gitignore: ignore clangd files and directories

In order to use clangd it is currently necessary to add some
configuration into a .clangd file. Unfortunately, this is very situation
specific and cannot meaningfully be upstreamed. (For example, I need to
manually specify "-std=c++17" to work around the issue that gcc defaults
to c++17 and clang defaults to c++14.)

While at it also ignore the .cache directory where clangd stores its
index.

diff --git a/.gitignore b/.gitignore
index d3c5630028dbf6466f09e83a866c72e9227f42e5..a769646b98816d25f522723c8d14a68fe4ed2583 100644 (file)
--- a/.gitignore
+++ b/.gitignore
@@ -12,6 +12,10 @@ qtcreator/
 # qt creator
 CMakeLists.txt.user
 
+# clangd
+/.cache
+/.clangd
+
 # misc
 /compile_commands.json
 /.clang_complete