ci: auto release

Signed-off-by: Jianhui Zhao <zhaojh329@gmail.com>

.github/workflows/release.yml

@@ -0,0 +1,60 @@
+name: release
+on:
+  push:
+    tags:
+    - 'v*'
+jobs:
+  release:
+    runs-on: ubuntu-20.04
+    outputs:
+      upload_url: ${{ steps.release.outputs.upload_url }} 
+    steps:
+      - id: changelog
+        uses: ardalanamini/auto-changelog@v1.1.0
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+      - id: release
+        uses: actions/create-release@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: ${{ github.ref }}
+          release_name: ${{ github.ref }}
+          draft: true
+          body: ${{steps.changelog.outputs.changelog}}
+  release-asset:
+    runs-on: ubuntu-20.04
+    needs: release
+    strategy:
+      matrix:
+        target: [ linux.amd64, linux.arm64, darwin.amd64, windows.amd64 ]
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: true
+      - id: get-version
+        uses: battila7/get-version-action@v2
+      - uses: actions/setup-go@v2
+        with:
+          go-version: 1.15.7
+      - id: release-asset
+        env:
+          target: ${{ matrix.target }}
+        run: |
+          version=${{ steps.get-version.outputs.version-without-v }}
+          os=$(echo $target | awk -F. '{print $1}')
+          arch=$(echo $target | awk -F. '{print $2}')
+          ./build.sh $os $arch
+          mv rttys-$os-$arch rttys-$os-$arch-$version
+          tar zcf rttys-$os-$arch-$version.tar.gz rttys-$os-$arch-$version
+          echo "::set-output name=asset-path::./rttys-$os-$arch-$version.tar.gz"
+          echo "::set-output name=asset-name::rttys-$os-$arch-$version.tar.gz"
+      - id: upload-release-asset 
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ needs.release.outputs.upload_url }}
+          asset_path: ${{ steps.release-asset.outputs.asset-path }}
+          asset_name: ${{ steps.release-asset.outputs.asset-name }}
+          asset_content_type: application/gzip