dotfiles/symlinks/config/nvim/lua/lsp/completion.lua

-------------------------------------------------------------------------------
--    - LSP completion config -
-------------------------------------------------------------------------------
-- Set completeopt to have a better completion experience
vim.o.completeopt = "menu,menuone,noselect"

local cmp = require("cmp")
local luasnip = require("luasnip")

cmp.setup({
	snippet = {
		expand = function(args)
			require("luasnip").lsp_expand(args.body)
		end,
	},
	mapping = {
		["<C-d>"] = cmp.mapping.scroll_docs(-4),
		["<C-f>"] = cmp.mapping.scroll_docs(4),
		["<C-Space>"] = cmp.mapping.complete(),
		["<C-e>"] = cmp.mapping.close(),
		["<C-y>"] = cmp.mapping.confirm({ select = true }),
		["<C-n>"] = function(fallback)
			if cmp.visible() then
				cmp.select_next_item()
			else
				fallback()
			end
		end,
		["<C-p>"] = function(fallback)
			if cmp.visible() then
				cmp.select_prev_item()
			else
				fallback()
			end
		end,
		["<C-j>"] = cmp.mapping(function(fallback)
			if luasnip.jumpable(1) then
				luasnip.jump(1)
			else
				fallback()
			end
		end, { "i", "s" }),
		["<C-k>"] = cmp.mapping(function(fallback)
			if luasnip.jumpable(-1) then
				luasnip.jump(-1)
			else
				fallback()
			end
		end, { "i", "s" }),
	},
	sources = {
		{ name = "nvim_lsp" },
		{ name = "nvim_lua" },
		{ name = "path" },
		{ name = "luasnip" },
		{ name = "buffer" },
	},
})