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.github/workflows/ci.yml

@@ -86,21 +86,35 @@ jobs:
 
   test-minimum-supported-versions:
     name: Minimum Supported Versions Test
-    runs-on: ubuntu-20.04
+    strategy:
+      matrix:
+        os: [ubuntu-20.04]
+
+    runs-on: ${{ matrix.os }}
 
     steps:
       - uses: actions/checkout@v4
 
+      - name: Cache Bash dependencies
+        uses: actions/cache@v3
+        with:
+          path: /tmp/bash-4.3
+          key: bash-${{ runner.os }}-4.3
+          restore-keys: |
+            bash-${{ runner.os }}-
+
       - name: Install Bash 4.3
         run: |
-          sudo apt-get update
-          sudo apt-get install -y build-essential wget  # Install necessary build tools
-          wget http://ftp.gnu.org/gnu/bash/bash-4.3.tar.gz
-          tar -xvzf bash-4.3.tar.gz
-          cd bash-4.3
-          ./configure
-          make
-          sudo make install
+          if [ ! -d "/tmp/bash-4.3" ]; then
+            sudo apt-get update
+            sudo apt-get install -y build-essential wget  # Install necessary build tools
+            wget http://ftp.gnu.org/gnu/bash/bash-4.3.tar.gz
+            tar -xvzf bash-4.3.tar.gz
+            cd bash-4.3
+            ./configure
+            make
+            sudo make install
+          fi
           echo "============================================"
           bash --version  # Verify the installed Bash version
 
@@ -122,4 +136,6 @@ jobs:
 
       - name: Run the tests
         run: |
+          bash --version
+          zsh --version
           script make test