Finally modularize neovim configuration

lua/plugins/completion.lua

@@ -0,0 +1,136 @@
+-- Completion and snippets configuration
+
+return {
+	{
+		"hrsh7th/nvim-cmp",
+		event = "InsertEnter",
+		dependencies = {
+			{
+				"L3MON4D3/LuaSnip",
+				build = (function()
+					if vim.fn.has("win32") == 1 or vim.fn.executable("make") == 0 then
+						return
+					end
+					return "make install_jsregexp"
+				end)(),
+				config = function()
+					require("luasnip.loaders.from_snipmate").lazy_load({ paths = "./snippets" })
+					local ls = require("luasnip")
+					local snip = ls.snippet
+					local node = ls.snippet_node
+					local text = ls.text_node
+					local insert = ls.insert_node
+					local func = ls.function_node
+					local choice = ls.choice_node
+					local dynamicn = ls.dynamic_node
+
+					ls.add_snippets(nil, {
+						python = {
+							snip({
+								trig = "imp",
+								namr = "Imports",
+								dscr = "Comments for imports",
+							}, {
+								text({ "# Core modules", "" }),
+								insert(1),
+								text({ "", "# Non-core modules", "" }),
+								insert(2),
+								text({ "", "# SEI modules", "" }),
+								insert(3),
+							}),
+						},
+						tex = {
+							snip({
+								trig = "input",
+								namr = "Input Cell",
+								dscr = "Cell for SEIInputTable",
+							}, {
+								text({ "\\hypertarget{" }),
+								insert(1),
+								text({ "}{" }),
+								insert(2),
+								text({ "} & \\SEICell{", "\t" }),
+								insert(3),
+								text({ "", "}\\\\", "" }),
+							}),
+						},
+						markdown = {
+							snip({
+								trig = "img",
+								namr = "image",
+								dscr = "Markdown img",
+							}, {
+								text({ "![" }),
+								insert(1),
+								text("]("),
+								insert(2),
+								text(")"),
+							}),
+							snip({
+								trig = "header",
+								namr = "header",
+								dscr = "Yaml header for markdown notes",
+							}, {
+								text({ "---", "" }),
+								text("title: "),
+								insert(1),
+								text({ "", "author: Alex Selimov", "" }),
+								text("tags: ["),
+								insert(2),
+								text({ "]", "", "" }),
+								text({ "---", "" }),
+							}),
+						},
+					})
+				end,
+			},
+			"saadparwaiz1/cmp_luasnip",
+			"hrsh7th/cmp-nvim-lsp",
+			"hrsh7th/cmp-path",
+		},
+		config = function()
+			local cmp = require("cmp")
+			local luasnip = require("luasnip")
+			luasnip.config.setup({})
+			cmp.setup({
+				snippet = {
+					expand = function(args)
+						luasnip.lsp_expand(args.body)
+					end,
+				},
+				completion = { completeopt = "menu,menuone,noinsert" },
+
+				mapping = cmp.mapping.preset.insert({
+					["<C-n>"] = cmp.mapping.select_next_item(),
+					["<C-p>"] = cmp.mapping.select_prev_item(),
+					["<C-y>"] = cmp.mapping.confirm({ select = true }),
+
+					["<leader>j"] = cmp.mapping(function()
+						if luasnip.expand_or_locally_jumpable() then
+							luasnip.expand_or_jump()
+						end
+					end, { "i", "s" }),
+					["<leader>k"] = cmp.mapping(function()
+						if luasnip.locally_jumpable(-1) then
+							luasnip.jump(-1)
+						end
+					end, { "i", "s" }),
+				}),
+				sources = {
+					{ name = "nvim_lsp" },
+					{ name = "luasnip" },
+					{ name = "path" },
+				},
+			})
+		end,
+		snippet = {
+			expand = function(args)
+				local luasnip = require("luasnip")
+				if not luasnip then
+					return
+				end
+				luasnip.lsp_expand(args.body)
+			end,
+		},
+	},
+}