add plugin lazydev.nvim

Only show fold signs for fold level below a certain level to avoid
clutter the left side columns with a lot of folding signs

README.md

@@ -13,7 +13,7 @@
       <img alt="Latest release" src="https://img.shields.io/github/v/release/jdhao/nvim-config" />
     </a>
     <a href="https://github.com/neovim/neovim/releases/tag/stable">
-      <img src="https://img.shields.io/badge/Neovim-0.9.2-blueviolet.svg?style=flat-square&logo=Neovim&logoColor=green" alt="Neovim minimum version"/>
+      <img src="https://img.shields.io/badge/Neovim-0.10.1-blueviolet.svg?style=flat-square&logo=Neovim&logoColor=green" alt="Neovim minimum version"/>
     </a>
     <a href="https://github.com/jdhao/nvim-config/search?l=vim-script">
       <img src="https://img.shields.io/github/languages/top/jdhao/nvim-config" alt="Top languages"/>
@@ -21,8 +21,8 @@
     <a href="https://github.com/jdhao/nvim-config/graphs/commit-activity">
       <img src="https://img.shields.io/github/commit-activity/m/jdhao/nvim-config?style=flat-square" />
     </a>
-    <a href="https://github.com/jdhao/nvim-config/releases/tag/v0.9.2">
-      <img src="https://img.shields.io/github/commits-since/jdhao/nvim-config/v0.9.2?style=flat-square" />
+    <a href="https://github.com/jdhao/nvim-config/releases/tag/v0.10.0">
+      <img src="https://img.shields.io/github/commits-since/jdhao/nvim-config/v0.10.0?style=flat-square" />
     </a>
     <a href="https://github.com/jdhao/nvim-config/graphs/contributors">
       <img src="https://img.shields.io/github/contributors/jdhao/nvim-config?style=flat-square" />
@@ -64,7 +64,7 @@ and how to set up on different platforms (Linux, macOS, and Windows).
 + Better escaping from insert mode via [better-escape.vim](https://github.com/nvim-zh/better-escape.vim).
 + Ultra-fast project-wide fuzzy searching via [LeaderF](https://github.com/Yggdroot/LeaderF).
 + Faster code commenting via [vim-commentary](https://github.com/tpope/vim-commentary).
-+ Faster matching pair insertion and jump via [delimitMate](https://github.com/Raimondi/delimitMate).
++ Faster matching pair insertion and jump via [nvim-autopairs](https://github.com/windwp/nvim-autopairs).
 + Smarter and faster matching pair management (add, replace or delete) via [vim-sandwich](https://github.com/machakann/vim-sandwich).
 + Fast buffer jump via [hop.nvim](https://github.com/phaazon/hop.nvim).
 + Powerful snippet insertion via [Ultisnips](https://github.com/SirVer/ultisnips).
@@ -169,8 +169,8 @@ Some of the shortcuts I use frequently are listed here. In the following shortcu
 | `<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>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>gl`      | Normal/Visual | Linux/macOS/Win | Get perm link for current/visually-select lines                          |
+| `<leader>gb`      | Normal        | macOS           | Browse current git repo in browser                                       |
 | `<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                                                        |

after/ftplugin/cpp.vim

@@ -34,6 +34,3 @@ function s:create_term_buf(_type, size) abort
   endif
   execute 'resize ' . a:size
 endfunction
-
-" For delimitMate
-let b:delimitMate_matchpairs = "(:),[:],{:}"

after/ftplugin/lua.vim

@@ -3,6 +3,3 @@ set formatoptions-=o
 set formatoptions-=r
 
 nnoremap <buffer><silent> <F9> :luafile %<CR>
-
-" For delimitMate
-let b:delimitMate_matchpairs = "(:),[:],{:}"

after/ftplugin/python.vim

@@ -12,6 +12,3 @@ set tabstop=4       " number of visual spaces per TAB
 set softtabstop=4   " number of spaces in tab when editing
 set shiftwidth=4    " number of spaces to use for autoindent
 set expandtab       " expand tab to spaces so that tabs are spaces
-
-" For delimitMate
-let b:delimitMate_matchpairs = "(:),[:],{:}"

autoload/utils.vim

@@ -128,11 +128,22 @@ endfunction
 
 " Output current time or unix timestamp in human-readable format.
 function! utils#iso_time(timestamp) abort
-  if a:timestamp
-    return strftime('%Y-%m-%d %H:%M:%S%z', a:timestamp)
+  " Get current datetime
+  if !a:timestamp
+    return strftime('%Y-%m-%d %H:%M:%S%z')
   endif
 
-  return strftime('%Y-%m-%d %H:%M:%S%z')
+  " this timestamp in expressed in milliseconds
+  if len(a:timestamp) == 13
+    let l:timestamp = a:timestamp[:-4]
+  " this timestamp in expressed in microseconds
+  elseif len(a:timestamp) == 16
+    let l:timestamp = a:timestamp[:-7]
+  else
+    let l:timestamp = a:timestamp
+  endif
+  return strftime('%Y-%m-%d %H:%M:%S%z', l:timestamp)
+
 endfunction
 
 " Check if we are inside a Git repo.

docs/README.md

@@ -118,16 +118,16 @@ The version of Git on the Linux system may be too old so that plugins may break.
 Check [here](https://jdhao.github.io/2021/03/27/upgrade_git_on_linux/) on how to install and set up the latest version of Git.
 For Windows, install [Git for Windows](https://git-scm.com/download/win) and make sure you can run `git` from command line.
 
-### ctags
+### universal-ctags
 
 In order to use tags related plugins such as [vista.vim](https://github.com/liuchengxu/vista.vim), we need to install a ctags distribution.
 Universal-ctags is preferred.
 
 To install it on Linux, we need to build it from source. See [here](https://askubuntu.com/a/836521/768311) for the details.
-To install ctags on macOS, use [Homebrew](https://github.com/universal-ctags/homebrew-universal-ctags):
+To install ctags on macOS, use [Homebrew](https://formulae.brew.sh/formula/universal-ctags):
 
 ```bash
-brew install ctags
+brew install universal-ctags
 ```
 
 To install it Windows, use [chocolatey](https://chocolatey.org/) or [scoop](https://scoop.sh/)
@@ -166,35 +166,9 @@ Set their PATH properly and make sure you can run `pylint`, `flake8` and `vint`
 There are various ways to install Nvim depending on your system.
 This config is only maintained for [the latest nvim stable release](https://github.com/neovim/neovim/releases/tag/stable).
 
-### Linux
+Please check the official doc on how to install Neovim on different systems: https://github.com/neovim/neovim/blob/master/INSTALL.md
 
-You can directly download the binary release from [here](https://github.com/neovim/neovim/releases/download/stable/nvim-linux64.tar.gz).
-You can also use the system package manager to install nvim,
-but that is not reliable since the latest version may not be available.
-
-### Windows
-
-You may download from [nvim release](https://github.com/neovim/neovim/releases/download/stable/nvim-win64.zip) from GitHub and manually extract it.
-
-Another way to install Nvim on Windows is via chocolatey or scoop:
-
-```
-choco install neovim
-
-# via scoop
-# scoop bucket add versions
-# scoop install neovim
-```
-
-### macOS
-
-It is recommended to install neovim via [Homebrew](https://brew.sh/) on macOS. Simply run the following command:
-
-```bash
-brew install neovim
-```
-
-After installing Nvim, we need to set the path to nvim correctly.
+After installing Nvim, we need to set the PATH to nvim correctly.
 **Make sure that you can run `nvim` from the command line after all these setups**.
 
