[Fix] Update pip install mmcv command in ci (#187)

* update pip install mmcv command in ci

* update pip install mmcv command in ci

* fix ci

* fix ci

.github/workflows/build.yml

@@ -28,19 +28,19 @@ jobs:
     strategy:
       matrix:
         python-version: [3.7]
-        torch: [1.3.0+cpu, 1.5.0+cpu, 1.6.0+cpu]
+        torch: [1.3.0, 1.5.0, 1.6.0]
         include:
-          - torch: 1.3.0+cpu
-            torchvision: 0.4.2+cpu
-          - torch: 1.5.0+cpu
-            torchvision: 0.6.0+cpu
-          - torch: 1.6.0+cpu
-            torchvision: 0.7.0+cpu
-          - torch: 1.6.0+cpu
-            torchvision: 0.7.0+cpu
+          - torch: 1.3.0
+            torchvision: 0.4.2
+          - torch: 1.5.0
+            torchvision: 0.6.0
+          - torch: 1.6.0
+            torchvision: 0.7.0
+          - torch: 1.6.0
+            torchvision: 0.7.0
             python-version: 3.6
-          - torch: 1.6.0+cpu
-            torchvision: 0.7.0+cpu
+          - torch: 1.6.0
+            torchvision: 0.7.0
             python-version: 3.8
 
     steps:
@@ -53,10 +53,10 @@ jobs:
         run: pip install Pillow==6.2.2
         if: ${{matrix.torchvision < 0.5}}
       - name: Install PyTorch
-        run: pip install --use-deprecated=legacy-resolver torch==${{matrix.torch}} torchvision==${{matrix.torchvision}} -f https://download.pytorch.org/whl/torch_stable.html
+        run: pip install --use-deprecated=legacy-resolver torch==${{matrix.torch}}+cpu torchvision==${{matrix.torchvision}}+cpu  -f https://download.pytorch.org/whl/torch_stable.html
       - name: Install MMCV
         run: |
-          pip install --use-deprecated=legacy-resolver mmcv-full==latest+torch${{matrix.torch}} -f https://download.openmmlab.com/mmcv/dist/index.html
+          pip install --use-deprecated=legacy-resolver mmcv-full -f https://download.openmmlab.com/mmcv/dist/cpu/torch${{matrix.torch}}/index.html
           python -c 'import mmcv; print(mmcv.__version__)'
       - name: Install mmcls dependencies
         run: |
@@ -72,7 +72,7 @@ jobs:
           coverage report -m --omit="mmcls/utils/*","mmcls/apis/*"
       # Only upload coverage report for python3.7 && pytorch1.5
       - name: Upload coverage to Codecov
-        if: ${{matrix.torch == '1.5.0+cpu' && matrix.python-version == '3.7'}}
+        if: ${{matrix.torch == '1.5.0' && matrix.python-version == '3.7'}}
         uses: codecov/[email protected]
         with:
           file: ./coverage.xml