Merge pull request #66 from jdhao/lsp

add config dir to workspace.library for lua lsp

.github/ISSUE_TEMPLATE/bug_report.md

@@ -8,7 +8,7 @@ assignees: ''
 
 <!-- Before reporting: make sure that you have read the doc (https://github.com/jdhao/nvim-config/tree/master/docs) and searched existing issues. -->
 
-- `nvim --version`:
+- `nvim --version`: <!--should be latest stable version: https://github.com/neovim/neovim/releases/tag/stable -->
 - terminal emulator and version:
 - Operating system/version:
 - Have you read and followed all steps in the [doc](https://github.com/jdhao/nvim-config/tree/master/docs):

.gitignore

@@ -2,6 +2,5 @@ tags
 en.utf-8.add.spl
 *.exe
 .netrwhist
-packer_compiled.lua
 *.log
 .DS_Store

.stylua.toml

@@ -0,0 +1,6 @@
+# config for stylua, ref: https://github.com/JohnnyMorganz/StyLua
+line_endings = "Unix"
+indent_type = "Spaces"
+indent_width = 2
+quote_style = "AutoPreferDouble"
+no_call_parentheses = true

README.md

@@ -22,7 +22,7 @@
       <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-0.7.0-blueviolet.svg?style=flat-square&logo=Neovim&logoColor=green" alt="Neovim minimum version"/>
+      <img src="https://img.shields.io/badge/Neovim-0.7.2-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"/>
@@ -36,26 +36,27 @@
 # Introduction
 
 This repo hosts my Nvim configuration for Linux, macOS, and Windows.
-`init.vim` is the config entry point for terminal Nvim,
+`init.lua` is the config entry point for terminal Nvim,
 and `ginit.vim` is the additional config file for [GUI client of Nvim](https://github.com/neovim/neovim/wiki/Related-projects#gui).
 
 My configurations are heavily documented to make it as clear as possible.
-While you can download the whole repository and use it, it is not recommended though.
+While you can clone the whole repository and use it, it is not recommended though.
 Good configurations are personal. Everyone should have his or her unique config file.
-You are encouraged to copy from this repo the part you feel useful and add it to your own Nvim config.
+You are encouraged to copy from this repo the part you want and add it to your own config.
+
+To reduce the possibility of breakage, **this config is only maintained for [the latest nvim stable release](https://github.com/neovim/neovim/releases/tag/stable).
+No effort is spent on maintaining backward compatibility.**
 
 # Install and setup
 
 See [doc here](docs/README.md) on how to install Nvim's dependencies, Nvim itself,
 and how to set up on different platforms (Linux, macOS, and Windows).
 
-**This config is tested against [Nvim v0.7.0 release](https://github.com/neovim/neovim/releases/tag/stable).
-No backward compatibility is guaranteed.**
-
 # Features #
 
 + Plugin management via [Packer.nvim](https://github.com/wbthomason/packer.nvim).
-+ Code auto-completion via [nvim-cmp](https://github.com/hrsh7th/nvim-cmp) and [nvim-lspconfig](https://github.com/neovim/nvim-lspconfig).
++ Code, snippet, word auto-completion via [nvim-cmp](https://github.com/hrsh7th/nvim-cmp).
++ Language server protocol (LSP) support via [nvim-lspconfig](https://github.com/neovim/nvim-lspconfig).
 + Git integration via [vim-fugitive](https://github.com/tpope/vim-fugitive).
 + Better escaping from insert mode via [better-escape.vim](https://github.com/jdhao/better-escape.vim).
 + Ultra-fast project-wide fuzzy searching via [LeaderF](https://github.com/Yggdroot/LeaderF).
@@ -63,40 +64,40 @@ No backward compatibility is guaranteed.**
 + Faster matching pair insertion and jump via [delimitMate](https://github.com/Raimondi/delimitMate).
 + 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).
-+ Ultra fast snippet insertion via [Ultisnips](https://github.com/SirVer/ultisnips).
-+ Beautiful status line via [lualine.nvim](https://github.com/nvim-lualine/lualine.nvim).
++ Powerful snippet insertion via [Ultisnips](https://github.com/SirVer/ultisnips).
++ Beautiful statusline via [lualine.nvim](https://github.com/nvim-lualine/lualine.nvim).
 + File tree explorer via [nvim-tree.lua](https://github.com/kyazdani42/nvim-tree.lua).
 + Better quickfix list with [nvim-bqf](https://github.com/kevinhwang91/nvim-bqf).
 + Show search index and count with [nvim-hlslens](https://github.com/kevinhwang91/nvim-hlslens).
 + Command line auto-completion via [wilder.nvim](https://github.com/gelguy/wilder.nvim).
-+ Keymap display via [which-key.nvim](https://github.com/folke/which-key.nvim).
++ User-defined mapping hint via [which-key.nvim](https://github.com/folke/which-key.nvim).
 + Asynchronous code execution via [asyncrun.vim](https://github.com/skywind3000/asyncrun.vim).
 + Code highlighting via [nvim-treesitter](https://github.com/nvim-treesitter/nvim-treesitter).
 + Code editing using true nvim inside browser via [firenvim](https://github.com/glacambre/firenvim).
 + Color theme via [vim-gruvbox8](https://github.com/lifepillar/vim-gruvbox8) and other beautiful themes.
 + Markdown writing and previewing via [vim-markdown](https://github.com/plasticboy/vim-markdown) and [markdown-preview.nvim](https://github.com/iamcco/markdown-preview.nvim).
++ LaTeX editing and previewing via [vimtex](https://github.com/lervag/vimtex) <sup id="a1">[1](#f1)</sup>.
 + Animated GUI style notification via [nvim-notify](https://github.com/rcarriga/nvim-notify).
 + Smooth scroll experience via [neoscroll](https://github.com/karb94/neoscroll.nvim).
 + 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)
-+ LaTeX editing via [vimtex](https://github.com/lervag/vimtex) <sup id="a1">[1](#f1)</sup>.
 + ......
 
 # UI Demo
 
-For more UI demos, see [here](https://github.com/jdhao/nvim-config/issues/15).
+For more UI demos, check [here](https://github.com/jdhao/nvim-config/issues/15).
 
-## Start screen with alpha-nvim
+## Start screen with dashboard-nvim
 
 <p align="center">
-<img src="https://user-images.githubusercontent.com/16662357/139459989-0537ded4-c119-4749-99bf-b551ca1ba118.jpg" width="800">
+<img src="https://user-images.githubusercontent.com/16662357/183256752-fb23b215-a6b8-4646-beed-9999f52d53f1.png" width="800">
 </p>
 
-## fuzzy finding using LeaderF
+## File fuzzy finding using LeaderF
 
 <p align="center">
-<img src="https://user-images.githubusercontent.com/16662357/139462025-7bce98c5-d2d5-413f-9659-20545865cdca.gif" width="800">
+<img src="https://user-images.githubusercontent.com/16662357/183257017-2d9d7605-3c4b-4e1d-8955-30998f9b6f28.gif" width="800">
 </p>
 
 ## Code autocompletion with nvim-cmp
@@ -139,45 +140,48 @@ Go to a string starting with `se`
 
 # Shortcuts
 
-Some of the shortcuts I use frequently is listed here. In the following shortcuts, `<leader>` represents ASCII character `,`.
+Some of the shortcuts I use frequently are listed here. In the following shortcuts, `<leader>` represents ASCII character `,`.
 
