mason.nvim VS null-ls.nvim

I recently started coding with Neovim using kickstart.nvim as the template for my editor configuration. I downloaded the python-lsp-server package using Mason, but I was disappointed to discover that the IntelliSense on my third party dependencies didn't work. The LSP was resolving to my global Python installation, which did not have the packages from my virtual environment (venv) installed.

https://github.com/hrsh7th/nvim-cmp This is an autocompletion engine https://github.com/nvim-treesitter/nvim-treesitter This allows NeoVim to install parsing scripts so NeoVim can do things like code highlighting. https://github.com/williamboman/mason.nvim Not strictly necessary, but allows you to access a repo of LSP, install them, and configure them for without you actively messing about in config files. https://github.com/neovim/nvim-lspconfig Also not strictly necessary, but vastly simplifies LSP setup. https://github.com/williamboman/mason-lspconfig.nvim This lets the above two plugins talk to each other more easily.

I'm using mason.nvim to install my dependencies, I've this snippet at nvim/plugin/mason.lua so after cloning my dotfiles I can just run:

The suggestion from this thread fixed it for me. I just needed to unset GOOS and GOARCH then restart neovim.

For instance, I'm trying to install rust-analyzer in lazyvim from https://github.com/williamboman/mason.nvim. The installation instructions are:

I have pyright installed via mason which apparently support "semantic token highlighting" but have been having a hard time getting these colors to show up in a buffer. It seems Neovim has changed how it handles semantic highlighting a few times so there's still some conflicting information online. It's hard to know what's current and what's not. Any help would be greatly appreciated.

Use mason to install the language servers you want.

Because null-ls.nvim & mason.nvim together do everything I wanted CoC for

you can use nvim then, it has shellcheck for diagnostics and formatting, like in vscode :)

here the link to the config: https://github.com/jose-elias-alvarez/null-ls.nvim/blob/main...

I use a lot of different languages generally and I'm running into issues around formatting. Is there any standard way to use LSP formatting by default and otherwise fallback to specific linter/formatting programs? I believe null-ls is the normal way of dealing with this, but since it's been archived, I'd rather not rely on it.

I've been using pint for formatting php files with null-ls.nvim. Few days ago null-ls.nvim has announced that the plugin will be archived in few months so I started migrating all my formatters and linter from null-ls to efm-langserver. I got other things such as prettier, black, isort, mypy, etc. working but can't get pint to work with php files: If I run pint via efm-langserver, everything is deleted from the buffer, and the saved file is formatted separately. How do I setup efm-langserver correctly to work with pint? Below is my config.yml for pint currently. yaml tools: pint: &pint format-command: "pint --no-interaction --quiet ${INPUT}" format-stdin: false languages: php: - <<: *pint Thank you.

Because null-ls.nvim & mason.nvim together do everything I wanted CoC for

There is a good answer. I think you know lua and neovim config enough to pick things that you need. If you need a short answer, null-ls is the way.