refactor config

config/nvim.old/lua/plugins/lsp.lua

@@ -0,0 +1,160 @@
+--[[
+
+	LSP Server: code completition, references for variables and other stuff.
+	Linter: Code rules for consistency.
+	Formatter: Code style for eye candy.
+	Debugger: well... a debugger...
+
+--]]
+
+-- FIXME: Refactor this code so it's more readable
+
+local function setup()
+	local lsp = require("lsp-zero")
+	local cmp = require("cmp")
+	local null_ls = require("null-ls")
+	-- local mason_null_ls = require("mason-null-ls")
+
+	lsp.preset("recommended")
+
+	lsp.nvim_workspace({
+		library = vim.api.nvim_get_runtime_file("", true),
+	})
+
+	local cmp_select = { behavior = cmp.SelectBehavior.Select }
+
+	lsp.setup_nvim_cmp({
+		mapping = lsp.defaults.cmp_mappings({
+			["<C-p>"] = cmp.mapping.select_prev_item(cmp_select),
+			["<C-n>"] = cmp.mapping.select_next_item(cmp_select),
+		}),
+
+		sources = {
+			{ name = "path" },
+			{ name = "nvim_lsp", keyword_length = 3 },
+			{ name = "luasnip", keyword_length = 2 },
+		},
+	})
+
+	lsp.set_preferences({
+		set_lsp_keymaps = false,
+	})
+
+	vim.keymap.set("n", "K", function()
+		vim.lsp.buf.hover()
+	end, { desc = "Show lsp info of the symbol under the cursor", silent = true })
+	vim.keymap.set("n", "gd", function()
+		vim.lsp.buf.definition()
+	end, { desc = "Go to definition", silent = true })
+	vim.keymap.set("n", "gD", function()
+		vim.lsp.buf.declaration()
+	end, { desc = "Go to declaration", silent = true })
+	vim.keymap.set("n", "gi", function()
+		vim.lsp.buf.implementation()
+	end, { desc = "Go to implementation", silent = true })
+	vim.keymap.set("n", "go", function()
+		vim.lsp.buf.type_definition()
+	end, { desc = "Go to definition of the type", silent = true })
+	vim.keymap.set("n", "gr", function()
+		vim.lsp.buf.references()
+	end, { desc = "List references in quickfix window", silent = true })
+	vim.keymap.set("n", "K", function()
+		vim.lsp.buf.signature_help()
+	end, { desc = "Show signature", silent = true })
+	vim.keymap.set("n", "<Leader>lr", function()
+		vim.lsp.buf.rename()
+	end, { desc = "Rename all references", silent = true })
+	vim.keymap.set("n", "<Leader>la", function()
+		vim.lsp.buf.code_action()
+	end, { desc = "Code action", silent = true })
+	vim.keymap.set("n", "<Leader>lj", function()
+		vim.diagnostic.goto_next()
+	end, { desc = "Go to next diagnostics", silent = true })
+	vim.keymap.set("n", "<Leader>lk", function()
+		vim.diagnostic.goto_prev()
+	end, { desc = "Go to prev diagnostics", silent = true })
+
+	lsp.setup()
+
+	local null_linters = null_ls.builtins.diagnostics
+	local null_formatters = null_ls.builtins.formatting
+
+	local augroup = vim.api.nvim_create_augroup("LspFormatting", {})
+
+	local lsp_formatting = function(bufnr)
+		vim.lsp.buf.format({
+			filter = function(client)
+				-- apply whatever logic you want (in this example, we'll only use null-ls)
+				return client.name == "null-ls"
+			end,
+			bufnr = bufnr,
+		})
+	end
+
+	null_ls.setup({
+		on_attach = function(client, bufnr)
+			if client.supports_method("textDocument/formatting") then
+				vim.api.nvim_clear_autocmds({ group = augroup, buffer = bufnr })
+				vim.api.nvim_create_autocmd("BufWritePre", {
+					group = augroup,
+					buffer = bufnr,
+					callback = function()
+						-- TODO: use this when neovim 8.0 comes out
+						lsp_formatting(bufnr)
+						-- vim.lsp.buf.formatting_sync()
+					end,
+				})
+			end
+		end,
+
+		sources = {
+			-- Linters --
+			null_linters.eslint_d,
+			null_linters.gitlint,
+			null_linters.luacheck,
+			null_linters.markdownlint,
+			null_linters.shellcheck,
+			null_linters.yamllint,
+			null_linters.todo_comments,
+
+			-- Formatters --
+			null_formatters.blade_formatter,
+			null_formatters.blue,
+			null_formatters.fixjson,
+			null_formatters.phpcsfixer,
+			null_formatters.prettierd,
+			null_formatters.shfmt,
+			null_formatters.sql_formatter,
+			null_formatters.stylua,
+			null_formatters.yamlfmt,
+		},
+	})
+end
+
+return {
+	"VonHeikemen/lsp-zero.nvim",
+	config = setup,
+	requires = {
+		-- LSP Support
+		{ "neovim/nvim-lspconfig" },
+		{ "williamboman/mason.nvim" },
+		{ "williamboman/mason-lspconfig.nvim" },
+
+		-- Autocompletion
+		{ "hrsh7th/nvim-cmp" },
+		{ "hrsh7th/cmp-buffer" },
+		{ "hrsh7th/cmp-path" },
+		{ "saadparwaiz1/cmp_luasnip" },
+		{ "hrsh7th/cmp-nvim-lsp" },
+		{ "hrsh7th/cmp-nvim-lua" },
+
+		-- Snippets
+		{ "L3MON4D3/LuaSnip" },
+		{ "rafamadriz/friendly-snippets" },
+
+		-- Linters and Formatters
+		{ "jose-elias-alvarez/null-ls.nvim" },
+		-- { "jayp0521/mason-null-ls.nvim" },
+		{ "nvim-lua/plenary.nvim" },
+	},
+}