indent_style

Every non-blank line indents with the configured style (tabs or spaces). When style: spaces, optional width enforces a multiple.

Check-only: tab-width-aware reindentation is language-specific. Pair with your editor’s “reindent on save” for remediation.

Options

Option	Type	Required	Default	Description
style	one of tabs | spaces	yes		Required indentation style: tabs rejects any leading space; spaces rejects any leading tab.
width	integer (>= 1)		null	When style: spaces, the leading-space count on every non-blank line must be a multiple of this. Ignored for style: tabs.

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

Example

A Go file indented with spaces instead of tabs

The rule fires on this repository:

src/
src/bad.go
src/ok.go

src/bad.go

package main

func y() {
    return
}

src/ok.go

package main

func x() {
  return
}

With this .alint.yml:

version: 1
rules:
  - id: go-tabs
    kind: indent_style
    paths: "src/**/*.go"
    style: tabs
    level: error

alint check reports:

--- src/bad.go -----------------------------------------------------------------
  x  error    go-tabs
              4:1  line 4 indented with the wrong character (expected tabs)

Summary (1 violation):
  x 1 error
  0 passing * 1 failing

Every Go file is indented with tabs

This repository is compliant:

src/
src/a.go
src/b.go

src/a.go

package main

func x() {
  return
}

src/b.go

package main

func y() {
  if true {
    return
  }
}

With this .alint.yml:

version: 1
rules:
  - id: go-tabs
    kind: indent_style
    paths: "src/**/*.go"
    style: tabs
    level: error

alint check reports:

v All 1 rule(s) passed.