Chapter 3. rustfmt

On Red Hat Enterprise Linux 7, the rustfmt tool is provided by the rust-toolset-1.31-rustfmt-preview package. To install it:

yum install rust-toolset-1.31-rustfmt-preview

# yum install rust-toolset-1.31-rustfmt-preview

To format a rust source file and all its dependencies with the rustfmt tool:

Replace source-file with path to the source file.

By default, rustfmt modifies the affected files in place without displaying details or creating backups. To change the behavior, use the --write-mode value option. For further details see the help mesage of rustfmt:

Additionally, rustfmt accepts standard input instead of a file and provides its output in standard output.

To format all source files in a cargo crate:

To change the rustfmt formatting options, create the configuration file rustfmt.toml in the project directory and supply the configuration there. For further details see the help message of rustfmt: