use a cmp-fork for now

Until cmp is maintained again or switch??

README.md

@@ -84,6 +84,7 @@ and how to set up on different platforms (Linux, macOS, and Windows).
 + Tags navigation via [vista](https://github.com/liuchengxu/vista.vim).
 + Code formatting via [Neoformat](https://github.com/sbdchd/neoformat).
 + Undo management via [vim-mundo](https://github.com/simnalamburt/vim-mundo)
++ Code folding with [nvim-ufo](https://github.com/kevinhwang91/nvim-ufo) and [statuscol.nvim](https://github.com/luukvbaal/statuscol.nvim)
 + ......
 
 # UI Demo
@@ -140,6 +141,12 @@ Go to a string starting with `se`
 <img src="https://user-images.githubusercontent.com/16662357/128589873-aadb8264-1098-4834-9876-fa66a309be05.gif" width="800">
 </p>
 
+## code folding with nvim-ufo and statuscol.nvim
+
+<p align="center">
+<img src="https://github.com/user-attachments/assets/a01a56b2-7c91-43de-b305-f2fbaa81dcec" width="800">
+</p>
+
 # Shortcuts
 
 Some of the shortcuts I use frequently are listed here. In the following shortcuts, `<leader>` represents ASCII character `,`.
@@ -165,12 +172,14 @@ Some of the shortcuts I use frequently are listed here. In the following shortcu
 | `<space>t`        | Normal        | Linux/macOS/Win | Toggle tag window (show project tags in the right window)                |
 | `<leader>gs`      | Normal        | Linux/macOS/Win | Show Git status result                                                   |
 | `<leader>gw`      | Normal        | Linux/macOS/Win | Run Git add for current file                                             |
-| `<leader>gd`      | Normal        | Linux/macOS/Win | Run git diff for current file                                            |
 | `<leader>gc`      | Normal        | Linux/macOS/Win | Run git commit                                                           |
 | `<leader>gpl`     | Normal        | Linux/macOS/Win | Run git pull                                                             |
 | `<leader>gpu`     | Normal        | Linux/macOS/Win | Run git push                                                             |
+| `<leader>gbd`     | Normal        | Linux/macOS/Win | Delete a branch                                                          |
+| `<leader>gbn`     | Normal        | Linux/macOS/Win | Create a new branch                                                      |
 | `<leader>gl`      | Normal/Visual | Linux/macOS/Win | Get perm link for current/visually-select lines                          |
-| `<leader>gb`      | Normal        | macOS           | Browse current git repo in browser                                       |
+| `<leader>gbr`     | Normal        | macOS           | Browse current git repo in browser                                       |
+| `<leader>gb`      | Visual        | macOS           | Blame current line                                                       |
 | `<F9>`            | Normal        | Linux/macOS/Win | Compile&run current source file (for C++, LaTeX, Lua, Python)            |
 | `<F11>`           | Normal        | Linux/macOS/Win | Toggle spell checking                                                    |
 | `<F12>`           | Normal        | Linux/macOS/Win | Toggle paste mode                                                        |
@@ -191,11 +200,12 @@ Some of the shortcuts I use frequently are listed here. In the following shortcu
 
 In addition to commands provided by various plugins, I have also created some custom commands for personal use.
 
-| command    | description                                                             | example                        |
+| command      | description                                                             | example                        |
-|------------|-------------------------------------------------------------------------|--------------------------------|
+|--------------|-------------------------------------------------------------------------|--------------------------------|
-| `Redir`    | capture command output to a tabpage for easier inspection.              | `Redir hi`                     |
+| `Redir`      | capture command output to a tabpage for easier inspection.              | `Redir hi`                     |
-| `Edit`     | edit multiple files at the same time, supports globing                  | `Edit *.vim`                   |
+| `Edit`       | edit multiple files at the same time, supports globing                  | `Edit *.vim`                   |
-| `Datetime` | print current date and time or convert Unix time stamp to date and time | `Datetime 12345` or `Datetime` |
+| `Datetime`   | print current date and time or convert Unix time stamp to date and time | `Datetime 12345` or `Datetime` |
+| `JSONFormat` | format a JSON file                                                      | `JSONFormat`                   |
 
 # Contributing
 

after/ftplugin/json.vim

@@ -1,6 +0,0 @@
-" let the initial folding state be that all folds are closed.
-set foldlevel=0
-
-" Use nvim-treesitter for folding
-set foldmethod=expr
-set foldexpr=nvim_treesitter#foldexpr()

init.lua

@@ -11,46 +11,23 @@
 -- StackOverflow: https://stackoverflow.com/users/6064933/jdhao
 vim.loader.enable()
 
-local version = vim.version
+local utils = require("utils")
 
--- check if we have the latest stable version of nvim
+local expected_version = "0.10.1"
-local expected_ver_str = "0.10.1"
+utils.is_compatible_version(expected_version)
-local expect_ver = version.parse(expected_ver_str)
-local actual_ver = vim.version()
 
