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-- autoformat.lua
--
-- Use your language server to automatically format your code on save.
-- Adds additional commands as well to manage the behavior
return {
'neovim/nvim-lspconfig',
config = function()
-- Switch for controlling whether you want autoformatting.
-- Use :KickstartFormatToggle to toggle autoformatting on or off
local format_is_enabled = true
vim.api.nvim_create_user_command('KickstartFormatToggle', function()
format_is_enabled = not format_is_enabled
print('Setting autoformatting to: ' .. tostring(format_is_enabled))
end, {})
-- Create an augroup that is used for managing our formatting autocmds.
-- We need one augroup per client to make sure that multiple clients
-- can attach to the same buffer without interfering with each other.
local _augroups = {}
local get_augroup = function(client)
if not _augroups[client.id] then
local group_name = 'kickstart-lsp-format-' .. client.name
local id = vim.api.nvim_create_augroup(group_name, { clear = true })
_augroups[client.id] = id
end
return _augroups[client.id]
end
-- Whenever an LSP attaches to a buffer, we will run this function.
--
-- See `:help LspAttach` for more information about this autocmd event.
vim.api.nvim_create_autocmd('LspAttach', {
group = vim.api.nvim_create_augroup('kickstart-lsp-attach-format', { clear = true }),
-- This is where we attach the autoformatting for reasonable clients
callback = function(args)
local client_id = args.data.client_id
local client = vim.lsp.get_client_by_id(client_id)
local bufnr = args.buf
-- Only attach to clients that support document formatting
if not client.server_capabilities.documentFormattingProvider then
return
end
-- Tsserver usually works poorly. Sorry you work with bad languages
-- You can remove this line if you know what you're doing :)
if client.name == 'tsserver' then
return
end
-- Create an autocmd that will run *before* we save the buffer.
-- Run the formatting command for the LSP that has just attached.
vim.api.nvim_create_autocmd('BufWritePre', {
group = get_augroup(client),
buffer = bufnr,
callback = function()
if not format_is_enabled then
return
end
vim.lsp.buf.format {
async = false,
filter = function(c)
return c.id == client.id
end,
}
end,
})
end,
})
end,
}
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