neovim 0.5.0 + LSP + lua-based plugins

[wookayin]

Neovim 0.5.0 is out. It is time to migrate from coc to LSP.nvim and treesitter.

Resources (Guide and config example):

https://github.com/rockerBOO/awesome-neovim

https://news.ycombinator.com/item?id=27713358
https://www.reddit.com/r/neovim/comments/ol6fqq/050_language_server_client_qa_w_mjlbach_me/
https://blog.inkdrop.info/how-to-set-up-neovim-0-5-modern-plugins-lsp-treesitter-etc-542c3d9c9887
https://alpha2phi.medium.com/neovim-lsp-enhanced-a3d313abee65
https://nathansmith.io/posts/neovim-lsp/
https://elianiva.my.id/post/my-nvim-lsp-setup
https://github.com/siduck76/NvChad
https://cj.rs/blog/my-setup/nvim-0-5/
https://github.com/ttys3/nvim-config
https://www.reddit.com/r/neovim/comments/opipij/guide_tips_and_tricks_to_reduce_startup_and/
https://github.com/FotiadisM/nvim-lua-setup
https://github.com/akinsho/dotfiles <- A great neovim config
https://github.com/Neelfrost/dotfiles <- this one too
https://github.com/mattleong/CosmicNvim
https://github.com/lvim-tech/lvim <- Nice config for DAP, LSP

LSP Plugins

• ✅ Basic LSP config: https://github.com/neovim/nvim-lspconfig

• LSP servers/plugin management:

  • https://github.com/kabouzeid/nvim-lspinstall
  • ✅ https://github.com/williamboman/nvim-lsp-installer (this is much better); automatically install LSP plugins on startup.

• ✅ https://github.com/folke/lua-dev.nvim: To make lua LSP aware of neovim

• Completion engine

  • https://github.com/nvim-lua/completion-nvim (in favor of nvim-compe)
  • ✅ https://github.com/hrsh7th/nvim-compe (deprecated)
  • ✅ https://github.com/hrsh7th/nvim-cmp (bd9682f)
  • ✅ https://github.com/ray-x/lsp_signature.nvim: Show function signature upon completion
  • ✅ https://github.com/onsails/lspkind-nvim: Add symbol pictograms

• Other useful utilities:

  • ✅ https://github.com/folke/trouble.nvim: Show LSP diagnostic like quickfix
  • https://github.com/nvim-lua/glepnir/lspsaga.nvim
  • ✅ https://github.com/nvim-lua/lsp-status.nvim: Show statusline
  • https://github.com/RishabhRD/nvim-lsputils
  • https://github.com/ray-x/navigator.lua (Code Navigation and other LSP batteries)
  • https://github.com/SmiteshP/nvim-gps

• Treesitter (advanced syntax support)

  • https://github.com/nvim-treesitter/nvim-treesitter
  • Note: Treesitter's syntax highlight overrides existing python syntax. It should also replace semshi (since most use cases are covered). It also breaks some other plugins that rely on highlight groups (e.g. vim-autoimport) because synID cannot retrieve dynamic highlights.
  • https://github.com/romgrk/nvim-treesitter-context (replaces context.nvim)
  • https://github.com/nvim-treesitter/nvim-treesitter-refactor
  • Debugging: https://github.com/nvim-treesitter/playground

• Autoformatting (actually has nothing to do with LSP; should support buffer and range reformatting)

  • ✅ https://github.com/jose-elias-alvarez/null-ls.nvim
  • https://github.com/mattn/efm-langserver
  • https://github.com/pappasam/vim-filetype-formatter
  • https://github.com/mhartington/formatter.nvim
  • Ref: https://www.reddit.com/r/neovim/comments/od5sdw/do_you_use_builtin_lsp_for_autoformatting/

DAP (Debug Adapter Protocol)

Out of scope, will be done later

• https://microsoft.github.io/debug-adapter-protocol/overview
• A tutorial: https://alpha2phi.medium.com/neovim-dap-enhanced-ebc730ff498b
• Plugins:
  • https://github.com/mfussenegger/nvim-dap
  • https://github.com/rcarriga/nvim-dap-ui
  • https://github.com/theHamsta/nvim-dap-virtual-text
  • https://github.com/Pocco81/DAPInstall.nvim
  • https://github.com/mfussenegger/nvim-dap-python (for Python)
  • https://github.com/jbyuki/one-small-step-for-vimkind (for Lua)
  • https://github.com/rcarriga/vim-ultest

Other Utilities (needed because replacing coc.nvim, etc.)

• ✅ Lua-based file tree explorer (like coc-explorer): https://github.com/kyazdani42/nvim-tree.lua
• ✅ Display color (like coc-color): https://github.com/norcalli/nvim-colorizer.lua
• Generic linters for miscellaneous filetypes without LSP configuration (ALE)
  • Ultisnip's automatic pylint snippet needs to be adjusted as well
• ✅ Telescope (new): https://github.com/nvim-telescope/telescope.nvim

Missing features / TODO

• ✅ Peek definition (previously gP, <leader>K)
• ✅ Automatic (and manual) code formatting
• Automatic import organization upon save (but should be able to opt out if needed)
• Auto pair parentheses

[wookayin]

#28 adds first minimal LSP configuration; nvim-lsp-installer, nvim-compe, lsp_signature.nvim, trouble.nvim, nvim-tree.lua, etc.

The next milestone will include treesitter (still experimental) and more advanced IDE-like features such as peek definition, auto formatting, etc.

[wookayin]

Migrated from nvim-compe to nvim-cmp with custom floating pop-up menu support 🎉

[wookayin]

PeekDefinition: 1833d35

[wookayin]

Basic LSP support are all done and have been quite stable. Treesitter, DAP integration will be left as future work.