flutter.so和flutter_embedding.har应该从bin/cache/artifacts/engine/ohos里面获取 · Pull Request !134 · OpenHarmony-SIG/flutter_flutter

**【任务描述】**

和flutter的iOS,Android的实现对齐，从bin/cache/artifacts/engine/ 中的ios，ios-profile, ios-release文件夹中获取

现在的方案是从templ中获取的，没有和正式的方案对齐.

**【解决方案】**

1.支持 `flutter precache --ohos` 命令
2.flutter.so, har, VmserviceSo 都优先从 bin/cache/engine/ohos-xxx 获取
  其中arm64 详细路径格式是 bin/cache/engine/ohos-{架构}-{profile/release}：
    libflutter.so  
        [debug] bin/cache/engine/ohos-arm64/libflutter.so
        [profile] bin/cache/engine/ohos-arm64-profile/libflutter.so
        [release] bin/cache/engine/ohos-arm64-release/libflutter.so

flutter_embedding.har 
        [debug] bin/cache/engine/ohos-arm64/flutter_embedding.har
        [profile] bin/cache/engine/ohos-arm64-profile/flutter_embedding.har
        [release] bin/cache/engine/ohos-arm64-release/flutter_embedding.har

libvmservice_snapshot.so
        [profile] bin/cache/engine/ohos-arm64-profile/libvmservice_snapshot.so

模拟器x64还未实现

3. 当使用localengine指定本地引擎产物时

libflutter.so  
        [debug] 引擎目录/src/out/ohos_debug_unopt_arm64/libflutter.so
        [profile] 引擎目录/src/out/ohos_profile_arm64/libflutter.so
        [release] 引擎目录src/out/ohos_release_arm64/libflutter.so

flutter_embedding.har 
        [debug] 引擎目录/src/out/ohos_debug_unopt_arm64/ohos/flutter_embedding.har
        [profile] 引擎目录/src/out/ohos_profile_arm64/ohos/flutter_embedding.har
        [release] 引擎目录src/out/ohos_release_arm64/ohos/flutter_embedding.har

libvmservice_snapshot.so
        [profile] 引擎目录src/out/ohos_profile_arm64/gen/flutter/shell/vmservice/ohos/libs/libvmservice_snapshot.so

**【未实现/待讨论】**

**flutter_flutter**

1. ohos模拟器产物（包含window,mac,linux）产物命名
    建议遵循 ohos-{架构}-[profile/release]   注：debug时架构后面不用加上debug
     例如：ohos-arm64-profile
2. 是否需要预留纯window，mac，liunx产物
    ohos的话好像不能代表手机设备，是否需要改成其他名字？ 参考苹果： iOS与Darwin
3. build_info.dart 里面的 ohos 是什么架构？
        https://gitee.com/openharmony-sig/flutter_flutter/blob/dev/packages/flutter_tools/lib/src/build_info.dart

```
          ohos,
          ohos_arm,
          ohos_arm64,
          ohos_x64,
        ```
   
 **flutter_engine**
 
1. flutter_embedding.har内容除了ets代码外，是否也把各个so也放进来

[这里](http://https://gitee.com/openharmony-sig/flutter_flutter/blob/dev/packages/flutter_tools/lib/src/artifacts.dart#L54)只保留一个har文件，移除so

```
 /// the flutter engine runtime
  flutterEngineSo,
```

2. profile是打包的vmservice_snapshot.so如何存放 
        android是打包在jar包里面的
3. 模仿android的jar包打包，把har的打包逻辑放到gn里面？
   将 ohos.py的调用挪到gn里面去调用. 参考[shell/platform/android/BUILD.gn](https://gitee.com/openharmony-sig/flutter_engine/blob/dev/shell/platform/android/BUILD.gn)

```
action("android_jar") {
  script = "//build/android/gyp/create_flutter_jar.py"

...
}
  ```

类型	指派人员	状态
审查	zjzhu aibin lihui	进行中 (0/1人)
测试	openharmony_ci	进行中 (0/1人)

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