Silence LSP diagnostics with a single click

lazy.nvim

return {
  "mbienkowsk/hush.nvim",
  config = {},
  keys = {
      { "<leader>h", "<Cmd>Hush<CR>", desc = "Hush" }, -- customize
  },
  cmd = {
      "Hush", "HushAll"
  },
}

packer.nvim

use({
  "mbienkowsk/hush.nvim",
  config = function()
    require("hush").setup({})
  end,
})

vim.keymap.set("n", "<leader>h", "<Cmd>Hush<CR>", { desc = "Hush" }) -- customize

vim-plug

Plug 'mbienkowsk/hush.nvim'
lua << EOF
require("hush").setup({})
vim.keymap.set("n", "<leader>h", "<Cmd>Hush<CR>", { desc = "Hush" }) " customize
EOF

Currently, the plugin supports the following diagnostic sources:

• basedpyright
• LuaLS
• clang-tidy

Hush exposes two commands - :Hush and :HushAll. Hush tries to silence the specific warnings emitted by the line using their error codes (if it's not supported in the source, it falls back to HushAll. HushAll disables the offended source for the line (if it's not supported in the source, falls back to Hush.

In order to add support for hushing a source, a subclass of DiagnosticSource has to be added in sources/. Each diagnostic source has to implement 4 things:

• comment_position field - whether the diagnostic ignore comment is supposed to be above or on the offending line
• build_suppress_all_diagnostics - function returning a string which disables all diagnostics from this source for a given line
• build_suppress_diagnostics - function returning a string which disables the given diagnostics for a given line
• matches_diagnostic - function that checks if the diagnostic source matches the given diagnostic (some diagnostic sources provide several "source" arguments in the diagnostic based on the context - e.g. lua_ls)

Running tests requires either

• luarocks
• or busted and nlua

to be installed¹.

You can then run:

luarocks test --local
# or
busted

Or if you want to run a single test file:

luarocks test spec/path_to_file.lua --local
# or
busted spec/path_to_file.lua

If you see an error like module 'busted.runner' not found:

eval $(luarocks path --no-bin)

For this to work you need to have Lua 5.1 set as your default version for luarocks. If that's not the case you can pass --lua-version 5.1 to all the luarocks commands above.