How can I disable the 'format code on save"

[x2c3z4]

When saving buffer to disk, the code is formatted, how can I close it.

[adoyle-h]

Disable formatting for temporary

If you want to disable it for temporary, use :ToggleLSP to disable LSP (But it will be enabled after refreshing buffer) for current buffer. And :ToggleNullLSP to disable NullLS formatting source for all buffers.

Disable formatting on-save for permanent

If you want to only disable formatting on-save,

require('one').setup {
	config = {
		lsp = {
			format = {
				_ = { on_save = true },

				c = { on_save = false },

				lua = {
					on_save = true,
				},
			},
		},
	},
}

For above config, c filetype buffers will disable formatting on-save, while other filetypes enabled.

The c and lua key are filetype. You can change it as your demand.
the "_" will match all filetypes. Please read this link.

You can press <M-=> to format whole file, or press <M-=> to format text in selection. Read doc/usage/keymaps.md.

This feature are implemented in adoyle-h/lsp-format.nvim (a fork from lukas-reineke/lsp-format.nvim) and plugins/lsp/format.

The config.lsp.format is passed to lspFormat.setup.

Disable formatting for permanent

If you want to completely disable it for permanent,

require('one').setup {
	config = {
		lsp = {
			format = {
				lua = {
					exclude = { -- exclude is a table of LSP servers that should not format the buffer whose filetype matching "lua".
						'sumneko_lua',
						'null-ls',
					},
				},
			},
		},
	}
}

Read :h lsp-format-exclude for exclude option.

[x2c3z4]

I just try the latest version.
The 'format' doesn't work, press 'M-=' and nothing happens.

[adoyle-h]

1. <M-=> means holding alt key (it is ⌥ in MacOS) and press =, is it right?
2. Check your lsp-format.nvim is adoyle-h/lsp-format.nvim instead of lukas-reineke/lsp-format.nvim in your plugin directory.
   For vim-plug, plugin directory is ~/.local/share/nvim/plugins.
   For packer, plugin directory is ~/.local/share/nvim/pack/packer/start/.
3. Check your LSP installed. Press <M-m> to open mason window.
4. Open your file, and invoke :LspInfo to check the LSP is attached to buffer.
5. Press <space>n to check whether there are any error messages or not.

[x2c3z4]

I have added this in the init.lua, because if don't add this, the code will be auto formatted.
So I think we should firstly disable the auto save, then support format code manually.

        config = {
                lsp = {
                        format = {
                                c = {
                                        exclude = { -- exclude is a table of LSP servers that should not format the buffer whose filetype matching "lua".
                                                'clang-format',
                                                'clangd',
                                        },
                                },
                                cc = {
                                        exclude = { -- exclude is a table of LSP servers that should not format the buffer whose filetype matching "lua".
                                                'clang-format',
                                                'clangd',
                                        },
                                },
                                h = {
                                        exclude = { -- exclude is a table of LSP servers that should not format the buffer whose filetype matching "lua".
                                                'clang-format',
                                                'clangd',
                                        },
                                },
                                cpp = {
                                        exclude = { -- exclude is a table of LSP servers that should not format the buffer whose filetype matching "lua".
                                                'clang-format',
                                                'clangd',
                                        },
                                },
                        },

[adoyle-h]

If you use exclude, it will disable format completely. You should use on_save = false. Read the Disable formatting on-save for permanent section in this answer.

[x2c3z4]

Thanks, it works.