Add ARM Autobuild CI (#383)

* Add Arm Autobuild CI

* Update build.yml

.github/workflows/build.yml

@@ -56,6 +56,60 @@ jobs:
         files: subconverter_linux64.tar.gz
         draft: true
 
+  armhf_build:
+    name: Linux armhf Build
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up QEMU
+      uses: docker/setup-qemu-action@v1
+    - name: Add commit id into version
+      if: ${{ !startsWith(github.ref, 'refs/tags/') }}
+      run: SHA=$(git rev-parse --short HEAD) && sed -i 's/\(v[0-9]\.[0-9]\.[0-9]\)/\1-'"$SHA"'/' src/version.h
+    - name: Build
+      run: docker run -v $GITHUB_WORKSPACE:/root/workdir multiarch/alpine:armhf-latest-stable /bin/sh -c "apk add bash git nodejs npm && cd /root/workdir && chmod +x scripts/build.alpine.release.sh && bash scripts/build.alpine.release.sh"
+    - name: Upload
+      uses: actions/upload-artifact@v1
+      with:
+        name: subconverter_armhf
+        path: subconverter/
+    - name: Package Release
+      if: startsWith(github.ref, 'refs/tags/')
+      run: tar czf subconverter_armhf.tar.gz subconverter
+    - name: Draft Release
+      uses: softprops/action-gh-release@v1
+      if: startsWith(github.ref, 'refs/tags/')
+      with:
+        files: subconverter_armhf.tar.gz
+        draft: true
+
+  aarch64_build:
+    name: Linux aarch64 Build
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up QEMU
+      uses: docker/setup-qemu-action@v1
+    - name: Add commit id into version
+      if: ${{ !startsWith(github.ref, 'refs/tags/') }}
+      run: SHA=$(git rev-parse --short HEAD) && sed -i 's/\(v[0-9]\.[0-9]\.[0-9]\)/\1-'"$SHA"'/' src/version.h
+    - name: Build
+      run: docker run -v $GITHUB_WORKSPACE:/root/workdir multiarch/alpine:aarch64-latest-stable /bin/sh -c "apk add bash git nodejs npm && cd /root/workdir && chmod +x scripts/build.alpine.release.sh && bash scripts/build.alpine.release.sh"
+    - name: Upload
+      uses: actions/upload-artifact@v1
+      with:
+        name: subconverter_aarch64
+        path: subconverter/
+    - name: Package Release
+      if: startsWith(github.ref, 'refs/tags/')
+      run: tar czf subconverter_aarch64.tar.gz subconverter
+    - name: Draft Release
+      uses: softprops/action-gh-release@v1
+      if: startsWith(github.ref, 'refs/tags/')
+      with:
+        files: subconverter_aarch64.tar.gz
+        draft: true
+
   macos_build:
     name: macOS Build
     runs-on: macos-latest