-if expect_ver == nil then
+local config_dir = vim.fn.stdpath("config")
-  local msg = string.format("Unsupported version string: %s", expected_ver_str)
+---@cast config_dir string
-  vim.api.nvim_err_writeln(msg)
-  return
-end
 
-local result = version.cmp(expect_ver, actual_ver)
+-- some global settings
-
+require("globals")
-if  result ~= 0 then
+-- setting options in nvim
-  local _ver = string.format("%s.%s.%s", actual_ver.major, actual_ver.minor, actual_ver.patch)
+vim.cmd("source " .. vim.fs.joinpath(config_dir, "viml_conf/options.vim"))
-  local msg = string.format("Expect nvim %s, but got %s instead. Use at your own risk!", expected_ver_str, _ver)
+-- various autocommands
-  vim.api.nvim_err_writeln(msg)
+require("custom-autocmd")
-end
+-- all the user-defined mappings
-
+require("mappings")
-local core_conf_files = {
+-- all the plugins installed and their configurations
-  "globals.lua", -- some global settings
+vim.cmd("source ".. vim.fs.joinpath(config_dir, "viml_conf/plugins.vim"))
-  "options.vim", -- setting options in nvim
+-- colorscheme settings
-  "autocommands.vim", -- various autocommands
+require("colorschemes")
-  "mappings.lua", -- all the user-defined mappings
-  "plugins.vim", -- all the plugins installed and their configurations
-  "colorschemes.lua", -- colorscheme settings
-}
-
-local viml_conf_dir = vim.fn.stdpath("config") .. "/viml_conf"
--- source all the core config files
-for _, file_name in ipairs(core_conf_files) do
-  if vim.endswith(file_name, 'vim') then
-    local path = string.format("%s/%s", viml_conf_dir, file_name)
-    local source_cmd = "source " .. path
-    vim.cmd(source_cmd)
-  else
-    local module_name, _ = string.gsub(file_name, "%.lua", "")
-    package.loaded[module_name] = nil
-    require(module_name)
-  end
-end

lua/config/bufferline.lua

@@ -1,6 +1,6 @@
 require("bufferline").setup {
   options = {
-    numbers = "buffer_id",
+    numbers = "none",
     close_command = "bdelete! %d",
     right_mouse_command = nil,
     left_mouse_command = "buffer %d",
@@ -44,3 +44,7 @@ require("bufferline").setup {
     sort_by = "id",
   },
 }
+
+vim.keymap.set("n", "<space>bp", "<cmd>BufferLinePick<CR>", {
+  desc = "pick a buffer",
+})

lua/config/fugitive.lua

@@ -1,12 +1,27 @@
 local keymap = vim.keymap
 
-keymap.set("n", "<leader>gs", "<cmd>Git<cr>", { desc = "Git status" })
+keymap.set("n", "<leader>gs", "<cmd>Git<cr>", { desc = "Git: show status" })
-keymap.set("n", "<leader>gw", "<cmd>Gwrite<cr>", { desc = "Git add" })
+keymap.set("n", "<leader>gw", "<cmd>Gwrite<cr>", { desc = "Git: add file" })
-keymap.set("n", "<leader>gc", "<cmd>Git commit<cr>", { desc = "Git commit" })
+keymap.set("n", "<leader>gc", "<cmd>Git commit<cr>", { desc = "Git: commit changes" })
-keymap.set("n", "<leader>gd", "<cmd>Gdiffsplit<cr>", { desc = "Git diff" })
+keymap.set("n", "<leader>gpl", "<cmd>Git pull<cr>", { desc = "Git: pull changes" })
-keymap.set("n", "<leader>gpl", "<cmd>Git pull<cr>", { desc = "Git pull" })
+keymap.set("n", "<leader>gpu", "<cmd>15 split|term git push<cr>", { desc = "Git: push changes" })
-keymap.set("n", "<leader>gpu", "<cmd>15 split|term git push<cr>", { desc = "Git push" })
+keymap.set("v", "<leader>gb", ":Git blame<cr>", { desc = "Git: blame selected line" })
-keymap.set("v", "<leader>gb", ":Git blame<cr>", { desc = "Git blame line" })
 
 -- convert git to Git in command line mode
 vim.fn["utils#Cabbrev"]("git", "Git")
+
+keymap.set("n", "<leader>gbn", function()
+  vim.ui.input({ prompt = "Enter a new branch name" }, function(user_input)
+    if user_input == nil or user_input == "" then
+      return
+    end
+
+    local cmd_str = string.format("G checkout -b %s", user_input)
+    vim.cmd(cmd_str)
+  end)
+end, {
+  desc = "Git: create new branch",
+})
+
+keymap.set("n", "<leader>gf", ":Git fetch ", { desc = "Git: prune branches" })
+keymap.set("n", "<leader>gbd", ":Git branch -D ", { desc = "Git: delete branch" })

lua/config/git-linker.lua

@@ -24,14 +24,14 @@ keymap.set({ "n", "v" }, "<leader>gl", function()
   gitlinker.get_buf_range_url(mode)
 end, {
   silent = true,
-  desc = "get git permlink",
+  desc = "Git: get permlink",
 })
 
