ci: more fiddling - set default shell for windows

I'm not sure what the difference between pwsh and powershell is, but I
think we need powershell for official Clojure on Windows?

Author: lread

.github/workflows/native-image-test.yml

@@ -4,16 +4,24 @@ on: [push, pull_request]
 
 jobs:
   build:
-    runs-on: ${{ matrix.os }}
+    runs-on: ${{ matrix.sys.os }}-latest
     strategy:
       fail-fast: false
       matrix:
-        os: [ windows-latest, ubuntu-latest, macos-latest ]
+        sys:
+          # override the default of pwsh for windows
+          - { os: windows, shell: powershell }
+          - { os: ubuntu,  shell: bash  }
+          - { os: macos,   shell: bash  }
         graal-java: [ 11 ]
         test: [ test-native, test-native-sci ]
         clojure-version: [ '1.11' ]
 
-    name: ${{ matrix.os }},jdk ${{ matrix.graal-java }},${{ matrix.test }},clj ${{ matrix.clojure-version }}
+    defaults:
+      run:
+        shell: ${{ matrix.sys.shell }}
+
+    name: ${{ matrix.sys.os }},jdk ${{ matrix.graal-java }},${{ matrix.test }},clj ${{ matrix.clojure-version }}
 
     steps:
     - uses: actions/checkout@v3

.github/workflows/unit-test.yml

@@ -4,22 +4,30 @@ on: [push, pull_request]
 
 jobs:
   build:
-    runs-on: ${{ matrix.os }}
+    runs-on: ${{ matrix.sys.os }}-latest
     strategy:
       fail-fast: false
       matrix:
-        os: [ windows-latest, ubuntu-latest, macos-latest ]
+        sys:
+          # override the default of pwsh for windows
+          - { os: windows, shell: powershell }
+          - { os: ubuntu,  shell: bash  }
+          - { os: macos,   shell: bash  }
         java: [ '8', '11', '17' ]
 
-    name: ${{ matrix.os }},jdk ${{ matrix.java }}
+    defaults:
+      run:
+        shell: ${{ matrix.sys.shell }}
+
+    name: ${{ matrix.sys.os }},jdk ${{ matrix.java }}
 
     steps:
     #
     # Tell git not to convert newlines on checkout for Windows
     #
     - name: Prepare git (Windows)
       run: git config --global core.autocrlf false
-      if: matrix.os == 'windows-latest'
+      if: matrix.sys.os == 'windows'
 
     - uses: actions/checkout@v3
 
@@ -56,16 +64,16 @@ jobs:
     #
     - name: Install planck (macOS)
       run: brew install planck
-      if: matrix.os == 'macos-latest'
+      if: matrix.sys.os == 'macos-latest'
     - name: Install planck (linux)
       run: |
         sudo add-apt-repository -y ppa:mfikes/planck
         sudo apt-get update
         sudo apt-get install -y planck
-      if: matrix.os == 'ubuntu-latest'
+      if: matrix.sys.os == 'ubuntu'
     - name: Install planck (macOS)
       run: brew install planck
-      if: matrix.os == 'macos-latest'
+      if: matrix.sys.os == 'macos'
 
     #
     # Install Clojure & Babashka
@@ -77,9 +85,6 @@ jobs:
         bb: 'latest'
         github-token: ${{ secrets.GITHUB_TOKEN }}
 
-    - name: Bring down ClojureTools early
-      run: clojure -Sdescribe
-
     #
     # Summarize installs
     #
@@ -97,17 +102,17 @@ jobs:
       run: |
         echo "planck --version"
         planck --version
-      if: matrix.os != 'windows-latest'
+      if: matrix.sys.os != 'windows'
 
     #
     # Node modules
     #
     - name: Install karma command line (windows)
       run: npm install karma-cli -g
-      if: matrix.os == 'windows-latest'
+      if: matrix.sys.os == 'windows-latest'
     - name: Install karma command line (macos, linux)
       run: sudo npm install karma-cli -g
-      if: matrix.os != 'windows-latest'
+      if: matrix.sys.os != 'windows-latest'
 
     - name: Install node modules
       run: npm install