feat(neovim): add recommended settings from dmtrKovalenko/dotfiles

home-manager/programs/neovim/lua/autocmds.lua

@@ -1,13 +1,113 @@
 local augroup = vim.api.nvim_create_augroup
 local autocmd = vim.api.nvim_create_autocmd
+local utils = require("utils")
 
--- Highlight on yank
+-- ====================================================================================
+-- HIGHLIGHT ON YANK WITH REGISTER ROTATION
+-- From: https://github.com/dmtrKovalenko/dotfiles
+-- ====================================================================================
 local highlight_yank_group = augroup("HighlightYank", { clear = true })
 autocmd("TextYankPost", {
 	group = highlight_yank_group,
 	pattern = "*",
 	callback = function()
 		vim.highlight.on_yank()
+		-- Rotate registers on yank to preserve yank history
+		if vim.v.event.operator == "y" then
+			utils.yank_shift()
+		end
+	end,
+})
+
+-- ====================================================================================
+-- AUTO-SAVE ON BUFFER LEAVE / FOCUS LOSS
+-- From: https://github.com/dmtrKovalenko/dotfiles
+-- ====================================================================================
+local autosave_group = augroup("AutoSave", { clear = true })
+autocmd({ "BufLeave", "FocusLost" }, {
+	group = autosave_group,
+	pattern = "*",
+	callback = function()
+		-- Only save if buffer is modified and has a filename
+		if vim.bo.modified and vim.fn.expand("%") ~= "" and vim.bo.buftype == "" then
+			vim.cmd("silent! update")
+		end
+	end,
+})
+
+-- ====================================================================================
+-- CUSTOM TERMINAL TITLE WITH FILE ICONS
+-- From: https://github.com/dmtrKovalenko/dotfiles
+-- ====================================================================================
+local title_group = augroup("TerminalTitle", { clear = true })
+autocmd({ "BufEnter", "BufFilePost" }, {
+	group = title_group,
+	pattern = "*",
+	callback = function()
+		local filename = vim.fn.expand("%:t")
+		local dir = vim.fn.fnamemodify(vim.fn.getcwd(), ":t")
+		local icon = utils.get_file_icon(filename)
+		if filename ~= "" then
+			vim.opt.titlestring = icon .. " " .. filename .. " - " .. dir
+		else
+			vim.opt.titlestring = dir
+		end
+	end,
+})
+vim.opt.title = true
+
+-- ====================================================================================
+-- FILETYPE-SPECIFIC KEYWORD EXTENSIONS
+-- From: https://github.com/dmtrKovalenko/dotfiles
+-- ====================================================================================
+local keyword_group = augroup("KeywordExtensions", { clear = true })
+autocmd("FileType", {
+	group = keyword_group,
+	pattern = { "typescript", "typescriptreact", "javascript", "javascriptreact" },
+	callback = function()
+		-- Add @ and - to keyword characters for better word navigation
+		vim.opt_local.iskeyword:append("@-@")
+		vim.opt_local.iskeyword:append("-")
+	end,
+})
+autocmd("FileType", {
+	group = keyword_group,
+	pattern = { "css", "scss", "sass", "less" },
+	callback = function()
+		vim.opt_local.iskeyword:append("-")
+		vim.opt_local.iskeyword:append("#")
+	end,
+})
+autocmd("FileType", {
+	group = keyword_group,
+	pattern = { "html", "xml", "vue", "svelte" },
+	callback = function()
+		vim.opt_local.iskeyword:append("-")
+		vim.opt_local.iskeyword:append(":")
+	end,
+})
+autocmd("FileType", {
+	group = keyword_group,
+	pattern = { "json", "jsonc" },
+	callback = function()
+		vim.opt_local.iskeyword:append("-")
+		vim.opt_local.iskeyword:append("$")
+	end,
+})
+autocmd("FileType", {
+	group = keyword_group,
+	pattern = { "yaml", "toml" },
+	callback = function()
+		vim.opt_local.iskeyword:append("-")
+		vim.opt_local.iskeyword:append(".")
+	end,
+})
+autocmd("FileType", {
+	group = keyword_group,
+	pattern = "markdown",
+	callback = function()
+		vim.opt_local.iskeyword:append("-")
+		vim.opt_local.iskeyword:append("#")
 	end,
 })
 

home-manager/programs/neovim/lua/keymaps.lua

@@ -110,6 +110,18 @@ keymap("n", "<leader>py", ':let @" = expand("%:p")<CR>', opts)
 -- @keymap <leader>d: Delete to blackhole register
 keymap({ "n", "v" }, "<leader>d", '"_d', opts)
 
