Add luasnip instead of vsnip

nvim/plugins.lua

@@ -22,11 +22,12 @@ vim.g.windowswap_map_keys=0
 
 local cmp = require('cmp')
 local lspkind = require('lspkind')
+local ls = require('luasnip')
 
 cmp.setup({
   snippet = {
     expand = function(args)
-      vim.fn["vsnip#anonymous"](args.body) -- For `vsnip` users.
+      ls.lsp_expand(args.body)
     end,
   },
 
@@ -35,13 +36,46 @@ cmp.setup({
     documentation = cmp.config.window.bordered(),
   },
 
-  mapping = cmp.mapping.preset.insert({
+  -- mapping = cmp.mapping.preset.insert({
+  --   -- ['<Tab>'] = cmp.mapping.confirm({ select = false }), -- Accept currently selected item. Set `select` to `false` to only confirm explicitly selected items.
+  -- }),
+  mapping = {
     ['<C-b>'] = cmp.mapping.scroll_docs(-4),
     ['<C-f>'] = cmp.mapping.scroll_docs(4),
     ['<C-Space>'] = cmp.mapping.complete(),
     ['<C-e>'] = cmp.mapping.abort(),
-    ['<Tab>'] = cmp.mapping.confirm({ select = false }), -- Accept currently selected item. Set `select` to `false` to only confirm explicitly selected items.
-  }),
+    ['<CR>'] = cmp.mapping(function(fallback)
+        if cmp.visible() then
+            if ls.expandable() then
+                ls.expand()
+            else
+                cmp.confirm({
+                    select = true,
+                })
+            end
+        else
+            fallback()
+        end
+    end),
+    ["<Tab>"] = cmp.mapping(function(fallback)
+      if cmp.visible() then
+        cmp.select_next_item()
+      elseif ls.locally_jumpable(1) then
+        ls.jump(1)
+      else
+        fallback()
+      end
+    end, { "i", "s" }),
+    ["<S-Tab>"] = cmp.mapping(function(fallback)
+      if cmp.visible() then
+        cmp.select_prev_item()
+      elseif ls.locally_jumpable(-1) then
+        ls.jump(-1)
+      else
+        fallback()
+      end
+    end, { "i", "s" }),
+  },
 
   sources = cmp.config.sources({
     { name = 'nvim_lsp', priority = 1000 },
@@ -50,7 +84,7 @@ cmp.setup({
     { name = 'path', priority = 600 },
     { name = 'cmp_yanky', priority = 500 },
     { name = 'git', priority = 400 },
-    { name = 'vsnip', priority = 300 },
+    { name = 'luasnip', priority = 300 },
     { name = 'nvim_lua', priority = 200 },
   }),