nvim/lua/config/options.lua

vim.cmd('filetype plugin indent on')
vim.cmd('language en_US.utf-8')

local opt = vim.opt
local indent = 2
opt.termguicolors = true -- Enable colors in terminal
opt.hlsearch = true --Set highlight on search
opt.number = true --Make line numbers default
opt.listchars:append('eol:↴')
-- opt.listchars:append("space: ")
-- opt.listchars:append 'space:⋅'
opt.listchars:append('trail: ')
opt.listchars:append('tab:→ ')
opt.relativenumber = false --Make relative number default
opt.mouse = 'a' --Enable mouse mode
opt.breakindent = true --Enable break indent
opt.undofile = true --Save undo history
opt.ignorecase = true --Case insensitive searching unless /C or capital in search
opt.smartcase = true -- Smart case
opt.updatetime = 300 --Decrease update time
opt.signcolumn = 'yes' -- Always show sign column
opt.timeoutlen = 300 --	Time in milliseconds to wait for a mapped sequence to complete.
opt.ttimeoutlen = 10
opt.showmode = false -- Do not need to show the mode. We use the statusline instead.
opt.scrolloff = 999 -- Lines of context
opt.joinspaces = false -- No double spaces with join after a dot
opt.showmatch = true -- Show matching braces
opt.wrap = true -- When on, lines longer than the width of the window will wrap and displaying continues on the next line
opt.list = true
opt.hidden = true
opt.winborder = 'none'
opt.scrolloff = 4
opt.shiftround = true
opt.relativenumber = false
opt.splitbelow = true
opt.splitright = true
opt.wildmode = 'longest:full,full'
opt.pumheight = 15
opt.splitbelow = true
opt.splitright = true
opt.shiftwidth = indent
opt.tabstop = indent
if vim.fn.has('wsl') == 1 then
  vim.g.clipboard = {
    name = 'WslClipboard',
    copy = {
      ['+'] = 'clip.exe',
      ['*'] = 'clip.exe',
    },
    paste = {
      ['+'] = 'powershell.exe -c [Console]::Out.Write($(Get-Clipboard -Raw).tostring().replace("`r", ""))',
      ['*'] = 'powershell.exe -c [Console]::Out.Write($(Get-Clipboard -Raw).tostring().replace("`r", ""))',
    },
    cache_enabled = 0,
  }
  -- opt.guifont = 'Hack Nerd Font Mono:h10'
  opt.guifont = 'RobotoMono Nerd Font:h10'
elseif vim.loop.os_uname().sysname == 'Linux' then
  opt.guifont = 'Iosevka NFM:h11'
  if vim.env.SSH_TTY or vim.env.SSH_CLIENT or vim.env.SSH_CONNECTION then
    function no_paste(reg)
      return function(lines)
        -- Do nothing! We can't paste with OSC52
      end
    end

    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('*'),
        ['+'] = no_paste('+'), -- Pasting disabled
        ['*'] = no_paste('*'), -- Pasting disabled
      },
    }
  end
else
  -- opt.guifont = 'Hack Nerd Font:h10'
  -- opt.guifont = 'JetBrainsMono Nerd Font:h10'
  -- opt.guifont = 'FiraCode Nerd Font:h10'
  -- opt.guifont = 'RobotoMono Nerd Font:h10'
  opt.guifont = 'IosevkaTerm Nerd Font Mono:h11'
  -- opt.guifont = 'Cousine Nerd Font Mono:h10'
  -- opt.guifont = 'DroidSansM Nerd Font Propo:h10'
  -- opt.guifont = 'AnonymicePro Nerd Font:h11'
  -- opt.guifont = 'SauceCodePro Nerd Font:h10'
  -- opt.guifont = 'Monoid Nerd Font Propo:h10'
end
opt.swapfile = false
opt.backup = false
opt.spelllang = 'en'
opt.completeopt = 'menu,menuone,noselect'
opt.expandtab = true
opt.smartindent = true
opt.title = true
opt.titlestring = '%(%{fnamemodify(getcwd(),":t")}%) Neovim'
opt.laststatus = 3 -- for lualine
opt.background = 'dark'

-- go to previous/next line with h,l,left arrow and right arrow
-- when cursor reaches end/beginning of line
-- opt.whichwrap:append('<>[]hl')

-- disable nvim intro
opt.shortmess:append('sI')

-- Treesitter based folding
opt.foldlevel = 20
opt.foldmethod = 'expr'
opt.foldexpr = 'nvim_treesitter#foldexpr()'
opt.foldexpr = 'nvim_treesitter#foldexpr()'

vim.diagnostic.config({
  signs = {
    text = {
      [vim.diagnostic.severity.ERROR] = '', -- Nerd Font Error Icon
      [vim.diagnostic.severity.WARN] = '', -- Nerd Font Warning Icon
      [vim.diagnostic.severity.INFO] = '', -- Nerd Font Info Icon
      [vim.diagnostic.severity.HINT] = '', -- Nerd Font Hint Icon (example)
    },
    -- Define the highlight group to use for the sign text for each severity
    texthl = {
      [vim.diagnostic.severity.ERROR] = 'DiagnosticSignError',
      [vim.diagnostic.severity.WARN] = 'DiagnosticSignWarn',
      [vim.diagnostic.severity.INFO] = 'DiagnosticSignInfo',
      [vim.diagnostic.severity.HINT] = 'DiagnosticSignHint',
    },
    -- Optional: Highlight the line number column
    numhl = {
      [vim.diagnostic.severity.ERROR] = 'DiagnosticLineNrError',
      -- Add others for WARN, INFO, HINT if desired
    },
    -- Optional: Highlight the whole line
    linehl = {
      -- Define highlight groups like 'DiagnosticLineError', 'DiagnosticLineWarn', etc.
      [vim.diagnostic.severity.ERROR] = 'DiagnosticLineError',
    },
  },
  -- Other diagnostic configurations (optional examples)
  virtual_text = false,
  virtual_lines = false,
  underline = true, -- Enable underlining diagnostics
  update_in_insert = false, -- Don't update diagnostics in insert mode
  severity_sort = true, -- Sort diagnostics by severity
})