+-- @keymap dd: Smart delete (uses blackhole register for empty lines)
+-- From: https://github.com/dmtrKovalenko/dotfiles
+keymap("n", "dd", function()
+	return utils.smart_delete("dd")
+end, { noremap = true, expr = true })
+
+-- @keymap <Esc>: Close floating windows
+keymap("n", "<Esc>", function()
+	utils.close_floating_wins()
+	vim.cmd("nohlsearch")
+end, opts)
+
 -- ====================================================================================
 -- GIT OPERATIONS
 -- ====================================================================================

home-manager/programs/neovim/lua/settings.lua

@@ -6,6 +6,30 @@ vim.opt.termsync = true
 vim.opt.hidden = true
 vim.opt.updatetime = 300
 vim.opt.mouse = "a"
+
+-- ====================================================================================
+-- SSH / OSC52 CLIPBOARD HANDLING
+-- From: https://github.com/dmtrKovalenko/dotfiles
+-- Uses OSC 52 protocol for clipboard when running over SSH
+-- ====================================================================================
+local function is_ssh()
+	return os.getenv("SSH_CLIENT") ~= nil or os.getenv("SSH_TTY") ~= nil
+end
+
+if is_ssh() then
+	-- Use OSC 52 for clipboard when in SSH session
+	vim.g.clipboard = {
+		name = "OSC 52",
+		copy = {
+			["+"] = require("vim.ui.clipboard.osc52").copy("+"),
+			["*"] = require("vim.ui.clipboard.osc52").copy("*"),
+		},
+		paste = {
+			["+"] = require("vim.ui.clipboard.osc52").paste("+"),
+			["*"] = require("vim.ui.clipboard.osc52").paste("*"),
+		},
+	}
+end
 vim.opt.inccommand = "nosplit"
 vim.opt.splitbelow = true
 vim.opt.splitright = true
@@ -44,6 +68,38 @@ vim.opt.cursorline = true
 vim.opt.grepprg = "rg --vimgrep --smart-case --follow"
 -- Background will be set automatically based on system theme
 vim.opt.termguicolors = true
+
+-- ====================================================================================
+-- VISIBLE WHITESPACE
+-- From: https://github.com/dmtrKovalenko/dotfiles
+-- ====================================================================================
+vim.opt.list = true
+vim.opt.listchars = {
+	tab = "→ ",
+	trail = "·",
+	extends = "»",
+	precedes = "«",
+	nbsp = "␣",
+}
+
+-- ====================================================================================
+-- DIAGNOSTIC DISPLAY SETTINGS
+-- From: https://github.com/dmtrKovalenko/dotfiles
+-- ====================================================================================
+vim.diagnostic.config({
+	virtual_text = {
+		prefix = "●",
+		spacing = 2,
+	},
+	signs = true,
+	underline = true,
+	update_in_insert = false,
+	severity_sort = true,
+	float = {
+		border = "rounded",
+		source = true,
+	},
+})
 vim.opt.shortmess:append("c")
 vim.opt.timeoutlen = 300
 vim.opt.winborder = "none"

home-manager/programs/neovim/lua/utils.lua

@@ -1,5 +1,77 @@
 local M = {}
 
+-- ====================================================================================
+-- SMART DELETE FUNCTION
+-- Avoids polluting registers with whitespace-only lines
+-- From: https://github.com/dmtrKovalenko/dotfiles
+-- ====================================================================================
+function M.smart_delete(key)
+	local line = vim.api.nvim_get_current_line()
+	-- If the line is empty or contains only whitespace, delete to blackhole register
+	if line:match("^%s*$") then
+		return '"_' .. key
+	end
+	return key
+end
+
+-- ====================================================================================
+-- YANK REGISTER ROTATION
+-- Rotates registers 1-9 when yanking to preserve yank history
+-- From: https://github.com/dmtrKovalenko/dotfiles
+-- ====================================================================================
+function M.yank_shift()
+	-- Rotate registers 9 <- 8 <- ... <- 2 <- 1 <- "
+	for i = 9, 2, -1 do
+		local prev_content = vim.fn.getreg(tostring(i - 1))
+		local prev_type = vim.fn.getregtype(tostring(i - 1))
+		vim.fn.setreg(tostring(i), prev_content, prev_type)
+	end
+	-- Move unnamed register to register 1
+	local unnamed_content = vim.fn.getreg('"')
+	local unnamed_type = vim.fn.getregtype('"')
+	vim.fn.setreg("1", unnamed_content, unnamed_type)
+end
+
+-- ====================================================================================
+-- CLOSE FLOATING WINDOWS
+-- Utility to close all floating windows
+-- From: https://github.com/dmtrKovalenko/dotfiles
+-- ====================================================================================
+function M.close_floating_wins()
+	for _, win in ipairs(vim.api.nvim_list_wins()) do
+		if vim.api.nvim_win_is_valid(win) then
+			local config = vim.api.nvim_win_get_config(win)
+			if config.relative ~= "" then
+				vim.api.nvim_win_close(win, false)
+			end
+		end
+	end
+end
+
+-- ====================================================================================
+-- SSH DETECTION
+-- Detect if running in SSH session for clipboard handling
+-- ====================================================================================
+function M.is_ssh()
+	return os.getenv("SSH_CLIENT") ~= nil or os.getenv("SSH_TTY") ~= nil
+end
+
+-- ====================================================================================
+-- FILE ICON RETRIEVAL
+-- Get file icon using nvim-web-devicons if available
+-- ====================================================================================
+function M.get_file_icon(filename)
+	local ok, devicons = pcall(require, "nvim-web-devicons")
+	if ok then
+		local icon, _ = devicons.get_icon(filename, vim.fn.fnamemodify(filename, ":e"), { default = true })
+		return icon or ""
+	end
+	return ""
+end
+
+-- ====================================================================================
+-- BUFFER CYCLING
+-- ====================================================================================
 function M.cycle_buffer(direction)
 	local current_buf = vim.api.nvim_get_current_buf()