# 使用 Homebrew, Nix, zypper 安装 lit

查看 lit 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:lit
```

其他安装命令:

### macOS

- Homebrew (100%):

```sh
brew install lit
```

  证据: local Homebrew formula metadata

### Linux

- Nix (92%):

```sh
nix profile install nixpkgs#lit
```

  证据: nixpkgs package indexes: lit from https://raw.githubusercontent.com/NixOS/nixpkgs/master/pkgs/top-level/all-packages.nix

- zypper (92%):

```sh
sudo zypper install python313-lit
```

  证据: openSUSE Tumbleweed package metadata: python313-lit from https://download.opensuse.org/tumbleweed/repo/oss/repodata/50b07339cb64c8ed4091bdbabddadc1ff5737b090e478818a195b40d8a3292861a879139b4a3987c31109699fde9fbf4a716367ddf4eef77da75f96e3193d6ed-primary.xml.zst

## 软件包事实

- **软件包键:** brew:lit
- **软件包管理器:** Homebrew
- **版本:** 18.1.8
- **来源摘要:** Portable tool for LLVM- and Clang-style test suites
- **主页:** <https://llvm.org>
- **最后更新:** 2026-06-22T14:05:11-07:00
- **已生成:** 2026-08-03T19:37:03+00:00

## 可执行文件

- lit (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: 18.1.8
## 项目历史与用法

lit, the LLVM Integrated Tester, is the portable test runner used for LLVM- and Clang-style test suites. It discovers tests, runs them in parallel, summarizes pass and failure results, and drives the small regression tests that are central to LLVM development.

### 项目历史

lit developed inside the LLVM project as the project's Python-based test runner. The LLVM documentation describes it as lightweight, portable, and intentionally simple at the command line, while still flexible enough to support different test formats and suite layouts.

As LLVM grew into a family of compiler infrastructure projects, lit became part of the shared contributor workflow. The LLVM Testing Infrastructure Guide documents regression tests under `llvm/test`, `llvm-lit` invocations for individual files and directories, `check-*` build targets, and the use of lit configuration files such as `lit.cfg` and `lit.site.cfg.py`.

### 采用历史

lit's adoption is unusually deep for a small Python test tool because it is carried by LLVM, Clang, LLD, MLIR, and downstream compiler projects. The PyPI package made the runner available outside a full LLVM checkout, while distribution packages such as Homebrew's `lit` make it convenient for projects that want LLVM-style tests without building all of LLVM.

### 使用方式

The common pattern is to put `RUN:` lines in test files, use FileCheck or project tools to validate output, and run suites through `lit`, `llvm-lit`, or build-system targets like `check-llvm` and `check-all`. lit's configuration files let projects define substitutions, features, test suffixes, environment settings, and custom formats.

### 为什么软件包爱好者会关心

lit matters to package maintainers because it is a tiny command whose real importance comes from compiler ecosystems. Packaging it separately lets downstream projects run conformance and regression tests without hauling in an entire LLVM build tree.

### 时间线

- 2010-09-18: The `lit` package published version 0.1.0 on PyPI.
- 2024-06-25: PyPI recorded the 18.1.8 release of the standalone `lit` package.
- 2026: LLVM 23.0.0git documentation described lit as the LLVM Integrated Tester and documented response files, parallel execution, result output, and test-suite infrastructure.

### Related projects

- Related projects include LLVM, Clang, LLD, MLIR, FileCheck, GoogleTest-based LLVM unit tests, and the LLVM test-suite repository.

### 来源

- <https://github.com/llvm/llvm-project>
- <https://llvm.org/docs/CommandGuide/lit.html>
- <https://llvm.org/docs/TestingGuide.html>
- <https://pypi.org/project/lit/>


## 安全说明

narrow executable package without higher-risk signals.

- **Geiger 风险:** 绿色 / 低
- narrow executable package without higher-risk signals

## 其他软件包管理器记录

- Nix - lit: normalized package name match | nixpkgs package indexes: lit from https://raw.githubusercontent.com/NixOS/nixpkgs/master/pkgs/top-level/all-packages.nix
- zypper - python313-lit - 18.1.8-1.4: normalized package name match | openSUSE Tumbleweed package metadata: python313-lit from https://download.opensuse.org/tumbleweed/repo/oss/repodata/50b07339cb64c8ed4091bdbabddadc1ff5737b090e478818a195b40d8a3292861a879139b4a3987c31109699fde9fbf4a716367ddf4eef77da75f96e3193d6ed-primary.xml.zst | A portable tool for executing test suites | http://llvm.org/cmds/lit.html
- zypper - python314-lit - 18.1.8-1.4: normalized package name match | openSUSE Tumbleweed package metadata: python314-lit from https://download.opensuse.org/tumbleweed/repo/oss/repodata/50b07339cb64c8ed4091bdbabddadc1ff5737b090e478818a195b40d8a3292861a879139b4a3987c31109699fde9fbf4a716367ddf4eef77da75f96e3193d6ed-primary.xml.zst | A portable tool for executing test suites | http://llvm.org/cmds/lit.html


## Combined YAML source

View the package source record on GitHub. [combined/lit.yml](https://github.com/mxcl/pkgdb/blob/main/combined/lit.yml)


## 来源

- pkg.so package database
- Geiger risk classifier
- curated package history
- pkgdb category and tag curation
- external package-manager database matches
- cross-ecosystem install command graph