nvim: add clangd specific lsp plugin

.config/nvim/lua/my/lsp.lua

@@ -97,6 +97,24 @@ if vim.fn.executable('clangd') > 0 then
     }
 end
 
+require("clangd_extensions").setup({
+    server = {
+        cmd = {
+            'clangd',
+            '--compile-commands-dir=build',
+            '--clang-tidy', -- needs >=clangd-9
+            '--ranking-model=decision_forest' -- needs >=clangd-12
+        },
+        on_attach = on_attach,
+        capabilities = capabilities
+    },
+    extensions = {
+        inlay_hints = {
+            show_parameter_hints = false
+        }
+    }
+})
+
 if vim.fn.executable('lua-language-server') > 0 then
     lspconfig.sumneko_lua.setup({
         settings = {

.config/nvim/lua/my/plugins.lua

@@ -64,6 +64,7 @@ require('packer').startup(function(use)
         tag = '*'
     }
     use { 'https://github.com/ray-x/lsp_signature.nvim' }
+    use { 'https://github.com/p00f/clangd_extensions.nvim' }
 
     -- tools
     use {