dotfiles/modules/neovim/lua/settings.lua

-- ===========================================================================
-- Settings
-- ===========================================================================

vim.o.termguicolors = true --- Set to truecolor
vim.o.hidden = true --- Don't unload buffers when leaving them
vim.wo.number = true --- Show line numbers
vim.wo.relativenumber = true --- Relative numbers instead of absolute
vim.o.list = true --- Reveal whitespace with dashes
vim.o.expandtab = true --- Tabs into spaces
vim.o.shiftwidth = 4 --- Amount to shift with > key
vim.o.softtabstop = 4 --- Amount to shift with <TAB> key
vim.o.ignorecase = true --- Ignore case when searching
vim.o.smartcase = true --- Check case when using capitals in search
vim.o.infercase = true --- Don't match cases when completing suggestions
vim.o.incsearch = true --- Search while typing
vim.o.visualbell = true --- No sounds
vim.o.scrolljump = 1 --- Number of lines to scroll
vim.o.scrolloff = 3 --- Margin of lines to see while scrolling
vim.o.splitright = true --- Vertical splits on the right side
vim.o.splitbelow = true --- Horizontal splits on the bottom side
vim.o.pastetoggle = "<F3>" --- Use F3 to enter raw paste mode
vim.o.clipboard = "unnamedplus" --- Uses system clipboard for yanking
vim.o.updatetime = 300 --- Faster diagnostics
vim.o.mouse = "nv" --- Mouse interaction / scrolling

-- Neovim features
vim.o.inccommand = "split" --- Live preview search and replace
--- Required for nvim-cmp completion
vim.opt.completeopt = {
    "menu",
    "menuone",
    "noselect",
}

-- Remember last position when reopening file
vim.api.nvim_exec(
    [[
  au BufReadPost * if line("'\"") > 0 && line("'\"") <= line("$") | exe "normal! g`\"" | endif
]],
    false
)

-- Better backup, swap and undo storage
vim.o.backup = true --- Easier to recover and more secure
vim.bo.swapfile = false --- Instead of swaps, create backups
vim.bo.undofile = true --- Keeps undos after quit

-- Create backup directories if they don't exist
-- Should be fixed in 0.6 by https://github.com/neovim/neovim/pull/15433
vim.o.backupdir = vim.fn.stdpath("cache") .. "/backup"
vim.api.nvim_exec(
    [[
    if !isdirectory(&backupdir)
        call mkdir(&backupdir, "p")
    endif
]],
    false
)

-- LaTeX options
vim.api.nvim_exec(
    [[
    au FileType tex inoremap ;bf \textbf{}<Esc>i
    au BufWritePost *.tex silent! execute "!pdflatex -output-directory=%:p:h % >/dev/null 2>&1" | redraw!
]],
    false
)

-- Highlight when yanking
vim.api.nvim_exec(
    [[
    au TextYankPost * silent! lua vim.highlight.on_yank { timeout = 250 }
]],
    false
)

vim.api.nvim_create_autocmd("FileType", {
    pattern = "*.eml",
    callback = function()
        vim.o.wrapmargin = 79 -- Wrap text automatically
    end,
})

-- Netrw
vim.g.netrw_liststyle = 3 -- Change style to 'tree' view
vim.g.netrw_banner = 0 -- Remove useless banner
vim.g.netrw_winsize = 15 -- Explore window takes % of page
vim.g.netrw_browse_split = 4 -- Open in previous window
vim.g.netrw_altv = 1 -- Always split left