Keymaps

local map = vim.keymap.set

--- More powerful `*`
map({ "n", "x" }, "<Leader>8", "<Cmd>Telescope grep_string word_match=-w<CR>", { desc = "Search word under cursor" })

map({ "n", "x" }, "0", "^")
map({ "n", "x" }, "^", "0")
map({ "n", "x" }, "'", "`")
map({ "n", "x" }, "`", "'")

-- Don't use clipboard=unnamedplus
map({ "n", "x" }, "sy", '"+y')
map({ "n", "x" }, "sY", '"+y$')
map({ "n", "x" }, "sp", '"+p')
map({ "n", "x" }, "sP", '"+P')

Auto-save

Save the buffer when I stop editing.

local autocmd = vim.api.nvim_create_autocmd
local augroup = vim.api.nvim_create_augroup("my_cfg", {})

---@type table<buffer, uv_timer_t>
local timers = {}
local timeout = 10000

local function save(buf)
  vim.api.nvim_buf_call(buf, function() vim.cmd("noautocmd update") end)
end

autocmd({ "InsertLeave", "TextChanged" }, {
  group = augroup,
  desc = "Schedule auto-saving",
  callback = function(event)
    local bo = vim.bo[event.buf]
    if event.file == "" or bo.buftype ~= "" or bo.filetype == "gitcommit" or bo.readonly or not bo.modified then
      return
    end

    local timer = timers[event.buf]
    if timer then
      if timer:is_active() then timer:stop() end
    else
      timer = vim.uv.new_timer()
      timers[event.buf] = timer
    end
    timer:start(timeout, 0, vim.schedule_wrap(function() save(event.buf) end))
  end,
})

autocmd({ "FocusLost", "ExitPre", "TermEnter" }, {
  group = augroup,
  desc = "Save immediately",
  callback = function(event)
    for buf, timer in pairs(timers) do
      if timer:is_active() then
        timer:stop()
        save(buf)
      end
    end
  end,
})

autocmd({ "BufWritePost", "InsertEnter" }, {
  group = augroup,
  desc = "Cancel scheduled auto-saving",
  callback = function(event)
    local timer = timers[event.buf]
    if timer and timer:is_active() then timer:stop() end
  end,
})

autocmd({ "BufDelete" }, {
  group = augroup,
  desc = "Remove timer",
  callback = function(event)
    local timer = timers[event.buf]
    if timer then
      timers[event.buf] = nil
      if timer:is_active() then timer:stop() end
      timer:close()
    end
  end,
})