# github action 支持 macOS arm 架构了

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DevOps github
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前言

之前苦于github action不支持macOS arm架构，导致我为了打gopped macos包煞费苦心，我在 linux 上用xgo交叉编译出来macos arm64的动态库，然后在macOS x64上再打包成macos amd64的动态库，最后把两个架构的动态库合并成一个universal binary包，来同时支持Intel和Apple Silicon架构，如今github action终于支持macOS arm架构了，这下可以省去很多麻烦了。

开始改造

gopeed 目前的构建依赖图是这样的：

可以看到需要先编译出macos arm64的动态库，之前这里是用xgo交叉编译的，代码如下：

build-macos-arm64-lib:
  if: ${{ github.event.inputs.platform == 'all' || github.event.inputs.platform == 'macos' }}
  runs-on: ubuntu-latest
  needs: [get-release]
  steps:
    - uses: actions/checkout@v3
    - uses: actions/setup-go@v4
      with:
        go-version: ${{ env.GO_VERSION }}
    - name: Build
      env:
        VERSION: ${{ needs.get-release.outputs.version }}
      run: |
        go install src.techknowlogick.com/xgo@latest
        xgo -go go-$GO_VERSION.x --targets=darwin/arm64 -tags="nosqlite" -ldflags="-w -s -X github.com/GopeedLab/gopeed/pkg/base.Version=$VERSION" -buildmode=c-shared -pkg=bind/desktop -out=libgopeed .
        mv libgopeed-*.dylib libgopeed.dylib
    - uses: actions/upload-artifact@v3
      with:
        name: macos-arm64-lib
        path: libgopeed.dylib

现在有了macOS arm架构的支持，我们可以直接用macos-latest-arm来构建macos arm64的动态库，代码如下：

build-macos-arm64-lib:
  if: ${{ github.event.inputs.platform == 'all' || github.event.inputs.platform == 'macos' }}
  runs-on: macos-latest
  needs: [get-release]
  steps:
    - uses: actions/checkout@v3
    - uses: actions/setup-go@v4
      with:
        go-version: ${{ env.GO_VERSION }}
    - name: Build
      env:
        VERSION: ${{ needs.get-release.outputs.version }}
      run: |
        go build -tags nosqlite -ldflags="-w -s -X github.com/GopeedLab/gopeed/pkg/base.Version=$VERSION" -buildmode=c-shared -o libgopeed.dylib github.com/GopeedLab/gopeed/bind/desktop
    - uses: actions/upload-artifact@v3
      with:
        name: macos-arm64-lib
        path: libgopeed.dylib

这样一下简单了很多，而且节省了大量的构建时间，因为xgo这货要拉个很大的镜像，然后再编译，速度真的很慢，目前基本上是从 3 分钟缩短到了 30 秒，非常不错。

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