-keymap.set("n", "<leader>gb", function()
+keymap.set("n", "<leader>gbr", function()
   gitlinker.get_repo_url({
     action_callback = gitlinker.actions.open_in_browser
   })
 end, {
   silent = true,
-  desc = "browse repo in browser",
+  desc = "Git: browse repo in browser",
 })

lua/config/hlslens.lua

@@ -35,33 +35,48 @@ keymap.set("n", "N", "", {
   end,
 })
 
-local no_word_under_cursor = function()
+local check_cursor_word = function()
   local cursor_word = vim.fn.expand("<cword>")
-
   local result = cursor_word == ""
   if result then
     local msg = "E348: No string under cursor"
     api.nvim_err_writeln(msg)
   end
 
-  return result
+  return result, cursor_word
 end
 
 keymap.set("n", "*", "", {
   callback = function()
-    if no_word_under_cursor() then
+    local cursor_word_empty, cursor_word = check_cursor_word()
+    if cursor_word_empty then
       return
     end
-    vim.fn.execute("normal! *N")
+
+    local cmd = string.format([[normal! /\v<%s>]], cursor_word)
+
+    -- In order to say that we are pressing Enter key, instead of typing literally the character,
+    -- we need to replace special notation with their internal representation.
+    local escaped_enter = vim.api.nvim_replace_termcodes("<CR>", true, false, true)
+
+    -- character `N` is used to keep the cursor when pressing `*`
+    local full_cmd = cmd .. escaped_enter .. "N"
+    vim.fn.execute(full_cmd)
     hlslens.start()
   end,
 })
 keymap.set("n", "#", "", {
   callback = function()
-    if no_word_under_cursor() then
+    local cursor_word_empty, cursor_word = check_cursor_word()
+    if cursor_word_empty then
       return
     end
-    vim.fn.execute("normal! #N")
+
+    local cmd = string.format([[normal! ?\v<%s>]], cursor_word)
+    local escaped_enter = vim.api.nvim_replace_termcodes("<CR>", true, false, true)
+
+    local full_cmd = cmd .. escaped_enter .. "N"
+    vim.fn.execute(full_cmd)
     hlslens.start()
   end,
 })

lua/config/live-command.lua

@@ -0,0 +1,4 @@
+require("live-command").setup {
+  enable_highlighting = true,
+  inline_highlighting = true,
+}

lua/config/lsp.lua

@@ -43,7 +43,7 @@ local custom_attach = function(client, bufnr)
   map("n", "<space>wa", vim.lsp.buf.add_workspace_folder, { desc = "add workspace folder" })
   map("n", "<space>wr", vim.lsp.buf.remove_workspace_folder, { desc = "remove workspace folder" })
   map("n", "<space>wl", function()
-    inspect(vim.lsp.buf.list_workspace_folders())
+    vim.print(vim.lsp.buf.list_workspace_folders())
   end, { desc = "list workspace folder" })
 
   -- Set some key bindings conditional on server capabilities
@@ -110,6 +110,11 @@ local custom_attach = function(client, bufnr)
 end
 
 local capabilities = require('cmp_nvim_lsp').default_capabilities()
+-- required by nvim-ufo
+capabilities.textDocument.foldingRange = {
+    dynamicRegistration = false,
+    lineFoldingOnly = true
+}
 
 local lspconfig = require("lspconfig")
 
@@ -225,22 +230,6 @@ if utils.executable("lua-language-server") then
           -- Tell the language server which version of Lua you're using (most likely LuaJIT in the case of Neovim)
           version = "LuaJIT",
         },
-        diagnostics = {
-          -- Get the language server to recognize the `vim` global
-          globals = { "vim" },
-        },
-        workspace = {
-          -- Make the server aware of Neovim runtime files,
-          -- see also https://luals.github.io/wiki/settings/#workspacelibrary
-          library = {
-            vim.env.VIMRUNTIME,
-            fn.stdpath("config"),
-            -- make lua_ls aware of functions under vim.uv
-            "${3rd}/luv/library"
-          },
-          maxPreload = 2000,
-          preloadFileSize = 50000,
-        },
       },
     },
     capabilities = capabilities,

lua/config/nvim-cmp.lua

@@ -35,7 +35,6 @@ cmp.setup {
     { name = "ultisnips" }, -- For ultisnips user.
     { name = "path" }, -- for path completion
     { name = "buffer", keyword_length = 2 }, -- for buffer word completion
-    { name = "emoji", insert = true }, -- emoji completion
   },
   completion = {
     keyword_length = 1,
@@ -50,12 +49,14 @@ cmp.setup {
       menu = {
         nvim_lsp = "[LSP]",
         ultisnips = "[US]",
-        nvim_lua = "[Lua]",
         path = "[Path]",
         buffer = "[Buffer]",
         emoji = "[Emoji]",
         omni = "[Omni]",
       },
+      show_labelDetails = true,
+      maxwidth = 40,
+      ellipsis_char = "...",
     },
   },
 }