 ## Setting up Nvim

init.lua

@@ -14,13 +14,21 @@ vim.loader.enable()
 local version = vim.version
 
 -- check if we have the latest stable version of nvim
-local expected_ver = "0.9.2"
-local ev = version.parse(expected_ver)
-local actual_ver = version()
+local expected_ver_str = "0.10.1"
+local expect_ver = version.parse(expected_ver_str)
+local actual_ver = vim.version()
 
-if version.cmp(ev, actual_ver) ~= 0 then
+if expect_ver == nil then
+  local msg = string.format("Unsupported version string: %s", expected_ver_str)
+  vim.api.nvim_err_writeln(msg)
+  return
+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 %s, but got %s instead. Use at your own risk!", expected_ver, _ver)
+  local msg = string.format("Expect nvim %s, but got %s instead. Use at your own risk!", expected_ver_str, _ver)
   vim.api.nvim_err_writeln(msg)
 end
 
@@ -33,10 +41,11 @@ local core_conf_files = {
   "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/core/%s", vim.fn.stdpath("config"), file_name)
+    local path = string.format("%s/%s", viml_conf_dir, file_name)
     local source_cmd = "source " .. path
     vim.cmd(source_cmd)
   else

lazy-lock.json

@@ -1,88 +0,0 @@
-{
-  "LeaderF": { "branch": "master", "commit": "9c4451d2c1a6ea1f32e39fe52d58f6f5655b231d" },
-  "asyncrun.vim": { "branch": "master", "commit": "42385d54b8546c163b946fd50eed2103ef7993c9" },
-  "better-escape.vim": { "branch": "master", "commit": "6b16a45a839727977277f6ab11bded63e9ed86bb" },
-  "bufferline.nvim": { "branch": "main", "commit": "9961d87bb3ec008213c46ba14b3f384a5f520eb5" },
-  "catppuccin": { "branch": "main", "commit": "85e93601e0f0b48aa2c6bbfae4d0e9d7a1898280" },
-  "cmp-buffer": { "branch": "main", "commit": "3022dbc9166796b644a841a02de8dd1cc1d311fa" },
-  "cmp-emoji": { "branch": "main", "commit": "19075c36d5820253d32e2478b6aaf3734aeaafa0" },
-  "cmp-nvim-lsp": { "branch": "main", "commit": "44b16d11215dce86f253ce0c30949813c0a90765" },
-  "cmp-nvim-ultisnips": { "branch": "main", "commit": "24bca5c3e137b28cd87442d4fc51a2b312dd99cc" },
-  "cmp-omni": { "branch": "main", "commit": "9436e6cdd7c5dfa24a99a60d9280b24dbdea3649" },
-  "cmp-path": { "branch": "main", "commit": "91ff86cd9c29299a64f968ebb45846c485725f23" },
-  "committia.vim": { "branch": "master", "commit": "0b4df1a7f48ffbc23b009bd14d58ee1be541917c" },
-  "dashboard-nvim": { "branch": "master", "commit": "bbe0234168501b8ba46f24b4fb3cb7c5b88c0784" },
-  "delimitMate": { "branch": "master", "commit": "537a1da0fa5eeb88640425c37e545af933c56e1b" },
-  "dressing.nvim": { "branch": "master", "commit": "c1e1d5fa44fe08811b6ef4aadac2b50e602f9504" },
-  "edge": { "branch": "master", "commit": "a4fd4f458331d42677d992f428235c491b2016aa" },
-  "emmylua-nvim": { "branch": "master", "commit": "38720eb5f1dac8e87254fd944dbe0959b2e67d94" },
-  "everforest": { "branch": "master", "commit": "83b666410d7ae0eccf96dbbe3b4b6ac5b8172d38" },
-  "fidget.nvim": { "branch": "main", "commit": "0ba1e16d07627532b6cae915cc992ecac249fb97" },
-  "firenvim": { "branch": "master", "commit": "138424db463e6c0e862a05166a4ccc781cd7c19d" },
-  "gitlinker.nvim": { "branch": "master", "commit": "cc59f732f3d043b626c8702cb725c82e54d35c25" },
-  "gitsigns.nvim": { "branch": "main", "commit": "907ae8636016aab2f283576fc60d46ca3427e579" },
-  "gruvbox-material": { "branch": "master", "commit": "b5f8c6a6c1cda630c53b061b765068a0898d47a3" },
-  "hop.nvim": { "branch": "master", "commit": "1a1eceafe54b5081eae4cb91c723abd1d450f34b" },
-  "indent-blankline.nvim": { "branch": "master", "commit": "9637670896b68805430e2f72cf5d16be5b97a22a" },
-  "kanagawa.nvim": { "branch": "master", "commit": "a4e99f089110c6d00bc33f5497709200e914e763" },
-  "lazy.nvim": { "branch": "main", "commit": "2a9354c7d2368d78cbd5575a51a2af5bd8a6ad01" },
-  "lspkind-nvim": { "branch": "master", "commit": "57610d5ab560c073c465d6faf0c19f200cb67e6e" },
-  "lualine.nvim": { "branch": "master", "commit": "45e27ca739c7be6c49e5496d14fcf45a303c3a63" },
-  "markdown-preview.nvim": { "branch": "master", "commit": "02cc3874738bc0f86e4b91f09b8a0ac88aef8e96" },
-  "material.nvim": { "branch": "main", "commit": "1ecaa2d065a1ea308bd7702a77c2bf35ede8f536" },
-  "monokai.nvim": { "branch": "master", "commit": "b8bd44d5796503173627d7a1fc51f77ec3a08a63" },
-  "neoformat": { "branch": "master", "commit": "0c285d7a7c06a6ee88db70871a274797693fce42" },
-  "nightfox.nvim": { "branch": "main", "commit": "e886e39e592e89f316536a6f070365a9d88901c9" },
-  "nord.nvim": { "branch": "master", "commit": "15fbfc38a83980b93e169b32a1bf64757f1e2bf4" },
-  "nvim-bqf": { "branch": "main", "commit": "a906a9dfc1bd7b3ac51ac954e32e157ffad9a7cd" },
-  "nvim-cmp": { "branch": "main", "commit": "5dce1b778b85c717f6614e3f4da45e9f19f54435" },
