[all-commits] [llvm/llvm-project] 109bc0: [clangd] Add --query-driver flag to clangd-indexer

[Nathan Ridge via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 109bc024c8d741e57fa6bb5a028d8a4ed4e64a61
      https://github.com/llvm/llvm-project/commit/109bc024c8d741e57fa6bb5a028d8a4ed4e64a61
  Author: Nathan Ridge <zeratul976 at hotmail.com>
  Date:   2023-08-24 (Thu, 24 Aug 2023)

  Changed paths:
    M clang-tools-extra/clangd/indexer/IndexerMain.cpp

  Log Message:
  -----------
  [clangd] Add --query-driver flag to clangd-indexer

When using `clangd` for cross-compiled projects, it's necessary to use the `--query-driver` flag so that `clangd` can extract the compiler's built-in header paths. However, there's no such flag for `clangd-indexer` so we're unable to build a working static index for these projects.

This patch adds a `--query-driver` flag to `clangd-indexer` for this scenario.

I saw some tests under `clang-tools-extra/clangd/test/` but I think the cross-compilation case is a bit more complex to test. Let me know if you'd like me to look into this further.

Resolves: https://github.com/clangd/clangd/issues/1717

Reviewed By: nridge

Differential Revision: https://reviews.llvm.org/D157990