macOS
Homebrewverified · 100%
brew install dhall-yamllocal Homebrew formula metadata
brew
Install dhall-yaml with Homebrew, Nix, pacman
Convert between Dhall and YAML. Version 1.2.12 via Homebrew; verified from local package data.
install
Additional install commands
Linux
Nixverified · 92%
nix profile install nixpkgs#dhall-yamlnixpkgs package indexes · dhall-yaml · source: raw.githubusercontent.com
Arch Linux pacmanverified · 92%
sudo pacman -S dhall-yamlArch Linux sync databases · dhall-yaml · source: geo.mirror.pkgbuild.com
overview
Package summary
Convert between Dhall and YAML
Project links
Commands and aliases
- dhall-to-yaml-ng
- yaml-to-dhall
history
Project history and usage
dhall-yaml is the Dhall ecosystem package for moving between typed Dhall expressions and YAML. In package-manager terms it matters because it turns Dhall from a configuration language into a practical generator for the YAML files expected by Kubernetes, CI systems, and other infrastructure tools.
Project history
The Hackage metadata for dhall-yaml 1.0.0 identifies Gabriel Gonzalez as author, gives 2019 copyright, and describes the package as both a library and executable tooling for converting between Dhall expressions and YAML. It lives in the dhall-lang/dhall-haskell repository alongside the main Dhall implementation.
Adoption history
dhall-yaml adoption follows Dhall's broader use as a programmable configuration format. Official Dhall documentation teaches generation of JSON and YAML, and its production-use page lists organizations using dhall-to-yaml in infrastructure and application configuration workflows.
How it is used
The package exposes the dhall-to-yaml-ng executable for Dhall-to-YAML conversion and yaml-to-dhall for the reverse direction, with library modules for Haskell callers. It is usually installed as a companion to Dhall when a downstream system still consumes YAML.
Why package nerds care
For package nerds, dhall-yaml is the adapter layer that lets Dhall compete with hand-written YAML without requiring the target ecosystem to understand Dhall. It is small, specialized, and valuable mostly because YAML is everywhere and typed configuration is not.
Timeline
- 2019: dhall-yaml 1.0.0 appears on Hackage with dhall-to-yaml-ng and yaml-to-dhall executables.
- 2026: Official Dhall documentation still presents JSON/YAML generation as a core getting-started workflow.
Related projects
- dhall provides the core language and interpreter.
- dhall-json provides related JSON conversion tooling in the same ecosystem.
Sources
- https://hackage.haskell.org/package/dhall-yaml-1.0.0
- https://hackage.haskell.org/package/dhall-yaml-1.0.0/dhall-yaml.cabal
- https://docs.dhall-lang.org/tutorials/Getting-started_Generate-JSON-or-YAML.html
- https://docs.dhall-lang.org/discussions/Dhall-in-production.html
- https://github.com/dhall-lang/dhall-haskell/tree/main/dhall-yaml
security posture
Risk level: green
narrow executable package without higher-risk signals.
Risk classifier
green risk · low confidence · appliance
Why
- narrow executable package without higher-risk signals
Signals
- metadata:no-higher-risk-signals
Install behavior
- No Homebrew post-install hook is recorded in formula metadata.
- Homebrew bottle metadata is available for 6 platform targets.
- Installs with 1 runtime dependencies.
- Build metadata lists 2 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.
executables
Installed executables
| Command | Kind | Exposure | Note |
|---|---|---|---|
dhall-to-yaml-ng | cli | global executable | |
yaml-to-dhall | 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 generated2026-07-08
manager version1.2.12
manager updated
local dataok
upstreamnot checked
latest detectednot detected
https://github.com/dhall-lang/dhall-haskell
- infoNo package-manager update timestamp was available.low confidence
- infoNo cached GitHub release or tag data was available.https://github.com/dhall-lang/dhall-haskellnone confidence
install metadata
Package metadata
| Package key | brew:dhall-yaml |
|---|---|
| Version | 1.2.12 |
| Package manager | Homebrew |
| Package manager page | https://formulae.brew.sh/formula/dhall-yaml |
| Homepage | https://github.com/dhall-lang/dhall-haskell/tree/main/dhall-yaml |
| Repository | https://github.com/dhall-lang/dhall-haskell |
| Upstream docs | https://github.com/dhall-lang/dhall-haskell/tree/main/dhall-yaml#readme |
| License | BSD-3-Clause |
| Source archive | https://hackage.haskell.org/package/dhall-yaml-1.2.12/dhall-yaml-1.2.12.tar.gz |
| Dependencies | gmp |
| Build dependencies | cabal-install, ghc |
| Uses from macOS | libffi, ncurses |
| 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 | dhall-yaml |
| 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 |
|
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%
dhall-yaml
nix profile install nixpkgs#dhall-yaml- normalized package name match
- Matched by: Dhall Yaml
pacman95%
dhall-yaml 1.2.12-213
Convert between Dhall and YAML
https://github.com/dhall-lang/dhall-haskell/tree/master/dhall-yaml
sudo pacman -S dhall-yaml- License: GPL3
- Architecture: x86_64
- 11 dependencies
- normalized package name match
- Matched by: Dhall Yaml
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.
Used sources
- Geiger risk classifier
- Nucleus package database
- av.db category and tag curation
- cross-ecosystem install command graph
- curated package history
- external package-manager database matches
- package relationship graph
- package version freshness
- package-page enrichment