lua/config/nvim-statuscol.lua

@@ -0,0 +1,23 @@
+local builtin = require("statuscol.builtin")
+local ffi = require("statuscol.ffidef")
+local C = ffi.C
+
+-- only show fold level up to this level
+local fold_level_limit = 2
+local function foldfunc(args)
+  local foldinfo = C.fold_info(args.wp, args.lnum)
+  if foldinfo.level > fold_level_limit then
+    return " "
+  end
+
+  return builtin.foldfunc(args)
+end
+
+require("statuscol").setup {
+  relculright = false,
+  segments = {
+    { text = { "%s" }, click = "v:lua.ScSa" },
+    { text = { builtin.lnumfunc, " " }, click = "v:lua.ScLa" },
+    { text = { foldfunc, " " }, condition = { true, builtin.not_empty }, click = "v:lua.ScFa" },
+  },
+}

lua/config/nvim_ufo.lua

@@ -30,10 +30,9 @@ local handler = function(virtText, lnum, endLnum, width, truncate)
   return newVirtText
 end
 
-local opts = {}
+require("ufo").setup {
-opts["fold_virt_text_handler"] = handler
+  fold_virt_text_handler = handler,
-
+}
-require("ufo").setup(opts)
 
 vim.keymap.set("n", "zR", require("ufo").openAllFolds)
 vim.keymap.set("n", "zM", require("ufo").closeAllFolds)

lua/config/yanky.lua

@@ -1,13 +1,17 @@
-require("yanky").setup({
+require("yanky").setup {
-  ring = {
-    history_length = 50,
-    storage = "memory",
-  },
   preserve_cursor_position = {
     enabled = false,
   },
-})
+  highlight = {
+    on_put = true,
+    on_yank = false,
+    timer = 300,
+  },
+}
+
+vim.keymap.set({ "n", "x" }, "p", "<Plug>(YankyPutAfter)")
+vim.keymap.set({ "n", "x" }, "P", "<Plug>(YankyPutBefore)")
 
 -- cycle through the yank history, only work after paste
-vim.keymap.set("n", "[y", "<Plug>(YankyCycleForward)")
+vim.keymap.set("n", "[y", "<Plug>(YankyPreviousEntry)")
-vim.keymap.set("n", "]y", "<Plug>(YankyCycleBackward)")
+vim.keymap.set("n", "]y", "<Plug>(YankyNextEntry)")

lua/config/zen-mode.lua

@@ -1,15 +0,0 @@
-require("zen-mode").setup {
-  window = {
-    backdrop = 0.8, -- shade the backdrop of the Zen window. Set to 1 to keep the same as Normal
-    width = 120,
-    options = {
-      -- signcolumn = "no", -- disable signcolumn
-      -- number = false, -- disable number column
-      -- relativenumber = false, -- disable relative numbers
-      cursorline = false, -- disable cursorline
-      cursorcolumn = false, -- disable cursor column
-      foldcolumn = "0", -- disable fold column
-      list = false, -- disable whitespace characters
-    },
-  },
-}

lua/custom-autocmd.lua

@@ -38,8 +38,8 @@ api.nvim_create_autocmd("TextYankPost", {
   pattern = "*",
   group = yank_group,
   callback = function(ev)
-    if vim.v.event.operator == 'y' then
+    if vim.v.event.operator == "y" then
-      vim.fn.setpos('.', vim.g.current_cursor_pos)
+      vim.fn.setpos(".", vim.g.current_cursor_pos)
     end
   end,
 })
@@ -102,4 +102,174 @@ local function open_nvim_tree(data)
   require("nvim-tree.api").tree.open()
 end
 
