* feat(harpoon.lua): add keymaps for navigating between files and toggling quick menu

* feat(keymaps.lua): add keymap for deleting all buffers except current
* feat(nvim-tree.lua): add autocmd to go to last used hidden buffer when deleting a buffer
* chore(init.lua): add ThePrimeagen/harpoon plugin to the list of plugins

* chore(nvim-tree.lua): add missing comma in filters table
* feat(surround.lua): add kylechui/nvim-surround plugin configuration

after/plugin/harpoon.lua

@@ -0,0 +1,8 @@
+local mark = require("harpoon.mark")
+local ui = require("harpoon.ui")
+
+vim.keymap.set("n", "<leader>ha", mark.add_file)
+vim.keymap.set("n", "<C-e>", ui.toggle_quick_menu)
+
+vim.keymap.set("n", "<leader>hn", function() ui.nav_next() end)
+vim.keymap.set("n", "<leader>hp", function() ui.nav_prev() end)

after/plugin/keymaps.lua

@@ -62,5 +62,8 @@ keymap("n", "<leader>x", "<cmd>!chmod +x %<CR>", { silent = true, desc = "Make [
 keymap("n", "Q", "<nop>")
 
 -- Bufdelete.vim
-keymap("n", "<leader>bd", ":Bdelete<CR>", {desc = "[B]uffer [D]elete"})
-keymap("n", "<leader>bw", ":Bwipeout<CR>", {desc = "[B]uffer [W]ipeout"})
+keymap("n", "<leader>bd", ":Bdelete<CR>", { desc = "[B]uffer [D]elete" })
+keymap("n", "<leader>bw", ":Bwipeout<CR>", { desc = "[B]uffer [W]ipeout" })
+
+-- Delete buffer except current
+keymap("n", "<leader>be", ":%bd|e#|bd#<CR>", { silent = true, desc = "[B]uffer Delete [E]xcept" })

after/plugin/nvim-tree.lua

@@ -21,3 +21,23 @@ end
 vim.api.nvim_create_autocmd({"QuitPre"}, {
     callback = function() vim.cmd("NvimTreeClose") end,
 })
+
+-- Go to last used hidden buffer when deleting a buffer
+vim.api.nvim_create_autocmd("BufEnter", {
+  nested = true,
+  callback = function()
+    -- Only 1 window with nvim-tree left: we probably closed a file buffer
+    if #vim.api.nvim_list_wins() == 1 and require("nvim-tree.utils").is_nvim_tree_buf() then
+      local api = require('nvim-tree.api')
+      -- Required to let the close event complete. An error is thrown without this.
+      vim.defer_fn(function()
+        -- close nvim-tree: will go to the last hidden buffer used before closing
+        api.tree.toggle({find_file = true, focus = true})
+        -- re-open nivm-tree
+        api.tree.toggle({find_file = true, focus = true})
+        -- nvim-tree is still the active window. Go to the previous window.
+        vim.cmd("wincmd p")
+      end, 0)
+    end
+  end
+})

lua/custom/plugins/init.lua

@@ -6,4 +6,5 @@ return {
   'fatih/vim-go',
   'mbbill/undotree',
   'famiu/bufdelete.nvim',
+  'ThePrimeagen/harpoon'
 }

lua/custom/plugins/nvim-tree.lua

@@ -7,7 +7,7 @@ return {
         },
         config = function()
             require("nvim-tree").setup {
-                filters = { custom = { "^.git$" } }
+                filters = { custom = { "^.git$" } },
             }
         end,
     }

lua/custom/plugins/surround.lua

@@ -0,0 +1,10 @@
+return {
+    "kylechui/nvim-surround",
+    version = "*", -- Use for stability; omit to use `main` branch for the latest features
+    event = "VeryLazy",
+    config = function()
+        require("nvim-surround").setup({
+            -- Configuration here, or leave empty to use defaults
+        })
+    end
+}