-  "nvim-hlslens": { "branch": "main", "commit": "f0281591a59e95400babf61a96e59ba20e5c9533" },
-  "nvim-lspconfig": { "branch": "master", "commit": "cc388d3f6b9c7c943ae2b2dcd46ad470fd257f91" },
-  "nvim-notify": { "branch": "master", "commit": "94859430020f5cf32a1b97ddd9e596fed9db7981" },
-  "nvim-tree.lua": { "branch": "master", "commit": "94c7c810af205c0f00c8f105dcf490c8eb17658a" },
-  "nvim-treesitter": { "branch": "master", "commit": "bf8b089eecef9e9e8c1765f81613a2fd5e49175c" },
-  "nvim-web-devicons": { "branch": "master", "commit": "973ab742f143a796a779af4d786ec409116a0d87" },
-  "onedark.nvim": { "branch": "master", "commit": "dac8c39812dae025255c9069a260e1f69d967927" },
-  "onedarkpro.nvim": { "branch": "main", "commit": "fa861b992471d55f653751f1fea8769ca536a554" },
-  "open-browser.vim": { "branch": "master", "commit": "7d4c1d8198e889d513a030b5a83faa07606bac27" },
-  "plenary.nvim": { "branch": "master", "commit": "9ce85b0f7dcfe5358c0be937ad23e456907d410b" },
-  "rose-pine": { "branch": "main", "commit": "e29002cbee4854a9c8c4b148d8a52fae3176070f" },
-  "sonokai": { "branch": "master", "commit": "17308ee6d9c764bfc1e0fa97213e7a99701b4144" },
-  "tabular": { "branch": "master", "commit": "339091ac4dd1f17e225fe7d57b48aff55f99b23a" },
-  "targets.vim": { "branch": "master", "commit": "642d3a4ce306264b05ea3219920b13ea80931767" },
-  "telescope-symbols.nvim": { "branch": "master", "commit": "f2060117d965df4a626f068a4ebbd8ee051aa076" },
-  "telescope.nvim": { "branch": "master", "commit": "59812c26d826e8c717e29406267ea1260f71e103" },
-  "ultisnips": { "branch": "master", "commit": "24a3ebb36687b6d59a19d63173713575b486d739" },
-  "unicode.vim": { "branch": "master", "commit": "c8aa12b1e2e1b6254885b12bdb239ce6c885fdb1" },
-  "vim-auto-save": { "branch": "master", "commit": "2e3e54ea4c0fc946c21b0a4ee4c1c295ba736ee8" },
-  "vim-commentary": { "branch": "master", "commit": "e87cd90dc09c2a203e13af9704bd0ef79303d755" },
-  "vim-conflicted": { "branch": "master", "commit": "068c320796f807ac4961618e3e62316773803996" },
-  "vim-eunuch": { "branch": "master", "commit": "67f3dd32b4dcd1c427085f42ff5f29c7adc645c6" },
-  "vim-flog": { "branch": "master", "commit": "58c1d39ec42f92d23a1204b1869e5d1dece8b86c" },
-  "vim-fugitive": { "branch": "master", "commit": "6fcb0ad03982de646e3fecb6915e585651b9a9fb" },
-  "vim-grammarous": { "branch": "master", "commit": "db46357465ce587d5325e816235b5e92415f8c05" },
-  "vim-highlighturl": { "branch": "master", "commit": "012fee983e03913db6ba6393307eac434999b896" },
-  "vim-indent-object": { "branch": "master", "commit": "5c5b24c959478929b54a9e831a8e2e651a465965" },
-  "vim-markdown": { "branch": "master", "commit": "cc82d88e2a791f54d2b6e2b26e41f743351ac947" },
-  "vim-markdownfootnotes": { "branch": "master", "commit": "2b288149f48cfaf7465d25bb094ed62898f5e5b0" },
-  "vim-matchup": { "branch": "master", "commit": "6dbe108230c7dbbf00555b7d4d9f6a891837ef07" },
-  "vim-mundo": { "branch": "master", "commit": "b53d35fb5ca9923302b9ef29e618ab2db4cc675e" },
-  "vim-obsession": { "branch": "master", "commit": "fe9d3e1a9a50171e7d316a52e1e56d868e4c1fe5" },
-  "vim-python-pep8-indent": { "branch": "master", "commit": "60ba5e11a61618c0344e2db190210145083c91f8" },
-  "vim-pythonsense": { "branch": "master", "commit": "9200a57629c904ed2ab8c9b2e8c5649d311794ba" },
-  "vim-repeat": { "branch": "master", "commit": "24afe922e6a05891756ecf331f39a1f6743d3d5a" },
-  "vim-sandwich": { "branch": "master", "commit": "c5a2cc438ce6ea2005c556dc833732aa53cae21a" },
-  "vim-scriptease": { "branch": "master", "commit": "18511d389675d773994215ddb572ccdc2b72f52b" },
-  "vim-snippets": { "branch": "master", "commit": "ccc2fa1529d372f7ac16d5eb07a385a72b50e05d" },
-  "vim-swap": { "branch": "master", "commit": "9358bfdc5e377aa13e7c2c2dd8699ba32b0dcf83" },
-  "vim-tmux": { "branch": "master", "commit": "cfe76281efc29890548cf9eedd42ad51c7a1faf0" },
-  "vim-toml": { "branch": "main", "commit": "d36caa6b1cf508a4df1c691f915572fc02143258" },
-  "vim-xkbswitch": { "branch": "master", "commit": "42b55bfec8f6dbd715135ce582a6f769831face1" },
-  "vimtex": { "branch": "master", "commit": "2b8a5f16a5768b3ae1780c266b73022dbb658af1" },
-  "vista.vim": { "branch": "master", "commit": "40daf5e97be70a90465182fbbdfba92442bfd8e1" },
-  "which-key.nvim": { "branch": "main", "commit": "7ccf476ebe0445a741b64e36c78a682c1c6118b7" },
-  "whitespace.nvim": { "branch": "master", "commit": "f0fc9e9c4ce3f7d2166e9e5a069b64b9ca4a3f15" },
-  "wilder.nvim": { "branch": "master", "commit": "679f348dc90d80ff9ba0e7c470c40a4d038dcecf" },
-  "yanky.nvim": { "branch": "main", "commit": "4c85d8d6808d9859e72f8bd6c25302199e6a5eac" },
-  "zen-mode.nvim": { "branch": "main", "commit": "68f554702de63f4b7b6b6d4bcb10178f41a0acc7" }
-}