-vim.api.nvim_create_autocmd({ "VimEnter" }, { callback = open_nvim_tree })
+api.nvim_create_autocmd({ "VimEnter" }, { callback = open_nvim_tree })
+
+-- Do not use smart case in command line mode, extracted from https://vi.stackexchange.com/a/16511/15292.
+api.nvim_create_augroup("dynamic_smartcase", { clear = true })
+api.nvim_create_autocmd("CmdLineEnter", {
+  group = "dynamic_smartcase",
+  pattern = ":",
+  callback = function()
+    vim.o.smartcase = false
+  end,
+})
+
+api.nvim_create_autocmd("CmdLineLeave", {
+  group = "dynamic_smartcase",
+  pattern = ":",
+  callback = function()
+    vim.o.smartcase = true
+  end,
+})
+
+api.nvim_create_autocmd("TermOpen", {
+  group = api.nvim_create_augroup("term_start", { clear = true }),
+  pattern = "*",
+  callback = function()
+    -- Do not use number and relative number for terminal inside nvim
+    vim.wo.relativenumber = false
+    vim.wo.number = false
+
+    -- Go to insert mode by default to start typing command
+    vim.cmd("startinsert")
+  end,
+})
+
+-- Return to last cursor position when opening a file, note that here we cannot use BufReadPost
+-- as event. It seems that when BufReadPost is triggered, FileType event is still not run.
+-- So the filetype for this buffer is empty string.
+api.nvim_create_autocmd("FileType", {
+  group = api.nvim_create_augroup("resume_cursor_position", { clear = true }),
+  pattern = "*",
+  callback = function(ev)
+    local mark_pos = api.nvim_buf_get_mark(ev.buf, '"')
+    local last_cursor_line = mark_pos[1]
+
+    local max_line = vim.fn.line("$")
+    local buf_filetype = api.nvim_get_option_value("filetype", { buf = ev.buf })
+    local buftype = api.nvim_get_option_value("buftype", { buf = ev.buf })
+
+    -- only handle normal files
+    if buf_filetype == "" or buftype ~= "" then
+      return
+    end
+
+    -- Only resume last cursor position when there is no go-to-line command (something like '+23').
+    if vim.fn.match(vim.v.argv, [[\v^\+(\d){1,}$]]) ~= -1 then
+      return
+    end
+
+    if last_cursor_line > 1 and last_cursor_line <= max_line then
+      -- vim.print(string.format("mark_pos: %s", vim.inspect(mark_pos)))
+      -- it seems that without vim.schedule, the cursor position can not be set correctly
+      vim.schedule(function()
+        local status, result = pcall(api.nvim_win_set_cursor, 0, mark_pos)
+        if not status then
+          api.nvim_err_writeln(string.format("Failed to resume cursor position. Context %s, error: %s",
+          vim.inspect(ev), result))
+        end
+      end)
+      -- the following two ways also seem to work,
+      -- ref: https://www.reddit.com/r/neovim/comments/104lc26/how_can_i_press_escape_key_using_lua/
+      -- vim.api.nvim_feedkeys("g`\"", "n", true)
+      -- vim.fn.execute("normal! g`\"")
+    end
+  end,
+})
+
+local number_toggle_group = api.nvim_create_augroup("numbertoggle", { clear = true })
+api.nvim_create_autocmd({ "BufEnter", "FocusGained", "InsertLeave", "WinEnter" }, {
+  pattern = "*",
+  group = number_toggle_group,
+  desc = "togger line number",
+  callback = function()
+    if vim.wo.number then
+      vim.wo.relativenumber = true
+    end
+  end,
+})
+
+api.nvim_create_autocmd({ "BufLeave", "FocusLost", "InsertEnter", "WinLeave" }, {
+  group = number_toggle_group,
+  desc = "togger line number",
+  callback = function()
+    if vim.wo.number then
+      vim.wo.relativenumber = false
+    end
+  end,
+})
+
+api.nvim_create_autocmd("ColorScheme", {
+  group = api.nvim_create_augroup("custom_highlight", { clear = true }),
+  pattern = "*",
+  desc = "Define or overrride some highlight groups",
+  callback = function()
+    vim.cmd([[
+      " For yank highlight
+      highlight YankColor ctermfg=59 ctermbg=41 guifg=#34495E guibg=#2ECC71
+
+      " For cursor colors
+      highlight Cursor cterm=bold gui=bold guibg=#00c918 guifg=black
+      highlight Cursor2 guifg=red guibg=red
+
+      " For floating windows border highlight
+      highlight FloatBorder guifg=LightGreen guibg=NONE
+
+      " highlight for matching parentheses
+      highlight MatchParen cterm=bold,underline gui=bold,underline
+    ]])
+  end,
+})
+
+api.nvim_create_autocmd("BufEnter", {
+  pattern = "*",
+  group = api.nvim_create_augroup("auto_close_win", { clear = true }),
+  desc = "Quit Nvim if we have only one window, and its filetype match our pattern",
+  callback = function(ev)
+    local quit_filetypes = {'qf', 'vista', 'NvimTree'}
+
+    local should_quit = true
+    local tabwins = api.nvim_tabpage_list_wins(0)
+
+    for _, win in pairs(tabwins) do
+      local buf = api.nvim_win_get_buf(win)
+      local bf = fn.getbufvar(buf, '&filetype')
+
+      if fn.index(quit_filetypes, bf) == -1 then
+        should_quit = false
+      end
+    end
+
+    if should_quit then
+      vim.cmd("qall")
+    end
+  end
+})
+
+api.nvim_create_autocmd({"VimEnter", "DirChanged"}, {
+  group = api.nvim_create_augroup("git_repo_check", { clear = true }),
+  pattern = "*",
+  desc = "check if we are inside Git repo",
+  command = "call utils#Inside_git_repo()"
+})
+
+-- ref: https://vi.stackexchange.com/a/169/15292
+api.nvim_create_autocmd("BufReadPre", {
+  group = api.nvim_create_augroup("large_file", { clear = true }),
+  pattern = "*",
+  desc = "check if we are inside Git repo",
+  callback = function (ev)
+    local file_size_limit =524288 -- 0.5MB
+    local f = ev.file
+
+    if fn.getfsize(f) > file_size_limit or fn.getfsize(f) == -2 then
+      vim.o.eventignore = "all"
+      --  turning off relative number helps a lot
+      vim.wo.relativenumber = false
+
+      vim.bo.swapfile = false
+      vim.bo.bufhidden = "unload"
+      vim.bo.undolevels = -1
+    end
+  end
+})

lua/globals.lua

@@ -3,11 +3,6 @@ local api = vim.api
 
 local utils = require('utils')
 
