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.config/nvim/lua/plugins/cmp.lua

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+return {
+
+  -- nvim-cmp configuration so to not preselect completion and require tab to select
+  {
+    "hrsh7th/nvim-cmp",
+    dependencies = {
+      "hrsh7th/cmp-emoji",
+      opts = nil,
+    },
+    ---@param opts cmp.ConfigSchema
+    opts = function(_, opts)
+      local has_words_before = function()
+        unpack = unpack or table.unpack
+        local line, col = unpack(vim.api.nvim_win_get_cursor(0))
+        return col ~= 0 and vim.api.nvim_buf_get_lines(0, line - 1, line, true)[1]:sub(col, col):match("%s") == nil
+      end
+
+      local luasnip = require("luasnip")
+      local cmp = require("cmp")
+
+      opts.mapping = vim.tbl_extend("force", opts.mapping, {
+        ["<CR>"] = vim.NIL,
+
+        ["<Tab>"] = cmp.mapping(function(fallback)
+          if cmp.visible() then
+            cmp.confirm({ behavior = cmp.ConfirmBehavior.Insert, select = true })
+          elseif require("copilot.suggestion").is_visible() then
+            require("copilot.suggestion").accept()
+          elseif luasnip.expand_or_locally_jumpable() then
+            luasnip.expand_or_jump()
+          elseif has_words_before() then
+            cmp.complete()
+          else
+            fallback()
+          end
+        end, { "i", "s" }),
+
+        ["<S-Tab>"] = cmp.mapping(function(fallback)
+          if cmp.visible() then
+            cmp.select_prev_item()
+          elseif luasnip.jumpable(-1) then
+            luasnip.jump(-1)
+          else
+            fallback()
+          end
+        end, { "i", "s" }),
+      })
+      opts.preselect = cmp.PreselectMode.None
+      opts.sources = cmp.config.sources(vim.list_extend(opts.sources, { { name = "emoji" } }))
+    end,
+  },
+}