lua/colorschemes.lua

@@ -6,123 +6,69 @@ local M = {}
 
 -- Colorscheme to its directory name mapping, because colorscheme repo name is not necessarily
 -- the same as the colorscheme name itself.
-M.colorscheme2dir = {
-  onedark = "onedark.nvim",
-  edge = "edge",
-  sonokai = "sonokai",
-  gruvbox_material = "gruvbox-material",
-  nord = "nord.nvim",
-  everforest = "everforest",
-  nightfox = "nightfox.nvim",
-  kanagawa = "kanagawa.nvim",
-  catppuccin = "catppuccin",
-  rose_pine = "rose-pine",
-  onedarkpro = "onedarkpro.nvim",
-  monokai = "monokai.nvim",
-  material = "material.nvim",
+M.colorscheme_conf = {
+  onedark = function()
+    vim.cmd([[colorscheme onedark]])
+  end,
+  edge = function()
+    vim.g.edge_enable_italic = 1
+    vim.g.edge_better_performance = 1
+
+    vim.cmd([[colorscheme edge]])
+  end,
+  sonokai = function()
+    vim.g.sonokai_enable_italic = 1
+    vim.g.sonokai_better_performance = 1
+
+    vim.cmd([[colorscheme sonokai]])
+  end,
+  gruvbox_material = function()
+    -- foreground option can be material, mix, or original
+    vim.g.gruvbox_material_foreground = "original"
+    --background option can be hard, medium, soft
+    vim.g.gruvbox_material_background = "medium"
+    vim.g.gruvbox_material_enable_italic = 1
+    vim.g.gruvbox_material_better_performance = 1
+
+    vim.cmd([[colorscheme gruvbox-material]])
+  end,
+  everforest = function()
+    vim.g.everforest_enable_italic = 1
+    vim.g.everforest_better_performance = 1
+
+    vim.cmd([[colorscheme everforest]])
+  end,
+  nightfox = function()
+    vim.cmd([[colorscheme nordfox]])
+  end,
+  catppuccin = function()
+    -- available option: latte, frappe, macchiato, mocha
+    vim.g.catppuccin_flavour = "frappe"
+    require("catppuccin").setup()
+
+    vim.cmd([[colorscheme catppuccin]])
+  end,
+  onedarkpro = function()
+    -- set colorscheme after options
+    vim.cmd('colorscheme onedark_vivid')
+  end,
+  material = function()
+    vim.g.material_style = "oceanic"
+    vim.cmd('colorscheme material')
+  end,
+  arctic = function ()
+    vim.cmd("colorscheme arctic")
+  end,
+  kanagawa = function()
+    vim.cmd("colorscheme kanagawa-wave")
+  end
 }
 
-M.gruvbox8 = function()
-  -- Italic options should be put before colorscheme setting,
-  -- see https://github.com/morhetz/gruvbox/wiki/Terminal-specific#1-italics-is-disabled
-  vim.g.gruvbox_italics = 1
-  vim.g.gruvbox_italicize_strings = 1
-  vim.g.gruvbox_filetype_hi_groups = 1
-  vim.g.gruvbox_plugin_hi_groups = 1
-
-  vim.cmd([[colorscheme gruvbox8_hard]])
-end
-
-M.onedark = function()
-  vim.cmd([[colorscheme onedark]])
-end
-
-M.edge = function()
-  vim.g.edge_enable_italic = 1
-  vim.g.edge_better_performance = 1
-
-  vim.cmd([[colorscheme edge]])
-end
-
-M.sonokai = function()
-  vim.g.sonokai_enable_italic = 1
-  vim.g.sonokai_better_performance = 1
-
-  vim.cmd([[colorscheme sonokai]])
-end
-
-M.gruvbox_material = function()
-  -- foreground option can be material, mix, or original
-  vim.g.gruvbox_material_foreground = "material"
-  --background option can be hard, medium, soft
-  vim.g.gruvbox_material_background = "soft"
-  vim.g.gruvbox_material_enable_italic = 1
-  vim.g.gruvbox_material_better_performance = 1
-
-  vim.cmd([[colorscheme gruvbox-material]])
-end
-
-M.nord = function()
-  vim.cmd([[colorscheme nord]])
-end
-
-M.doom_one = function()
-  vim.cmd([[colorscheme doom-one]])
-end
-
-M.everforest = function()
-  vim.g.everforest_enable_italic = 1
-  vim.g.everforest_better_performance = 1
-
-  vim.cmd([[colorscheme everforest]])
-end
-
-M.nightfox = function()
-  vim.cmd([[colorscheme nordfox]])
-end
-
-M.kanagawa = function()
-  vim.cmd([[colorscheme kanagawa]])
-end
-
-M.catppuccin = function()
-  -- available option: latte, frappe, macchiato, mocha
-  vim.g.catppuccin_flavour = "frappe"
-
-  require("catppuccin").setup()
-
-  vim.cmd([[colorscheme catppuccin]])
-end
-
-M.rose_pine = function()
-  require('rose-pine').setup({
-    --- @usage 'main' | 'moon'
-    dark_variant = 'moon',
-  })
-
-  -- set colorscheme after options
-  vim.cmd('colorscheme rose-pine')
-end
-
-M.onedarkpro = function()
-  -- set colorscheme after options
-  vim.cmd('colorscheme onedark_vivid')
-end
-
-M.monokai = function()
-  vim.cmd('colorscheme monokai_pro')
-end
-
-M.material = function ()
-  vim.g.material_style = "oceanic"
-  vim.cmd('colorscheme material')
-end
-
 --- Use a random colorscheme from the pre-defined list of colorschemes.
 M.rand_colorscheme = function()
-  local colorscheme = utils.rand_element(vim.tbl_keys(M.colorscheme2dir))
+  local colorscheme = utils.rand_element(vim.tbl_keys(M.colorscheme_conf))
 
-  if not vim.tbl_contains(vim.tbl_keys(M), colorscheme) then
+  if not vim.tbl_contains(vim.tbl_keys(M.colorscheme_conf), colorscheme) then
     local msg = "Invalid colorscheme: " .. colorscheme
     vim.notify(msg, vim.log.levels.ERROR, { title = "nvim-config" })
 
@@ -130,7 +76,7 @@ M.rand_colorscheme = function()
   end
 
   -- Load the colorscheme and its settings
-  M[colorscheme]()
+  M.colorscheme_conf[colorscheme]()
 
   if vim.g.logging_level == "debug" then
     local msg = "Colorscheme: " .. colorscheme

lua/config/fugitive.lua

@@ -6,6 +6,7 @@ keymap.set("n", "<leader>gc", "<cmd>Git commit<cr>", { desc = "Git commit" })
 keymap.set("n", "<leader>gd", "<cmd>Gdiffsplit<cr>", { desc = "Git diff" })
 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" })
+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')
+vim.fn["utils#Cabbrev"]("git", "Git")

lua/config/gitsigns.lua

@@ -2,11 +2,11 @@ local gs = require("gitsigns")
 
 gs.setup {
   signs = {
-    add = { hl = "GitSignsAdd", text = "+", numhl = "GitSignsAddNr", linehl = "GitSignsAddLn" },
-    change = { hl = "GitSignsChange", text = "~", numhl = "GitSignsChangeNr", linehl = "GitSignsChangeLn" },
-    delete = { hl = "GitSignsDelete", text = "_", numhl = "GitSignsDeleteNr", linehl = "GitSignsDeleteLn" },
-    topdelete = { hl = "GitSignsDelete", text = "‾", numhl = "GitSignsDeleteNr", linehl = "GitSignsDeleteLn" },
-    changedelete = { hl = "GitSignsChange", text = "│", numhl = "GitSignsChangeNr", linehl = "GitSignsChangeLn" },
+    add = { text = "+" },
+    change = { text = "~" },
+    delete = { text = "_" },
+    topdelete = { text = "‾" },
+    changedelete = { text = "│" },
   },
   word_diff = true,
   on_attach = function(bufnr)

lua/config/hlslens.lua

@@ -35,14 +35,32 @@ keymap.set("n", "N", "", {
   end,
 })
 