-| Shortcut          | Mode          | platform        | Description                                                      |
-|-------------------|---------------|-----------------|------------------------------------------------------------------|
-| `<leader>ff`      | Normal        | Linux/macOS/Win | Fuzzy file searching in a floating window                        |
-| `<leader>fh`      | Normal        | Linux/macOS/Win | Fuzzy help file grepping in a floating window                    |
-| `<leader>fg`      | Normal        | Linux/macOS/Win | Fuzzy project-wide grepping in a floating window                 |
-| `<leader>ft`      | Normal        | Linux/macOS/Win | Fuzzy buffer tag searching in a floating window                  |
-| `<leader>fb`      | Normal        | Linux/macOS/Win | Fuzzy buffer switching in a floating window                      |
-| `<leader><Space>` | Normal        | Linux/macOS/Win | Remove trailing white spaces                                     |
-| `<leader>v`       | Normal        | Linux/macOS/Win | Reselect last pasted text                                        |
-| `<leader>ev`      | Normal        | Linux/macOS/Win | Edit Nvim config in a new tabpage                                |
-| `<leader>sv`      | Normal        | Linux/macOS/Win | Reload Nvim config                                               |
-| `<leader>st`      | Normal        | Linux/macOS/Win | Show highlight group for cursor text                             |
-| `<leader>q`       | Normal        | Linux/macOS/Win | Quit current window                                              |
-| `<leader>Q`       | Normal        | Linux/macOS/Win | Quit all window and close Nvim                                   |
-| `<leader>w`       | Normal        | Linux/macOS/Win | Save current buffer content                                      |
-| `<leader>y`       | Normal        | Linux/macOS/Win | Copy the content of entire buffer to default register            |
-| `<leader>cl`      | Normal        | Linux/macOS/Win | Toggle cursor column                                             |
-| `<leader>cd`      | Normal        | Linux/macOS/Win | Change current working directory to to the dir of current buffer |
-| `<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                                                     |
-| `<F9>`            | Normal        | Linux/macOS/Win | Run current source file (for Python, C++)                        |
-| `<F11>`           | Normal        | Linux/macOS/Win | Toggle spell checking                                            |
-| `<F12>`           | Normal        | Linux/macOS/Win | Toggle paste mode                                                |
-| `\x`              | Normal        | Linux/macOS/Win | Close location or quickfix window                                |
-| `\d`              | Normal        | Linux/macOS/Win | Close current buffer and go to previous buffer                   |
-| `{count}gb`       | Normal        | Linux/macOS/Win | Go to buffer {count}  or next buffer in the buffer list.         |
-| `Alt-m`           | Normal        | macOS/Win       | Markdown previewing in system browser                            |
-| `Alt-Shift-m`     | Normal        | macOS/Win       | Stopping Markdown previewing in system browser                   |
-| `ob`              | Normal/Visual | macOS/Win       | Open link under cursor or search visual selection                |
-| `ctrl-u`          | Insert        | Linux/macOS/Win | Turn word under cursor to upper case                             |
-| `ctrl-t`          | Insert        | Linux/macOS/Win | Turn word under cursor to title case                             |
-| `jk`              | Insert        | Linux/macOS/Win | Return to Normal mode without lagging                            |
+| Shortcut          | Mode          | platform        | Description                                                              |
+|-------------------|---------------|-----------------|--------------------------------------------------------------------------|
+| `<leader>ff`      | Normal        | Linux/macOS/Win | Fuzzy file searching in a floating window                                |
+| `<leader>fh`      | Normal        | Linux/macOS/Win | Fuzzy help file grepping in a floating window                            |
+| `<leader>fg`      | Normal        | Linux/macOS/Win | Fuzzy project-wide grepping in a floating window                         |
+| `<leader>ft`      | Normal        | Linux/macOS/Win | Fuzzy buffer tag searching in a floating window                          |
+| `<leader>fb`      | Normal        | Linux/macOS/Win | Fuzzy buffer switching in a floating window                              |
+| `<leader><Space>` | Normal        | Linux/macOS/Win | Remove trailing white spaces                                             |
+| `<leader>v`       | Normal        | Linux/macOS/Win | Reselect last pasted text                                                |
+| `<leader>ev`      | Normal        | Linux/macOS/Win | Edit Nvim config in a new tabpage                                        |
+| `<leader>sv`      | Normal        | Linux/macOS/Win | Reload Nvim config                                                       |
+| `<leader>st`      | Normal        | Linux/macOS/Win | Show highlight group for cursor text                                     |
+| `<leader>q`       | Normal        | Linux/macOS/Win | Quit current window                                                      |
+| `<leader>Q`       | Normal        | Linux/macOS/Win | Quit all window and close Nvim                                           |
+| `<leader>w`       | Normal        | Linux/macOS/Win | Save current buffer content                                              |
+| `<leader>y`       | Normal        | Linux/macOS/Win | Copy the content of entire buffer to default register                    |
+| `<leader>cl`      | Normal        | Linux/macOS/Win | Toggle cursor column                                                     |
+| `<leader>cd`      | Normal        | Linux/macOS/Win | Change current working directory to to the dir of current buffer         |
+| `<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                                                             |
+| `<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                                                        |
+| `\x`              | Normal        | Linux/macOS/Win | Close location or quickfix window                                        |
+| `\d`              | Normal        | Linux/macOS/Win | Close current buffer and go to previous buffer                           |
+| `{count}gb`       | Normal        | Linux/macOS/Win | Go to buffer `{count}` or next buffer in the buffer list.                |
+| `{operator}iB`    | Normal        | Linux/macOS/Win | Operate in the whole buffer, `{operator}` can be `v`, `y`, `c`, `d` etc. |
+| `Alt-k`           | Normal        | Linux/macOS/Win | Move current line or selected lines up                                   |
+| `Alt-j`           | Normal        | Linux/macOS/Win | Move current line or selected lines down                                 |
+| `Alt-m`           | Normal        | macOS/Win       | Markdown previewing in system browser                                    |
+| `Alt-Shift-m`     | Normal        | macOS/Win       | Stopping Markdown previewing in system browser                           |
+| `ob`              | Normal/Visual | macOS/Win       | Open link under cursor or search visual selection                        |
+| `ctrl-u`          | Insert        | Linux/macOS/Win | Turn word under cursor to upper case                                     |
+| `ctrl-t`          | Insert        | Linux/macOS/Win | Turn word under cursor to title case                                     |
+| `jk`              | Insert        | Linux/macOS/Win | Return to Normal mode without lagging                                    |
 
 # Custom commands
 

after/ftplugin/javascript.vim

@@ -0,0 +1,8 @@
+" Disable inserting comment leader after hitting o or O or <Enter>
+set formatoptions-=o
+set formatoptions-=r
+
+set tabstop=2       " number of visual spaces per TAB
+set softtabstop=2   " number of spaces in tab when editing
+set shiftwidth=2    " number of spaces to use for autoindent
+set expandtab       " expand tab to spaces so that tabs are spaces

after/ftplugin/lua.vim

@@ -6,3 +6,5 @@ set tabstop=2       " number of visual spaces per TAB
 set softtabstop=2   " number of spaces in tab when editing
 set shiftwidth=2    " number of spaces to use for autoindent
 set expandtab       " expand tab to spaces so that tabs are spaces
+
+nnoremap <silent> <F9> :luafile %<CR>

after/ftplugin/vim.vim

@@ -16,3 +16,5 @@ set tabstop=2       " number of visual spaces per TAB
 set softtabstop=2   " number of spaces in tab when editing
 set shiftwidth=2    " number of spaces to use for autoindent
 set expandtab       " expand tab to spaces so that tabs are spaces
+
+nnoremap <silent> <F9> :source %<CR>

autoload/utils.vim

@@ -131,9 +131,11 @@ function! utils#Get_titlestr() abort
   if g:is_linux
       let l:title_str = hostname() . '  '
   endif
-  let l:title_str = l:title_str . expand('%:p:~') . '  '
-  if &buflisted
-    let l:title_str = l:title_str . strftime('%Y-%m-%d %H:%M',getftime(expand('%')))
+
+  let l:buf_path = expand('%:p:~')
+  let l:title_str = l:title_str . l:buf_path . '  '
+  if &buflisted && l:buf_path != ""
+    let l:title_str = l:title_str . strftime('%Y-%m-%d %H:%M:%S%z', getftime(expand('%')))
   endif
 
   return l:title_str

core/autocommands.vim

@@ -135,3 +135,23 @@ augroup auto_create_dir
   autocmd!
   autocmd BufWritePre * lua require('utils').may_create_dir()
 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

core/globals.vim

@@ -37,7 +37,9 @@ let g:mapleader = ','
 let g:vimsyn_embed = 'l'
 
 " Use English as main language
-language en_US.utf-8
+if !g:is_mac
+  language en_US.utf-8
+endif
 
 " use filetype.lua instead of filetype.vim
 let g:do_filetype_lua = 1
@@ -69,4 +71,7 @@ let g:loaded_tutor_mode_plugin = 1  " do not load the tutor plugin
 let g:loaded_matchit = 1
 let g:loaded_matchparen = 1
 "}}
+
+" Disable sql omni completion, it is broken.
+let g:loaded_sql_completion = 1
 "}

core/mappings.vim

@@ -87,7 +87,7 @@ xnoremap > >gv
 inoremap <expr> <tab> pumvisible() ? "\<c-n>" : "\<tab>"
 inoremap <expr> <s-tab> pumvisible() ? "\<c-p>" : "\<s-tab>"
 
-" Edit and reload init.vim quickly
+" Edit and reload nvim config file quickly
 nnoremap <silent> <leader>ev :<C-U>tabnew $MYVIMRC <bar> tcd %:h<cr>
 nnoremap <silent> <leader>sv :<C-U>silent update $MYVIMRC <bar> source $MYVIMRC <bar>
       \ call v:lua.vim.notify("Nvim config successfully reloaded!", 'info', {'title': 'nvim-config'})<cr>
@@ -95,13 +95,12 @@ nnoremap <silent> <leader>sv :<C-U>silent update $MYVIMRC <bar> source $MYVIMRC
 " Reselect the text that has just been pasted, see also https://stackoverflow.com/a/4317090/6064933.
 nnoremap <expr> <leader>v printf('`[%s`]', getregtype()[0])
 
