install

Additional install commands

macOS

Homebrewverified · 100%

brew install rubyfmt

local Homebrew formula metadata

Linux

Nixverified · 92%

nix profile install nixpkgs#rubyfmt

nixpkgs package indexes · pkgs/by-name/ru/rubyfmt/package.nix · source: api.github.com

overview

Package summary

Ruby autoformatter

Project links

Commands and aliases

rubyfmt

history

Project history and usage

rubyfmt is a fast, opinionated automatic formatter for Ruby source code, implemented in Rust.

Project history

rubyfmt began as an effort to provide Ruby with a fast, opinionated automatic formatter. The implementation evolved into a Rust-based formatter with a command-line interface and reusable formatting library.

Adoption history

rubyfmt gained distribution through Homebrew and Nix and offers integrations for editors including Ruby LSP, VS Code, Vim, Neovim, and JetBrains IDEs. Its official repository remains the center of installation and integration guidance.

How it is used

Users run `rubyfmt FILE` to print formatted output, `rubyfmt -i FILE` to rewrite in place, or `rubyfmt -c FILE` to inspect changes. A project-root `.rubyfmtignore` excludes paths using gitignore-style syntax.

Why package nerds care

rubyfmt represents the opinionated, minimal-configuration school of formatters in the Ruby ecosystem and is technically notable for implementing Ruby formatting machinery in Rust. Its single-purpose CLI makes it easy to insert into editor and automation workflows.

Timeline

2019: Public rubyfmt experiments and project development were underway.
Present: The project provides a Rust CLI, editor integrations, and a reusable formatting library.

Related projects

Ruby LSP can invoke rubyfmt through its formatter add-on. Editor integrations also exist for Vim, Neovim, VS Code, and JetBrains environments.

Sources

https://github.com/fables-tales/rubyfmt
https://github.com/fables-tales/rubyfmt/releases
source_facts.package-manager

security posture

No protected-tool coverage found yet

No matching local secret-handling manifest was found for rubyfmt. Package metadata is still published here so future coverage has a stable package URL.

Install behavior

No Homebrew post-install hook is recorded in formula metadata.
Homebrew bottle metadata is available for 6 platform targets.
Build metadata lists 1 build dependencies.

Recommended review

Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.

local files

Configuration and credential file locations

These source-backed paths show where this package keeps local settings or durable credentials. Automic Vault can use them as review targets for secret scanning, migration, and command approval.

Configuration files

Config paths the tool may read or write during local use.

Unix: .rubyfmtignore
Windows: .rubyfmtignore

executables

Installed executables

Command	Kind	Exposure	Note
`rubyfmt`	cli	global executable

freshness

Version and freshness

These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.

page generated2026-09-19

manager version0.14.1

manager updated2026-09-12

local dataok

upstreamcurrent

latest detectedv0.14.1

https://github.com/fables-tales/rubyfmt

okNo freshness warnings were generated.

install metadata

Package metadata

Package key	brew:rubyfmt
Version	0.14.1
Package manager	Homebrew
Package manager page	https://formulae.brew.sh/formula/rubyfmt
Homepage	https://github.com/fables-tales/rubyfmt
Repository	https://github.com/fables-tales/rubyfmt
License	MIT
Source archive	https://github.com/fables-tales/rubyfmt/archive/refs/tags/v0.14.1.tar.gz
Last updated	2026-09-12T11:28:13Z
Pulse	updated
Build dependencies	rust
Bottle	available (on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux)
Homebrew post-install	not defined
Service	none declared

registry facts

Source database details

Source Database	Homebrew formula API
Tap	homebrew/core
Full Name	rubyfmt
Version Scheme	0
Revision	0
Head Version	HEAD
Bottle Stable Root URL	https://ghcr.io/v2/homebrew/core
Deprecated	no
Disabled	no
Keg Only	no
URL Keys	head stable

source database matches

Other package-manager records

Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.

Nix95%

rubyfmt

nix profile install nixpkgs#rubyfmt

normalized package name match
Matched by: Rubyfmt

nixpkgs package indexes · api.github.com · nixpkgs package indexes: pkgs/by-name/ru/rubyfmt/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1

package graph

Links come from deterministic package relationships, av.db category and tag curation, ecosystem matches, and package hub membership.

source trail

Generated from repository data

This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.

Combined YAML source

View the package source record on GitHub.

combined/rubyfmt.yml

Used sources

Geiger risk classifier
cross-ecosystem install command graph
curated configuration and credential file locations
curated package history
external package-manager database matches
package relationship graph
package version freshness
package-page enrichment
pkg.so package database
pkgdb category and tag curation

Install rubyfmt with Homebrew, Nix