nvim: lsp: Refactor configuration setting for clients

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

@@ -199,10 +199,10 @@ local rust_tool_opts = {
   },
 }
 
-nvim_lsp.clangd.setup {
-  on_init      = on_init,
-  on_attach    = on_attach,
-  capabilities = capabilities,
+require('rust-tools').setup(rust_tool_opts)
+
+local servers = {
+  clangd = {
     default_config = {
       cmd       = { "clangd", "--background-index", "--pch-storage=memory", "--clang-tidy", "--suggest-missing-includes", "--header-insertion=never" },
       filetypes = { 'c', 'cpp' },
@@ -214,18 +214,10 @@ nvim_lsp.clangd.setup {
         return root_pattern(filename) or util.path.dirname(filename)
       end,
     }
-}
-
-nvim_lsp.hls.setup {
-  on_init      = on_init,
-  on_attach    = on_attach,
-  capabilities = capabilities
-}
-
-nvim_lsp.jedi_language_server.setup {
-  on_init      = on_init,
-  on_attach    = on_attach,
-  capabilities = capabilities,
+  },
+  eslint = {},
+  hls = {},
+  jedi_language_server = {
     init_options = {
       completion = {
         resolveEagerly = true,
@@ -239,18 +231,17 @@ nvim_lsp.jedi_language_server.setup {
         },
       },
     },
+  },
+  tsserver = {},
 }
 
-require('rust-tools').setup(rust_tool_opts)
-
-nvim_lsp.tsserver.setup {
-  on_init      = on_init,
-  on_attach    = on_attach,
-  capabilities = capabilities,
-}
-
-nvim_lsp.eslint.setup {
-  on_init      = on_init,
-  on_attach    = on_attach,
-  capabilities = capabilities
-}
+for client, config in pairs(servers) do
+  config.on_init      = on_init
+  config.on_attach    = on_attach
+  config.capabilities = vim.tbl_deep_extend(
+    'keep',
+    config.capabilities or {},
+    capabilities
+  )
+  nvim_lsp[client].setup(config)
+end