tldr/pages/common/rustfmt.md

rustfmt

Tool for formatting Rust source code.

• Format a file, overwriting the original file in-place:

rustfmt {{source.rs}}

• Check a file for formatting and display any changes on the console:

rustfmt --check {{source.rs}}

• Backup any modified files before formatting (the original file is renamed with a .bk extension):

rustfmt --backup {{source.rs}}