ci: Create release on tag

.github/workflows/build.yml

@@ -190,6 +190,7 @@ jobs:
         path: ${{env.ARTIFACT_NAME}}
 
   Release:
+    if: github.event_name == 'push' && (github.ref == 'refs/heads/master' || startsWith(github.ref, 'refs/tags/xemu-v'))
     runs-on: ubuntu-latest
     needs: [Ubuntu, Windows, macOS]
     env:
@@ -203,7 +204,6 @@ jobs:
       run: |
         echo "::set-env name=BUILD_TAG::$(cat dist/tag)"
     - name: Create Release
-      if: github.event_name == 'push' && github.ref == 'refs/heads/master'
       id: create_release
       uses: actions/create-release@v1
       env:
@@ -214,7 +214,6 @@ jobs:
         draft: false
         prerelease: false
     - name: Upload Release Assets (Windows Debug Build)
-      if: github.event_name == 'push' && github.ref == 'refs/heads/master'
       id: upload-release-asset-win-debug
       uses: actions/upload-release-asset@v1.0.1
       env:
@@ -225,7 +224,6 @@ jobs:
         asset_path: dist/xemu-win-debug.zip
         asset_content_type: application/zip
     - name: Upload Release Assets (Windows Release Build)
-      if: github.event_name == 'push' && github.ref == 'refs/heads/master'
       id: upload-release-asset-win-release
       uses: actions/upload-release-asset@v1.0.1
       env:
@@ -236,7 +234,6 @@ jobs:
         asset_path: dist/xemu-win-release.zip
         asset_content_type: application/zip
     - name: Upload Release Assets (macOS Release Build)
-      if: github.event_name == 'push' && github.ref == 'refs/heads/master'
       id: upload-release-asset-macos-release
       uses: actions/upload-release-asset@v1.0.1
       env:
@@ -247,7 +244,6 @@ jobs:
         asset_path: dist/xemu-macos-release.zip
         asset_content_type: application/zip
     - name: Upload Release Assets (macOS Debug Build)
-      if: github.event_name == 'push' && github.ref == 'refs/heads/master'
       id: upload-release-asset-macos-debug
       uses: actions/upload-release-asset@v1.0.1
       env:
@@ -263,7 +259,7 @@ jobs:
   # namely: no network egress on package build, no custom scripting in source
   # package creation.
   PushToPPA:
-    if: github.event_name == 'push' && github.ref == 'refs/heads/master'
+    if: github.event_name == 'push' && (github.ref == 'refs/heads/master' || startsWith(github.ref, 'refs/tags/xemu-v'))
     needs: [Ubuntu, Windows, macOS]
     runs-on: ubuntu-latest
     steps: