[Enhancement] Support building mmengine-lite

.github/workflows/deploy.yml

@@ -26,3 +26,24 @@ jobs:
         run: |
           pip install twine
           twine upload dist/* -u __token__ -p ${{ secrets.pypi_password }}
+
+  build-n-publish-lite:
+    runs-on: ubuntu-latest
+    if: startsWith(github.event.ref, 'refs/tags')
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python 3.7
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.7
+      - name: Install torch
+        run: pip install torch
+      - name: Install wheel
+        run: pip install wheel
+      - name: Build MMEngine-lite
+        run: sed -i "s/os.getenv('MMENGINE_LITE', '0')/os.getenv('MMENGINE_LITE', '1')/g" setup.py
+             python setup.py sdist bdist_wheel
+      - name: Publish distribution to PyPI
+        run: |
+          pip install twine
+          twine upload dist/* -u __token__ -p ${{ secrets.pypi_password }}

setup.py

@@ -126,7 +126,7 @@ def gen_packages_items():
             install_requires.append(choose_requirement(main, secondary))
 
 setup(
-    name='mmengine',
+    name='mmengine' if os.getenv('MMENGINE_LITE', '0') == '0' else 'mmengine-lite',
     version=get_version(),
     description='Engine of OpenMMLab projects',
     long_description=readme(),