+local no_word_under_cursor = 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
+end
+
 keymap.set("n", "*", "", {
   callback = function()
+    if no_word_under_cursor() then
+      return
+    end
     vim.fn.execute("normal! *N")
     hlslens.start()
   end,
 })
 keymap.set("n", "#", "", {
   callback = function()
+    if no_word_under_cursor() then
+      return
+    end
     vim.fn.execute("normal! #N")
     hlslens.start()
   end,

lua/config/indent-blankline.lua

@@ -1,21 +1,28 @@
 local api = vim.api
 
-local exclude_ft = { "help", "git", "markdown", "snippets", "text", "gitconfig", "alpha" }
-require("indent_blankline").setup {
-  -- U+2502 may also be a good choice, it will be on the middle of cursor.
-  -- U+250A is also a good choice
-  char = "▏",
-  show_end_of_line = false,
-  disable_with_nolist = true,
-  buftype_exclude = { "terminal" },
-  filetype_exclude = exclude_ft,
+local exclude_ft = { "help", "git", "markdown", "snippets", "text", "gitconfig", "alpha", "dashboard" }
+
+require("ibl").setup {
+  indent = {
+    -- -- U+2502 may also be a good choice, it will be on the middle of cursor.
+    -- -- U+250A is also a good choice
+    char = "▏",
+  },
+  scope = {
+    show_start = false,
+    show_end = false,
+  },
+  exclude = {
+    filetypes = exclude_ft,
+    buftypes = { "terminal" },
+  },
 }
 
 local gid = api.nvim_create_augroup("indent_blankline", { clear = true })
 api.nvim_create_autocmd("InsertEnter", {
   pattern = "*",
   group = gid,
-  command = "IndentBlanklineDisable",
+  command = "IBLDisable",
 })
 
 api.nvim_create_autocmd("InsertLeave", {
@@ -23,7 +30,7 @@ api.nvim_create_autocmd("InsertLeave", {
   group = gid,
   callback = function()
     if not vim.tbl_contains(exclude_ft, vim.bo.filetype) then
-      vim.cmd([[IndentBlanklineEnable]])
+      vim.cmd([[IBLEnable]])
     end
   end,
 })

lua/config/lsp.lua

@@ -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")
 
@@ -231,11 +236,12 @@ if utils.executable("lua-language-server") then
         },
         workspace = {
           -- Make the server aware of Neovim runtime files,
-          -- see also https://github.com/LuaLS/lua-language-server/wiki/Libraries#link-to-workspace .
-          -- Lua-dev.nvim also has similar settings for lua ls, https://github.com/folke/neodev.nvim/blob/main/lua/neodev/luals.lua .
+          -- see also https://luals.github.io/wiki/settings/#workspacelibrary
           library = {
-            fn.stdpath("data") .. "/lazy/emmylua-nvim",
+            vim.env.VIMRUNTIME,
             fn.stdpath("config"),
+            -- make lua_ls aware of functions under vim.uv
+            "${3rd}/luv/library"
           },
           maxPreload = 2000,
           preloadFileSize = 50000,

lua/config/lualine.lua

@@ -97,12 +97,49 @@ local diff = function()
   return info
 end
 
+local virtual_env = function()
+  -- only show virtual env for Python
+  if vim.bo.filetype ~= "python" then
+    return ""
+  end
+
+  local conda_env = os.getenv("CONDA_DEFAULT_ENV")
+  local venv_path = os.getenv("VIRTUAL_ENV")
+
+  if venv_path == nil then
+    if conda_env == nil then
+      return ""
+    else
+      return string.format("  %s (conda)", conda_env)
+    end
+  else
+    local venv_name = vim.fn.fnamemodify(venv_path, ":t")
+    return string.format("  %s (venv)", venv_name)
+  end
+end
+
+local get_active_lsp = function()
+  local msg = "No Active Lsp"
+  local buf_ft = vim.api.nvim_get_option_value("filetype", {})
+  local clients = vim.lsp.get_clients { bufnr = 0 }
+  if next(clients) == nil then
+    return msg
+  end
+
+  for _, client in ipairs(clients) do
+    ---@diagnostic disable-next-line: undefined-field
+    local filetypes = client.config.filetypes
+    if filetypes and vim.fn.index(filetypes, buf_ft) ~= -1 then
+      return client.name
+    end
+  end
+  return msg
+end
+
 require("lualine").setup {
   options = {
     icons_enabled = true,
     theme = "auto",
-    -- component_separators = { left = "", right = "" },
-    -- section_separators = { left = "", right = "" },
     section_separators = "",
     component_separators = "",
     disabled_filetypes = {},
@@ -111,14 +148,29 @@ require("lualine").setup {
   sections = {
     lualine_a = { "mode" },
     lualine_b = {
-      "branch",
+      {
+        "branch",
+        fmt = function(name, _)
+          -- truncate branch name in case the name is too long
+          return string.sub(name, 1, 20)
+        end,
+      },
+      {
+        virtual_env,
+        color = { fg = "black", bg = "#F1CA81" },
+      },
+    },
+    lualine_c = {
+      {
+        "filename",
+        symbols = {
+          readonly = "[🔒]",
+        },
+      },
       {
         "diff",
         source = diff,
       },
-    },
-    lualine_c = {
-      "filename",
       {
         ime_state,
         color = { fg = "black", bg = "#f46868" },
@@ -127,13 +179,19 @@ require("lualine").setup {
         spell,
         color = { fg = "black", bg = "#a7c080" },
       },
+    },
+    lualine_x = {
+      {
+        get_active_lsp,
+        icon = " LSP:",
+      },
       {
         "diagnostics",
         sources = { "nvim_diagnostic" },
-        symbols = {error = '🆇 ', warn = '⚠️ ', info = 'ℹ️ ', hint = ' '},
+        symbols = { error = "🆇 ", warn = "⚠️ ", info = "ℹ️ ", hint = " " },
       },
     },
-    lualine_x = {
+    lualine_y = {
       "encoding",
       {
         "fileformat",
@@ -145,10 +203,6 @@ require("lualine").setup {
       },
       "filetype",
     },
-    lualine_y = {
-      "location",
-      "progress",
-    },
     lualine_z = {
       {
         trailing_space,
@@ -158,6 +212,7 @@ require("lualine").setup {
         mixed_indent,
         color = "WarningMsg",
       },
+      "progress"
     },
   },
   inactive_sections = {

