update

nvim/init.lua

@@ -37,6 +37,8 @@ vim.o.cursorline = true
 -- Increase speed for terminals
 vim.o.ttyfast = true
 
+vim.g.nvim_tree_respect_buf_cwd = 1
+
 -- Highlight on yank (copy). It will do a nice highlight blink of the thing you just copied.
 vim.api.nvim_exec(
 	[[
@@ -46,6 +48,26 @@ vim.api.nvim_exec(
 	false
 )
 
+--Set completeopt to have a better completion experience
+-- :help completeopt
+-- menuone: popup even when there's only one match
+-- noinsert: Do not insert text until a selection is made
+-- noselect: Do not select, force to select one from the menu
+-- shortness: avoid showing extra messages when using completion
+-- updatetime: set updatetime for CursorHold
+vim.opt.completeopt = { "menuone", "noselect", "noinsert" }
+vim.opt.shortmess = vim.opt.shortmess + { c = true }
+vim.api.nvim_set_option("updatetime", 300)
+
+-- Fixed column for diagnostics to appear
+-- Show autodiagnostic popup on cursor hover_range
+-- Goto previous / next diagnostic warning / error
+-- Show inlay_hints more frequently
+vim.cmd([[
+set signcolumn=yes
+autocmd CursorHold * lua vim.diagnostic.open_float(nil, { focusable = false })
+]])
+
 -- Enable filetype plugins
 vim.cmd("filetype plugin on")
 

nvim/lua/formatter-config.lua

@@ -22,6 +22,9 @@ local function build()
 			nix = {
 				require("formatter.filetypes.nix").nixfmt,
 			},
+			c = {
+				require("formatter.filetypes.c").clangformat,
+			},
 			["*"] = {
 				require("formatter.filetypes.any").remove_trailing_whitespace,
 			},

nvim/lua/nvim-cmp-config.lua

@@ -7,54 +7,53 @@ end
 local cmp = require("cmp")
 
 cmp.setup({
+	-- Enable LSP snippets
 	snippet = {
-		-- REQUIRED - you must specify a snippet engine
 		expand = function(args)
-			vim.fn["vsnip#anonymous"](args.body) -- For `vsnip` users.
+			vim.fn["vsnip#anonymous"](args.body)
-			-- require('luasnip').lsp_expand(args.body) -- For `luasnip` users.
-			-- require('snippy').expand_snippet(args.body) -- For `snippy` users.
-			-- vim.fn["UltiSnips#Anon"](args.body) -- For `ultisnips` users.
 		end,
 	},
 	window = {
-		-- completion = cmp.config.window.bordered(),
+		completion = cmp.config.window.bordered(),
-		-- documentation = cmp.config.window.bordered(),
+		documentation = cmp.config.window.bordered(),
 	},
-	mapping = cmp.mapping.preset.insert({
+	mapping = {
-		["<C-Space>"] = cmp.mapping.confirm({
+		["<C-p>"] = cmp.mapping.select_prev_item(),
+		["<C-n>"] = cmp.mapping.select_next_item(),
+		-- Add tab support
+		["<S-Tab>"] = cmp.mapping.select_prev_item(),
+		["<Tab>"] = cmp.mapping.select_next_item(),
+		["<C-S-f>"] = cmp.mapping.scroll_docs(-4),
+		["<C-f>"] = cmp.mapping.scroll_docs(4),
+		["<C-Space>"] = cmp.mapping.complete(),
+		["<C-e>"] = cmp.mapping.close(),
+		["<CR>"] = cmp.mapping.confirm({
 			behavior = cmp.ConfirmBehavior.Insert,
 			select = true,
 		}),
-
+	},
-		["<Tab>"] = function(fallback)
+	sources = {
-			if not cmp.select_next_item() then
+		{ name = "path" }, -- file paths
-				if vim.bo.buftype ~= "prompt" and has_words_before() then
+		{ name = "nvim_lsp", keyword_length = 3 }, -- from language server
-					cmp.complete()
+		{ name = "nvim_lsp_signature_help" }, -- display function signatures with current parameter emphasized
-				else
+		{ name = "nvim_lua", keyword_length = 2 }, -- complete neovim's Lua runtime API such vim.lsp.*
-					fallback()
+		{ name = "buffer", keyword_length = 2 }, -- source current buffer
-				end
+		{ name = "vsnip", keyword_length = 2 }, -- nvim-cmp source for vim-vsnip
-			end
+		{ name = "calc" }, -- source for math calculation
+	},
+	formatting = {
+		fields = { "menu", "abbr", "kind" },
+		format = function(entry, item)
+			local menu_icon = {
+				nvim_lsp = "λ",
+				vsnip = "⋗",
+				buffer = "Ω",
+				path = "🖫",
+			}
+			item.menu = menu_icon[entry.source.name]
+			return item
 		end,
-
+	},
-		["<S-Tab>"] = function(fallback)
-			if not cmp.select_prev_item() then
-				if vim.bo.buftype ~= "prompt" and has_words_before() then
-					cmp.complete()
-				else
-					fallback()
-				end
-			end
-		end,
-	}),
-	sources = cmp.config.sources({
-		{ name = "nvim_lsp" },
-		{ name = "vsnip" }, -- For vsnip users.
-		-- { name = 'luasnip' }, -- For luasnip users.
-		-- { name = 'ultisnips' }, -- For ultisnips users.
-		-- { name = 'snippy' }, -- For snippy users.
-	}, {
-		{ name = "buffer" },
-	}),
 })
 
