Rework Neovim configuration

home-manager/cli/neovim/files/options.lua

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+-- General Option
+vim.g.mapleader = " "
+vim.g.maplocalleader = " "
+
+vim.opt.autoindent = true
+vim.opt.background = 'dark'
+vim.opt.backupdir = os.getenv("HOME") .. '/.local/tmp/nvim'
+vim.opt.clipboard = 'unnamedplus'      --Use system clipboard
+vim.opt.colorcolumn = '80'
+vim.opt.directory = os.getenv("HOME") .. '/.local/tmp/nvim'
+vim.opt.expandtab = true
+vim.opt.foldmethod = 'syntax'
+vim.opt.gdefault = true 	            -- search: all occurrences by default
+vim.opt.hlsearch = true 	            -- search: hightlight terms
+vim.opt.ignorecase = true
+vim.opt.incsearch = true
+vim.opt.laststatus = 1
+-- show special character
+vim.opt.listchars = {tab = '→ ', trail = '␣', eol = '', extends = '…' }
+
+vim.opt.signcolumn = "yes"              -- alway show sign column
+vim.opt.number = true
+vim.opt.relativenumber = true
+vim.opt.cursorline = true               -- highlight current line
+vim.opt.shiftwidth = 4
+vim.opt.showmatch = true
+vim.opt.smartcase = true                -- search: try :to be smart about cases
+vim.opt.smartindent = true
+vim.opt.tabstop = 4
+vim.opt.termguicolors = true            -- 24 bits color support
+vim.opt.wildmenu = true                 -- activate enhanced user menu
+vim.opt.wildmode = 'lastused:full,list' -- enhance menu
+vim.opt.pumheight = 10
+vim.opt.pumwidth = 50
+vim.opt.pumblend = 10
+
+-- need to activate this for cmp
+vim.opt.completeopt = {'menu', 'menuone', 'noselect'}
+-- -- Code Fold
+-- "Load and save view atomatocally (save and restore fold)
+vim.cmd('au BufWinLeave *.* mkview')
+vim.cmd('au BufWinEnter *.* silent! loadview')
+
+
+-- Diagnostic settings
+--
+-- diagnostic windows must be float
+vim.diagnostic.config {
+  virtual_text = false,
+  signs = true,
+  underline = true,
+}
+
+local signs = { Error = "", Warn = "", Hint = "󰌶", Info = "" }
+for type, icon in pairs(signs) do
+  local hl = "DiagnosticSign" .. type
+  vim.fn.sign_define(hl, { text = icon, texthl = hl, numhl = hl })
+end
+
+-- You will likely want to reduce updatetime which affects CursorHold
+-- note: this setting is global and should be set only once
+vim.o.updatetime = 250
+vim.cmd [[autocmd! CursorHold,CursorHoldI * lua vim.diagnostic.open_float(nil, {scope='cursor', header = "", prefix = "", focus=false})]]
+
+-- Autotype
+vim.cmd('au BufRead,BufNewFile *.md setlocal textwidth=80')
+vim.cmd('au BufRead,BufNewFile *.tex setlocal textwidth=80')
+vim.cmd('au BufRead,BufNewFile *.nix setlocal tabstop=2 shiftwidth=2 ')
+vim.cmd('au BufNewFile,BufRead /tmp/neomutt* set tw=72 fo=awq comments+=nb:> noautoindent filetype=mail')
+
+-- Ignore these filenames during enhanced command line completion.
+vim.opt.wildignore = {
+    '*.bak',
+    '*.class',
+    '*.aux',
+    '*.out',
+    '*.toc',
+    '*.jpg',
+    '*.bmp',
+    '*.gif',
+    '*.png',
+    '*.luac',
+    '*.o',
+    '*.obj',
+    '*.exe',
+    '*.dll',
+    '*.manifest',
+    '*.pyc',
+    '*.spl',
+    '*.sw?'
+}
+
+--  Key biding
+-- " ----------
+local opts = { noremap = true, silent = true}
+
+vim.api.nvim_set_keymap('n', '<leader>/', ':nohlsearch<CR>', opts)
+
+-- Move tabs with \[ and \]
+vim.api.nvim_set_keymap('n', '<Leader>]', ':tabnext<CR>', opts)
+vim.api.nvim_set_keymap('n', '<Leader>[', ':tabprev<CR>', opts)
+vim.api.nvim_set_keymap('n', '<leader>l', ':set list!<CR>', {silent = true})