Switch windows shell to bash (#910)

* BLD: switch windows shell to bash
* BLD: change python version

Author: WindQAQ

.github/workflows/ci_test.yml

@@ -42,22 +42,21 @@ jobs:
     runs-on: windows-latest
     strategy:
       matrix:
-        python-version: ['3.7.5']
+        python-version: ['3.7']
     steps:
       - uses: actions/checkout@v1
-      - uses: numworks/setup-msys2@v1
       - uses: actions/setup-python@v1
         with:
           python-version: ${{ matrix.python-version }}
       - name: CI test windows py${{ matrix.python-version }}
-        shell: cmd
+        shell: bash
         run: |
             python -m pip install wheel setuptools
-            curl -sSOL https://github.com/bazelbuild/bazel/releases/download/%BAZEL_VERSION%/bazel-%BAZEL_VERSION%-windows-x86_64.exe
-            echo export BAZEL_VC=/c/Program\ Files\ \(x86\)/Microsoft\ Visual\ Studio/2019/Enterprise/VC/  >>D:\a\_temp\msys\msys64\home\runneradmin\.bash_profile
-            echo export BAZEL_PATH=/d/a/addons/addons/bazel-%BAZEL_VERSION%-windows-x86_64.exe  >>D:\a\_temp\msys\msys64\home\runneradmin\.bash_profile
-            echo export PATH=/c/hostedtoolcache/windows/Python/${{ matrix.python-version }}/x64/:$PATH  >>D:\a\_temp\msys\msys64\home\runneradmin\.bash_profile
-            msys2do ./tools/ci_testing/addons_cpu.sh
+            curl -sSOL https://github.com/bazelbuild/bazel/releases/download/${BAZEL_VERSION}/bazel-${BAZEL_VERSION}-windows-x86_64.exe
+            export BAZEL_VC=/c/Program\ Files\ \(x86\)/Microsoft\ Visual\ Studio/2019/Enterprise/VC/
+            export BAZEL_PATH=/d/a/addons/addons/bazel-${BAZEL_VERSION}-windows-x86_64.exe
+            export PATH=/c/hostedtoolcache/windows/Python/${{ matrix.python-version }}/x64/:$PATH
+            bash -x -e ./tools/ci_testing/addons_cpu.sh
   sanity-check:
     name: Sanity Check
     runs-on: ubuntu-18.04

.github/workflows/windows_nightly.yml

@@ -13,19 +13,18 @@ jobs:
     runs-on: windows-latest
     strategy:
       matrix:
-        python-version: ['3.7.5']
+        python-version: ['3.7']
     steps:
       - uses: actions/checkout@v1
-      - uses: numworks/setup-msys2@v1
       - uses: actions/setup-python@v1
         with:
           python-version: ${{ matrix.python-version }}
       - name: Nightly test Windows py${{ matrix.python-version }}
-        shell: cmd
+        shell: bash
         run: |
           python -m pip install wheel setuptools
-          curl -sSOL https://github.com/bazelbuild/bazel/releases/download/%BAZEL_VERSION%/bazel-%BAZEL_VERSION%-windows-x86_64.exe
-          echo export BAZEL_VC=/c/Program\ Files\ \(x86\)/Microsoft\ Visual\ Studio/2019/Enterprise/VC/  >>D:\a\_temp\msys\msys64\home\runneradmin\.bash_profile
-          echo export BAZEL_PATH=/d/a/addons/addons/bazel-%BAZEL_VERSION%-windows-x86_64.exe  >>D:\a\_temp\msys\msys64\home\runneradmin\.bash_profile
-          echo export PATH=/c/hostedtoolcache/windows/Python/${{ matrix.python-version }}/x64/:$PATH  >>D:\a\_temp\msys\msys64\home\runneradmin\.bash_profile
-          msys2do ./tools/ci_testing/addons_cpu.sh
+          curl -sSOL https://github.com/bazelbuild/bazel/releases/download/${BAZEL_VERSION}/bazel-${BAZEL_VERSION}-windows-x86_64.exe
+          export BAZEL_VC=/c/Program\ Files\ \(x86\)/Microsoft\ Visual\ Studio/2019/Enterprise/VC/
+          export BAZEL_PATH=/d/a/addons/addons/bazel-${BAZEL_VERSION}-windows-x86_64.exe
+          export PATH=/c/hostedtoolcache/windows/Python/${{ matrix.python-version }}/x64/:$PATH
+          bash -x -e ./tools/ci_testing/addons_cpu.sh