+" Always use very magic mode for searching
+nnoremap / /\v
+
 " Search in selected region
 xnoremap / :<C-U>call feedkeys('/\%>'.(line("'<")-1).'l\%<'.(line("'>")+1)."l")<CR>
 
-" Find and replace (like Sublime Text 3)
-nnoremap <C-H> :%s/
-xnoremap <C-H> :s/
-
 " Change current working directory locally and print cwd after that,
 " see https://vim.fandom.com/wiki/Set_working_directory_to_the_current_file
 nnoremap <silent> <leader>cd :<C-U>lcd %:p:h<CR>:pwd<CR>
@@ -168,6 +167,7 @@ onoremap <silent> iB :<C-U>call text_obj#Buffer()<CR>
 
 " Do not move my cursor when joining lines.
 nnoremap J mzJ`z
+nnoremap gJ mzgJ`z
 
 " Break inserted text into smaller undo units.
 for ch in [',', '.', '!', '?', ';', ':']
@@ -190,3 +190,6 @@ function! s:restore_cursor() abort
   silent! normal `y
   silent! delmarks y
 endfunction
+
+" for mappings defined in lua
+lua require('custom-map')

core/options.vim

@@ -112,6 +112,9 @@ set shortmess+=c
 " choice, IMHO.
 set shortmess+=S
 
+" Disable showing intro message (:intro)
+set shortmess+=I
+
 " Completion behaviour
 " set completeopt+=noinsert  " Auto select the first completion entry
 set completeopt+=menuone  " Show menu even if there is only one item
@@ -120,7 +123,7 @@ 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 winblend=5  " pseudo transparency for floating window
+set winblend=0  " pseudo transparency for floating window
 
 " Insert mode key word completion setting
 set complete+=kspell complete-=w complete-=b complete-=u complete-=t

core/plugins.vim

@@ -101,7 +101,7 @@ nnoremap <silent> <leader>ft :<C-U>Leaderf bufTag --popup<CR>
 nnoremap <silent> <leader>fb :<C-U>Leaderf buffer --popup<CR>
 
 " Search recent files
-nnoremap <silent> <leader>fr :<C-U>Leaderf mru --popup<CR>
+nnoremap <silent> <leader>fr :<C-U>Leaderf mru --popup --absolute-path<CR>
 
 let g:Lf_PopupColorscheme = 'gruvbox_material'
 
@@ -292,7 +292,6 @@ if ( g:is_win || g:is_mac ) && executable('latex')
   " Viewer settings for different platforms
   if g:is_win
     let g:vimtex_view_general_viewer = 'SumatraPDF'
-    let g:vimtex_view_general_options_latexmk = '-reuse-instance'
     let g:vimtex_view_general_options = '-reuse-instance -forward-search @tex @line @pdf'
   endif
 
@@ -372,9 +371,16 @@ if exists('g:started_by_firenvim') && g:started_by_firenvim
       \ }
   \ }
 
+  function! s:setup_firenvim() abort
+    set noruler noshowcmd
+    set laststatus=0 showtabline=0
+  endfunction
+
   augroup firenvim
     autocmd!
-    autocmd BufEnter *.txt setlocal filetype=markdown laststatus=0 nonumber noshowcmd noruler showtabline=1
+    autocmd FileType text call s:setup_firenvim()
+    autocmd BufNewFile github.com_*.txt set filetype=markdown
+    autocmd BufNewFile stackoverflow.com_*.txt set filetype=markdown
   augroup END
 endif
 
@@ -426,3 +432,6 @@ function! s:wilder_init() abort
     echohl Error |echomsg "Wilder.nvim missing: run :PackerSync to fix."|echohl None
   endtry
 endfunction
+
+""""""""""""""""""""""""""""""vim-auto-save settings""""""""""""""""""""""""""""""
+let g:auto_save = 1  " enable AutoSave on Vim startup

core/themes.vim

@@ -54,6 +54,13 @@ function! s:theme_setup_dict.kanagawa() dict abort
   colorscheme kanagawa
 endfunction
 
+function! s:theme_setup_dict.catppuccin() dict abort
+  let g:catppuccin_flavour = "frappe" " latte, frappe, macchiato, mocha
+
+  lua require("catppuccin").setup()
+  colorscheme catppuccin
+endfunction
+
 " Theme to directory name mapping, because theme repo name is not necessarily
 " the same as the theme name itself.
 let s:theme2dir = {
@@ -67,6 +74,7 @@ let s:theme2dir = {
       \ 'everforest' :'everforest',
       \ 'nightfox': 'nightfox.nvim',
       \ 'kanagawa': 'kanagawa.nvim',
+      \ 'catppuccin': 'catppuccin'
       \ }
 
 let s:theme = utils#RandElement(keys(s:theme2dir))
@@ -85,7 +93,7 @@ if !s:status
 endif
 
 execute 'call ' . s:colorscheme_func
-if g:logging_level == 'info'
+if g:logging_level == 'debug'
   let s:msg1 = "Colorscheme: " . s:theme
   call v:lua.vim.notify(s:msg1, 'info', {'title': 'nvim-config'})
 endif

docs/README.md

@@ -2,9 +2,44 @@ This doc summarizes how to install and use this configuration in detail.
 
 # Pre-requisite
 
+## Terminal emulators
+
+Which [terminal emulator](https://en.wikipedia.org/wiki/Terminal_emulator) we choose to use greatly affects the appearance and features of Nvim.
+Since Nvim supports true colors, terminals that support true colors are preferred.
+For a list of terminals that support true colors, see [here](https://github.com/termstandard/colors).
+
+For macOS, we can use [kitty](https://sw.kovidgoyal.net/kitty/), [iterm2](https://www.iterm2.com/), [wezterm](https://wezfurlong.org/wezterm/) or [Alacritty](https://github.com/jwilm/alacritty).
+
+If you ssh to Linux server on Windows, I recommend [wsltty](https://github.com/mintty/wsltty) and [Cygwin](https://www.cygwin.com/),
+both of them use [mintty](https://github.com/mintty/mintty) as the terminal emulator.
+For the latest version of Windows 10, you can also try [Windows Terminal](https://github.com/microsoft/terminal).
+
+## Patched Fonts
+
+Since statusline or file explorer plugins often use Unicode symbols not available in normal font,
+we need to install a patched font from the [nerd-fonts](https://github.com/ryanoasis/nerd-fonts) project.
+
+# Automatic installation
+
+## Automatic Installation for Linux
+
+To set up a workable Nvim environment on Linux,
+I use [a bash script](nvim_setup_linux.sh) to automatically install necessary dependencies, Nvim itself and configs.
+
+Note that the variable `PYTHON_INSTALLED`, `SYSTEM_PYTHON` and `ADD_TO_SYSTEM_PATH` in the script
+should be set properly based on your environment.
+
+## Automatic installation for Windows
+
+Run script [nvim_setup_windows.ps1](nvim_setup_windows.ps1) under PowerShell.
+
+# Manual install
+
 There are a few dependencies if we want to use Nvim for efficient editing and development work.
 
-## Python
+## Dependencies
+
+### Python
 
 A lot of Nvim plugins are mainly written in Python, so we must install Python 3.
 The easiest way to install is via [Anaconda](https://docs.anaconda.com/anaconda/install/index.html) or [Miniconda](https://docs.conda.io/en/latest/miniconda.html).
@@ -12,7 +47,7 @@ The easiest way to install is via [Anaconda](https://docs.anaconda.com/anaconda/
 After installation, make sure that you can run `python --version`,
 and that the output should be Python 3.x.
 
-## Pynvim
+### Pynvim
 
 Nvim relies on [pynvim](https://github.com/neovim/pynvim) to communicate with plugins that utilize its Python binding.
 Pynvim is required by plugins such as [wilder.nvim](https://github.com/gelguy/wilder.nvim).
@@ -21,7 +56,7 @@ Pynvim is required by plugins such as [wilder.nvim](https://github.com/gelguy/wi
 pip install -U pynvim
 ```
 
-## python-lsp-server
+### python-lsp-server
 
 [python-lsp-server (pylsp)](https://github.com/python-lsp/python-lsp-server) is a Python [Language Server](https://microsoft.github.io/language-server-protocol/) for completion, linting, go to definition, etc.
 
@@ -33,7 +68,7 @@ Note the executable for pylsp is also named `pylsp`. You need to set its PATH co
 If you use pip from Anaconda, the executable path may be something like `$CONDA_ROOT/bin/pylsp`.
 For native python, the path for pylsp may be like `$HOME/.local/bin/pylsp`
 
-## Node
+### Node
 
 We need to install node.js from [here](https://nodejs.org/en/download/).
 For Linux, you can use the following script:
@@ -60,7 +95,7 @@ source ~/.bash_profile
 # source ~/.zshrc
 ```
 
-## vim-language-server
+### vim-language-server
 
 [vim-language-server](https://github.com/iamcco/vim-language-server) provides completion for vim script. We can install vim-language-server globally:
 
@@ -70,7 +105,7 @@ npm install -g vim-language-server
 
 vim-language-server is installed in the same directory as the node executable.
 