 -- Set configuration for specific filetype.

nvim/lua/nvim-lsp-config.lua

@@ -44,3 +44,7 @@ require("lspconfig")["pyright"].setup({
 })
 
 require("lspconfig").clangd.setup({})
+
+require("lspconfig").rust_analyzer.setup({})
+
+require("lspconfig").nixd.setup({})

nvim/lua/nvim-tree-config.lua

@@ -12,8 +12,19 @@ local function open_nvim_tree(data)
 		return
 	end
 
+	local path = data.file
+
+	if vim.fn.isdirectory(data.file) == 0 then
+		_, _, i = path:find(".*()/.*")
+		path = path:sub(0, i)
+	end
+
 	-- open the tree, find the file but don't focus it
-	require("nvim-tree.api").tree.toggle({ focus = false, find_file = true })
+	require("nvim-tree.api").tree.toggle({
+		focus = false,
+		find_file = true,
+		path = path,
+	})
 end
 
 vim.api.nvim_create_autocmd({ "VimEnter" }, { callback = open_nvim_tree })

nvim/lua/plugins.lua

@@ -27,15 +27,6 @@ require("lazy").setup({
 			},
 		},
 	},
-	{
-		"nvim-tree/nvim-tree.lua",
-		dependencies = {
-			"nvim-tree/nvim-web-devicons", -- optional, for file icons
-		},
-		init = function()
-			require("nvim-tree-config")
-		end,
-	},
 	{
 		"romgrk/barbar.nvim",
 		dependencies = {
@@ -82,7 +73,8 @@ require("lazy").setup({
 			pickers = {
 				find_files = {
 					-- `hidden = true` will still show the inside of `.git/` as it's not `.gitignore`d.
-					find_command = { "rg", "--files", "--hidden", "--no-ignore", "--glob", "!**/.git/*" },
+					-- find_command = { "rg", "--files", "--hidden", "--no-ignore", "--glob", "!**/.git/*" },
+					-- 	find_command = { "fd" },
 				},
 			},
 		},
@@ -98,6 +90,7 @@ require("lazy").setup({
 			"hrsh7th/cmp-cmdline",
 			"hrsh7th/cmp-path",
 			"hrsh7th/cmp-nvim-lua",
+			"hrsh7th/cmp-nvim-lsp-signature-help",
 			"hrsh7th/cmp-vsnip",
 		},
 		init = function()
@@ -128,3 +121,44 @@ autocmd("BufWritePost", {
 	group = "__formatter__",
 	command = ":FormatWrite",
 })
+
+local rt = require("rust-tools")
+
+rt.setup({
+	server = {
+		on_attach = function(_, bufnr)
+			-- Hover actions
+			vim.keymap.set("n", "<C-space>", rt.hover_actions.hover_actions, { buffer = bufnr })
+			-- Code action groups
+			vim.keymap.set("n", "<Leader>a", rt.code_action_group.code_action_group, { buffer = bufnr })
+		end,
+	},
+})
+
+-- LSP Diagnostics Options Setup
+local sign = function(opts)
+	vim.fn.sign_define(opts.name, {
+		texthl = opts.name,
+		text = opts.text,
+		numhl = "",
+	})
+end
+
+vim.diagnostic.config({
+	virtual_text = false,
+	signs = true,
+	update_in_insert = true,
+	underline = true,
+	severity_sort = false,
+	float = {
+		border = "rounded",
+		source = "always",
+		header = "",
+		prefix = "",
+	},
+})
+
+vim.cmd([[
+    set signcolumn=yes
+    autocmd CursorHold * lua vim.diagnostic.open_float(nil, { focusable = false })
+]])