new-lines¶

What this rule does¶

Enforces a consistent line-ending style across the file — either Unix (LF), DOS/Windows (CRLF), or whatever the host platform produces.

Cross-platform contributors. Mixed CRLF and LF line endings show up in diffs as full-file changes when a contributor's editor normalises them.
Tool compatibility. Some YAML consumers and shell utilities behave unexpectedly with the "wrong" line ending for the platform.

[rules.new-lines]
level = "error"
type = "unix"

Option	Default	Description
`type`	`"unix"`	`"unix"` (LF), `"dos"` (CRLF), or `"platform"` to match the host operating system.

The rule operates on the bytes of the file, so visible examples are limited. With type: "unix":

A file whose every line ends with \n.

A file whose lines end with \r\n.

ryl --fix rewrites the file so every line ends with the configured character sequence.

ryl --fix rewrites all line endings to match type. Disable with:

[fix]
fixable = ["ALL"]
unfixable = ["new-lines"]

new-line-at-end-of-file — controls the single trailing newline at end of file.
trailing-spaces — reports whitespace before the line ending.