Modules listed three times for LLVM documentation

[Kakadu]

I did odig doc llvm for LLVM bindings 16x and 17.x and toplevel modules a listed three times with the same content.
I don't know if this is an issue of LLVM package or odoc itself? Could somebody double-check?

[dbuenzli]

It's likely more an odig issue so I'm moving the issue there.

But can you be more specific? In general when this happens it's because you have library variants or something like that. Perhaps the simplest is not to rely on odig's automatically generated file and add your own index.mld landing page.

See the docs here for the details.

[dbuenzli]

Mmmh it seems I can't transfer stuff to another organisation.

[dbuenzli]

So I tried to install llvm and I confirm your finding. The problem is the following. Do a:

odig pkg llvm -l

And have a look at the doc-cobjs fields which lists the file that are used for generating the documentation according to the convention. You will see that most modules appear three times. For example:

> odig pkg llvm -l | grep 'llvm.cmti\?'
   /Users/dbuenzli/.opam/4.14.2/lib/llvm/static/llvm.cmt
   /Users/dbuenzli/.opam/4.14.2/lib/llvm/shared/llvm.cmt
   /Users/dbuenzli/.opam/4.14.2/lib/llvm/llvm.cmti

Since the index.mld file is automatically generated by odig, the index gets three Llvm mentions.

I'm not sure I exactly understand the install structure here or how it can be made automatically understandable to odig. So the best is likely to write our own index.mld file and install it as per convention in $(opam var doc)/llvm/odoc-pages.

(I could uniquify the modules but I suspect the whole install structure leads to larger problems for odig, if I look at odig doc llvm && odig log -m llmv the driver seems to drive odoc in a way that confuses it, see these Ambiguous lookup)

Feel free to reopen an issue on odig if you think there's something better that can be automatically done there.