dotfiles-public/private_dot_config/nvim/lua/config/options.lua

-- Options are automatically loaded before lazy.nvim startup
-- Default options that are always set: https://github.com/LazyVim/LazyVim/blob/main/lua/lazyvim/config/options.lua
-- Add any additional options here

-- Clipboard provider. LazyVim disables `clipboard=unnamedplus` under SSH, so
-- select the right provider and explicitly re-enable clipboard-linked yanks:
--   * tmux        -> tmux's own clipboard buffer (readable)
--   * SSH/remote  -> OSC 52 copy-only (see note below)
--   * local macOS -> native pbcopy/pbpaste.
-- Do NOT use OSC 52 locally: yanky's `sync_with_ring` reads the system
-- clipboard, and OSC 52 reads depend on the terminal answering a query, which
-- Ghostty refuses by default -> OSC 52 error + yanky stack trace. Neovim 0.12
-- also auto-prefers OSC 52 over pbcopy, so the macOS provider must be explicit.
if vim.env.TMUX then
  vim.g.clipboard = "tmux"
elseif vim.env.SSH_CONNECTION then
  -- Remote session (bare SSH, or a multiplexer like herdr that exports no env
  -- var of its own). Copy via OSC 52 so yanks reach the OUTER terminal's
  -- clipboard, but NEVER read the clipboard back: OSC 52 reads require the
  -- terminal to answer a query, which Warp/herdr don't, so a read returns stale
  -- data (or hangs) and blows up yanky's ring sync. Trade-off: pasting FROM the
  -- local host INTO nvim over SSH won't work here -- use the terminal's own
  -- paste in insert mode.
  --
  -- The paste function below must NOT call vim.fn.getreg('"')/'*'/'+' itself:
  -- Neovim's clipboard provider (autoload/provider/clipboard.vim) guards
  -- against re-entrant provider calls (`s:here`, see nvim#7184), so a getreg()
  -- of a clipboard-linked register issued from *inside* a registered paste()
  -- callback is swallowed and silently returns empty -- not the register's
  -- real content. Cache what copy() was last given instead, and have paste()
  -- return that cached value directly.
  local osc52 = require("vim.ui.clipboard.osc52")
  local last = { lines = {}, regtype = "" }
  local function make_copy(reg)
    local osc52_copy = osc52.copy(reg)
    return function(lines, regtype)
      last.lines, last.regtype = lines, regtype
      osc52_copy(lines, regtype)
    end
  end
  local function paste_from_cache()
    return { last.lines, last.regtype }
  end
  vim.g.clipboard = {
    name = "osc52-copyonly",
    copy = { ["+"] = make_copy("+"), ["*"] = make_copy("*") },
    paste = { ["+"] = paste_from_cache, ["*"] = paste_from_cache },
    cache_enabled = 0,
  }
elseif vim.fn.has("mac") == 1 then
  vim.g.clipboard = {
    name = "pbcopy",
    copy = { ["+"] = "pbcopy", ["*"] = "pbcopy" },
    paste = { ["+"] = "pbpaste", ["*"] = "pbpaste" },
    cache_enabled = 0,
  }
end

-- Make ordinary y/Y use the selected provider. LazyVim applies its SSH default
-- after this file is read, so restore the option once startup has settled. The
-- schedule keeps this callback after LazyVim's own VeryLazy clipboard callback.
vim.api.nvim_create_autocmd("User", {
  pattern = "VeryLazy",
  once = true,
  callback = function()
    vim.schedule(function()
      vim.opt.clipboard = "unnamedplus"
    end)
  end,
})

-- VS Code-like visual improvements
vim.opt.cursorline = true           -- Highlight current line
-- vim.opt.colorcolumn = "80,120"   -- Disabled: renders poorly with some themes
vim.opt.scrolloff = 8               -- Keep 8 lines visible above/below cursor
vim.opt.sidescrolloff = 8           -- Keep 8 columns visible left/right
vim.opt.smoothscroll = true         -- Smooth scrolling

-- Make Shift+movement and mouse selections behave like a conventional editor.
-- Keep `cmd` out of selectmode so v/V continue to enter Vim's Visual mode.
vim.opt.keymodel = { "startsel", "stopsel" }
vim.opt.selectmode = { "key", "mouse" }