DashNix/nvim/lua/settings/cmp.lua

local cmp_status_ok, cmp = pcall(require, "cmp")
if not cmp_status_ok then
	return
end

local snip_status_ok, luasnip = pcall(require, "luasnip")
if not snip_status_ok then
	return
end

require("luasnip.loaders.from_lua").load({ paths = "~/.config/nvim/snippets" })

luasnip.config.set_config({
	history = true,
	updateevents = "TextChanged,TextChangedI",
	enable_autosnippets = true,
	ext_opts = {
		[require("luasnip.util.types").choiceNode] = {
			active = {
				virt_text = { {
					Snippet = "",
					"Snippet",
				} },
			},
		},
	},
})

--vim.cmd('let g:snipMate = {"snippet_version" : 1 }')
require("luasnip/loaders/from_vscode").lazy_load()
--require("luasnip.loaders.from_snipmate").lazy_load()

local check_backspace = function()
	local col = vim.fn.col(".") - 1
	return col == 0 or vim.fn.getline("."):sub(col, col):match("%s")
end

--   פּ ﯟ   some other good icons
local kind_icons = {
	Text = "",
	Method = "m",
	Function = "",
	Constructor = "",
	Field = "",
	Variable = "",
	Class = "",
	Interface = "",
	Module = "",
	Property = "",
	Unit = "",
	Value = "",
	Enum = "",
	Keyword = "",
	Snippet = "",
	Color = "",
	File = "",
	Reference = "",
	Folder = "",
	EnumMember = "",
	Constant = "",
	Struct = "",
	Event = "",
	Operator = "",
	TypeParameter = "",
}
-- find more here: https://www.nerdfonts.com/cheat-sheet

--local has_words_before = function()
--  local line, col = unpack(vim.api.nvim_win_get_cursor(0))
--  return col ~= 0 and vim.api.nvim_buf_get_lines(0, line - 1, line, true)[1]:sub(col, col):match("%s") == nil
--end

cmp.setup({
	snippet = {
		expand = function(args)
			luasnip.lsp_expand(args.body) -- For `luasnip` users.
		end,
	},
	mapping = {
		["<C-k>"] = cmp.mapping.select_prev_item(),
		--["<C-j>"] = cmp.mapping.select_next_item(),
		["<C-b>"] = cmp.mapping(cmp.mapping.scroll_docs(-1), { "i", "c" }),
		["<C-f>"] = cmp.mapping(cmp.mapping.scroll_docs(1), { "i", "c" }),
		["<C-Space>"] = cmp.mapping(cmp.mapping.complete(), { "i", "c" }),
		["<C-y>"] = cmp.config.disable, -- Specify `cmp.config.disable` if you want to remove the default `<C-y>` mapping.
		["<C-e>"] = cmp.mapping({
			i = cmp.mapping.abort(),
			c = cmp.mapping.close(),
		}),
		-- mapping = cmp.mapping.preset.insert({
		--   ['<C-b>'] = cmp.mapping.scroll_docs(-4),
		--   ['<C-f>'] = cmp.mapping.scroll_docs(4),
		--   ['<C-Space>'] = cmp.mapping.complete(),
		--   ['<C-e>'] = cmp.mapping.abort(),
		--   ['<CR>'] = cmp.mapping.confirm({ select = true }), -- Accept currently selected item. Set `select` to `false` to only confirm explicitly selected items.
		-- }),
		-- Accept currently selected item. If none selected, `select` first item.
		-- Set `select` to `false` to only confirm explicitly selected items.
		["<CR>"] = cmp.mapping.confirm({ select = true }),
		["<Tab>"] = cmp.mapping(function(fallback)
			if cmp.visible() then
				cmp.select_next_item()
			else
				fallback()
			end
		end, { "i", "s" }),
		["<C-j>"] = cmp.mapping(function(fallback)
			if luasnip.expandable() then
				luasnip.expand()
			elseif luasnip.expand_or_jumpable() then
				luasnip.expand_or_jump()
			elseif check_backspace() then
				fallback()
			else
				fallback()
			end
		end, {
			"i",
			"s",
		}),
		["<S-Tab>"] = cmp.mapping(function(fallback)
			if luasnip.jumpable(-1) then
				luasnip.jump(-1)
			else
				fallback()
			end
		end, {
			"i",
			"s",
		}),
	},
	formatting = {
		fields = { "kind", "abbr", "menu" },
		format = function(entry, vim_item)
			-- Kind icons
			vim_item.kind = string.format("%s", kind_icons[vim_item.kind])
			-- vim_item.kind = string.format('%s %s', kind_icons[vim_item.kind], vim_item.kind) -- This concatonates the icons with the name of the item kind
			vim_item.menu = ({
				nvim_lsp = "[LSP]",
				luasnip = "[Snippet]",
				buffer = "[Buffer]",
				path = "[Path]",
			})[entry.source.name]
			return vim_item
		end,
	},
	sources = {
		{ name = "nvim_lsp" },
		{ name = "luasnip" },
		--{
    --  name = "buffer",
    --  option = {
    --    keyword_pattern = [[\k\+]],
    --  }
    --},
		{ name = "path" },
	--	{
	--		name = "spell",
	--		option = {
	--			keep_all_entries = false,
	--			enable_in_context = function()
	--				return true
	--			end,
	--		},
	--	},
	},
	confirm_opts = {
		behavior = cmp.ConfirmBehavior.Replace,
		select = false,
	},
	window = {
		documentation = {
			border = { "╭", "─", "╮", "│", "╯", "─", "╰", "│" },
		},
	},
	experimental = {
		ghost_text = false,
		native_menu = false,
	},
})