Further CI/CD debugging

Author: Tim Middleton

.github/workflows/build.yaml

@@ -33,6 +33,28 @@ jobs:
       with:
         fetch-depth: 0
 
+      #   This step will free up disc space on the runner by removing
+      #   lots of things that we do not need.
+    - name: disc
+      shell: bash
+      run: |
+        echo "Listing 100 largest packages"
+        dpkg-query -Wf '${Installed-Size}\t${Package}\n' | sort -n | tail -n 100
+        df -h
+        echo "Removing large packages"
+        sudo apt-get remove -y '^dotnet-.*' || true
+        sudo apt-get remove -y '^llvm-.*' || true
+        sudo apt-get remove -y 'monodoc-http' || true
+        sudo apt-get remove -y 'php.*' || true
+        sudo apt-get remove -y azure-cli google-cloud-sdk hhvm google-chrome-stable firefox powershell mono-devel || true
+        sudo apt-get autoremove -y || true
+        sudo apt-get clean
+        df -h
+        echo "Removing large directories"
+        rm -rf /usr/share/dotnet/
+        sudo rm -rf /usr/local/lib/android
+        df -h
+
     - name: Get Docker Images
       shell: bash
       run: |