--- Inspect something
-function _G.inspect(item)
-  vim.print(item)
-end
-
 ------------------------------------------------------------------------
 --                          custom variables                          --
 ------------------------------------------------------------------------

lua/mappings.lua

@@ -45,7 +45,21 @@ keymap.set("n", [[\x]], "<cmd>windo lclose <bar> cclose <cr>", {
 -- Delete a buffer, without closing the window, see https://stackoverflow.com/q/4465095/6064933
 keymap.set("n", [[\d]], "<cmd>bprevious <bar> bdelete #<cr>", {
   silent = true,
-  desc = "delete buffer",
+  desc = "delete current buffer",
+})
+
+keymap.set("n", [[\D]], function()
+  local buf_ids = vim.api.nvim_list_bufs()
+  local cur_buf = vim.api.nvim_win_get_buf(0)
+
+  for _, buf_id in pairs(buf_ids) do
+    -- do not Delete unlisted buffers, which may lead to unexpected errors
+    if vim.api.nvim_get_option_value("buflisted", { buf = buf_id }) and buf_id ~= cur_buf then
+      vim.api.nvim_buf_delete(buf_id, { force = true })
+    end
+  end
+end, {
+  desc = "delete other buffers",
 })
 
 -- Insert a blank line below or above current line (do not move the cursor),
@@ -218,18 +232,20 @@ keymap.set("n", "<leader>cb", function()
     return
   end
 
-  timer:start(0, 100, vim.schedule_wrap(function()
+  timer:start(
-    vim.cmd [[
+    0,
+    100,
+    vim.schedule_wrap(function()
+      vim.cmd([[
       set cursorcolumn!
       set cursorline!
-    ]]
+    ]])
 
-    if cnt == blink_times then
+      if cnt == blink_times then
-      timer:close()
+        timer:close()
-    end
+      end
 
-    cnt = cnt + 1
+      cnt = cnt + 1
-  end)
+    end)
   )
-end,
+end, { desc = "show cursor" })
-  { desc = "show cursor" })

lua/plugin_specs.lua

@@ -23,7 +23,8 @@ end
 local plugin_specs = {
   -- auto-completion engine
   {
-    "hrsh7th/nvim-cmp",
+    "iguanacucumber/magazine.nvim",
+    name = "nvim-cmp",
     -- event = 'InsertEnter',
     event = "VeryLazy",
     dependencies = {
@@ -32,14 +33,12 @@ local plugin_specs = {
       "hrsh7th/cmp-path",
       "hrsh7th/cmp-buffer",
       "hrsh7th/cmp-omni",
-      "hrsh7th/cmp-emoji",
       "quangnguyen30192/cmp-nvim-ultisnips",
     },
     config = function()
       require("config.nvim-cmp")
     end,
   },
-
   {
     "neovim/nvim-lspconfig",
     event = { "BufRead", "BufNewFile" },
@@ -63,9 +62,6 @@ local plugin_specs = {
     end,
   },
 
-  -- Python indent (follows the PEP8 style)
-  { "Vimjas/vim-python-pep8-indent", ft = { "python" } },
-
   -- Python-related text object
   { "jeetsukumaran/vim-pythonsense", ft = { "python" } },
 
@@ -126,6 +122,15 @@ local plugin_specs = {
       "nvim-telescope/telescope-symbols.nvim",
     },
   },
+  {
+    "ibhagwan/fzf-lua",
+    -- optional for icon support
+    dependencies = { "nvim-tree/nvim-web-devicons" },
+    config = function()
+      -- calling `setup` is optional for customization
+      require("fzf-lua").setup {}
+    end,
+  },
   {
     "MeanderingProgrammer/markdown.nvim",
     main = "render-markdown",
@@ -156,7 +161,7 @@ local plugin_specs = {
     event = "VeryLazy",
     cond = firenvim_not_active,
     config = function()
-      require("config.statusline")
+      require("config.lualine")
     end,
   },
 