-## Git
+### Git
 
 Git is required by plugin manager [packer.nvim](https://github.com/wbthomason/packer.nvim) and other git-related plugins.
 
@@ -79,7 +114,7 @@ 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
+### 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.
@@ -102,7 +137,7 @@ choco install universal-ctags
 
 Set its PATH properly and make sure you can run `ctags` from command line.
 
-## Ripgrep
+### Ripgrep
 
 [Ripgrep](https://github.com/BurntSushi/ripgrep), aka, `rg`, is a fast grepping tool available for both Linux, Windows and macOS.
 It is used by several searching plugins.
@@ -112,7 +147,7 @@ For Linux, we can download the [binary release](https://github.com/BurntSushi/ri
 
 Set its PATH properly and make sure you can run `rg` from command line.
 
-## Linters
+### Linters
 
 A linter is a tool to check the source code for possible style and syntax issues.
 Based on the programming languages we use, we may need to install various linters.
@@ -122,35 +157,18 @@ Based on the programming languages we use, we may need to install various linter
 
 Set their PATH properly and make sure you can run `pylint`, `flake8` and `vint` from command line.
 
-## Terminal emulators
-
-Which [terminal emulator](https://en.wikipedia.org/wiki/Terminal_emulator) we choose to use greatly affects the appearance and features of Nvim.
-Since Nvim supports true colors, terminals that support true colors are preferred.
-For a list of terminals that support true colors, see [here](https://github.com/termstandard/colors).
-
-For macOS, we can use [kitty](https://sw.kovidgoyal.net/kitty/), [iterm2](https://www.iterm2.com/), [wezterm](https://wezfurlong.org/wezterm/) or [Alacritty](https://github.com/jwilm/alacritty).
-
-If you ssh to Linux server on Windows, I recommend [wsltty](https://github.com/mintty/wsltty) and [Cygwin](https://www.cygwin.com/),
-both of them use [mintty](https://github.com/mintty/mintty) as the terminal emulator.
-For the latest version of Windows 10, you can also try [Windows Terminal](https://github.com/microsoft/terminal).
-
-## Patched Fonts
-
-Since statusline or file explorer plugins often use Unicode symbols not available in normal font,
-we need to install a patched font from the [nerd-fonts](https://github.com/ryanoasis/nerd-fonts) project.
-
-# Install Nvim
+## Install Nvim
 
 There are various ways to install Nvim depending on your system.
-Current configuration is tested against nvim v0.7.0.
+This config is only maintained for [the latest nvim stable release](https://github.com/neovim/neovim/releases/tag/stable).
 
-## Linux
+### Linux
 
-We can directly download the binary release from [here](https://github.com/neovim/neovim/releases/download/stable/nvim-linux64.tar.gz).
+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 latest version may not be available.
+but that is not reliable since the latest version may not be available.
 
-## Windows
+### Windows
 
 You may download from [nvim release](https://github.com/neovim/neovim/releases/download/stable/nvim-win64.zip) from GitHub and manually extract it.
 
@@ -164,7 +182,7 @@ choco install neovim
 # scoop install neovim
 ```
 
-## macOS
+### macOS
 
 It is recommended to install neovim via [Homebrew](https://brew.sh/) on macOS. Simply run the following command:
 
@@ -173,11 +191,13 @@ brew install neovim
 ```
 
 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.
+**Make sure that you can run `nvim` from the command line after all these setups**.
 
-# Setting up Nvim
+## Setting up Nvim
 
-## Install plugin manager packer.nvim
+After installing nvim and all the dependencies, we will install plugin managers and set up this config.
+
+### Install plugin manager packer.nvim
 
 I use packer.nvim to manage my plugins. We need to install packer.nvim on our system first.
 
