# hello-gn

**Repository Path**: xiaojye/hello-gn

## Basic Information

- **Project Name**: hello-gn
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: main
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2025-05-22
- **Last Updated**: 2025-05-22

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

## Hello GN

### 构建hello
1. 清理输出目录(首次构建可忽略此步骤) `./gn clean out/Default`
2. 基于gn生成ninja文件 `./gn gen out/Default`
3. 使用ninja编译目标 `ninja -C out/Default hello`
4. 运行编译产物 `out/Default/hello/hello`

### GN 指南

#### gn命令
- analyze: Analyze which targets are affected by a list of files.
- args: Display or configure arguments declared by the build.
- check: Check header dependencies.
- clean: Cleans the output directory.
- clean_stale: Cleans the stale output files from the output directory.
- desc: Show lots of insightful information about a target or config.
- format: Format .gn files.
- gen: Generate ninja files.
- help: Does what you think.
- ls: List matching targets.
- meta: List target metadata collection results.
- outputs: Which files a source/target make.
- path: Find paths between two targets.
- refs: Find stuff referencing a target or file.

#### target类型
- executable, shared_library, static_library
- loadable_module: 运行时加载模块
- source_set: 被编译的源文件集合，这种编译不会生成任何库文件
- group: 声明一组target，你可以写一个group，里面放不同的库target，使用的时候就用group的名字代表这些targets
- copy： 拷贝文件
- action, action _foreach: 运行一个脚本时所用
- bundle_data, create_bundle: Mac & iOS
- component: shared library or source set depending on mode
- test
- app: executable or iOS application + bundle
- android_apk, generate_jni, etc.: Lots of Android ones!