ccls has hardcoded path compiled in binary, bug in formula?

[mrexodia]

The package ccls has a hardcoded path the the clang resource directory compiled into the binary. When running it shows the following in the log:

20:11:30 initialize.cc:329 I use -resource-dir=/usr/local/Cellar/llvm/13.0.0/lib/clang/13.0.0

But on my system this path is /usr/local/Cellar/llvm/13.0.0_2/lib/clang/13.0.0. I have been in discussions about this (MaskRay/ccls#853 (comment)) and I have some questions:

1. Is this a bug in the brew formula?
2. Is it possible to force a brew formula to always build from source?

[gromgit]

1. Is this a bug in the brew formula?

Hard to say. I've followed up in the upstream thread you linked to, but the issue is essentially that the build process configures itself with clang -print-resource-dir, which returns the path you mentioned, and is guaranteed to change on even a minor revision (that's the _2 in the path). I suggested upstream that the path actually be retrieved at run time, so it's always current, but there may be something about ccls that won't work with that method.

2. Is it possible to force a brew formula to always build from source?

brew reinstall -s ccls, but you'd have to run that on every LLVM upgrade.

[gromgit]

PR Homebrew/homebrew-core#91706 to fix this has been merged. Please brew update, then brew upgrade ccls.