For legacy python implementation, see branch master.

This repository is no longer actively maintained. Users are encouraged to migrate to Neovim's native LSP client , which now provides built-in functionality that supersedes the purpose of this project.

Issues and pull requests may not be reviewed or merged. Please use this code at your own discretion.

Language Server Protocol support for vim and neovim.

More recordings at Updates, screenshots & GIFs.

• Non-blocking asynchronous calls.
• Sensible completion. Integrated well with deoplete or ncm2, or MUcomplete. Or simply with vim built-in omnifunc.
• Realtime diagnostics/compiler/lint message.
• Rename.
• Hover/Get identifier info.
• Goto definition.
• Goto reference locations.
• Workspace/Document symbols query.
• Formatting.
• Code Action/Quick Fix.

Using vim-plug:

Plug 'autozimu/LanguageClient-neovim', {
    \ 'branch': 'next',
    \ 'do': 'bash install.sh',
    \ }
" (Optional) Multi-entry selection UI.
Plug 'junegunn/fzf'

Example configuration

" Required for operations modifying multiple buffers like rename.
set hidden
let g:LanguageClient_serverCommands = {
    \ 'rust': ['~/.cargo/bin/rustup', 'run', 'stable', 'rls'],
    \ 'javascript': ['/usr/local/bin/javascript-typescript-stdio'],
    \ 'javascript.jsx': ['tcp://127.0.0.1:2089'],
    \ 'python': ['/usr/local/bin/pyls'],
    \ 'ruby': ['~/.rbenv/shims/solargraph', 'stdio'],
    \ }
" note that if you are using Plug mapping you should not use `noremap` mappings.
nmap <F5> <Plug>(lcn-menu)
" Or map each action separately
nmap <silent>K <Plug>(lcn-hover)
nmap <silent> gd <Plug>(lcn-definition)
nmap <silent> <F2> <Plug>(lcn-rename)

Run command nvim +PlugInstall +UpdateRemotePlugins +qa in shell to install this plugin. Install corresponding language servers. Restart neovim/vim and language services will be available right away. Happy hacking!

LanguageClient-neovim defines various Plug mappings, see :help LanguageClientMappings for a full list and an example configuration.

Full installation steps

Note, you will also need language server(s) to take advantages of this plugin. To find list of language server implementations and how to install them, please see https://langserver.org and/or https://microsoft.github.io/language-server-protocol/implementors/servers/.

• :help LanguageClient
• Changelog
• Troubleshooting
• Contributing
• The MIT License