Add action to build eggs

Override egg_info options from setup.cfg

Reference: avocado-framework/avocado#5148

Signed-off-by: Ana Guerrero Lopez <[email protected]>

.github/workflows/eggs.yml

@@ -0,0 +1,38 @@
+name: Build and upload eggs
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'Release version'
+        required: true
+        default: 'v0.0'
+
+jobs:
+  build-and-publish-eggs:
+    name: Build eggs and publish them
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: [3.6, 3.7, 3.8, 3.9, 3.10.0]
+      fail-fast: false
+
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          persist-credentials: false
+          fetch-depth: 0
+          ref: ${{ github.event.inputs.version }}
+      - name: Set up Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Build eggs
+        run: python setup.py egg_info --no-date --tag-build "" bdist_egg
+      - name: Upload binaries to release
+        uses: svenstaro/upload-release-action@v2
+        with:
+          repo_token: ${{ secrets.RELEASE_TOKEN }}
+          file: ${{ github.workspace }}/dist/setuptools*
+          tag: ${{ github.event.inputs.version }}
+          overwrite: true
+          file_glob: true