# 使用 Homebrew, apt, Nix 安装 hpack 查看 hpack 的安装路径、可执行文件、元数据以及面向 AI 代理工作流的安全说明。 ## 安装 ```sh sudo av install brew:hpack ``` 其他安装命令: ### macOS - Homebrew (100%): ```sh brew install hpack ``` 证据: local Homebrew formula metadata ### Linux - Debian apt (92%): ```sh sudo apt install hpack ``` 证据: Debian stable package indexes: hpack from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz - Nix (92%): ```sh nix profile install nixpkgs#hpack ``` 证据: nixpkgs package indexes: hpack from https://raw.githubusercontent.com/NixOS/nixpkgs/master/pkgs/top-level/all-packages.nix ## 软件包事实 - **软件包键:** brew:hpack - **软件包管理器:** Homebrew - **版本:** 0.39.6 - **来源摘要:** Modern format for Haskell packages - **主页:** - **仓库:** - **最后更新:** 2026-07-22T03:24:33Z - **已生成:** 2026-08-03T19:37:03+00:00 ## 可执行文件 - hpack (别名) ## 安装行为 - Bottle: 不可用 ## 版本和新鲜度 - 页面生成时间: 2026-08-03 - 管理器版本: 0.39.6 ## 项目历史与用法 hpack is a Haskell packaging tool and package-description format built around `package.yaml`. It generates Cabal files while trying to reduce repetition and make common package metadata less verbose. ### 项目历史 Simon Hengel's hpack appeared on Hackage in April 2015 with version 0.1.0. The project README describes it as a modern alternative to the Cabal package format, guided by three principles: infer obvious information, give users control when needed, and avoid repeating metadata. hpack developed alongside Cabal rather than replacing it. The executable reads `package.yaml` and renders a `.cabal` file, while its changelog tracks years of Cabal compatibility work: SPDX license handling, generated module behavior, internal libraries, `build-tool-depends`, Cabal version inference, and support for newer GHC and Cabal releases. ### 采用历史 The README documents native `package.yaml` support in Stack and cabal2nix, while Hackage lists reverse dependencies including stack, pantry, cabal2nix, stack2cabal, stack-lib, and stackage2nix. That places hpack in the machinery around Haskell project templates, Stackage snapshots, and Nix conversion. Homebrew, Hackage, Stackage, and Linux distribution packaging make hpack available both as a Haskell library/program and as a standalone CLI. Its adoption is tied to `package.yaml` becoming a common Haskell project file, especially in Stack-oriented projects. ### 使用方式 Users write package metadata in `package.yaml`. Stack can consume that file directly, cabal2nix supports it natively, and other workflows can run `hpack` to generate the `.cabal` file before building. hpack also supports practical package-authoring features such as defaults files, globbing, verbatim Cabal fields, generated module controls, common fields, conditionals, executables, tests, benchmarks, and dependency syntax intended to keep package descriptions maintainable. ### 为什么软件包爱好者会关心 hpack is important because it sits at the contested boundary between package metadata as a human-maintained source file and package metadata as generated build-tool input. Package nerds care about that boundary: generated `.cabal` files can reduce repetition, but they also introduce questions about source-of-truth, reproducibility, diffs, and downstream tooling. Its long changelog is also a miniature history of Haskell packaging pressure points, from SPDX licenses and Cabal version syntax to generated modules and compatibility with Stack, Stackage, Nix, and newer Cabal releases. ### 时间线 - 2015: Hackage records hpack 0.1.0 uploaded by Simon Hengel. - 0.18.0: The changelog adds command-line input-file handling and executable shorthand. - 0.29.0: The changelog adds Cabal 2.1/2.2-related rendering and SPDX license handling. - 0.36.0: The changelog changes `Paths_` module inference for package specs using spec-version 0.36.0 or later. - 2026: Hackage records hpack 0.39.6, adding top-level `codeberg` support. ### Related projects - Cabal is the package format and build-tool ecosystem that hpack generates into. - Stack has built-in support for hpack's `package.yaml` workflow. - cabal2nix supports `package.yaml` natively, connecting hpack to Nix packaging workflows. - Stackage-related tools such as pantry, stack2cabal, stack-lib, and stackage2nix appear in Hackage reverse-dependency metadata. ### 来源 - - - - - - - ## 安全说明 narrow executable package without higher-risk signals. - **Geiger 风险:** 绿色 / 低 - narrow executable package without higher-risk signals ## 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 - Unix: package.yaml ## 其他软件包管理器记录 - Debian apt - hpack - 0.36.1-1+b1: normalized package name match | Debian stable package indexes: hpack from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | alternative format for Haskell packages | https://github.com/sol/hpack#readme - Nix - hpack: normalized package name match | nixpkgs package indexes: hpack from https://raw.githubusercontent.com/NixOS/nixpkgs/master/pkgs/top-level/all-packages.nix - Ubuntu apt - hpack - 0.35.2-1: normalized package name match | Ubuntu 24.04 LTS package indexes: hpack from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | alternative format for Haskell packages | https://github.com/sol/hpack#readme ## Combined YAML source View the package source record on GitHub. [combined/hpack.yml](https://github.com/mxcl/pkgdb/blob/main/combined/hpack.yml) ## 来源 - pkg.so package database - Geiger risk classifier - curated configuration and credential file locations - curated package history - pkgdb category and tag curation - external package-manager database matches - cross-ecosystem install command graph