[copilot] mount directories, more logging (#1301)

Merging to test on other pull requests.

Author: jonathanpeppers

.github/workflows/copilot-setup-steps.yml

@@ -13,6 +13,22 @@ jobs:
     - name: Log disk space (after checkout)
       uses: ./.github/workflows/log-disk-space
 
+    - name: Setup build directories on secondary disk
+      run: |
+        echo "Setting up build directories on /mnt (secondary disk with 66G+ free)"
+        mkdir -p /mnt/build-output
+        mkdir -p /mnt/externals
+        mkdir -p /mnt/generated
+        
+        # Create symlinks to use the secondary disk
+        ln -s /mnt/build-output ./output
+        ln -s /mnt/externals ./externals-link
+        ln -s /mnt/generated ./generated-link
+        
+        echo "Build directories configured:"
+        ls -la | grep -E "(output|externals|generated)"
+        df -h /mnt
+
     - name: Setup .NET
       uses: actions/setup-dotnet@v4
       with:
@@ -54,13 +70,17 @@ jobs:
 
     - name: Log disk space (after externals cache restore)
       uses: ./.github/workflows/log-disk-space
+      with:
+        detailed: 'true'
 
     - name: Run dotnet cake
       run: dotnet cake
       continue-on-error: true
 
     - name: Log disk space (after dotnet cake)
       uses: ./.github/workflows/log-disk-space
+      with:
+        detailed: 'true'
 
     # Save the externals cache after dotnet cake runs
     # This ensures the cache reflects the original config.json state

.github/workflows/log-disk-space/action.yml

@@ -1,5 +1,10 @@
 name: Log Disk Space
 description: Logs disk space usage on the runner
+inputs:
+  detailed:
+    description: 'Whether to include detailed disk analysis (true/false)'
+    required: false
+    default: 'false'
 runs:
   using: composite
   steps:
@@ -17,3 +22,39 @@ runs:
       echo ""
       echo "=== Disk Usage Summary ==="
       df -h / | tail -1 | awk '{print "Used: " $3 " / " $2 " (" $5 " full)"}'
+      
+      # Detailed analysis if requested
+      if [ "${{ inputs.detailed }}" = "true" ]; then
+        echo ""
+        echo "=== DETAILED ANALYSIS ==="
+        echo ""
+        echo "=== Largest directories in /home/runner ==="
+        sudo du -h /home/runner 2>/dev/null | sort -rh | head -20
+        echo ""
+        echo "=== Largest directories in /opt ==="
+        sudo du -h /opt 2>/dev/null | sort -rh | head -20
+        echo ""
+        echo "=== Workspace breakdown (top level) ==="
+        du -h --max-depth=1 . 2>/dev/null | sort -rh
+        echo ""
+        echo "=== Workspace breakdown (2 levels deep) ==="
+        du -h --max-depth=2 . 2>/dev/null | sort -rh | head -30
+        echo ""
+        echo "=== externals directory ==="
+        du -sh ./externals/* 2>/dev/null | sort -rh | head -20 || echo "No externals"
+        echo ""
+        echo "=== output directory ==="
+        du -sh ./output/* 2>/dev/null | sort -rh | head -20 || echo "No output"
+        echo ""
+        echo "=== generated directory ==="
+        du -sh ./generated/* 2>/dev/null | sort -rh | head -20 || echo "No generated"
+        echo ""
+        echo "=== /mnt disk usage ==="
+        du -h --max-depth=1 /mnt 2>/dev/null | sort -rh
+        echo ""
+        echo "=== Docker usage ==="
+        docker system df 2>/dev/null || echo "Docker not available"
+        echo ""
+        echo "=== Temp directories ==="
+        du -sh /tmp /var/tmp 2>/dev/null || true
+      fi