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-tree.lua

@@ -4,15 +4,14 @@ local nvim_tree = require("nvim-tree")
 nvim_tree.setup {
   auto_reload_on_write = true,
   disable_netrw = false,
-  hijack_cursor = false,
   hijack_netrw = true,
+  hijack_cursor = false,
   hijack_unnamed_buffer_when_opening = false,
   open_on_tab = false,
   sort_by = "name",
   update_cwd = false,
   view = {
     width = 30,
-    hide_root_folder = false,
     side = "left",
     preserve_window_proportions = false,
     number = false,

lua/config/nvim_hop.lua

@@ -1,13 +1,10 @@
-vim.cmd([[hi HopNextKey cterm=bold ctermfg=176 gui=bold guibg=#ff00ff guifg=#ffffff]])
-vim.cmd([[hi HopNextKey1 cterm=bold ctermfg=176 gui=bold guibg=#ff00ff guifg=#ffffff]])
-vim.cmd([[hi HopNextKey2 cterm=bold ctermfg=176 gui=bold guibg=#ff00ff guifg=#ffffff]])
-
 local keymap = vim.keymap
 local hop = require("hop")
 hop.setup {
   case_insensitive = true,
   char2_fallback_key = "<CR>",
   quit_key = "<Esc>",
+  match_mappings = { "zh_sc" }
 }
 
 keymap.set({ "n", "v", "o" }, "f", "", {
@@ -18,3 +15,14 @@ keymap.set({ "n", "v", "o" }, "f", "", {
   end,
   desc = "nvim-hop char2",
 })
+
+vim.api.nvim_create_autocmd("ColorScheme", {
+  pattern = "*",
+  callback = function()
+    vim.cmd([[
+      hi HopNextKey cterm=bold ctermfg=176 gui=bold guibg=#ff00ff guifg=#ffffff
+      hi HopNextKey1 cterm=bold ctermfg=176 gui=bold guibg=#ff00ff guifg=#ffffff
+      hi HopNextKey2 cterm=bold ctermfg=176 gui=bold guibg=#ff00ff guifg=#ffffff
+    ]])
+  end
+})

lua/config/nvim_ufo.lua

@@ -0,0 +1,44 @@
+local handler = function(virtText, lnum, endLnum, width, truncate)
+  local newVirtText = {}
+  local foldedLines = endLnum - lnum
+  local suffix = (" 󰁂  %d"):format(foldedLines)
+  local sufWidth = vim.fn.strdisplaywidth(suffix)
+  local targetWidth = width - sufWidth
+  local curWidth = 0
+
+  for _, chunk in ipairs(virtText) do
+    local chunkText = chunk[1]
+    local chunkWidth = vim.fn.strdisplaywidth(chunkText)
+    if targetWidth > curWidth + chunkWidth then
+      table.insert(newVirtText, chunk)
+    else
+      chunkText = truncate(chunkText, targetWidth - curWidth)
+      local hlGroup = chunk[2]
+      table.insert(newVirtText, { chunkText, hlGroup })
+      chunkWidth = vim.fn.strdisplaywidth(chunkText)
+      -- str width returned from truncate() may less than 2nd argument, need padding
+      if curWidth + chunkWidth < targetWidth then
+        suffix = suffix .. (" "):rep(targetWidth - curWidth - chunkWidth)
+      end
+      break
+    end
+    curWidth = curWidth + chunkWidth
+  end
+  local rAlignAppndx = math.max(math.min(vim.opt.textwidth["_value"], width - 1) - curWidth - sufWidth, 0)
+  suffix = (" "):rep(rAlignAppndx) .. suffix
+  table.insert(newVirtText, { suffix, "MoreMsg" })
+  return newVirtText
+end
+
+require("ufo").setup {
+  fold_virt_text_handler = handler,
+}
+
+vim.keymap.set("n", "zR", require("ufo").openAllFolds)
+vim.keymap.set("n", "zM", require("ufo").closeAllFolds)
+vim.keymap.set("n", "zr", require("ufo").openFoldsExceptKinds)
+vim.keymap.set("n", "<leader>K", function()
+  local _ = require("ufo").peekFoldedLinesUnderCursor()
+end, {
+  desc = "Preview folded maps",
+})

lua/config/which-key.lua

@@ -1,60 +1,6 @@
 require("which-key").setup {
-  plugins = {
-    marks = true, -- shows a list of your marks on ' and `
-    registers = true, -- shows your registers on " in NORMAL or <C-r> in INSERT mode
-    spelling = {
-      enabled = true, -- enabling this will show WhichKey when pressing z= to select spelling suggestions
-      suggestions = 9, -- how many suggestions should be shown in the list?
-    },
-    -- the presets plugin, adds help for a bunch of default keybindings in Neovim
-    -- No actual key bindings are created
-    presets = {
-      operators = true, -- adds help for operators like d, y, ... and registers them for motion / text object completion
-      motions = true, -- adds help for motions
-      text_objects = true, -- help for text objects triggered after entering an operator
-      windows = true, -- default bindings on <c-w>
-      nav = true, -- misc bindings to work with windows
-      z = true, -- bindings for folds, spelling and others prefixed with z
-      g = true, -- bindings for prefixed with g
-    },
-  },
-  -- add operators that will trigger motion and text object completion
-  -- to enable all native operators, set the preset / operators plugin above
-  operators = { gc = "Comments" },
-  key_labels = {
-    -- override the label used to display some keys. It doesn't effect WK in any other way.
-    -- For example:
-    -- ["<space>"] = "SPC",
-    -- ["<cr>"] = "RET",
-    -- ["<tab>"] = "TAB",
-  },
+  preset = "modern",
   icons = {
-    breadcrumb = "»", -- symbol used in the command line area that shows your active key combo
-    separator = "➜", -- symbol used between a key and it's label
-    group = "+", -- symbol prepended to a group
-  },
-  window = {
-    border = "none", -- none, single, double, shadow
-    position = "bottom", -- bottom, top
-    margin = { 0, 0, 0, 0 }, -- extra window margin [top, right, bottom, left]
-    padding = { 1, 0, 1, 0 }, -- extra window padding [top, right, bottom, left]
-  },
-  layout = {
-    height = { min = 1, max = 25 }, -- min and max height of the columns
-    width = { min = 20, max = 50 }, -- min and max width of the columns
-    spacing = 1, -- spacing between columns
-    align = "center", -- align columns left, center or right
-  },
-  ignore_missing = false, -- enable this to hide mappings for which you didn't specify a label
-  hidden = { "<silent>", "<cmd>", "<Cmd>", "<CR>", "call", "lua", "^:", "^ " }, -- hide mapping boilerplate
-  show_help = true, -- show help message on the command line when the popup is visible
-  triggers = "auto", -- automatically setup triggers
-  -- triggers = {"<leader>"} -- or specify a list manually
-
-  triggers_blacklist = {
-    -- list of mode / prefixes that should never be hooked by WhichKey
-    -- this is mostly relevant for key maps that start with a native binding
-    -- most people should not need to change this
-    n = { "o", "O" },
-  },
+    mappings = false
+  }
 }

lua/custom-autocmd.lua

@@ -83,3 +83,23 @@ api.nvim_create_autocmd("VimResized", {
   desc = "autoresize windows on resizing operation",
   command = "wincmd =",
 })
+
+local function open_nvim_tree(data)
+  -- check if buffer is a directory
+  local directory = vim.fn.isdirectory(data.file) == 1
+
+  if not directory then
+    return
+  end
+
+  -- create a new, empty buffer
+  vim.cmd.enew()
+
+  -- wipe the directory buffer
+  vim.cmd.bw(data.buf)
+
+  -- open the tree
+  require("nvim-tree.api").tree.open()
+end
+
+vim.api.nvim_create_autocmd({ "VimEnter" }, { callback = open_nvim_tree })

lua/mappings.lua

@@ -1,6 +1,5 @@
 local keymap = vim.keymap
-local api = vim.api
-local uv = vim.loop
+local uv = vim.uv
 
