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plugin/10_options.lua

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+-- ┌──────────────────────────┐
+-- │ Built-in Neovim behavior │
+-- └──────────────────────────┘
+--
+-- This file defines Neovim's built-in behavior. The goal is to improve overall
+-- usability in a way that works best with MINI.
+--
+-- Here `vim.o.xxx = value` sets default value of option `xxx` to `value`.
+-- See `:h 'xxx'` (replace `xxx` with actual option name).
+--
+-- Option values can be customized on per buffer or window basis.
+-- See 'after/ftplugin/' for common example.
+
+-- stylua: ignore start
+-- The next part (until `-- stylua: ignore end`) is aligned manually for easier
+-- reading. Consider preserving this or remove `-- stylua` lines to autoformat.
+
+-- General ====================================================================
+vim.g.mapleader = ' ' -- Use `<Space>` as <Leader> key
+
+vim.o.mouse       = 'a'            -- Enable mouse
+vim.o.mousescroll = 'ver:25,hor:6' -- Customize mouse scroll
+vim.o.switchbuf   = 'usetab'       -- Use already opened buffers when switching
+vim.o.undofile    = true           -- Enable persistent undo
+
+vim.o.shada = "'100,<50,s10,:1000,/100,@100,h" -- Limit ShaDa file (for startup)
+
+vim.opt.clipboard = 'unnamedplus'
+
+-- Enable all filetype plugins and syntax (if not enabled, for better startup)
+vim.cmd('filetype plugin indent on')
+if vim.fn.exists('syntax_on') ~= 1 then vim.cmd('syntax enable') end
+
+-- UI =========================================================================
+vim.o.breakindent    = true       -- Indent wrapped lines to match line start
+vim.o.breakindentopt = 'list:-1'  -- Add padding for lists (if 'wrap' is set)
+vim.o.colorcolumn    = '+1'       -- Draw column on the right of maximum width
+vim.o.cursorline     = true       -- Enable current line highlighting
+vim.o.linebreak      = true       -- Wrap lines at 'breakat' (if 'wrap' is set)
+vim.o.list           = true       -- Show helpful text indicators
+vim.o.number         = true       -- Show line numbers
+vim.o.pumheight      = 10         -- Make popup menu smaller
+vim.o.ruler          = false      -- Don't show cursor coordinates
+vim.o.shortmess      = 'CFOSWaco' -- Disable some built-in completion messages
+vim.o.showmode       = false      -- Don't show mode in command line
+vim.o.signcolumn     = 'yes'      -- Always show signcolumn (less flicker)
+vim.o.splitbelow     = true       -- Horizontal splits will be below
+vim.o.splitkeep      = 'screen'   -- Reduce scroll during window split
+vim.o.splitright     = true       -- Vertical splits will be to the right
+vim.o.winborder      = 'single'   -- Use border in floating windows
+vim.o.wrap           = false      -- Don't visually wrap lines (toggle with \w)
+
+vim.o.cursorlineopt  = 'screenline,number' -- Show cursor line per screen line
+
+-- Special UI symbols. More is set via 'mini.basics' later.
+vim.o.fillchars = 'eob: ,fold:╌'
+vim.o.listchars = 'extends:…,nbsp:␣,precedes:…,tab:> '
+
+-- Folds (see `:h fold-commands`, `:h zM`, `:h zR`, `:h zA`, `:h zj`)
+vim.o.foldlevel   = 10       -- Fold nothing by default; set to 0 or 1 to fold
+vim.o.foldmethod  = 'indent' -- Fold based on indent level
+vim.o.foldnestmax = 10       -- Limit number of fold levels
+vim.o.foldtext    = ''       -- Show text under fold with its highlighting
+
+-- Editing ====================================================================
+vim.o.autoindent    = true    -- Use auto indent
+vim.o.expandtab     = true    -- Convert tabs to spaces
+vim.o.formatoptions = 'rqnl1j'-- Improve comment editing
+vim.o.ignorecase    = true    -- Ignore case during search
+vim.o.incsearch     = true    -- Show search matches while typing
+vim.o.infercase     = true    -- Infer case in built-in completion
+vim.o.shiftwidth    = 2       -- Use this number of spaces for indentation
+vim.o.smartcase     = true    -- Respect case if search pattern has upper case
+vim.o.smartindent   = true    -- Make indenting smart
+vim.o.spelloptions  = 'camel' -- Treat camelCase word parts as separate words
+vim.o.tabstop       = 2       -- Show tab as this number of spaces
+vim.o.virtualedit   = 'block' -- Allow going past end of line in blockwise mode
+
+vim.o.iskeyword = '@,48-57,_,192-255,-' -- Treat dash as `word` textobject part
+
+-- Pattern for a start of numbered list (used in `gw`). This reads as
+-- "Start of list item is: at least one special character (digit, -, +, *)
+-- possibly followed by punctuation (. or `)`) followed by at least one space".
+vim.o.formatlistpat = [[^\s*[0-9\-\+\*]\+[\.\)]*\s\+]]
+
+-- Built-in completion
+vim.o.complete    = '.,w,b,kspell'                  -- Use less sources
+vim.o.completeopt = 'menuone,noselect,fuzzy,nosort' -- Use custom behavior
+
+-- Autocommands ===============================================================
+
+-- Don't auto-wrap comments and don't insert comment leader after hitting 'o'.
+-- Do on `FileType` to always override these changes from filetype plugins.
+local f = function() vim.cmd('setlocal formatoptions-=c formatoptions-=o') end
+_G.Config.new_autocmd('FileType', nil, f, "Proper 'formatoptions'")
+
+-- There are other autocommands created by 'mini.basics'. See 'plugin/30_mini.lua'.
+
+-- Diagnostics ================================================================
+
+-- Neovim has built-in support for showing diagnostic messages. This configures
+-- a more conservative display while still being useful.
+-- See `:h vim.diagnostic` and `:h vim.diagnostic.config()`.
+local diagnostic_opts = {
+  -- Show signs on top of any other sign, but only for warnings and errors
+  signs = { priority = 9999, severity = { min = 'WARN', max = 'ERROR' } },
+
+  -- Show all diagnostics as underline (for their messages type `<Leader>ld`)
+  underline = { severity = { min = 'HINT', max = 'ERROR' } },
+
+  -- Show more details immediately for errors on the current line
+  virtual_lines = false,
+  virtual_text = {
+    current_line = true,
+    severity = { min = 'ERROR', max = 'ERROR' },
+  },
+
+  -- Don't update diagnostics when typing
+  update_in_insert = false,
+}
+
+-- Use `later()` to avoid sourcing `vim.diagnostic` on startup
+MiniDeps.later(function() vim.diagnostic.config(diagnostic_opts) end)
+-- stylua: ignore end