@@ -193,7 +213,7 @@ For macOS and Linux, run the following command:
 git clone --depth=1 https://github.com/wbthomason/packer.nvim ~/.local/share/nvim/site/pack/packer/opt/packer.nvim
 ```
 
-## How to install this configuration
+### How to install this configuration
 
 On Linux and macOS, the directory is `~/.config/nvim`.
 On Windows, the config directory is `$HOME/AppData/Local/nvim`[^1].
@@ -207,18 +227,4 @@ git clone --depth=1 https://github.com/jdhao/nvim-config.git .
 After that, when we first open nvim, run command `:PackerSync` to install all the plugins.
 Since I use quite a lot of plugins (more than 60), it may take some time to install all of them.
 
-# Automatic installation
-
-## Automatic Installation for Linux #
-
-To set up a workable Nvim environment on Linux,
-I use [a bash script](nvim_setup_linux.sh) to automatically install necessary dependencies, Nvim itself and configs.
-
-Note that the variable `PYTHON_INSTALLED`, `SYSTEM_PYTHON` and `ADD_TO_SYSTEM_PATH` in the script
-should be set properly based on your environment.
-
-## Automatic installation for Windows
-
-Run script [nvim_setup_windows.ps1](nvim_setup_windows.ps1) under PowerShell.
-
 [^1]: Use `echo %userprofile%` to see where your `$HOME` is.

docs/nvim_install_mac.sh

@@ -9,8 +9,9 @@ if [[ ! -d "$HOME/tools/"  ]]; then
 fi
 
 # Delete existing nvim installation.
-if [[ -d "$HOME/tools/nvim-osx64" ]]; then
-    rm -rf "$HOME/tools/nvim-osx64"
+# For newer release, the directory name is nvim-macos
+if [[ -d "$HOME/tools/nvim-macos" ]]; then
+    rm -rf "$HOME/tools/nvim-macos"
 fi
 
 # Extract the tar ball

docs/nvim_setup_linux.sh

@@ -120,6 +120,35 @@ fi
 # Install bash-language-server
 "$NODE_DIR/bin/npm" install -g bash-language-server
 
+#######################################################################
+#                         lua-language-server                         #
+#######################################################################
+SUMNEKO_LUA_DIR=$HOME/tools/lua-language-server
+SUMNEKO_LUA_SRC_NAME=$HOME/packages/lua-language-server.tar.gz
+SUMNEKO_LUA_LINK="https://github.com/sumneko/lua-language-server/releases/download/3.5.3/lua-language-server-3.5.3-linux-x64.tar.gz"
+
+if [[ -z "$(command -v lua-language-server)" ]] && [[ ! -f "$SUMNEKO_LUA_DIR/bin/lua-language-server" ]]; then
+    echo 'Install lua-language-server'
+    if [[ ! -f $SUMNEKO_LUA_SRC_NAME ]]; then
+        echo "Downloading lua-language-server and renaming"
+        wget $SUMNEKO_LUA_LINK -O "$SUMNEKO_LUA_SRC_NAME"
+    fi
+
+    if [[ ! -d "$SUMNEKO_LUA_DIR" ]]; then
+        echo "Creating lua-language-server directory under tools directory"
+        mkdir -p "$SUMNEKO_LUA_DIR"
+        echo "Extracting to directory $SUMNEKO_LUA_DIR"
+
+        tar zxvf "$SUMNEKO_LUA_SRC_NAME" -C "$SUMNEKO_LUA_DIR"
+    fi
+
+    if [[ "$ADD_TO_SYSTEM_PATH" = true ]] && [[ "$USE_BASH_SHELL" = true ]]; then
+        echo "export PATH=\"$SUMNEKO_LUA_DIR/bin:\$PATH\"" >> "$HOME/.bash_profile"
+    fi
+else
+    echo "lua-language-server is already installed. Skip installing it."
+fi
+
 #######################################################################
 #                            Ripgrep part                             #
 #######################################################################
@@ -145,8 +174,8 @@ if [[ -z "$(command -v rg)" ]] && [[ ! -f "$RIPGREP_DIR/rg" ]]; then
     fi
 
     # set up manpath and zsh completion for ripgrep
-    mkdir -p $HOME/tools/ripgrep/doc/man/man1
-    mv $HOME/tools/ripgrep/doc/rg.1 $HOME/tools/ripgrep/doc/man/man1
+    mkdir -p "$HOME/tools/ripgrep/doc/man/man1"
+    mv "$HOME/tools/ripgrep/doc/rg.1" "$HOME/tools/ripgrep/doc/man/man1"
 
     if [[ "$USE_BASH_SHELL" = true ]]; then
         echo 'export MANPATH=$HOME/tools/ripgrep/doc/man:$MANPATH' >> "$HOME/.bash_profile"
@@ -222,8 +251,10 @@ fi
 git clone --depth=1 https://github.com/jdhao/nvim-config.git "$NVIM_CONFIG_DIR"
 
 echo "Installing packer.nvim"
-git clone --depth=1 https://github.com/wbthomason/packer.nvim \
-    ~/.local/share/nvim/site/pack/packer/opt/packer.nvim
+if [[ ! -d ~/.local/share/nvim/site/pack/packer/opt/packer.nvim ]]; then
+    git clone --depth=1 https://github.com/wbthomason/packer.nvim \
+        ~/.local/share/nvim/site/pack/packer/opt/packer.nvim
+fi
 
 echo "Installing nvim plugins, please wait"
 "$NVIM_DIR/bin/nvim" -c "autocmd User PackerComplete quitall" -c "PackerSync"

init.lua

@@ -0,0 +1,37 @@
+-- This is my personal Nvim configuration supporting Mac, Linux and Windows, with various plugins configured.
+-- This configuration evolves as I learn more about Nvim and become more proficient in using Nvim.
+-- Since it is very long (more than 1000 lines!), you should read it carefully and take only the settings that suit you.
+-- I would not recommend cloning this repo and replace your own config. Good configurations are personal,
+-- built over time with a lot of polish.
+--
+-- Author: Jie-dong Hao
+-- Email: jdhao@hotmail.com
+-- Blog: https://jdhao.github.io/
+
+  -- check if we have the latest stable version of nvim
+local expected_ver = "0.7.2"
+
+local utils = require "utils"
+local nvim_ver = utils.get_nvim_version()
+
+if nvim_ver ~= expected_ver then
+  local msg = string.format("Unsupported nvim version: expect %s, but got %s instead!", expected_ver, nvim_ver)
+  vim.api.nvim_echo({ { msg, "ErrorMsg" } }, false, {})
+  return
+end
+
+local core_conf_files = {
+  "globals.vim",
+  "options.vim",
+  "autocommands.vim",
+  "mappings.vim",
+  "plugins.vim",
+  "themes.vim",
+}
+
+-- source all the core config files
+for _, name in ipairs(core_conf_files) do
+  local path = string.format("%s/core/%s", vim.fn.stdpath('config'), name)
+  local source_cmd = "source " .. path
+  vim.cmd(source_cmd)
+end

init.vim

@@ -1,22 +0,0 @@
-" This is my personal Nvim configuration supporting Mac, Linux and Windows, with various plugins configured.
-" This configuration evolves as I learn more about Nvim and become more proficient in using Nvim.
-" Since it is very long (more than 1000 lines!), you should read it carefully and take only the settings that suit you.
-" I would not recommend cloning this repo and replace your own config. Good configurations are personal,
-" built over time with a lot of polish.
-"
-" Author: Jie-dong Hao
-" Email: jdhao@hotmail.com
-" Blog: https://jdhao.github.io/
-
-let s:core_conf_files = [
-      \ 'globals.vim',
-      \ 'options.vim',
-      \ 'autocommands.vim',
-      \ 'mappings.vim',
-      \ 'plugins.vim',
-      \ 'themes.vim'
-      \ ]
-
-for s:fname in s:core_conf_files
-  execute printf('source %s/core/%s', stdpath('config'), s:fname)
-endfor

lua/config/alpha-nvim.lua

@@ -1,32 +0,0 @@
-local alpha = require("alpha")
-local dashboard = require("alpha.themes.dashboard")
-
--- Set header
-dashboard.section.header.val = {
-    "                                                     ",
-    "  ███╗   ██╗███████╗ ██████╗ ██╗   ██╗██╗███╗   ███╗ ",
-    "  ████╗  ██║██╔════╝██╔═══██╗██║   ██║██║████╗ ████║ ",
-    "  ██╔██╗ ██║█████╗  ██║   ██║██║   ██║██║██╔████╔██║ ",
-    "  ██║╚██╗██║██╔══╝  ██║   ██║╚██╗ ██╔╝██║██║╚██╔╝██║ ",
-    "  ██║ ╚████║███████╗╚██████╔╝ ╚████╔╝ ██║██║ ╚═╝ ██║ ",
-    "  ╚═╝  ╚═══╝╚══════╝ ╚═════╝   ╚═══╝  ╚═╝╚═╝     ╚═╝ ",
-    "                                                     ",
-}
-
--- Set menu
-dashboard.section.buttons.val = {
-    dashboard.button( "Leader f f", "  > Find file", ":Leaderf file --popup<CR>"),
-    dashboard.button( "Leader f r", "  > Recent files"   , ":Leaderf mru --popup<CR>"),
-    dashboard.button( "Leader f g", "  > Project grep" , ":Leaderf rg --popup<CR>"),
-    dashboard.button( "u", "  > Update plugins" , ":PackerSync<CR>"),
-    dashboard.button( "e", "  > New file" , ":enew <CR>"),
-    dashboard.button( "q", "  > Quit NVIM", ":qa<CR>"),
-}
-
-local fortune = require("alpha.fortune")
-dashboard.section.footer.val = fortune()
-
-alpha.setup(dashboard.opts)
-
--- Send config to alpha
-alpha.setup(dashboard.opts)

lua/config/autosave.lua

@@ -1,15 +0,0 @@
-require("autosave").setup({
-	enabled = true,
-	execution_message = "Autosaved at " .. vim.fn.strftime("%H:%M:%S"),
-	events = { "InsertLeave", "TextChanged" },
-	conditions = {
-		exists = true,
-		filename_is_not = {"plugins.lua"},
