Switch to cmp-nvim

users/modules/neovim/nvim-lsp.nix

@@ -12,7 +12,9 @@ let
     };
   };
   mkLspLangConfig = name: cfg: ''
-    require'lspconfig'["${name}"].setup(require'coq'.lsp_ensure_capabilities(${cfg.script}))
+    local cfg = ${cfg.script}
+    cfg["capabilities"] = require('cmp_nvim_lsp').default_capabilities()
+    require'lspconfig'["${name}"].setup(cfg)
   '';
   mkLspLangConfigs = cfgs: lib.strings.concatStringsSep "\n" ((lib.attrsets.mapAttrsToList mkLspLangConfig cfgs));
 in
@@ -28,13 +30,50 @@ in
   config = mkIf cfg.lsp.enable {
     programs.neovim = {
       plugins = with pkgs.vimPlugins; [
+        nvim-snippy
+        cmp-nvim-lsp
+        cmp-buffer
+        cmp-path
+        cmp-tmux
+        cmp-snippy
         {
-          plugin = coq_nvim;
+          plugin = nvim-cmp;
           config = ''
-            vim.g.coq_settings = { 
+            local cmp = require'cmp'
-              xdg = true,
+
-              auto_start = true
+            cmp.setup({
-              }
+              snippet = {
+                -- REQUIRED - you must specify a snippet engine
+                expand = function(args)
+                  require('snippy').expand_snippet(args.body)
+                end,
+              },
+              window = {},
+              mapping = cmp.mapping.preset.insert({
+                ['<C-b>'] = cmp.mapping.scroll_docs(-4),
+                ['<C-f>'] = cmp.mapping.scroll_docs(4),
+                ['<C-Space>'] = cmp.mapping.complete(),
+                ['<C-e>'] = cmp.mapping.abort(),
+                ['<CR>'] = cmp.mapping.confirm({ select = true }),
+              }),
+              sources = cmp.config.sources({
+                { name = 'nvim_lsp' },
+                { name = 'snippy' }, 
+                { name = 'path' }
+              }, {
+                { name = 'buffer' },
+                { name= 'tmux' }
+              })
+            })
+
+            -- 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' },
+              })
+            })
           '';
           type = "lua";
         }