From c441d12430d7676109e3d522a72a635234781f11 Mon Sep 17 00:00:00 2001
From: Rawley Fowler <75388349+rawleyfowler@users.noreply.github.com>
Date: Sun, 24 Jul 2022 20:23:26 -0600
Subject: [PATCH] Create lsp.lua

---
 neovim/after/plugin/lsp.lua | 104 ++++++++++++++++++++++++++++++++++++
 1 file changed, 104 insertions(+)
 create mode 100644 neovim/after/plugin/lsp.lua

diff --git a/neovim/after/plugin/lsp.lua b/neovim/after/plugin/lsp.lua
new file mode 100644
index 0000000..6e54ebb
--- /dev/null
+++ b/neovim/after/plugin/lsp.lua
@@ -0,0 +1,104 @@
+local nnoremap = require('rf.binds').nnoremap
+local inoremap = require('rf.binds').inoremap
+
+local capabilities = vim.lsp.protocol.make_client_capabilities()
+capabilities.textDocument.completion.completionItem.snippetSupport = true
+
+-- cmp
+local cmp = require('cmp')
+local source_mapping = {
+	buffer = '[Buffer]',
+	nvim_lsp = '[LSP]',
+	nvim_lua = '[Lua]',
+	cmp_tabnine = '[TN]',
+	path = '[Path]',
+}
+
+local lspkind = require('lspkind')
+
+cmp.setup({
+	snippet = {
+		expand = function(args)
+			require("luasnip").lsp_expand(args.body)
+		end,
+	},
+
+	mapping = cmp.mapping.preset.insert({
+		['<C-y>'] = cmp.mapping.confirm({ select = true }),
+		["<C-u>"] = cmp.mapping.scroll_docs(-4),
+		["<C-d>"] = cmp.mapping.scroll_docs(4),
+		["<C-Space>"] = cmp.mapping.complete(),
+	}),
+
+	formatting = {
+		format = function(entry, vim_item)
+			vim_item.kind = lspkind.presets.default[vim_item.kind]
+			local menu = source_mapping[entry.source.name]
+			if entry.source.name == "cmp_tabnine" then
+				if entry.completion_item.data ~= nil and entry.completion_item.data.detail ~= nil then
+					menu = entry.completion_item.data.detail .. " " .. menu
+				end
+				vim_item.kind = ""
+			end
+			vim_item.menu = menu
+			return vim_item
+		end,
+	},
+
+	sources = {
+		{ name = "cmp_tabnine" },
+		{ name = "nvim_lsp" },
+		{ name = "luasnip" },
+		{ name = "buffer" },
+	},
+})
+
+local function config(conf)
+	return vim.tbl_deep_extend('force', {
+		capabilities = require('cmp_nvim_lsp').update_capabilities(vim.lsp.protocol.make_client_capabilities()),
+		on_attch = function()
+			inoremap('<C-h>', function() vim.lsp.buf.signature_help() end)
+		end,
+	}, conf or {})
+end
+
+-- LSP configurations
+local simple_language_servers = { 'tsserver', 'solargraph' }
+
+for _, v in ipairs(simple_language_servers) do
+	require('lspconfig')[v].setup(config())
+end
+
+require('lspconfig').gopls.setup(config({
+	cmd = { 'gopls', 'serve' },
+	settings = {
+		gopls = {
+			analyses = {
+				unusedparams = true,
+			},
+			staticcheck = true,
+		},
+	},
+}));
+
+-- Lua snip
+local snippets_paths = function()
+	local plugs = { 'friendly-snippets' }
+	local paths = {}
+	local path
+	local root_path = vim.env.HOME .. '/.vim/plugged/'
+
+	for _, plug in ipairs(plugs) do
+		path = root_path .. plug
+		if vim.fn.isdirectory(path) ~= 0 then
+			table.insert(paths, path)
+		end
+	end
+	return paths
+end
+
+require('luasnip.loaders.from_vscode').lazy_load({
+	paths = snippets_paths(),
+	include = nil,
+	exclude = {},
+})