nix-dots/pkgs/nvim/config/completion/cmp.nix

{
  plugins = {
    cmp-nvim-lsp = {enable = true;}; # lsp
    cmp-buffer = {enable = true;};
    copilot-cmp = {enable = true;}; # copilot suggestions
    cmp-path = {enable = true;}; # file system paths
    cmp_luasnip = {enable = true;}; # snippets
    cmp-cmdline = {enable = false;}; # autocomplete for cmdline
    cmp = {
      enable = true;
      autoEnableSources = false;
      settings = {
        experimental = {
          ghost_text = true;
        };
      };
      settings = {
        mapping = {
          __raw = ''
            cmp.mapping.preset.insert({
            ['<C-j>'] = cmp.mapping.select_next_item(),
            ['<C-k>'] = cmp.mapping.select_prev_item(),
            ['<C-e>'] = cmp.mapping.abort(),

            ['<C-b>'] = cmp.mapping.scroll_docs(-4),

             ['<C-f>'] = cmp.mapping.scroll_docs(4),

             ['<C-Space>'] = cmp.mapping.complete(),

             ['<CR>'] = cmp.mapping.confirm({ select = true }),

             ['<S-CR>'] = cmp.mapping.confirm({ behavior = cmp.ConfirmBehavior.Replace, select = true }),
            })
          '';
        };
        snippet = {
          expand = "function(args) require('luasnip').lsp_expand(args.body) end";
        };
        sources = {
          __raw = ''
            cmp.config.sources({
              {name = 'nvim_lsp'},
              {name = 'copilot'},
              {name = 'path'},
              {name = 'luasnip'},
              {name = 'cmdline'},
              }, {
            {name = 'buffer'},
            })
          '';
        };
        performance = {
          debounce = 60;
          fetching_timeout = 200;
          max_view_entries = 30;
        };
        window = {
          completion = {
            border = "rounded";
            winhighlight = "Normal:Normal,FloatBorder:FloatBorder,CursorLine:Visual,Search:None";
          };
          documentation = {
            border = "rounded";
          };
        };
        formatting = {
          fields = ["kind" "abbr" "menu"];
          expandable_indicator = true;
        };
      };
    };
  };
  extraConfigLua = ''
      luasnip = require("luasnip")
      kind_icons = {
        Text = "󰊄",
        Method = "",
        Function = "󰡱",
        Constructor = "",
        Field = "",
        Variable = "󱀍",
        Class = "",
        Interface = "",
        Module = "󰕳",
        Property = "",
        Unit = "",
        Value = "",
        Enum = "",
        Keyword = "",
        Snippet = "",
        Color = "",
        File = "",
        Reference = "",
        Folder = "",
        EnumMember = "",
        Constant = "",
        Struct = "",
        Event = "",
        Operator = "",
        TypeParameter = "",
      } 

    local cmp = require'cmp'

      -- Use buffer source for `/` (if you enabled `native_menu`, this won't work anymore).
      cmp.setup.cmdline({'/', "?" }, {
          sources = {
          { name = 'buffer' }
          }
          })

    -- Set configuration for specific filetype.
      cmp.setup.filetype('gitcommit', {
          sources = cmp.config.sources({
              { name = 'cmp_git' }, -- You can specify the `cmp_git` source if you were installed it.
              }, {
              { name = 'buffer' },
              })
          })

    -- Use cmdline & path source for ':' (if you enabled `native_menu`, this won't work anymore).
      cmp.setup.cmdline(':', {
          sources = cmp.config.sources({
              { name = 'path' }
              }, {
              { name = 'cmdline' }
              }),
          })  '';
}