Enhance xcodegen error diagnostics and retry logic

Improved diagnostics and error handling for xcodegen generation process.

Author: NovaDev404

.github/workflows/build-unsigned-ipa.yml

@@ -92,11 +92,89 @@ jobs:
 
       - name: Generate Xcode Project
         run: |
+          set -euo pipefail
+
+          echo "=== diagnostic: PATH and which xcodegen ==="
+          echo "PATH=$PATH"
+          which xcodegen || true
+
+          if command -v xcodegen >/dev/null 2>&1; then
+            echo "=== xcodegen --version ==="
+            xcodegen --version || true
+
+            echo "=== file info for xcodegen binary (arch info) ==="
+            file "$(command -v xcodegen)" || true
+          else
+            echo "xcodegen not found — attempting to install via brew"
+            if command -v brew >/dev/null 2>&1; then
+              brew update || true
+              brew install xcodegen || true
+            fi
+          fi
+
+          echo "=== running xcodegen generate --spec project.yml --verbose ==="
+          # run xcodegen but capture non-zero rather than letting set -e kill the job immediately
+          set +e
+          xcodegen generate --spec project.yml --verbose
+          rc=$?
           set -e
-          xcodegen generate --spec project.yml
-          echo "Generated project at: $(pwd)/prostore.xcodeproj"
+
+          if [ $rc -ne 0 ]; then
+            echo "❌ xcodegen exited with code $rc — collecting diagnostics..."
+
+            echo "---- macOS unified log for xcodegen (last 5m) ----"
+            # unified logging (may require permission on some runners) - best-effort
+            log show --style syslog --predicate 'process == "xcodegen"' --last 5m || true
+
+            echo "---- Recent DiagnosticReports (may contain a crash log) ----"
+            ls -la ~/Library/Logs/DiagnosticReports | tail -n 20 || true
+
+            echo "---- /var/log/system.log (tail) ----"
+            sudo tail -n 200 /var/log/system.log || true
+
+            if command -v brew >/dev/null 2>&1; then
+              echo "Attempting: brew reinstall xcodegen (then retry once)..."
+              brew reinstall xcodegen || brew install xcodegen || true
+
+              echo "Retrying xcodegen generate --spec project.yml --verbose (one retry)..."
+              set +e
+              xcodegen generate --spec project.yml --verbose
+              retry_rc=$?
+              set -e
+
+              if [ $retry_rc -eq 0 ]; then
+                echo "✅ xcodegen succeeded on retry."
+                echo "Generated project at: $(pwd)/prostore.xcodeproj"
+                sed -n '1,60p' prostore.xcodeproj/project.pbxproj || true
+                exit 0
+              else
+                echo "❌ Retry failed with exit code $retry_rc."
+              fi
+            fi
+
+            echo ""
+            echo "Possible causes:"
+            echo "- xcodegen binary is crashing due to incompatible architecture (ARM vs x86_64)."
+            echo "- Corrupt xcodegen install or an OS-level incompatibility."
+            echo ""
+            echo "Quick diagnostics you can run locally:"
+            echo "  file $(which xcodegen)                  # check binary arch"
+            echo "  xcodegen --version"
+            echo "  arch -x86_64 xcodegen generate --spec project.yml   # try forcing x86_64 (only if Rosetta is available)"
+            echo ""
+            echo "If this persists on the GitHub-hosted runner, try one of:"
+            echo "- Force running xcodegen under Rosetta (arch -x86_64) if the binary is x86_64 and Rosetta is installed."
+            echo "- Use a different runner image (e.g. macos-latest / macos-12) that better matches the xcodegen build."
+            echo "- Rebuild xcodegen locally from source or use a known-good prebuilt binary."
+            echo ""
+            # fail the step with the original rc (keeps behaviour obvious)
+            exit $rc
+          fi
+
+          echo "✅ Generated project at: $(pwd)/prostore.xcodeproj"
           echo "project.pbxproj header (first 60 lines):"
           sed -n '1,60p' prostore.xcodeproj/project.pbxproj || true
+        shell: /bin/bash
 
       - name: Resolve Swift Packages
         run: |