 -- Save key strokes (now we do not need to press shift to enter command mode).
 keymap.set({ "n", "x" }, ";", ":")
@@ -170,7 +169,7 @@ keymap.set("n", "<Down>", "<C-W>j")
 keymap.set({ "x", "o" }, "iu", "<cmd>call text_obj#URL()<cr>", { desc = "URL text object" })
 
 -- Text objects for entire buffer
-keymap.set({ "x", "o" }, "iB", "<cmd>call text_obj#Buffer()<cr>", { desc = "buffer text object" })
+keymap.set({ "x", "o" }, "iB", ":<C-U>call text_obj#Buffer()<cr>", { desc = "buffer text object" })
 
 -- Do not move my cursor when joining lines.
 keymap.set("n", "J", function()
@@ -179,17 +178,17 @@ keymap.set("n", "J", function()
       delmarks z
     ]])
 end, {
-  desc = "join line",
+  desc = "join lines without moving cursor",
 })
 
 keymap.set("n", "gJ", function()
   -- we must use `normal!`, otherwise it will trigger recursive mapping
   vim.cmd([[
-      normal! zmgJ`z
+      normal! mzgJ`z
       delmarks z
     ]])
 end, {
-  desc = "join visual lines",
+  desc = "join lines without moving cursor",
 })
 
 -- Break inserted text into smaller undo units when we insert some punctuation chars.
@@ -215,9 +214,12 @@ keymap.set("n", "<leader>cb", function()
   local cnt = 0
   local blink_times = 7
   local timer = uv.new_timer()
+  if timer == nil then
+    return
+  end
 
   timer:start(0, 100, vim.schedule_wrap(function()
-    vim.cmd[[
+    vim.cmd [[
       set cursorcolumn!
       set cursorline!
     ]]
@@ -227,5 +229,7 @@ keymap.set("n", "<leader>cb", function()
     end
 
     cnt = cnt + 1
-  end))
-end)
+  end)
+  )
+end,
+  { desc = "show cursor" })

lua/plugin_specs.lua

@@ -1,8 +1,9 @@
 local utils = require("utils")
 
-local lazypath = vim.fn.stdpath("data") .. "/lazy/lazy.nvim"
+local plugin_dir = vim.fn.stdpath("data") .. "/lazy"
+local lazypath = plugin_dir .. "/lazy.nvim"
 
-if not vim.loop.fs_stat(lazypath) then
+if not vim.uv.fs_stat(lazypath) then
   vim.fn.system {
     "git",
     "clone",
@@ -88,12 +89,10 @@ local plugin_specs = {
 
   -- Super fast buffer jump
   {
-    "phaazon/hop.nvim",
+    "smoka7/hop.nvim",
     event = "VeryLazy",
     config = function()
-      vim.defer_fn(function()
-        require("config.nvim_hop")
-      end, 2000)
+      require("config.nvim_hop")
     end,
   },
 
@@ -110,8 +109,12 @@ local plugin_specs = {
     "Yggdroot/LeaderF",
     cmd = "Leaderf",
     build = function()
+      local leaderf_path = plugin_dir .. "/LeaderF"
+      vim.opt.runtimepath:append(leaderf_path)
+      vim.cmd("runtime! plugin/leaderf.vim")
+
       if not vim.g.is_win then
-        vim.cmd(":LeaderfInstallCExtension")
+        vim.cmd("LeaderfInstallCExtension")
       end
     end,
   },
@@ -123,22 +126,29 @@ local plugin_specs = {
       "nvim-telescope/telescope-symbols.nvim",
     },
   },
-
+  {
+    "MeanderingProgrammer/markdown.nvim",
+    main = "render-markdown",
+    opts = {},
+    dependencies = { "nvim-treesitter/nvim-treesitter", "nvim-tree/nvim-web-devicons" },
+  },
   -- A list of colorscheme plugin you may want to try. Find what suits you.
   { "navarasu/onedark.nvim", lazy = true },
   { "sainnhe/edge", lazy = true },
   { "sainnhe/sonokai", lazy = true },
   { "sainnhe/gruvbox-material", lazy = true },
-  { "shaunsingh/nord.nvim", lazy = true },
   { "sainnhe/everforest", lazy = true },
   { "EdenEast/nightfox.nvim", lazy = true },
-  { "rebelot/kanagawa.nvim", lazy = true },
   { "catppuccin/nvim", name = "catppuccin", lazy = true },
-  { "rose-pine/neovim", name = "rose-pine", lazy = true },
   { "olimorris/onedarkpro.nvim", lazy = true },
-  { "tanvirtin/monokai.nvim", lazy = true },
   { "marko-cerovac/material.nvim", lazy = true },
-
+  {
+    "rockyzhang24/arctic.nvim",
+    dependencies = { "rktjmp/lush.nvim" },
+    name = "arctic",
+    branch = "v2",
+  },
+  { "rebelot/kanagawa.nvim", lazy = true },
   { "nvim-tree/nvim-web-devicons", event = "VeryLazy" },
 
   {
@@ -146,7 +156,7 @@ local plugin_specs = {
     event = "VeryLazy",
     cond = firenvim_not_active,
     config = function()
-      require("config.statusline")
+      require("config.lualine")
     end,
   },
 
@@ -171,11 +181,33 @@ local plugin_specs = {
   {
     "lukas-reineke/indent-blankline.nvim",
     event = "VeryLazy",
+    main = "ibl",
     config = function()
       require("config.indent-blankline")
     end,
   },
-
+  {
+    "luukvbaal/statuscol.nvim",
+    opts = {},
+    config = function()
+      require("config.nvim-statuscol")
+    end,
+  },
+  {
+    "kevinhwang91/nvim-ufo",
+    dependencies = "kevinhwang91/promise-async",
+    event = "VeryLazy",
+    opts = {},
+    init = function()
+      vim.o.foldcolumn = "1" -- '0' is not bad
+      vim.o.foldlevel = 99 -- Using ufo provider need a large value, feel free to decrease the value
+      vim.o.foldlevelstart = 99
+      vim.o.foldenable = true
+    end,
+    config = function()
+      require("config.nvim_ufo")
+    end,
+  },
   -- Highlight URLs inside vim
   { "itchyny/vim-highlighturl", event = "VeryLazy" },
 
@@ -184,9 +216,7 @@ local plugin_specs = {
     "rcarriga/nvim-notify",
     event = "VeryLazy",
     config = function()
-      vim.defer_fn(function()
-        require("config.nvim-notify")
-      end, 2000)
+      require("config.nvim-notify")
     end,
   },
 
