the libzim with the baseName (.zim instead of .zimaa). But every call to the libzim still fails with an "Uncaught" error in the browser console

[mossroy]

It's still the case. I would probably need help from @mgautierfr to investigate with me. There must be something wrong in how we do that

[Jaifroid]

I believe libzim no longer supports split ZIM archives (*.zimaa, *.zimab, etc.). @mgautierfr or @kelson42, can you confirm that the code supporting this was removed?

[kelson42]

libzim supports splitted zim files but they can not anymore be splitted randomly. See zim-split tool.

[mgautierfr]

libzim still support randomly split zim files. Other "tools" (as xapian or video player to which we would like to pass a fd and a offset/range where to read do not support split files at all) zim-split tool splits zim files at position where we avoid to cut internal content. This way we are sure that xapian and other tools will works. (And we earn a bit of performance as we can mmap the memory range in libzim if the range is not in two files)

[Jaifroid]

OK, thank you for responses. I'll keep this issue open in that case.