@@ -190,15 +195,7 @@ local plugin_specs = {
     "luukvbaal/statuscol.nvim",
     opts = {},
     config = function()
-      local builtin = require("statuscol.builtin")
+      require("config.nvim-statuscol")
-      require("statuscol").setup {
-        relculright = true,
-        segments = {
-          { text = { "%s" }, click = "v:lua.ScSa" },
-          { text = { builtin.lnumfunc, " " }, click = "v:lua.ScLa" },
-          { text = { builtin.foldfunc, " " }, condition = {true, builtin.not_empty}, click = "v:lua.ScFa" },
-        },
-      }
     end,
   },
   {
@@ -231,7 +228,12 @@ local plugin_specs = {
   -- For Windows and Mac, we can open an URL in the browser. For Linux, it may
   -- not be possible since we maybe in a server which disables GUI.
   {
-    "tyru/open-browser.vim",
+    "chrishrb/gx.nvim",
+    keys = { { "gx", "<cmd>Browse<cr>", mode = { "n", "x" } } },
+    cmd = { "Browse" },
+    init = function()
+      vim.g.netrw_nogx = 1 -- disable netrw gx
+    end,
     enabled = function()
       if vim.g.is_win or vim.g.is_mac then
         return true
@@ -239,7 +241,9 @@ local plugin_specs = {
         return false
       end
     end,
-    event = "VeryLazy",
+    dependencies = { "nvim-lua/plenary.nvim" },
+    config = true, -- default settings
+    submodules = false, -- not needed, submodules are required only for tests
   },
 
   -- Only install these plugins if ctags are installed on the system
@@ -286,10 +290,10 @@ local plugin_specs = {
   -- Manage your yank history
   {
     "gbprod/yanky.nvim",
-    cmd = { "YankyRingHistory" },
     config = function()
       require("config.yanky")
     end,
+    event = "VeryLazy",
   },
 
   -- Handy unix command inside Vim (Rename, Move etc.)
@@ -390,14 +394,6 @@ local plugin_specs = {
     ft = { "markdown" },
   },
 
-  {
-    "folke/zen-mode.nvim",
-    cmd = "ZenMode",
-    config = function()
-      require("config.zen-mode")
-    end,
-  },
-
   {
     "rhysd/vim-grammarous",
     enabled = function()
@@ -449,7 +445,7 @@ local plugin_specs = {
 
   -- Modern matchit implementation
   { "andymass/vim-matchup", event = "BufRead" },
-  { "tpope/vim-scriptease", cmd = { "Scriptnames", "Message", "Verbose" } },
+  { "tpope/vim-scriptease", cmd = { "Scriptnames", "Messages", "Verbose" } },
 
   -- Asynchronous command execution
   { "skywind3000/asyncrun.vim", lazy = true, cmd = { "AsyncRun" } },
@@ -542,6 +538,41 @@ local plugin_specs = {
       require("config.fidget-nvim")
     end,
   },
+  {
+    "folke/lazydev.nvim",
+    ft = "lua", -- only load on lua files
+    opts = {},
+  },
+  {
+    "CopilotC-Nvim/CopilotChat.nvim",
+    branch = "canary",
+    dependencies = {
+      { "zbirenbaum/copilot.lua" }, -- or github/copilot.vim
+      { "nvim-lua/plenary.nvim" }, -- for curl, log wrapper
+    },
+    opts = {
+      debug = true, -- Enable debugging
+      -- See Configuration section for rest
+    },
+    -- See Commands section for default commands if you want to lazy load on them
+  },
+  {
+    "zbirenbaum/copilot.lua",
+    cmd = "Copilot",
+    config = function()
+      require("copilot").setup {}
+    end,
+  },
+  {
+    "smjonas/live-command.nvim",
+    -- live-command supports semantic versioning via Git tags
+    -- tag = "2.*",
+    cmd = "Preview",
+    config = function()
+      require("config.live-command")
+    end,
+    event = "VeryLazy",
+  },
 }
 
 require("lazy").setup {

lua/utils.lua

@@ -1,4 +1,5 @@
 local fn = vim.fn
+local version = vim.version
 
 local M = {}
 
@@ -50,4 +51,32 @@ function M.rand_element(seq)
   return seq[idx]
 end
 
+--- check if the current nvim version is compatible with the allowed version
+--- @param expected_version string
+--- @return boolean
+function M.is_compatible_version(expected_version)
+  -- check if we have the latest stable version of nvim
+  local expect_ver = version.parse(expected_version)
+  local actual_ver = vim.version()
+
+  if expect_ver == nil then
+    local msg = string.format("Unsupported version string: %s", expected_version)
+    vim.api.nvim_err_writeln(msg)
+    return false
+  end
+
+  local result = version.cmp(expect_ver, actual_ver)
+  if result ~= 0 then
+    local _ver = string.format("%s.%s.%s", actual_ver.major, actual_ver.minor, actual_ver.patch)
+    local msg = string.format(
+      "Expect nvim version %s, but your current nvim version is %s. Use at your own risk!",
+      expected_version,
+      _ver
+    )
+    vim.api.nvim_err_writeln(msg)
+  end
+
+  return true
+end
+
 return M