-		filetype_is_not = {},
-		modifiable = true,
-	},
-	write_all_buffers = false,
-	on_off_commands = true,
-	clean_command_line_interval = 1000,
-	debounce_delay = 135,
-})

lua/config/dashboard-nvim.lua

@@ -0,0 +1,65 @@
+local dashboard = require("dashboard")
+
+dashboard.custom_header = {
+  "                                                       ",
+  "                                                       ",
+  "                                                       ",
+  " ███╗   ██╗ ███████╗ ██████╗  ██╗   ██╗ ██╗ ███╗   ███╗",
+  " ████╗  ██║ ██╔════╝██╔═══██╗ ██║   ██║ ██║ ████╗ ████║",
+  " ██╔██╗ ██║ █████╗  ██║   ██║ ██║   ██║ ██║ ██╔████╔██║",
+  " ██║╚██╗██║ ██╔══╝  ██║   ██║ ╚██╗ ██╔╝ ██║ ██║╚██╔╝██║",
+  " ██║ ╚████║ ███████╗╚██████╔╝  ╚████╔╝  ██║ ██║ ╚═╝ ██║",
+  " ╚═╝  ╚═══╝ ╚══════╝ ╚═════╝    ╚═══╝   ╚═╝ ╚═╝     ╚═╝",
+  "                                                       ",
+  "                                                       ",
+  "                                                       ",
+  "                                                       ",
+}
+
+dashboard.custom_center = {
+  {
+    icon = "  ",
+    desc = "Find  File                              ",
+    action = "Leaderf file --popup",
+    shortcut = "<Leader> f f",
+  },
+  {
+    icon = "  ",
+    desc = "Recently opened files                   ",
+    action = "Leaderf mru --popup",
+    shortcut = "<Leader> f r",
+  },
+  {
+    icon = "  ",
+    desc = "Project grep                            ",
+    action = "Leaderf rg --popup",
+    shortcut = "<Leader> f g",
+  },
+  {
+    icon = "  ",
+    desc = "Open Nvim config                        ",
+    action = "tabnew $MYVIMRC | tcd %:p:h",
+    shortcut = "<Leader> e v",
+  },
+  {
+    icon = "  ",
+    desc = "New file                                ",
+    action = "enew",
+    shortcut = "e           ",
+  },
+  {
+    icon = "  ",
+    desc = "Quit Nvim                               ",
+    -- desc = "Quit Nvim                               ",
+    action = "qa",
+    shortcut = "q           "
+  }
+}
+
+vim.cmd([[
+  augroup dashboard_enter
+    au!
+    autocmd FileType dashboard nnoremap <buffer> q :qa<CR>
+    autocmd FileType dashboard nnoremap <buffer> e :enew<CR>
+  augroup END
+]])

lua/config/fidget-nvim.lua

@@ -0,0 +1 @@
+require"fidget".setup{}

lua/config/hlslens.lua

@@ -3,19 +3,32 @@ require('hlslens').setup({
     nearest_only = true,
 })
 
-vim.api.nvim_set_keymap(
-  "n",
-  "n",
-  "<Cmd>execute('normal! ' . v:count1 . 'nzzzv')<CR><Cmd>lua require('hlslens').start()<CR>",
-  { noremap = true, silent = true }
-)
+local activate_hlslens = function(direction)
+  local cmd = string.format("normal! %s%szzzv", vim.v.count1, direction)
+  local status, msg = pcall(vim.fn.execute, cmd)
+  -- 13 is the index where real error message starts
+  msg = msg:sub(13)
 
-vim.api.nvim_set_keymap(
-  "n",
-  "N",
-  "<Cmd>execute('normal! ' . v:count1 . 'Nzzzv')<CR><Cmd>lua require('hlslens').start()<CR>",
-  { noremap = true, silent = true }
-)
+  if not status then
+    vim.api.nvim_echo({{msg, "ErrorMsg"}}, false, {})
+    return
+  end
+  require('hlslens').start()
+end
 
-vim.api.nvim_set_keymap("n", "*", "<Plug>(asterisk-z*)<Cmd>lua require('hlslens').start()<CR>", { silent = true })
-vim.api.nvim_set_keymap("n", "#", "<Plug>(asterisk-z#)<Cmd>lua require('hlslens').start()<CR>", { silent = true })
+vim.keymap.set('n', 'n', '',
+{
+  noremap = true,
+  silent = true,
+  callback = function() activate_hlslens('n') end
+})
+
+vim.keymap.set('n', 'N', '',
+{
+  noremap = true,
+  silent = true,
+  callback = function() activate_hlslens('N') end
+})
+
+vim.keymap.set('n', '*', "<Plug>(asterisk-z*)<Cmd>lua require('hlslens').start()<CR>", { silent = true })
+vim.keymap.set('n', '#', "<Plug>(asterisk-z#)<Cmd>lua require('hlslens').start()<CR>", { silent = true })

lua/config/lsp.lua

@@ -1,21 +1,9 @@
+local fn = vim.fn
 local api = vim.api
 local lsp = vim.lsp
 
 local utils = require("utils")
 
-local M = {}
-
-function M.show_line_diagnostics()
-  local opts = {
-    focusable = false,
-    close_events = { "BufLeave", "CursorMoved", "InsertEnter", "FocusLost" },
-    border = 'rounded',
-    source = 'always',  -- show source in diagnostic popup window
-    prefix = ' '
-  }
-  vim.diagnostic.open_float(nil, opts)
-end
-
 local custom_attach = function(client, bufnr)
   -- Mappings.
   local opts = { silent = true, buffer = bufnr }
@@ -25,7 +13,7 @@ local custom_attach = function(client, bufnr)
   vim.keymap.set("n", "<C-k>", vim.lsp.buf.signature_help, opts)
   vim.keymap.set("n", "<space>wa", vim.lsp.buf.add_workspace_folder, opts)
   vim.keymap.set("n", "<space>wr", vim.lsp.buf.remove_workspace_folder, opts)
-  vim.keymap.set("n", "<space>wl", function() print(vim.inspect(vim.lsp.buf.list_workspace_folders())) end, opts)
+  vim.keymap.set("n", "<space>wl", function() inspect(vim.lsp.buf.list_workspace_folders()) end, opts)
   vim.keymap.set("n", "<space>rn", vim.lsp.buf.rename, opts)
   vim.keymap.set("n", "gr", vim.lsp.buf.references, opts)
   vim.keymap.set("n", "[d", vim.diagnostic.goto_prev, opts)
@@ -33,9 +21,31 @@ local custom_attach = function(client, bufnr)
   vim.keymap.set("n", "<space>q", function() vim.diagnostic.setqflist({open = true}) end, opts)
   vim.keymap.set("n", "<space>ca", vim.lsp.buf.code_action, opts)
 
-  vim.cmd([[
-    autocmd CursorHold <buffer> lua require('config.lsp').show_line_diagnostics()
-  ]])
+  api.nvim_create_autocmd("CursorHold", {
+    buffer=bufnr,
+    callback = function()
+      local float_opts = {
+        focusable = false,
+        close_events = { "BufLeave", "CursorMoved", "InsertEnter", "FocusLost" },
+        border = 'rounded',
+        source = 'always',  -- show source in diagnostic popup window
+        prefix = ' '
+      }
+
+      if not vim.b.diagnostics_pos then
+        vim.b.diagnostics_pos = { nil, nil }
+      end
+
+      local cursor_pos = api.nvim_win_get_cursor(0)
+      if (cursor_pos[1] ~= vim.b.diagnostics_pos[1] or cursor_pos[2] ~= vim.b.diagnostics_pos[2]) and
+        #vim.diagnostic.get() > 0
+      then
+          vim.diagnostic.open_float(nil, float_opts)
+      end
+
+      vim.b.diagnostics_pos = cursor_pos
+    end
+  })
 
   -- Set some key bindings conditional on server capabilities
   if client.resolved_capabilities.document_formatting then
@@ -138,36 +148,30 @@ if utils.executable('bash-language-server') then
   })
 end
 
-local sumneko_binary_path = vim.fn.exepath("lua-language-server")
-if vim.g.is_mac or vim.g.is_linux and sumneko_binary_path ~= "" then
-  local sumneko_root_path = vim.fn.fnamemodify(sumneko_binary_path, ":h:h:h")
-
-  local runtime_path = vim.split(package.path, ";")
-  table.insert(runtime_path, "lua/?.lua")
-  table.insert(runtime_path, "lua/?/init.lua")
-
+if utils.executable("lua-language-server") then
+  -- settings for lua-language-server can be found on https://github.com/sumneko/lua-language-server/wiki/Settings .
   lspconfig.sumneko_lua.setup({
     on_attach = custom_attach,
-    cmd = { sumneko_binary_path, "-E", sumneko_root_path .. "/main.lua" },
     settings = {
       Lua = {
         runtime = {
           -- Tell the language server which version of Lua you're using (most likely LuaJIT in the case of Neovim)
           version = "LuaJIT",
-          -- Setup your lua path
-          path = runtime_path,
         },
         diagnostics = {
           -- Get the language server to recognize the `vim` global
           globals = { "vim" },
         },
         workspace = {
-          -- Make the server aware of Neovim runtime files
-          library = api.nvim_get_runtime_file("", true),
-        },
-        -- Do not send telemetry data containing a randomized but unique identifier
-        telemetry = {
-          enable = false,
+          -- Make the server aware of Neovim runtime files,
+          -- see also https://github.com/sumneko/lua-language-server/wiki/Libraries#link-to-workspace .
+          -- Lua-dev.nvim also has similar settings for sumneko lua, https://github.com/folke/lua-dev.nvim/blob/main/lua/lua-dev/sumneko.lua .
+          library = {
+            fn.stdpath('data') .. "/site/pack/packer/opt/emmylua-nvim",
+            fn.stdpath('config'),
