Add Interstellar CI (#1604)

Author: otherview

.github/workflows/test-e2e.yaml

@@ -76,3 +76,37 @@ jobs:
     permissions:
       contents: read
     secrets: inherit
+
+  detect-interstellar:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+    outputs:
+      enabled: ${{ steps.check.outputs.enabled }}
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          sparse-checkout: thor/fork_config.go
+          sparse-checkout-cone-mode: false
+      - name: Check for INTERSTELLAR fork definition
+        id: check
+        run: |
+          # INTERSTELLAR is considered defined when the SoloFork block in
+          # thor/fork_config.go contains an INTERSTELLAR field, regardless of value.
+          # Its presence indicates the fork has been implemented and is ready for e2e testing.
+          if awk '/var SoloFork/,/^}/' thor/fork_config.go | grep -q 'INTERSTELLAR'; then
+            echo "enabled=true" >> "$GITHUB_OUTPUT"
+          else
+            echo "enabled=false" >> "$GITHUB_OUTPUT"
+          fi
+
+  run-interstellar-tests:
+    needs: detect-interstellar
+    if: needs.detect-interstellar.outputs.enabled == 'true'
+    uses: vechain/interstellar-e2e/.github/workflows/test.yml@main
+    with:
+      thor-branch: ${{ github.head_ref || github.ref_name }}
+      thor-repo: ${{ github.event.pull_request.head.repo.full_name || github.repository }}
+    permissions:
+      contents: read
+    secrets: inherit