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-- Format synchronously on save
vim.api.nvim_create_autocmd("BufWritePre", {
pattern = "*",
callback = function(args)
-- Disable autoformat on certain filetypes
local ignore_filetypes = { "sql", "java" }
if vim.tbl_contains(ignore_filetypes, vim.bo[args.buf].filetype) then
return
end
-- Disable with a global or buffer-local variable
if vim.g.disable_autoformat or vim.b[args.buf].disable_autoformat then
return
end
-- Disable autoformat for files in a certain path
local bufname = vim.api.nvim_buf_get_name(args.buf)
if bufname:match("/node_modules/") then
return
end
require("conform").format({ timeout_ms = 500, lsp_fallback = true, bufnr = args.buf })
end,
})
-- To eliminate the boilerplate, you can pass a function to format_on_save
-- and it will be called during the BufWritePre callback.
require("conform").setup({
format_on_save = function(bufnr)
if vim.g.disable_autoformat or vim.b[bufnr].disable_autoformat then
return
end
-- ...additional logic...
return { timeout_ms = 500, lsp_fallback = true }
end,
})
-- There is a similar affordance for format_after_save, which uses BufWritePost.
-- This is good for formatters that are too slow to run synchronously.
require("conform").setup({
format_after_save = function(bufnr)
if vim.g.disable_autoformat or vim.b[bufnr].disable_autoformat then
return
end
-- ...additional logic...
return { lsp_fallback = true }
end,
})
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