+          },
+          maxPreload = 2000,
+          preloadFileSize = 50000,
         },
       },
     },
@@ -176,10 +180,10 @@ if vim.g.is_mac or vim.g.is_linux and sumneko_binary_path ~= "" then
 end
 
 -- Change diagnostic signs.
-vim.fn.sign_define("DiagnosticSignError", { text = "✗", texthl = "DiagnosticSignError" })
-vim.fn.sign_define("DiagnosticSignWarn", { text = "!", texthl = "DiagnosticSignWarn" })
-vim.fn.sign_define("DiagnosticSignInformation", { text = "", texthl = "DiagnosticSignInfo" })
-vim.fn.sign_define("DiagnosticSignHint", { text = "", texthl = "DiagnosticSignHint" })
+fn.sign_define("DiagnosticSignError", { text = "✗", texthl = "DiagnosticSignError" })
+fn.sign_define("DiagnosticSignWarn", { text = "!", texthl = "DiagnosticSignWarn" })
+fn.sign_define("DiagnosticSignInformation", { text = "", texthl = "DiagnosticSignInfo" })
+fn.sign_define("DiagnosticSignHint", { text = "", texthl = "DiagnosticSignHint" })
 
 -- global config for diagnostic
 vim.diagnostic.config({
@@ -200,5 +204,3 @@ vim.diagnostic.config({
 lsp.handlers["textDocument/hover"] = lsp.with(vim.lsp.handlers.hover, {
   border = "rounded",
 })
-
-return M

lua/config/nvim-cmp.lua

@@ -33,7 +33,6 @@ cmp.setup({
   sources = {
     { name = 'nvim_lsp' }, -- For nvim-lsp
     { name = 'ultisnips' }, -- For ultisnips user.
-    { name = 'nvim_lua' }, -- for nvim lua function
     { name = 'path' }, -- for path completion
     { name = 'buffer', keyword_length = 4 }, -- for buffer word completion
     { name = 'omni' },

lua/config/nvim-tree.lua

@@ -1,62 +1,119 @@
 local nvim_tree = require("nvim-tree")
 
 nvim_tree.setup({
-	disable_netrw = true,
-	hijack_netrw = true,
-	open_on_setup = false,
-	ignore_ft_on_setup = {},
-	open_on_tab = false,
-	hijack_cursor = false,
-	update_cwd = false,
-	update_to_buf_dir = {
-		enable = true,
-		auto_open = true,
-	},
-	diagnostics = {
-		enable = false,
-		icons = {
-			hint = "",
-			info = "",
-			warning = "",
-			error = "",
-		},
-	},
-	update_focused_file = {
-		enable = false,
-		update_cwd = false,
-		ignore_list = {},
-	},
-	system_open = {
-		cmd = nil,
-		args = {},
-	},
-	filters = {
-		dotfiles = false,
-		custom = {},
-	},
-	git = {
-		enable = true,
-		ignore = true,
-		timeout = 500,
-	},
-	view = {
-		width = 35,
-		height = 30,
-		hide_root_folder = false,
-		side = "left",
-		auto_resize = true,
-		mappings = {
-			custom_only = false,
-			list = {},
-		},
-		number = false,
-		relativenumber = false,
-		signcolumn = "yes",
-	},
-	trash = {
-		cmd = "trash",
-		require_confirm = true,
-	},
+  auto_reload_on_write = true,
+  disable_netrw = false,
+  hijack_cursor = false,
+  hijack_netrw = true,
+  hijack_unnamed_buffer_when_opening = false,
+  ignore_buffer_on_setup = false,
+  open_on_setup = false,
+  open_on_setup_file = false,
+  open_on_tab = false,
+  sort_by = "name",
+  update_cwd = false,
+  view = {
+    width = 30,
+    height = 30,
+    hide_root_folder = false,
+    side = "left",
+    preserve_window_proportions = false,
+    number = false,
+    relativenumber = false,
+    signcolumn = "yes",
+    mappings = {
+      custom_only = false,
+      list = {
+        -- user mappings go here
+      },
+    },
+  },
+  renderer = {
+    indent_markers = {
+      enable = false,
+      icons = {
+        corner = "└ ",
+        edge = "│ ",
+        none = "  ",
+      },
+    },
+    icons = {
+      webdev_colors = true,
+    },
+  },
+  hijack_directories = {
+    enable = true,
+    auto_open = true,
+  },
+  update_focused_file = {
+    enable = false,
+    update_cwd = false,
+    ignore_list = {},
+  },
+  ignore_ft_on_setup = {},
+  system_open = {
+    cmd = "",
+    args = {},
+  },
+  diagnostics = {
+    enable = false,
+    show_on_dirs = false,
+    icons = {
+      hint = "",
+      info = "",
+      warning = "",
+      error = "",
+    },
+  },
+  filters = {
+    dotfiles = false,
+    custom = {},
+    exclude = {},
+  },
+  git = {
+    enable = true,
+    ignore = true,
+    timeout = 400,
+  },
+  actions = {
+    use_system_clipboard = true,
+    change_dir = {
+      enable = true,
+      global = false,
+      restrict_above_cwd = false,
+    },
+    open_file = {
+      quit_on_open = false,
+      resize_window = false,
+      window_picker = {
+        enable = true,
+        chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890",
+        exclude = {
+          filetype = { "notify", "packer", "qf", "diff", "fugitive", "fugitiveblame" },
+          buftype = { "nofile", "terminal", "help" },
+        },
+      },
+    },
+  },
+  trash = {
+    cmd = "trash",
+    require_confirm = true,
+  },
+  log = {
+    enable = false,
+    truncate = false,
+    types = {
+      all = false,
+      config = false,
+      copy_paste = false,
+      diagnostics = false,
+      git = false,
+      profile = false,
+    },
+  },
 })
 
-vim.api.nvim_set_keymap("n", "<space>s", "<cmd>lua require'nvim-tree'.toggle(false, true)<CR>", { noremap = true, silent = true })
+vim.keymap.set('n', '<space>s', function()
+  return require('nvim-tree').toggle(false, true)
+end,
+{ noremap = true, silent = true, desc = "toggle nvim-tree"})

lua/config/nvim_hop.lua

@@ -8,4 +8,7 @@ require('hop').setup({
   quit_key='<Esc>',
 })
 
-vim.api.nvim_set_keymap('n', 'f', "<cmd>lua require'hop'.hint_char2()<cr>", {noremap = true})
+vim.keymap.set('n', 'f', function()
+  return require('hop').hint_char2()
+end,
+{ silent = true, noremap = true, desc = "nvim-hop char2" })

lua/config/statusline.lua

@@ -1,3 +1,5 @@
+local fn = vim.fn
+
 local function spell()
   if vim.o.spell then
     return string.format("[SPELL]")
@@ -9,7 +11,7 @@ end
 local function ime_state()
   if vim.g.is_mac then
     -- ref: https://github.com/vim-airline/vim-airline/blob/master/autoload/airline/extensions/xkblayout.vim#L11
-    local layout = vim.fn.libcall(vim.g.XkbSwitchLib, 'Xkb_Switch_getXkbLayout', '')
+    local layout = fn.libcall(vim.g.XkbSwitchLib, 'Xkb_Switch_getXkbLayout', '')
     if layout == '0' then
       return '[CN]'
     end
@@ -19,36 +21,52 @@ local function ime_state()
 end
 
 local function trailing_space()
-  -- Get the positions of trailing whitespaces from plugin 'jdhao/whitespace.nvim'.
-  local trailing_space_pos = vim.b.trailing_whitespace_pos
+  if not vim.o.modifiable then
+    return ""
+  end
+
+  local line_num = nil
+
+  for i=1, fn.line('$') do
+    local linetext = fn.getline(i)
+    -- To prevent invalid escape error, we wrap the regex string with `[[]]`.
+    local idx = fn.match(linetext, [[\v\s+$]])
+
+    if idx ~= -1 then
+      line_num = i
+      break
+    end
+  end
 
   local msg = ""
-  if #trailing_space_pos > 0 then
-    -- Note that lua index is 1-based, not zero based!!!
-    local line = trailing_space_pos[1][1]
-    msg = string.format("[%d]trailing", line)
+  if line_num ~= nil then
+    msg = string.format("[%d]trailing", line_num)
   end
 
   return msg
 end
 
 local function mixed_indent()
+  if not vim.o.modifiable then
+    return ""
+  end
+
   local space_pat = [[\v^ +]]
   local tab_pat = [[\v^\t+]]
-  local space_indent = vim.fn.search(space_pat, 'nwc')
-  local tab_indent = vim.fn.search(tab_pat, 'nwc')
+  local space_indent = fn.search(space_pat, 'nwc')
+  local tab_indent = fn.search(tab_pat, 'nwc')
   local mixed = (space_indent > 0 and tab_indent > 0)
   local mixed_same_line
   if not mixed then
-    mixed_same_line = vim.fn.search([[\v^(\t+ | +\t)]], 'nwc')
+    mixed_same_line = fn.search([[\v^(\t+ | +\t)]], 'nwc')
     mixed = mixed_same_line > 0
   end
   if not mixed then return '' end
   if mixed_same_line ~= nil and mixed_same_line > 0 then
      return 'MI:'..mixed_same_line
   end
-  local space_indent_cnt = vim.fn.searchcount({pattern=space_pat, max_count=1e3}).total
-  local tab_indent_cnt =  vim.fn.searchcount({pattern=tab_pat, max_count=1e3}).total
+  local space_indent_cnt = fn.searchcount({pattern=space_pat, max_count=1e3}).total
+  local tab_indent_cnt =  fn.searchcount({pattern=tab_pat, max_count=1e3}).total
   if space_indent_cnt > tab_indent_cnt then
     return 'MI:'..tab_indent
   else

lua/custom-map.lua

@@ -0,0 +1,11 @@
+local keymap = vim.keymap
+
+-- Go to the beginning and end of current line in insert mode quickly
