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-- import null-ls plugin safely
local setup, null_ls = pcall(require, "null-ls")
if not setup then
return
end
-- for conciseness
local formatting = null_ls.builtins.formatting -- to setup formatters
local diagnostics = null_ls.builtins.diagnostics -- to setup linters
-- to setup format on save
local augroup = vim.api.nvim_create_augroup("LspFormatting", {})
-- configure null_ls
null_ls.setup({
-- setup formatters & linters
sources = {
-- might install pyre as linter
-- turned off cpplint
formatting.black, -- python formatter
formatting.stylua, -- lua formatter
formatting.clang_format, -- cpp formatter
diagnostics.pyre, -- python linter
diagnostics.cpplint, -- cpp linter
},
-- configure format on save
on_attach = function(current_client, bufnr)
if current_client.supports_method("textDocument/formatting") then
vim.api.nvim_clear_autocmds({ group = augroup, buffer = bufnr })
vim.api.nvim_create_autocmd("BufWritePre", {
group = augroup,
buffer = bufnr,
callback = function()
vim.lsp.buf.format({
filter = function(client)
-- only use null-ls for formatting instead of lsp server
return client.name == "null-ls"
end,
bufnr = bufnr,
})
end,
})
end
end,
})
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