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chopsticks/README.md
m1ngsama 323bf4a6b3
LSP 分层后端、UI 增强、UX 修复与完整文档 
合并 PR #5：tiered LSP backend (CoC/vim-lsp), vim-which-key, vim-startify, indentLine, 修复按键冲突，UX 改进。
2026-02-21 12:30:06 +08:00

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# chopsticks - Vim Configuration
A native Vim configuration optimized for engineering workflows. Designed for
Vim 8.0+ with automatic fallbacks for minimal environments (TTY, no Node.js).
## Quick Install
```bash
git clone https://github.com/m1ngsama/chopsticks.git ~/.vim
cd ~/.vim && ./install.sh
```
See [QUICKSTART.md](QUICKSTART.md) for the 5-minute guide.
---
## Design Principles
- **KISS**: No icon fonts, no unicode glyphs, plain ASCII throughout
- **Tiered LSP**: CoC (full) with vim-lsp fallback - works with or without Node.js
- **TTY-aware**: Automatic detection and optimization for console environments
- **Engineering-first**: Git workflow, session management, project-local config
---
## Requirements
| Requirement | Minimum | Notes |
|----------------|-------------|--------------------------------|
| Vim | 8.0+ | vim9script not required |
| git | any | For cloning and fugitive |
| curl | any | For vim-plug auto-install |
| Node.js | 14.14+ | Optional, enables CoC LSP |
| ripgrep (rg) | any | Optional, enables :Rg search |
| fzf | any | Optional, enables :Files/:GFiles |
| ctags | any | Optional, enables :TagbarToggle |
---
## Installation
### Automatic
```bash
git clone https://github.com/m1ngsama/chopsticks.git ~/.vim
cd ~/.vim
./install.sh
```
The script:
1. Checks for a working Vim installation
2. Backs up your existing `~/.vimrc` if present
3. Creates a symlink: `~/.vimrc -> ~/.vim/.vimrc`
4. Installs vim-plug
5. Runs `:PlugInstall` to download all plugins
6. Optionally installs CoC language servers (if Node.js is available)
### Manual
```bash
git clone https://github.com/m1ngsama/chopsticks.git ~/.vim
ln -sf ~/.vim/.vimrc ~/.vimrc
curl -fLo ~/.vim/autoload/plug.vim --create-dirs \
https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim
vim +PlugInstall +qall
```
---
## LSP: Tiered Backend System
Code intelligence is provided by one of two backends, selected automatically:
| Condition | Backend | Features |
|----------------------------------|----------------|-----------------------------------------------|
| Vim 8.0.1453+ AND Node.js 14.14+ | **CoC** | Full LSP, snippets, extensions ecosystem |
| Vim 8.0+ (no Node.js) | **vim-lsp** | LSP via language server binaries, asyncomplete|
| Any Vim | **ALE** | Linting and auto-fix (always active) |
Both backends expose identical key mappings (`gd`, `K`, `[g`, `]g`, `<leader>rn`, `<leader>ca`).
### CoC setup (with Node.js)
Install language server extensions from inside Vim:
```vim
:CocInstall coc-pyright " Python
:CocInstall coc-tsserver " JavaScript / TypeScript
:CocInstall coc-go " Go
:CocInstall coc-rust-analyzer " Rust
:CocInstall coc-json coc-yaml " JSON, YAML
:CocInstall coc-html coc-css " HTML, CSS
```
### vim-lsp setup (without Node.js)
Install language server binaries for your languages, then run:
```vim
:LspInstallServer " auto-installs servers for the current filetype
```
Supported: `pylsp`, `gopls`, `rust-analyzer`, `typescript-language-server`,
`bash-language-server`, and all others covered by `vim-lsp-settings`.
---
## Key Mappings
Leader key: `,` (comma)
Press `,` and wait 500ms for an interactive guide to all bindings (vim-which-key).
