Add nvim-cmp basic config

lua/custom/completion.lua

@@ -0,0 +1,43 @@
+-- Set some settings for competion
+-- For more info type `:help completeopt`
+-- menu: Show menu when completions available (more than 1)
+-- menuone: Show menu even when there is only 1 option
+-- noselect: Force user to select convinient option
+vim.opt.completeopt = { "menu", "menuone", "noselect" }
+
+local lspkind = require "lspkind"
+
+local kind_formatter = lspkind.cmp_format {
+  mode = "symbol_text",
+  menu = {
+    buffer = "[buf]",
+    nvim_lsp = "[LSP]",
+    nvim_lua = "[api]",
+    path = "[path]",
+    luasnip = "[snip]",
+    gh_issues = "[issues]",
+    tn = "[TabNine]",
+    eruby = "[erb]",
+  },
+}
+
+local cmp = require "cmp"
+
+cmp.setup {
+  sources = {
+    { name = "nvim_lsp" },
+    { name = "path" },
+    { name = "buffer" },
+  },
+  mapping = {
+    ["<C-n>"] = cmp.mapping.select_next_item { behavior = cmp.SelectBehavior.Insert },
+    ["<C-p>"] = cmp.mapping.select_prev_item { behavior = cmp.SelectBehavior.Insert },
+    ["<C-y>"] = cmp.mapping(
+      cmp.mapping.confirm {
+        behavior = cmp.ConfirmBehavior.Insert,
+        select = true,
+      },
+      { "i", "c" }
+    ),
+  },
+}

lua/custom/plugins/completion.lua

@@ -0,0 +1,19 @@
+return {
+  "hrsh7th/nvim-cmp",
+  event = "InsertEnter",  -- Only load plugin when in INSERT mode
+  dependencies = {
+    "hrsh7th/cmp-buffer", -- source for text in buffer
+    "hrsh7th/cmp-path",   -- source for file system paths
+    {
+      "L3MON4D3/LuaSnip",
+      -- follow latest release.
+      version = "v2.*",             -- Replace <CurrentMajor> by the latest released major (first number of latest release)
+    },
+    "saadparwaiz1/cmp_luasnip",     -- for autocompletion
+    "rafamadriz/friendly-snippets", -- useful snippets
+    "onsails/lspkind.nvim",         -- vs-code like pictograms
+  },
+  config = function()
+    require "custom/completion"
+  end,
+}