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An unofficial collection of linters and formatters configured for efm-langserver for neovim.

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efmls-configs-nvim

Configs on dotfyle

An unofficial collection of linters and formatters configured for efm-langserver for neovim.

Supported linters and formatters

doc/SUPPORTED_LIST.md

Features

  • Out-of-box configurations for 90+ tools (linters and formatters)
  • Intelligently detect tools installed project-wide or system-wide - works only for node/npm, php/composer and ruby/bundler (additional support for other build tools coming soon, welcome any contributions)
  • :checkhealth integration for status check

Documentation

Documentation can be accessed via :help efmls-configs or further below.

Requirements

Installation

Install with your favorite plugin manager or just use builtin packages.

lazy.nvim

{
  'creativenull/efmls-configs-nvim',
  version = 'v1.x.x', -- version is optional, but recommended
  dependencies = { 'neovim/nvim-lspconfig' },
}

packer.nvim

use {
  'creativenull/efmls-configs-nvim',
  tag = 'v1.*', -- tag is optional, but recommended
  requires = { 'neovim/nvim-lspconfig' },
}

vim-plug

Plug 'neovim/nvim-lspconfig'
Plug 'creativenull/efmls-configs-nvim', { 'tag': 'v1.*' } " tag is optional, but recommended

Setup

See also :help efmls-configs-setup to view docs inside neovim.

To get started, make a languages table that will define configurations for the language of your choice. Or use the defaults provided by this plugin.

-- Register linters and formatters per language
local eslint = require('efmls-configs.linters.eslint')
local prettier = require('efmls-configs.formatters.prettier')
local stylua = require('efmls-configs.formatters.stylua')
local languages = {
  typescript = { eslint, prettier },
  lua = { stylua },
}

-- Or use the defaults provided by this plugin
-- check doc/SUPPORTED_LIST.md for the supported languages
--
-- local languages = require('efmls-configs.defaults').languages()

local efmls_config = {
  filetypes = vim.tbl_keys(languages),
  settings = {
    rootMarkers = { '.git/' },
    languages = languages,
  },
  init_options = {
    documentFormatting = true,
    documentRangeFormatting = true,
  },
}

require('lspconfig').efm.setup(vim.tbl_extend('force', efmls_config, {
  -- Pass your custom lsp config below like on_attach and capabilities
  --
  -- on_attach = on_attach,
  -- capabilities = capabilities,
}))

Default Configurations

See also :help efmls-configs-defaults to view docs inside neovim.

Default configurations are an opt-in feature. To see all the configurations provided by default go to doc/SUPPORTED_LIST.md.

You can use a list of defaults provided by this plugin, in-case you don't want to specify configuration for each language.

local languages = require('efmls-configs.defaults').languages()

To add additional tools which are not provided by default you can extend via vim.tbl_extend(). This can also be used as a way to override defaults.

local languages = require('efmls-configs.defaults').languages()
languages = vim.tbl_extend('force', languages, {
  -- Custom languages, or override existing ones
  html = {
    require('efmls-configs.formatters.prettier'),
  },
})

Tips and Tricks

Format on save

There are couple ways you can format your code on save.

  1. Register an autocmd to run format on save:
local lsp_fmt_group = vim.api.nvim_create_augroup('LspFormattingGroup', {})
vim.api.nvim_create_autocmd('BufWritePost', {
  group = lsp_fmt_group,
  callback = function(ev)
    local efm = vim.lsp.get_active_clients({ name = 'efm', bufnr = ev.buf })

    if vim.tbl_isempty(efm) then
      return
    end

    vim.lsp.buf.format({ name = 'efm' })
  end,
})
  1. If you do not want to write and maintain the code above, then you can rely on a plugin like lukas-reineke/lsp-format.nvim which makes it easier to format on save.

Troubleshooting

See also :help efmls-configs-issues to view docs inside neovim.

Always run :checkhealth to see if there are any issue, when you get no response from the linter or formatter as you expected.

If you get "no executable found" issues in :checkhealth, this means that the linter or formatter was not found in the provided filepath. Ensure that it is installed globally or in a valid filepath.

For nodejs/npm, php/composer, ruby/bundler: check if the linter or formatter is installed in your node_modules (npm), vendor (composer/bundler) project folder, or installed globally.

Mason setup issue (:help efmls-configs-mason)

If you use mason, then you don't need to add anything extra for efmls-configs for it to work. But if you are having problems setting up then check the following:

  1. Make sure you call mason setup() before efm setup()
  2. Run :!which <tool> to check if the path is provided by mason

Alternatives

Credits

Credits goes to the following projects for inspiration:

  • efm-langserver for this awesome language server to provide an interface to run linters/formatters through a LSP protocol
  • ALE for a huge list of linters/formatters to look through and add them in here

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An unofficial collection of linters and formatters configured for efm-langserver for neovim.

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  • Lua 89.4%
  • TypeScript 10.6%