nvim: lsp: Refactor configuration setting for clients

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

@@ -199,58 +199,49 @@ local rust_tool_opts = {
   },
 }
 
-nvim_lsp.clangd.setup {
-  on_init      = on_init,
-  on_attach    = on_attach,
-  capabilities = capabilities,
-  default_config = {
-    cmd       = { "clangd", "--background-index", "--pch-storage=memory", "--clang-tidy", "--suggest-missing-includes", "--header-insertion=never" },
-    filetypes = { 'c', 'cpp' },
-    root_dir = function(fname)
-      -- We specify build/compile_commands.json as that is where the compile_commands.json
-      -- gets generated automatically for meson projects.
-      local root_pattern = util.root_pattern('build/compile_commands.json', 'compile_commands.json', 'compile_flags.txt', '.git')
-      local filename     = util.path.is_absolute(fname) and fname or util.path.join(vim.loop.cwd(), fname)
-      return root_pattern(filename) or util.path.dirname(filename)
-    end,
-  }
-}
+require('rust-tools').setup(rust_tool_opts)
 
-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,
-  init_options = {
-    completion = {
-      resolveEagerly = true,
-    },
-    jediSettings = {
-      caseInsensitiveCompletion = false,
-    },
-    workspace = {
-      symbols = {
-        maxSymbols = 50
+local servers = {
+  clangd = {
+    default_config = {
+      cmd       = { "clangd", "--background-index", "--pch-storage=memory", "--clang-tidy", "--suggest-missing-includes", "--header-insertion=never" },
+      filetypes = { 'c', 'cpp' },
+      root_dir = function(fname)
+        -- We specify build/compile_commands.json as that is where the compile_commands.json
+        -- gets generated automatically for meson projects.
+        local root_pattern = util.root_pattern('build/compile_commands.json', 'compile_commands.json', 'compile_flags.txt', '.git')
+        local filename     = util.path.is_absolute(fname) and fname or util.path.join(vim.loop.cwd(), fname)
+        return root_pattern(filename) or util.path.dirname(filename)
+      end,
+    }
+  },
+  eslint = {},
+  hls = {},
+  jedi_language_server = {
+    init_options = {
+      completion = {
+        resolveEagerly = true,
+      },
+      jediSettings = {
+        caseInsensitiveCompletion = false,
+      },
+      workspace = {
+        symbols = {
+          maxSymbols = 50
+        },
       },
     },
   },
+  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