+keymap.set('i', '<C-A>', '<HOME>')
+keymap.set('i', '<C-E>', '<END>')
+
+-- Go to beginning of command in command-line mode
+keymap.set('c', '<C-A>', '<HOME>')
+
+-- Delete the character to the right of the cursor
+keymap.set('i', '<C-D>', '<DEL>')

lua/plugins.lua

@@ -15,9 +15,11 @@ end
 
 -- Load packer.nvim
 vim.cmd("packadd packer.nvim")
-local util = require('packer.util')
 
-require("packer").startup({
+local packer = require("packer")
+local packer_util = require('packer.util')
+
+packer.startup({
   function(use)
     -- it is recommened to put impatient.nvim before any other plugins
     use {'lewis6991/impatient.nvim', config = [[require('impatient')]]}
@@ -30,7 +32,7 @@ require("packer").startup({
 
     -- nvim-cmp completion sources
     use {"hrsh7th/cmp-nvim-lsp", after = "nvim-cmp"}
-    use {"hrsh7th/cmp-nvim-lua", after = "nvim-cmp"}
+    -- use {"hrsh7th/cmp-nvim-lua", after = "nvim-cmp"}
     use {"hrsh7th/cmp-path", after = "nvim-cmp"}
     use {"hrsh7th/cmp-buffer", after = "nvim-cmp"}
     use { "hrsh7th/cmp-omni", after = "nvim-cmp" }
@@ -119,6 +121,7 @@ require("packer").startup({
     use({"sainnhe/everforest", opt = true})
     use({"EdenEast/nightfox.nvim", opt = true})
     use({"rebelot/kanagawa.nvim", opt = true})
+    use({"catppuccin/nvim", as = "catppuccin", opt = true})
 
     -- Show git change (change, delete, add) signs in vim sign column
     use({"mhinz/vim-signify", event = 'BufEnter'})
@@ -136,7 +139,7 @@ require("packer").startup({
     use({ "akinsho/bufferline.nvim", event = "VimEnter", config = [[require('config.bufferline')]] })
 
     -- fancy start screen
-    use { 'goolord/alpha-nvim', event = 'VimEnter', config = [[require('config.alpha-nvim')]] }
+    use { 'glepnir/dashboard-nvim', event = "VimEnter", config = [[require('config.dashboard-nvim')]] }
 
     use({
       "lukas-reineke/indent-blankline.nvim",
@@ -183,13 +186,7 @@ require("packer").startup({
     -- use 'mg979/vim-visual-multi'
 
     -- Autosave files on certain events
-    use({
-      "Pocco81/AutoSave.nvim",
-      event = "VimEnter",
-      config = function()
-        vim.defer_fn(function() require('config.autosave') end, 1500)
-      end
-    })
+    use({"907th/vim-auto-save", event = "InsertEnter"})
 
     -- Show undo history visually
     use({"simnalamburt/vim-mundo", cmd = {"MundoToggle", "MundoShow"}})
@@ -356,10 +353,14 @@ require("packer").startup({
       requires = { 'kyazdani42/nvim-web-devicons' },
       config = [[require('config.nvim-tree')]]
     }
+
+    use { 'ii14/emmylua-nvim', ft = 'lua' }
+
+    use { 'j-hui/fidget.nvim', after = 'nvim-lspconfig', config = [[require('config.fidget-nvim')]]}
   end,
   config = {
     max_jobs = 16,
-    compile_path = util.join_paths(vim.fn.stdpath('config'), 'lua', 'packer_compiled.lua'),
+    compile_path = packer_util.join_paths(fn.stdpath('data'), 'site', 'lua', 'packer_compiled.lua'),
   },
 })
 

lua/utils.lua

@@ -1,13 +1,14 @@
+local fn = vim.fn
+
 -- inspect something
--- Taken from https://github.com/jamestthompson3/vimConfig/blob/eeef4a8eeb5a24938f8a0969a35f69c78643fb66/lua/tt/nvim_utils.lua#L106
-function inspect(item)
-  print(vim.inspect(item))
+function _G.inspect(item)
+  vim.pretty_print(item)
 end
 
 local M = {}
 
 function M.executable(name)
-  if vim.fn.executable(name) > 0 then
+  if fn.executable(name) > 0 then
     return true
   end
 
@@ -15,13 +16,20 @@ function M.executable(name)
 end
 
 function M.may_create_dir()
-  local fpath = vim.fn.expand('<afile>')
-  local parent_dir = vim.fn.fnamemodify(fpath, ":p:h")
-  local res = vim.fn.isdirectory(parent_dir)
+  local fpath = fn.expand('<afile>')
+  local parent_dir = fn.fnamemodify(fpath, ":p:h")
+  local res = fn.isdirectory(parent_dir)
 
   if res == 0 then
-    vim.fn.mkdir(parent_dir, 'p')
+    fn.mkdir(parent_dir, 'p')
   end
 end
 
+function M.get_nvim_version()
+  local actual_ver = vim.version()
+
+  local nvim_ver_str = string.format("%d.%d.%d", actual_ver.major, actual_ver.minor, actual_ver.patch)
+  return nvim_ver_str
+end
+
 return M

my_snippets/python.snippets

@@ -24,3 +24,7 @@ def main():
 if __name__ == "__main__":
 	main()
 endsnippet
+
+snippet sol "solution" b
+solution = Solution()
+endsnippet

plugin/command.vim

@@ -8,3 +8,40 @@ call utils#Cabbrev('man', 'Man')
 
 " show current date and time in human readable format
 command! -nargs=? Datetime echo utils#iso_time(<q-args>)
+
+" Convert Markdown file to PDF
+command! ToPDF call s:md_to_pdf()
+
+function! s:md_to_pdf() abort
+  " check if pandoc is installed
+  if executable('pandoc') != 1
+    echoerr "pandoc not found"
+    return
+  endif
+
+  let l:md_path = expand("%:p")
+  let l:pdf_path = fnamemodify(l:md_path, ":r") .. ".pdf"
+
+  let l:header_path = stdpath('config') . '/resources/head.tex'
+
+  let l:cmd = "pandoc --pdf-engine=xelatex --highlight-style=zenburn --table-of-content " .
+        \ "--include-in-header=" . l:header_path . " -V fontsize=10pt -V colorlinks -V toccolor=NavyBlue " .
+        \ "-V linkcolor=red -V urlcolor=teal -V filecolor=magenta -s " .
+        \ l:md_path . " -o " . l:pdf_path
+
+  if g:is_mac
+    let l:cmd = l:cmd . '&& open ' . l:pdf_path
+  endif
+
+  if g:is_win
+    let l:cmd = l:cmd . '&& start ' . l:pdf_path
+  endif
+
+  " echomsg l:cmd
+
+  let l:id = jobstart(l:cmd)
+
+  if l:id == 0 || l:id == -1
+    echoerr "Error running command"
+  endif
+endfunction

resources/head.tex

@@ -0,0 +1,78 @@
+\usepackage{fancyvrb,newverbs}
+\usepackage[top=2cm, bottom=1.5cm, left=2cm, right=2cm]{geometry}
+
+\PassOptionsToPackage{dvipsnames,svgnames,x11names}{xcolor}
+\usepackage{hyperref}
+
+% begin a new page for each section (first level header),
+% we need to combine this with `-V subparagraph` when invoking pandc
+% \usepackage{titlesec}
+% \newcommand{\sectionbreak}{\clearpage}
+
+% change background color for inline code in markdown files.
+% The following code does not work well for long text, because the text will exceed the page boundary.
+\definecolor{bgcolor}{HTML}{DADADA}
+\let\oldtexttt\texttt
+
+\renewcommand{\texttt}[1]{
+  \colorbox{bgcolor}{\oldtexttt{#1}}
+}
+
+% change style of quote, see also https://tex.stackexchange.com/a/436253/114857
+\usepackage[most]{tcolorbox}
+
+\definecolor{linequote}{RGB}{224,215,188}
+\definecolor{backquote}{RGB}{249,245,233}
+\definecolor{bordercolor}{RGB}{221,221,221}
+
+% change left border: https://tex.stackexchange.com/a/475716/114857
+% change left margin: https://tex.stackexchange.com/a/457936/114857
+\newtcolorbox{myquote}[1][]{%
+    enhanced,
+    breakable,
+    size=minimal,
+    left=10pt,
+    top=5pt,
+    bottom=5pt,
+    frame hidden,
+    boxrule=0pt,
+    sharp corners=all,
+    colback=backquote,
+    borderline west={2pt}{0pt}{bordercolor},
+    #1
+}
+
+% redefine quote environment to use the myquote environment, see https://tex.stackexchange.com/a/337587/114857
+\renewenvironment{quote}{\begin{myquote}}{\end{myquote}}
+
+% start a new page after toc, we need to save the old command before defining
+% new one to avoid recursive command calls,
+% see https://tex.stackexchange.com/questions/47351/can-i-redefine-a-command-to-contain-itself
+\let\oldtoc\tableofcontents
+\renewcommand{\tableofcontents}{\oldtoc\newpage}
+
+% fix header level issue
+\usepackage{enumitem}
+\setlistdepth{9}
+
+\setlist[itemize,1]{label=$\bullet$}
+\setlist[itemize,2]{label=$\bullet$}
+\setlist[itemize,3]{label=$\bullet$}
+\setlist[itemize,4]{label=$\bullet$}
+\setlist[itemize,5]{label=$\bullet$}
+\setlist[itemize,6]{label=$\bullet$}
+\setlist[itemize,7]{label=$\bullet$}
+\setlist[itemize,8]{label=$\bullet$}
+\setlist[itemize,9]{label=$\bullet$}
+\renewlist{itemize}{itemize}{9}
+
+\setlist[enumerate,1]{label=$\arabic*.$}
+\setlist[enumerate,2]{label=$\alph*.$}
+\setlist[enumerate,3]{label=$\roman*.$}
+\setlist[enumerate,4]{label=$\arabic*.$}
+\setlist[enumerate,5]{label=$\alpha*$}
+\setlist[enumerate,6]{label=$\roman*.$}
+\setlist[enumerate,7]{label=$\arabic*.$}
+\setlist[enumerate,8]{label=$\alph*.$}
+\setlist[enumerate,9]{label=$\roman*.$}
+\renewlist{enumerate}{enumerate}{9}

spell/en.utf-8.add

@@ -415,3 +415,18 @@ src
 RGBA
 yapf
 Vimming
+overfitting
+PCA
+SVM
+KNN
+leetcode
+Logitech
+WTF
+tensorboard
+Nvidia
+GPG
+manpage
+metatable
+open3d
+pyntcloud
+param