### Files and Buffers
| Key | Action |
|------------|-------------------------------------|
| `Ctrl+n` | Toggle file tree (NERDTree) |
| `,n` | Reveal current file in NERDTree |
| `Ctrl+p` | Fuzzy file search (FZF) |
| `,b` | Search open buffers (FZF) |
| `,rg` | Project-wide search (ripgrep+FZF) |
| `,rt` | Search tags (FZF) |
| `,gF` | Search git-tracked files (FZF) |
| `,l` | Next buffer |
| `,h` | Previous buffer |
| `,bd` | Close current buffer |
| `,,` | Switch to last file |
### Windows and Tabs
| Key | Action |
|--------------|---------------------------------|
| `Ctrl+h/j/k/l` | Navigate between windows |
| `<Leader>=` | Increase window height |
| `<Leader>-` | Decrease window height |
| `<Leader>+` | Increase window width |
| `<Leader>_` | Decrease window width |
| `,tn` | New tab |
| `,tc` | Close tab |
| `,tl` | Toggle to last tab |
### Code Intelligence (CoC / vim-lsp)
| Key | Action |
|-------------|---------------------------------|
| `gd` | Go to definition |
| `gy` | Go to type definition |
| `gi` | Go to implementation |
| `gr` | Show references |
| `K` | Hover documentation |
| `[g` | Previous diagnostic |
| `]g` | Next diagnostic |
| `,rn` | Rename symbol |
| `,f` | Format selection |
| `,ca` | Code action (cursor) |
| `,qf` | Quick-fix current line (CoC) |
| `,cl` | Run code lens (CoC) |
| `,o` | File outline |
| `,ws` | Workspace symbols |
| `,cD` | Diagnostics list |
| `,cr` | Resume last CoC list |
| `Tab` | Next completion item |
| `Shift+Tab` | Previous completion item |
| `Enter` | Confirm completion |
Text objects (CoC only): `if`/`af` (function), `ic`/`ac` (class)
### Linting (ALE)
| Key | Action |
|----------|-----------------------|
| `[e` | Next error/warning |
| `]e` | Previous error/warning|
| `,aD` | Show error details |
Signs: `X` = error, `!` = warning
### Git Workflow (fugitive)
| Key | Action |
|--------|---------------------------------|
| `,gs` | Git status |
| `,gc` | Git commit |
| `,gp` | Git push |
| `,gl` | Git pull |
| `,gd` | Git diff |
| `,gb` | Git blame |
| `,gF` | Search git-tracked files (FZF) |
### Engineering Utilities
| Key | Action |
|----------|-------------------------------------|
| `,ev` | Edit `~/.vimrc` |
| `,sv` | Reload `~/.vimrc` |
| `,F` | Format entire file (= indent) |
| `,W` | Strip trailing whitespace |
| `,wa` | Save all open buffers |
| `,wd` | Change CWD to current buffer's dir |
| `,cp` | Copy file path to clipboard |
| `,cf` | Copy filename to clipboard |
| `,y` | Yank to system clipboard |
| `,Y` | Yank line to system clipboard |
| `,*` | Search+replace word under cursor |
| `,qo` | Open quickfix list |
| `,qc` | Close quickfix list |
| `,tv` | Open terminal (vertical split) |
| `,th` | Open terminal (horizontal, 10r) |
| `Esc` | Exit terminal mode |
### Navigation and Editing
| Key | Action |
|------------|---------------------------------------------|
| `s`+2ch | EasyMotion jump to any location |
| `Space` | Toggle code fold |
| `Y` | Yank to end of line (like `D`, `C`) |
| `n` / `N` | Search next/prev (cursor centered) |
| `Ctrl+d/u` | Half-page scroll (cursor centered) |
| `>` | Indent (keeps visual selection) |
| `<` | Dedent (keeps visual selection) |
| `[q` / `]q`| Previous/next quickfix (vim-unimpaired) |
| `[e` / `]e`| Previous/next ALE error/warning |
| `F2` | Toggle paste mode |
| `F3` | Toggle line numbers |
| `F4` | Toggle relative line numbers |
| `F5` | Toggle undo history (UndoTree) |
| `F8` | Toggle code tag browser (Tagbar) |
| `0` | Jump to first non-blank character |
| `Alt+j/k` | Move line up/down |
---
## Features
### vim-startify: Startup Screen
Opens when Vim is launched without a file argument. Shows:
- Recently opened files
- Sessions for the current directory
- Bookmarks
Session auto-saves on quit. Auto-loads `Session.vim` if found in the current
directory. Auto-changes to git root on file open.
### vim-which-key: Keybinding Guide
Press `,` and pause for 500ms. A popup lists all available leader bindings
organized by group. Useful for onboarding and discovering shortcuts.
### indentLine: Indent Guides
Draws `|` characters at each indent level. Disabled automatically in TTY
environments and for filetypes where it causes display problems (JSON,
Markdown, help).
### Session Management
```vim
:Obsess " Start tracking session
:Obsess! " Stop tracking
```
Sessions are stored in `~/.vim/sessions/` and automatically resumed by
vim-prosession on the next Vim launch in the same directory.
