An example of how to create a C++ compilation database is needed

[vadimcn]

Description of the problem / feature request:

Please provide a definitive example of how to create a compilation database for a Bazel-based C++ project.

Feature requests: what underlying problem are you trying to solve with this feature?

There are numerous IDEs that rely on clang language server (which requires compilation database for precise source indexing) to implement code browsing / code completion features for C++.

[keith]

https://github.com/grailbio/bazel-compilation-database/ can provide this

[vadimcn]

https://github.com/grailbio/bazel-compilation-database/ can provide this

That repo is no longer supported, the tool cannot deal with the --config=... switch and... well, did not work on the repo I have on hand. I've spent a few hours trying to figure out what's wrong with it, but couldn't.
Edit: Tried it on a smaller repo. It worked, but took a veeery long time. Looks like it actually builds the entire repo?

Would be nice to hear from Bazel devs about how this sort of tool is supposed to work.