configure lsp, completion and some additional colors

after/plugin/completion.lua

@@ -0,0 +1,36 @@
+---
+-- Autocompletion config
+---
+local lsp_zero = require('lsp-zero')
+local cmp = require('cmp')
+local cmp_action = lsp_zero.cmp_action()
+
+cmp.setup({
+	sources = {
+		{ name = 'path' },
+		{ name = 'nvim_lsp' },
+		{ name = 'luasnip', keyword_length = 2 },
+		{ name = 'buffer',  keyword_length = 3 },
+	},
+	mapping = cmp.mapping.preset.insert({
+		-- `Enter` key to confirm completion
+		['<CR>'] = cmp.mapping.confirm({ select = false }),
+
+		-- Ctrl+Space to trigger completion menu
+		['<C-Space>'] = cmp.mapping.complete(),
+
+		-- Navigate between snippet placeholder
+		['<C-f>'] = cmp_action.luasnip_jump_forward(),
+		['<C-b>'] = cmp_action.luasnip_jump_backward(),
+
+		-- Scroll up and down in the completion documentation
+		['<C-u>'] = cmp.mapping.scroll_docs(-4),
+		['<C-d>'] = cmp.mapping.scroll_docs(4),
+	}),
+	snippet = {
+		expand = function(args)
+			require('luasnip').lsp_expand(args.body)
+		end,
+	},
+})
+