rumdl-action

Version updated for https://github.com/rvben/rumdl to version v0.1.30.

• This action is used across all versions by 3 repositories.

Action Type

This is a Composite action.

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Action Summary

The GitHub Action “rumdl” is a high-performance Markdown linter and formatter built with Rust. It automates the process of identifying and correcting issues in Markdown files, ensuring consistency, best practices, and compatibility across various Markdown flavors. Designed for speed and efficiency, it provides features like configurable linting rules, automatic formatting, and seamless integration with CI/CD pipelines.

Release notes

Added

• CLI: rumdl init now supports --preset flag with default, google, and relaxed variants, and --output flag for custom file paths. The Google preset follows Google’s developer documentation style guide; the relaxed preset disables noisy rules and uses consistent style detection (#468)

Fixed

• MD076: Blank lines required by MD031 (blanks-around-fences) or MD058 (blanks-around-tables) inside list items are now classified as structural and excluded from the loose/tight consistency calculation. Previously, indented code blocks inside loose lists triggered false “Missing blank line between list items” warnings (#461)
• MD020: Fix byte-offset vs character-position handling for column reporting with Unicode content
• MD038: Fix panic on CJK text by converting character positions to byte offsets before slicing
• MD054: Correct column indexing for code span detection and match range calculation
• MD057: Fix image URL byte offset calculation that used character-based offset as byte offset
• MD060: Use Unicode width for table alignment detection so CJK-heavy tables are recognized correctly
• MD063: Use sentinel value for unfound word positions to prevent false canonical form matches at byte offset 0
• MD010: Restore distinction between fenced code blocks (skip) and indented code blocks (flag tabs) that was lost when switching to LintContext
• MD035: Skip HR-style checking inside MkDocs HTML markdown blocks where --- separators are used for grid cards
• MD052: Replace manual fenced-code-block tracking with LintContext’s pre-computed in_code_block field
• MD009: Remove dead branch in fix replacement that could never execute
• MD011: Rewrite fix mode to reuse check results instead of maintaining a parallel implementation
• MD025: Use whole-word matching for section indicators to prevent false positives (e.g., “Indexing” matching the “index” indicator)
• MD029: Include ) in quick-check early return so parenthesis-style ordered lists are not silently skipped
• MD040: Use 1-indexed line/column for config error warnings instead of invalid (0,0)
• MD041: Compute actual fix replacements in check mode instead of emitting empty-string placeholders that would delete content if applied
• MD050: Delegate HTML tag boundary check to shared method so check and fix use identical logic
• MD064: Fix leading_spaces calculation in reference link detection to use original line, not already-trimmed string
• MD072: Track in_string state when counting JSON braces/brackets so braces inside string values don’t break nesting depth calculation
• MD073: Replace regex-based code span stripping with correct parser handling multi-backtick spans and CommonMark space-stripping rules; rewrite TOC validation to use count-based duplicate anchor comparison
• MD074: Add content-hash cache invalidation so changed mkdocs.yml files are re-validated
• Config: Preserve Option fields in schema so nullable keys are not flagged as unknown (#467)

Downloads

Installation

Using uv (Recommended)

uv tool install rumdl

Using pip

pip install rumdl

Using pipx

pipx install rumdl

Direct Download

Download the appropriate binary for your platform from the table above, extract it, and add it to your PATH.

• rvben
• GitHub Actions