viml_conf/autocommands.vim

@@ -1,123 +0,0 @@
-" Do not use smart case in command line mode, extracted from https://vi.stackexchange.com/a/16511/15292.
-augroup dynamic_smartcase
-  autocmd!
-  autocmd CmdLineEnter : set nosmartcase
-  autocmd CmdLineLeave : set smartcase
-augroup END
-
-augroup term_settings
-  autocmd!
-  " Do not use number and relative number for terminal inside nvim
-  autocmd TermOpen * setlocal norelativenumber nonumber
-  " Go to insert mode by default to start typing command
-  autocmd TermOpen * startinsert
-augroup END
-
-" More accurate syntax highlighting? (see `:h syn-sync`)
-augroup accurate_syn_highlight
-  autocmd!
-  autocmd BufEnter * :syntax sync fromstart
-augroup END
-
-" Return to last cursor position when opening a file
-augroup resume_cursor_position
-  autocmd!
-  autocmd BufReadPost * call s:resume_cursor_position()
-augroup END
-
-" Only resume last cursor position when there is no go-to-line command (something like '+23').
-function s:resume_cursor_position() abort
-  if line("'\"") > 1 && line("'\"") <= line("$") && &ft !~# 'commit'
-    let l:args = v:argv  " command line arguments
-    for l:cur_arg in l:args
-      " Check if a go-to-line command is given.
-      let idx = match(l:cur_arg, '\v^\+(\d){1,}$')
-      if idx != -1
-        return
-      endif
-    endfor
-
-    execute "normal! g`\"zvzz"
-  endif
-endfunction
-
-augroup numbertoggle
-  autocmd!
-  autocmd BufEnter,FocusGained,InsertLeave,WinEnter * if &nu | set rnu   | endif
-  autocmd BufLeave,FocusLost,InsertEnter,WinLeave   * if &nu | set nornu | endif
-augroup END
-
-" Define or override some highlight groups
-augroup custom_highlight
-  autocmd!
-  autocmd ColorScheme * call s:custom_highlight()
-augroup END
-
-function! s:custom_highlight() abort
-  " For yank highlight
-  highlight YankColor ctermfg=59 ctermbg=41 guifg=#34495E guibg=#2ECC71
-
-  " For cursor colors
-  highlight Cursor cterm=bold gui=bold guibg=#00c918 guifg=black
-  highlight Cursor2 guifg=red guibg=red
-
-  " For floating windows border highlight
-  highlight FloatBorder guifg=LightGreen guibg=NONE
-
-  " highlight for matching parentheses
-  highlight MatchParen cterm=bold,underline gui=bold,underline
-endfunction
-
-augroup auto_close_win
-  autocmd!
-  autocmd BufEnter * call s:quit_current_win()
-augroup END
-
-" Quit Nvim if we have only one window, and its filetype match our pattern.
-function! s:quit_current_win() abort
-  let l:quit_filetypes = ['qf', 'vista', 'NvimTree']
-
-  let l:should_quit = v:true
-
-  let l:tabwins = nvim_tabpage_list_wins(0)
-  for w in l:tabwins
-    let l:buf = nvim_win_get_buf(w)
-    let l:bf = getbufvar(l:buf, '&filetype')
-
-    if index(l:quit_filetypes, l:bf) == -1
-      let l:should_quit = v:false
-    endif
-  endfor
-
-  if l:should_quit
-    qall
-  endif
-endfunction
-
-augroup git_repo_check
-  autocmd!
-  autocmd VimEnter,DirChanged * call utils#Inside_git_repo()
-augroup END
-
-" ref: https://vi.stackexchange.com/a/169/15292
-function! s:handle_large_file() abort
-  let g:large_file = 10485760 " 10MB
-  let f = expand("<afile>")
-
-  if getfsize(f) > g:large_file || getfsize(f) == -2
-    set eventignore+=all
-    " turning off relative number helps a lot
-    set norelativenumber
-    setlocal noswapfile bufhidden=unload buftype=nowrite undolevels=-1
-  else
-    set eventignore-=all relativenumber
-  endif
-endfunction
-
-augroup LargeFile
-  autocmd!
-  autocmd BufReadPre * call s:handle_large_file()
-augroup END
-
-" Load auto-command defined in Lua
-lua require("custom-autocmd")

viml_conf/options.vim

@@ -121,7 +121,7 @@ set completeopt+=menuone  " Show menu even if there is only one item
 set completeopt-=preview  " Disable the preview window
 
 set pumheight=10  " Maximum number of items to show in popup menu
-set pumblend=10  " pseudo transparency for completion menu
+set pumblend=5  " pseudo transparency for completion menu
 
 set winblend=0  " pseudo transparency for floating window
 

viml_conf/plugins.vim

@@ -113,16 +113,6 @@ let g:Lf_PreviewResult = {
       \ 'Gtags': 0
       \}
 
-""""""""""""""""""""""""""""open-browser.vim settings"""""""""""""""""""
-if g:is_win || g:is_mac
-  " Disable netrw's gx mapping.
-  let g:netrw_nogx = 1
-
-  " Use another mapping for the open URL method
-  nmap ob <Plug>(openbrowser-smart-search)
-  xmap ob <Plug>(openbrowser-smart-search)
-endif
-
 """"""""""""""""""""""""""" vista settings """"""""""""""""""""""""""""""""""
 let g:vista#renderer#icons = {
       \ 'member': '',