Initial nvim config.

.config/nvim/lua/lsp.lua

@@ -0,0 +1,107 @@
+-- require("utils").load_servers{ 
+--     require("configs.lsp.pylsp"),
+--     require("configs.lsp.clangd"),
+--     require("configs.lsp.bash"),
+-- }
+--
+local lspconfig = require("lspconfig")
+
+local custom_attach = function(client, bufnr)
+  -- Mappings.
+  local map = function(mode, l, r, opts)
+    opts = opts or {}
+    opts.silent = true
+    opts.buffer = bufnr
+    keymap.set(mode, l, r, opts)
+  end
+
+  map("n", "gd", vim.lsp.buf.definition, { desc = "go to definition" })
+  map("n", "<C-]>", vim.lsp.buf.definition)
+  map("n", "K", vim.lsp.buf.hover)
+  map("n", "<C-k>", vim.lsp.buf.signature_help)
+  map("n", "<space>rn", vim.lsp.buf.rename, { desc = "varialbe rename" })
+  map("n", "gr", vim.lsp.buf.references, { desc = "show references" })
+  map("n", "[d", diagnostic.goto_prev, { desc = "previous diagnostic" })
+  map("n", "]d", diagnostic.goto_next, { desc = "next diagnostic" })
+  -- this puts diagnostics from opened files to quickfix
+  map("n", "<space>qw", diagnostic.setqflist, { desc = "put window diagnostics to qf" })
+  -- this puts diagnostics from current buffer to quickfix
+  map("n", "<space>qb", function() set_qflist(bufnr) end, { desc = "put buffer diagnostics to qf" })
+  map("n", "<space>ca", vim.lsp.buf.code_action, { desc = "LSP code action" })
+  map("n", "<space>wa", vim.lsp.buf.add_workspace_folder, { desc = "add workspace folder" })
+  map("n", "<space>wr", vim.lsp.buf.remove_workspace_folder, { desc = "remove workspace folder" })
+  map("n", "<space>wl", function()
+    inspect(vim.lsp.buf.list_workspace_folders())
+  end, { desc = "list workspace folder" })
+
+  -- Set some key bindings conditional on server capabilities
+  if client.server_capabilities.documentFormattingProvider then
+    map("n", "<space>f", vim.lsp.buf.format, { desc = "format code" })
+  end
+
+  api.nvim_create_autocmd("CursorHold", {
+    buffer = bufnr,
+    callback = function()
+      local float_opts = {
+        focusable = false,
+        close_events = { "BufLeave", "CursorMoved", "InsertEnter", "FocusLost" },
+        border = "rounded",
+        source = "always", -- show source in diagnostic popup window
+        prefix = " ",
+      }
+
+      if not vim.b.diagnostics_pos then
+        vim.b.diagnostics_pos = { nil, nil }
+      end
+
+      local cursor_pos = api.nvim_win_get_cursor(0)
+      if (cursor_pos[1] ~= vim.b.diagnostics_pos[1] or cursor_pos[2] ~= vim.b.diagnostics_pos[2])
+          and #diagnostic.get() > 0
+      then
+        diagnostic.open_float(nil, float_opts)
+      end
+
+      vim.b.diagnostics_pos = cursor_pos
+    end,
+  })
+
+  -- The blow command will highlight the current variable and its usages in the buffer.
+  if client.server_capabilities.documentHighlightProvider then
+    vim.cmd([[
+      hi! link LspReferenceRead Visual
+      hi! link LspReferenceText Visual
+      hi! link LspReferenceWrite Visual
+    ]])
+
+    local gid = api.nvim_create_augroup("lsp_document_highlight", { clear = true })
+    api.nvim_create_autocmd("CursorHold" , {
+      group = gid,
+      buffer = bufnr,
+      callback = function ()
+        lsp.buf.document_highlight()
+      end
+    })
+
+    api.nvim_create_autocmd("CursorMoved" , {
+      group = gid,
+      buffer = bufnr,
+      callback = function ()
+        lsp.buf.clear_references()
+      end
+    })
+  end
+
+  if vim.g.logging_level == "debug" then
+    local msg = string.format("Language server %s started!", client.name)
+    vim.notify(msg, vim.log.levels.DEBUG, { title = "Nvim-config" })
+  end
+end
+
+
+lspconfig.clangd.setup {
+    on_attach = custom_attach,
+    filetypes = { "c", "cpp", "cc" },
+    flags = {
+      debounce_text_changes = 500,
+    },
+}