mvim - mini neovim config

init.lua

-- minimal vim

--   ___  ____ _____ ___ ___  _   _ ____  
--  / _ \|  _ \_   _|_ _/ _ \| \ | / ___| 
-- | | | | |_) || |  | | | | |  \| \___ \ 
-- | |_| |  __/ | |  | | |_| | |\  |___) |
--  \___/|_|    |_| |___\___/|_| \_|____/ 

-- need the leader to be space
vim.g.mapleader = " "
vim.g.maplocalleader = " "

-- minimalism
vim.o.laststatus = 0
vim.o.cmdheight = 1 -- tried at zero but handy when typing numbers e.g. 80G in insert mode
vim.opt.list = false
vim.opt.listchars = { space = "⋅", tab = "→ " }

-- behaviour i like
vim.o.splitright = true
vim.o.splitbelow = true
vim.o.undofile = true
vim.o.wrap = false
vim.o.tabstop = 2 -- how wide the tab is
vim.o.shiftwidth = 2 -- how much to shift by when tab pressed
vim.o.expandtab = true -- spaces by default
vim.o.foldlevelstart = 99 -- disable folds
vim.opt.isfname:append("32") -- need for 'gf' to work with files that contain spaces (ASCII 32)

-- some shell stuff, huh???
vim.g.shell = "/bin/zsh"
vim.o.termguicolors = true -- setting this explicitly as otherwise opening a neovim tab in tmux via send-keys

-- local init.lua! for more: `:h exrc`
vim.o.exrc = true
vim.o.secure = true

--  _____ _   _ _   _  ____ _____ ___ ___  _   _ ____  
-- |  ___| | | | \ | |/ ___|_   _|_ _/ _ \| \ | / ___| 
-- | |_  | | | |  \| | |     | |  | | | | |  \| \___ \ 
-- |  _| | |_| | |\  | |___  | |  | | |_| | |\  |___) |
-- |_|    \___/|_| \_|\____| |_| |___\___/|_| \_|____/ 
                                                    
-- save if not exists
function save_if_not_exists()
	local path = vim.fn.expand("%:p:h") -- Get the directory of the current file
	if vim.fn.isdirectory(path) == 0 then
		vim.fn.mkdir(path, "p") -- Create the directory if it doesn't exist
	end
	vim.cmd("write") -- Save the file
end

function exec_to_buffer()
	vim.ui.input({ prompt = "$ " }, function(c)
		if not c or c == "" then
			return
		end
		c = vim.fn.expandcmd(c)
		vim.cmd("noswapfile vnew")
		vim.bo.buftype = "nofile"
		vim.bo.bufhidden = "wipe"
		vim.api.nvim_buf_set_lines(0, 0, -1, false, vim.fn.systemlist(c))
	end)
end

--  _  _________   ______ ___ _   _ ____ ___ _   _  ____ ____  
-- | |/ / ____\ \ / / __ )_ _| \ | |  _ \_ _| \ | |/ ___/ ___| 
-- | ' /|  _|  \ V /|  _ \| ||  \| | | | | ||  \| | |  _\___ \ 
-- | . \| |___  | | | |_) | || |\  | |_| | || |\  | |_| |___) |
-- |_|\_\_____| |_| |____/___|_| \_|____/___|_| \_|\____|____/ 
                                                            
-- more convenient clipboard!
vim.keymap.set({ "n", "v" }, "<leader>c", '"+', { silent = true })

-- backspace to go to "last" file
vim.keymap.set("n", "<BS>", ":b#<CR>", { silent = true })

-- copying keeps selection
vim.keymap.set("n", "gy", "`[v`]", { silent = true })
vim.keymap.set("n", "gp", "`[v`]", { silent = true })

-- convenient selection
vim.keymap.set({ "n", "v" }, "<leader>y", [["+y]])
vim.keymap.set({ "n", "v" }, "<leader>p", [["+p]])

-- quickfix list
vim.keymap.set("n", "]c", ":cn<CR>", { silent = true })
vim.keymap.set("n", "[c", ":cp<CR>", { silent = true })
vim.keymap.set("n", "<leader>q", ":copen<CR>", { silent = true })

-- escape in the terminal
vim.keymap.set("t", "<ESC>", [[<C-\><C-n>]])
-- insert on terminal open
vim.api.nvim_create_autocmd({ "TermOpen" }, {
	callback = function()
		vim.cmd([[startinsert]])
	end,
})

-- lets you execute any command and get the output in a tmp buffer
vim.keymap.set("n", "<leader>c", exec_to_buffer)

vim.api.nvim_create_user_command("W", save_if_not_exists, { nargs = 0 })

-- LSP
-- vim.keymap.set("n", "gd", require("dom.go_to_definition"))
vim.keymap.set("n", "gr", vim.lsp.buf.references)
vim.keymap.set("n", "<leader>rn", vim.lsp.buf.rename)
vim.keymap.set("n", "<leader>a", vim.lsp.buf.code_action)
vim.keymap.set("n", "[d", vim.diagnostic.goto_prev)
vim.keymap.set("n", "]d", vim.diagnostic.goto_next)
vim.keymap.set("n", "K", vim.lsp.buf.hover)

-- quick open
vim.keymap.set("n", "<leader>o", [[:!open "%"<CR>]], { silent = true, desc = "Open file in default app" })

-- vim.keymap.set("n", "<leader>ov", ":e .nvim.lua<CR>", { silent = true, desc = "Open neoVim config" })
-- vim.keymap.set("n", "<leader>ot", ":e .dt/tasks<CR>", { silent = true, desc = "Open tasks" })
-- vim.keymap.set("n", "<leader>op", ":e .dt/playbook.md<CR>", { silent = true, desc = "Open Playbook" })