no_trailing_whitespace

No line may end with space or tab.

Options

This rule takes no kind-specific options.

Plus the common paths, level, id, when, and expect_matches fields. This table is generated from the JSON Schema; option types and defaults are authoritative.

Example

Source files with trailing spaces or tabs

The rule fires on this repository:

• src/
• src/bad.rs✗

  ✗ error no-ws

  1:1 trailing whitespace on line 1

• src/good.rs✓
• src/tabbed.md✗

  ✗ error no-ws

  1:1 trailing whitespace on line 1

src/bad.rs

fn bad() {}

src/good.rs

fn good() {}

src/tabbed.md

# Heading

With this .alint.yml:

version: 1
rules:
  - id: no-ws
    kind: no_trailing_whitespace
    paths: "src/**/*"
    level: error

alint check reports:

--- src/bad.rs -----------------------------------------------------------------
  x  error    no-ws
              1:1  trailing whitespace on line 1

--- src/tabbed.md --------------------------------------------------------------
  x  error    no-ws
              1:1  trailing whitespace on line 1

Summary (2 violations):
  x 2 errors
  0 passing * 1 failing

Every source file is free of trailing whitespace

This repository is compliant:

• src/
• src/one.rs✓
• src/two.rs✓

src/one.rs

fn one() {}

src/two.rs

fn two() {}

With this .alint.yml:

version: 1
rules:
  - id: no-ws
    kind: no_trailing_whitespace
    paths: "src/**/*.rs"
    level: error

alint check reports:

v All 1 rule(s) passed.