### Project-Local Config
Place a `.vimrc` in any project root:
```vim
" project/.vimrc
set shiftwidth=2
let g:ale_python_black_options = '--line-length=100'
```
Loaded automatically. Security-restricted via `set secure`.
### Large File Handling
Files over 10MB automatically disable syntax highlighting and undo history
to prevent Vim from freezing.
### TTY / Console Support
Detected automatically when `$TERM` is `linux` or `screen`, or when running
on a basic built-in terminal. In TTY mode:
- True color and cursorline disabled
- Powerline separators replaced with plain ASCII
- FZF preview windows disabled
- NERDTree auto-open skipped
- Syntax column limit reduced to 120
- Simpler status line used
---
## Language Support
| Language | Indent | Formatter | Linter |
|----------------|--------|---------------|---------------------|
| Python | 4sp | black + isort | flake8, pylint |
| JavaScript | 2sp | prettier | eslint |
| TypeScript | 2sp | prettier | eslint, tsserver |
| Go | tab | gofmt, goimports | gopls, golint |
| Rust | 4sp | rustfmt | cargo |
| Shell | 2sp | - | shellcheck |
| YAML | 2sp | prettier | yamllint |
| HTML/CSS | 2sp | prettier | - |
| Markdown | 2sp | prettier | - |
| JSON | 2sp | prettier | - |
| Dockerfile | 2sp | - | hadolint |
Install linters separately (e.g. `pip install black flake8`, `npm i -g prettier`).
ALE runs them asynchronously and auto-fixes on save.
---
## Plugin List
### Navigation
- **NERDTree** - File tree explorer
- **fzf + fzf.vim** - Fuzzy finder
- **CtrlP** - Fallback fuzzy finder (no fzf dependency)
### Git
- **vim-fugitive** - Git commands inside Vim
- **vim-gitgutter** - Diff signs in the sign column
### LSP and Completion
- **coc.nvim** - Full LSP + completion (requires Node.js 14.14+)
- **vim-lsp** - Pure VimScript LSP client (fallback, no Node.js)
- **vim-lsp-settings** - Auto-configure language servers for vim-lsp
- **asyncomplete.vim** - Async completion (used with vim-lsp)
### Linting
- **ALE** - Asynchronous Lint Engine (always active)
### UI
- **vim-airline** - Status and tabline
- **vim-startify** - Startup screen
- **vim-which-key** - Keybinding hint popup
- **indentLine** - Indent guide lines (non-TTY)
- **undotree** - Undo history visualizer
- **tagbar** - Code structure sidebar
### Editing
- **vim-surround** - Change surrounding quotes, brackets, tags
- **vim-commentary** - `gc` to toggle comments
- **auto-pairs** - Auto-close brackets and quotes
- **vim-easymotion** - Jump anywhere with 2 keystrokes
- **vim-unimpaired** - Bracket shortcut pairs
- **targets.vim** - Extra text objects
- **vim-snippets** - Snippet library (used with CoC/UltiSnips)
### Language Packs
- **vim-polyglot** - Syntax for 100+ languages
- **vim-go** - Go development tools
### Session
- **vim-obsession** - Continuous session saving
- **vim-prosession** - Project-level session management
### Color Schemes
- **gruvbox** (default), **dracula**, **solarized**, **onedark**
---
## Color Scheme
Change in `.vimrc` (find the `colorscheme` line):
```vim
colorscheme dracula " or: gruvbox, solarized, onedark
```
True color is enabled automatically when the terminal supports it
(`$COLORTERM=truecolor`). Falls back to 256-color, then 16-color (TTY).
---
## Troubleshooting
**Plugins not installed:**
```vim
:PlugInstall
:PlugUpdate
```
**CoC not working:**
```bash
node --version # must be >= 14.14
```
**vim-lsp server not starting:**
```vim
:LspInstallServer " install server for current filetype
:LspStatus " check server status
```
**Colors look wrong:**
```bash
# Add to ~/.bashrc or ~/.zshrc
export TERM=xterm-256color
```
**ALE not finding linters:**
```bash
which flake8 black prettier eslint # confirm tools are on PATH
```
---
## References
- [amix/vimrc](https://github.com/amix/vimrc)
- [vim-plug](https://github.com/junegunn/vim-plug)
- [coc.nvim](https://github.com/neoclide/coc.nvim)
- [vim-lsp](https://github.com/prabirshrestha/vim-lsp)
- [vim-lsp-settings](https://github.com/mattn/vim-lsp-settings)
## License
MIT
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