@@ -224,7 +254,11 @@ local plugin_specs = {
   }, event = "InsertEnter" },
 
   -- Automatic insertion and deletion of a pair of characters
-  { "Raimondi/delimitMate", event = "InsertEnter" },
+  {
+    "windwp/nvim-autopairs",
+    event = "InsertEnter",
+    config = true,
+  },
 
   -- Comment plugin
   { "tpope/vim-commentary", event = "VeryLazy" },
@@ -294,7 +328,7 @@ local plugin_specs = {
 
   -- Better git log display
   { "rbong/vim-flog", cmd = { "Flog" } },
-  { "christoomey/vim-conflicted", cmd = { "Conflicted" } },
+  { "akinsho/git-conflict.nvim", version = "*", config = true },
   {
     "ruifm/gitlinker.nvim",
     event = "User InGitRepo",
@@ -313,6 +347,11 @@ local plugin_specs = {
 
   -- Better git commit experience
   { "rhysd/committia.vim", lazy = true },
+
+  {
+    "sindrets/diffview.nvim",
+  },
+
   {
     "kevinhwang91/nvim-bqf",
     ft = "qf",
@@ -412,17 +451,26 @@ local plugin_specs = {
   {
     "glacambre/firenvim",
     enabled = function()
-      if vim.g.is_win or vim.g.is_mac then
-        return true
-      end
-      return false
+      local result = vim.g.is_win or vim.g.is_mac
+      return result
     end,
+    -- it seems that we can only call the firenvim function directly.
+    -- Using vim.fn or vim.cmd to call this function will fail.
     build = function()
-      vim.fn["firenvim#install"](0)
-    end,
-    lazy = true,
-  },
+      local firenvim_path = plugin_dir .. "/firenvim"
+      vim.opt.runtimepath:append(firenvim_path)
+      vim.cmd("runtime! firenvim.vim")
 
+      -- macOS will reset the PATH when firenvim starts a nvim process, causing the PATH variable to change unexpectedly.
+      -- Here we are trying to get the correct PATH and use it for firenvim.
+      -- See also https://github.com/glacambre/firenvim/blob/master/TROUBLESHOOTING.md#make-sure-firenvims-path-is-the-same-as-neovims
+      local path_env = vim.env.PATH
+      local prologue = string.format('export PATH="%s"', path_env)
+      -- local prologue = "echo"
+      local cmd_str = string.format(":call firenvim#install(0, '%s')", prologue)
+      vim.cmd(cmd_str)
+    end,
+  },
   -- Debugger plugin
   {
     "sakhnik/nvim-gdb",
@@ -461,9 +509,7 @@ local plugin_specs = {
     "folke/which-key.nvim",
     event = "VeryLazy",
     config = function()
-      vim.defer_fn(function()
-        require("config.which-key")
-      end, 2000)
+      require("config.which-key")
     end,
   },
 
@@ -473,14 +519,13 @@ local plugin_specs = {
   -- file explorer
   {
     "nvim-tree/nvim-tree.lua",
-    keys = { "<space>s" },
+    event = "VeryLazy",
     dependencies = { "nvim-tree/nvim-web-devicons" },
     config = function()
       require("config.nvim-tree")
     end,
   },
 
-  { "ii14/emmylua-nvim", ft = "lua" },
   {
     "j-hui/fidget.nvim",
     event = "VeryLazy",
@@ -489,15 +534,21 @@ local plugin_specs = {
       require("config.fidget-nvim")
     end,
   },
+  {
+    "folke/lazydev.nvim",
+    ft = "lua", -- only load on lua files
+    opts = {},
+  },
 }
 
--- configuration for lazy itself.
-local lazy_opts = {
+require("lazy").setup {
+  spec = plugin_specs,
   ui = {
     border = "rounded",
     title = "Plugin Manager",
     title_pos = "center",
   },
+  rocks = {
+    enabled = false,
+  },
 }
-
-require("lazy").setup(plugin_specs, lazy_opts)

lua/utils.lua

@@ -11,9 +11,8 @@ function M.executable(name)
 end
 
 --- check whether a feature exists in Nvim
---- @feat: string
----   the feature name, like `nvim-0.7` or `unix`.
---- return: bool
+--- @param feat string the feature name, like `nvim-0.7` or `unix`.
+--- @return boolean
 M.has = function(feat)
   if fn.has(feat) == 1 then
     return true
@@ -33,8 +32,9 @@ end
 
 --- Generate random integers in the range [Low, High], inclusive,
 --- adapted from https://stackoverflow.com/a/12739441/6064933
---- @low: the lower value for this range
---- @high: the upper value for this range
+--- @param low integer the lower value for this range
+--- @param high integer the upper value for this range
+--- @return integer
 function M.rand_int(low, high)
   -- Use lua to generate random int, see also: https://stackoverflow.com/a/20157671/6064933
   math.randomseed(os.time())
@@ -43,17 +43,11 @@ function M.rand_int(low, high)
 end
 
 --- Select a random element from a sequence/list.
---- @seq: the sequence to choose an element
+--- @param seq any[] the sequence to choose an element
 function M.rand_element(seq)
   local idx = M.rand_int(1, #seq)
 
   return seq[idx]
 end
 
-function M.add_pack(name)
-  local status, error = pcall(vim.cmd, "packadd " .. name)
-
-  return status
-end
-
 return M

spell/en.utf-8.add

@@ -467,3 +467,6 @@ pylintrc
 PYTHONPATH
 Uvicorn
 qpdf
+Elasticsearch
+kibana
+submodule

viml_conf/options.vim

@@ -1,11 +1,14 @@
 scriptencoding utf-8
 
 " change fillchars for folding, vertical split, end of buffer, and message separator
-set fillchars=fold:\ ,vert:\│,eob:\ ,msgsep:‾
+set fillchars=fold:\ ,foldsep:\ ,foldopen:,foldclose:,vert:\│,eob:\ ,msgsep:‾,diff:╱
 
 " Split window below/right when creating horizontal/vertical windows
 set splitbelow splitright
 
+" avoid the flickering when splitting window horizontal
+set splitkeep=screen
+
 " Time in milliseconds to wait for a mapped sequence to complete,
 " see https://unix.stackexchange.com/q/36882/221410 for more info
 set timeoutlen=500

viml_conf/plugins.vim

@@ -1,7 +1,7 @@
 scriptencoding utf-8
 
 " Plugin specification and lua stuff
-lua require('plugins')
+lua require('plugin_specs')
 
 " Use short names for common plugin manager commands to simplify typing.
 " To use these shortcuts: first activate command line with `:`, then input the
@@ -58,16 +58,6 @@ endif
 " Only fuzzy-search files names
 let g:Lf_DefaultMode = 'FullPath'
 
-" Popup window settings
-let w = float2nr(&columns * 0.8)
-if w > 140
-  let g:Lf_PopupWidth = 140
-else
-  let g:Lf_PopupWidth = w
-endif
-
-let g:Lf_PopupPosition = [0, float2nr((&columns - g:Lf_PopupWidth)/2)]
-
 " Do not use version control tool to list files under a directory since
 " submodules are not searched by default.
 let g:Lf_UseVersionControlTool = 0